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P r o d u c t IIn n o v a t i o n FFr room nnova m
PA78 PA78
DESCRIPTION
Power Operational Amplifier
FEATURES
A Unique (Patent Pending) Technique for Very Low Quiescent Current Over 350 V/s Slew Rate Wide Supply Voltage Single Supply: 20V To 350V Split Supplies: 10V To 175V Output Current - 150mA Cont.; 200mA Pk Up to 23 Watt Dissipation Capability Over 200 kHz Power Bandwidth
The PA78 is a high voltage, high speed, low idle current op-amp capable of delivering up to 200mA peak output current. Due to the dynamic biasing of the input stage, it can achieve slew rates over 350V/s, while only consuming less than 1mA of idle current. External phase compensation allows great flexibility for the user to optimize bandwidth and stability. The output stage is protected with user selected current limit resistor. For the selection of this current limiting resistor, pay close attention to the SOA curves for each package type. Proper heatsinking is required for maximum reliability.
APPLICATIONS

Piezoelectric Positioning and Actuation Electrostatic Deflection Deformable Mirror Actuators Chemical and Biological Stimulators
BLOCK DIAGRAM
ACTIVE LOAD VOUT+ BUFFER V+ CLASS AB INPUT STAGE
V-
ACTIVE LOAD
VOUT-
CURRENT LIMIT
VOUT
20-Pin PSOP PACKAGE STYLE DK
12-Pin SIP PACKAGE STYLE EU LEAD FORM EW
Copyright (c) Cirrus Logic, Inc. 2009 (All Rights Reserved)
PA78U
http://www.cirrus.com
JUL 2009 1 APEX - PA78UREVB
P r o d u c t I n n o v a t i o nF r o m
PA78
Test Conditions Min
10
Parameter
POWER SUPPLY VOLTAGE CURRENT, quiescent ThERMAL RESISTANCE, DC, junction to case (PA78EU) RESISTANCE, DC, junction to air (PA78EU) RESISTANCE, DC, junction to case (PA78DK)
Typ
150 0.7
Max
175 2.5
Units
V mA
(Note 5) 150V Supply
0.2
Full temperature range Full temperature range Full temperature range
5.5 12.21 8.3 25 19.1 -40 125 9.1
C/W C/W C/W C/W C/W C
RESISTANCE, DC, junction to air Full temperature range (PA78DK) (Note 6) RESISTANCE, DC, junction to air Full temperature range (PA78DK) (Note 7) TEMPERATURE RANGE, case
NOTES: 1. Unless otherwise noted: TC = 25C, DC input specifications are value given, power supply voltage is typical rating. 2. Long term operation at the maximum junction temperature will result in reduced product life. Derate power dissipation to achieve high MTTF. 3. +VS and -VS denote the positive and negative supply voltages of the output stage. 4. Rating applies if output current alternates between both output transistors at a rate faster than 60Hz. 5. Supply current increases with signal frequency. See graph on page 4. 6. Rating applies when the heatslug of the DK package is soldered to a minimum of 1 square inch foil area of a printed circuit board. 7. Rating applies with the JEDEC conditions outlined in the Heatsinksing section of this datasheet.
ExTERNAL CONNECTIONS DK Package
*/ */ $ $ $
3 3 $
ExTERNAL CONNECTIONS EU Package
PA78EU
12-pin SIP _VS ILIM VOUT CC1 2 3 RLIM TO LOAD RF -VS 4 33pF 5 -IN 6 +IN CR+ 7 8 9 CR- CC+ +VS 10 RC+ CC+ RC11 12 +VS
m m 1"%, 1*/1401
$ $m 7 065 *74
7
4
CCRIN
PA78U
3
PA78
TYPICAL APPLICATION CIRCUIT
P r o d u c t I n n o v a t i o nF r o m
The PA78 is ideally suited for driving continuous drop ink jet printers, in both piezo actuation and deflection applications. The high voltage of the amplifier creates an electrostatic field on the deflection plates to control the position of the ink droplets. The rate at which droplets can be printed is directly related to the rate at which the amplifier can drive the plate to a different electrostatic field strength.
+335V
RC CC
100K
1.6K 0-5V DAC
RCL DEFLECTION PLATE
CC RC -15V
INK DROPLETS
TYPICAL PERFORMANCE GRAPhS
350
INTERNAL POWER DISSIPATION, P (W)
POWER RESPONSE
GAIN = -50
160
CURRENT LIMIT
25 20 15 10 5 0
POWER DERATING
CURRENT LIMIT, ILIM (mA)
OUTPUT VOLTAGE, (V)
300 250 200 150 100 50 0 1 NO COMPENSATION 100 10 FREQUENCY, (KHz) 1000 GAIN = -100
140 120 100 80 60 40 20 0 0 -VS 50 RESISTOR VALUE ( ) 100 +VS
PA
PA 78
78
EU
DK
0
POWER SUPPLY REJECTION (dB)
80 60 40 20 0 100 +VS
-VS
COMMON MODE REJECTION (dB)
100
VOLTAGE DROP FROM SUPPLY (V)
POWER SUPPLY REJECTION
OUTPUT VOLTAGE SWING
12 10 8 6 4 2 0 50 100 150 200 PEAK TO PEAK LOAD CURRENT (mA) 1 0 -VS SIDE DROP
25 50 75 100 125 CASE TEMPERATURE, TC (C)
140 120 100
COMMON MODE REJECTION
80 60 40 20 0 1 10 100 1K 10K 100K FREQUENCY (Hz)
+VS SIDE DROP
1K FREQUENCY, (Hz) 1
10K
PA78DK SOA
PULSE CURVES @ 10% DUTY CYCLE MAX
PA78EU SOA
PULSE CURVES @ 10% DUTY CYCLE MAX
CURRENT, AMPS (A)
CURRENT, AMPS (A)
S C 0m 25 S 20 = 0m T C 5C 30 C, 8 = D C ,T
S C 0m S 25 20 0m = C C 30 85 ,T C T C= , C D D
0.1
0.1
0.01 10 100 1000 SUPPLY TO OUTPUT DIFFERENTIAL, VS - VO (V)
0.01 10 100 1000 SUPPLY TO OUTPUT DIFFERENTIAL, VS - VO (V)
C D
4
PA78U
P r o d u c t I n n o v a t i o nF r o m
PA78
100 80
GAIN, Db
SMALL SIGNAL OPEN LOOP GAIN
RC = OPEN, CC = 0pF RC = 3.3K, CC = 1pF RC = 3.3K, CC = 2.2pF RC = 3.3K, CC = 5pF CS = 68pF PIN = -40dBm RBIAS = OPEN RS = 48.7 VS = 50V 1
60 40 20 0 -20
RC = 3.3K, CC = 10pF RC = 3.3K, CC = 22pF 10 100 FREQUENCY, KHz 1000 180 150 120
PHASE,
180 150 120
PHASE,
SMALL SIGNAL OPEN LOOP PHASE, VO = 250mVP-P
RC = 3.3K, CC = 22pF RC = 3.3K, CC = 10pF
SMALL SIGNAL OPEN LOOP PHASE
RC = 3.3K, CC = 22pF RC = 3.3K, CC = 10pF
90 60 30 0 CS = 68pF -30 PIN = -40dBm = OPEN R -60 RBIAS 48.7 = S -90 1 45 35 25 500 mVP-P RC = 3.3K, CC = 5pF RC = 3.3K, CC = 2.2pF RC = 3.3K, CC = 1pF RC = OPEN, CC = 0pF 10 100 FREQUENCY, KHz 1000
90 60 CS = 68pF 0 PIN = -40dBm -30 RBIAS = 100K R = 48.7 -60 V S = 50V S -90 1 35 25 15 CC = 1pF A V = +26 RBIAS = 100K RF = 35.7K RG = 1.5K RL = 50K VS = 50V 10 CC = 2.2pF CC = 5pF CC = 10pF CC = 22pF 100 1K FREQUENCY, KHz 10K 30 RC = 3.3K, CC = 5pF RC = 3.3K, CC = 2.2pF RC = 3.3K, CC = 1pF RC = OPEN, CC = 0pF 10 100 FREQUENCY, KHz 1000
GAIN vs. INPUT/OUTPUT SIGNAL LEVEL
SMALL SIGNAL GAIN vs. COMPENSATION, VO = 5VP-P
CC = 0pF
GAIN, dB
15 5 -5 -15 -25
GAIN,dB 50 VP-P 10K
A V = +51 RBIAS = 100K RC = OPEN RF = 75K RG = 1.5K RL = 50K VS = 50V 10
5 VP-P
5 -5 -15 -25 -35
100 1K FREQUENCY, KHz CC = 0pF
45 35 25 GAIN,dB 15 5 -5 -15 -25
SMALL SIGNAL GAIN vs. COMPENSATION, VO = 500mVP-P
35 25 15 GAIN,dB
LARGE SIGNAL GAIN vs. COMPENSATION, VO = 50VP-P
CC = 0pF
-35 10
A V = +26 RBIAS = 100K RC = 3.3K RF = 35.7K RG = 1.5K RL = 50K VS = 50V
CC = 1pF CC = 2.2pF CC = 5pF CC = 10pF CC = 22pF 100 1K FREQUENCY, KHz 10K
5 -5 -15 -25 -35 10 A V = +26 RBIAS = 100K RF = 35.7K RG = 1.5K RL = 50K VS = 50V
CC = 1pF CC = 2.2pF CC = 5pF CC = 10pF
CC = 22pF 10K
100 1K FREQUENCY, KHz
PA78U
5
PA78
SR+/SR- (25% - 75%)
SR-
P r o d u c t I n n o v a t i o nF r o m
1000 800 SR, V/s 600 400 200 0 0 2
15 OUTPUT VOLTAGE, V 10 5 0 -5 -10 -15 -4 30 OUTPUT VOLTAGE, V 20 10 0 -10 -20 -30 -4 150 OUTPUT VOLTAGE, V 100 50 0 -50 -2 0 -2 0 SR+ A V = +101 CL = 8pF RF = 25K RG = 250 RL = 50K VS = 150V
TRANSIENT RESPONSE
1VP-P input1
-0.4 -0.8 2 4 TIME, s 2VP-P input2 6 8 10 -1.2 12
4 6 8 10 12 PEAK-TO-PEAK INPUT VOLTAGE
14
16
1000 800 SR, V/s 600 400 200 0 0 2
SR+/SR- (25% -75%)
SR+ SRA V = +51 CL = 8pF RF = 75K RG = 1.5K RL = 50K VS = 150V 4 6 8 10 12 PEAK-TO-PEAK INPUT VOLTAGE 14 16
TRANSIENT RESPONSE
-0.5 -1 2 4 TIME, s 10VP-P input10 6 8 10
-1.5 12 8 6 4 2 0 -2 -4 -6 -8 12 3.0 2.4 1.8 1.2 0.6 0 -0.6 -1.2 -1.8 -2.4 -3.0 INPUT VOLTAGE, V INPUT VOLTAGE, V
1000
SR+/SR- (25% - 75%)
TRANSIENT RESPONSE
A V = +26 CC = 2.2pF CL = 8pF RC = 3.3K RF = 35.7K RG = 1.5K RL = 50K
SR, V/s
A V = +26 C = 8pF 800 RL = 35.6K F RG = 1.5K RL = 50K 600 VS = 150V 400 200 0 0 2
SR+
SR-
-100 -150 -4 -2 0 2 4 6 TIME, s 8 10
4 6 8 10 12 PEAK-TO-PEAK INPUT VOLTAGE
14
16
1 0.8 Time, s 0.6 0.4 0.2 0 0 2
RISE AND FALL TIME (10% - 90%)
A V = +51 CL = 8pF RF = 75K RG = 1.5K RL = 50K VS = 150V
TF TR
4 6 8 10 12 PEAK-TO-PEAK INPUT VOLTAGE
14
16
150 Out - 0pF 120 input 90 60 Out - 1pF & 3.3K 30 0 -30 -60 Out - 5pF & 3.3K -90 -120 -150 -2 -1 0 1 2 3 4 TIME, s
PULSE RESPONSE vs. CC AND RC
A V = +51 CC = 68pF CL = 330pF RC = 48 RF = 75K RG = 1.5K RL = OPEN VS = 150V
OUTPUT VOLTAGE, V
5
6
7
8
6
PA78U
INPUT VOLTAGE, V
1.5 A V = +26 CC = 2.2pF 1 CL = 8pF RC = 3.3K 0.5 RF = 35.7K RG = 1.5K 0 RL = 50K
INPUT VOLTAGE, V
1.2 A V = +26 CC = 2.2pF 0.8 CL = 8pF RC = 3.3K 0.4 RF = 35.7K RG = 1.5K 0 RL = 50K
P r o d u c t I n n o v a t i o nF r o m
PA78
PULSE RESPONSE
A V = +51 CL = 8pF RF = 75K RG = 1.5K RL = 50K VS = 150V
140 120 100 80 60 40 20 0 -20 -40 -60 -80 -6 -4 -2 0
PULSE RESPONSE vs. CAP LOAD
300pf, 3VP-P 200pf, 3VP-P 100pf, 3VP-P
0.2 0.15 IS, A 0.1
OUTPUT, V
A V = -50 RF = 75K RG = 1.5K RL = 50K VS = 150V 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 TIME, s 300pF, 2VP-P 200pF, 2VP-P 100pF, 2VP-P
0.05 0 -0.05 -1 0 1 2 3 TIME,s 4 5 6
140 120 100 80 60 40 20 0 -20 -40 -60 -80 -6 -4 -2 0 140 120 100 80 60 40 20 0 -20 -40 -60 -80 -6 -4 -2 0
PULSE RESPONSE vs. CAP LOAD
OUTPUT VOLTAGE, V
300 200 100 0
OVERDRIVE RECOVERY
A V = +51 CC = OPEN CL = 8pF RC = OPEN RF = 75K RG = 1.5K RL = 50K VS = 150V INPUT
6 4
OUTPUT, V
OUTPUT
2 0 -2 -4
A V = -50 RF = 75K RG = 1.5K RL = 50K VS = 150V CL = 8pF 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 TIME, s 300pF, 1VP-P 200pF, 1VP-P 100pF, 1VP-P
-100 -200 -300 -6
-4
-2
0
2 4 TIME, s
6
8
10
-6 12
PULSE RESPONSE vs. CAP LOAD
18 16 14 12
IS, mA
IS vs. VIN
A V = +51 CL = 8pF CS = 68pF RF = 75K RG = 1.5K RL = 50K RS = 48.7 VS = 150V
OUTPUT, V
10 8 6 4 2 0 0
A V = -50 RF = 75K RG = 1.5K RL = 50K VS = 150V 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 TIME, s
1
2
3 4 5 6 VIN, VP-P (100KHz sine wave)
7
8
9
30 25 20
SUPPLY CURRENT vs. FREQUENCY
A V = +51 CL = 8pF CS = 68pF RF = 75K RG = 1.5K RL = 50K RS = 48.7 VS = 150V
IS, mA
15 10 5 0 10
VIN = 6VP VIN = 3VP
100 Frequency, (KHz sine wave)
1000
PA78U
INPUT VOLTAGE, V
7
PA78
GENERAL
P r o d u c t I n n o v a t i o nF r o m
Please read Application note 1 "General operating considerations" which covers stability, power supplies, heat sinking, mounting, current limit, SOA interpretation, and specification interpretation. Visit www. cirrus.com for design tools that help automate tasks such as calculations for stability, internal power dissipation, and current limit. There you will also find a complete application notes library, technical seminar workbook, and evaluation kits.
1200
SR+/SR- (25%-75%)
SR+(A V = -25) SR-(A V = -25) SR+(A V = +26) SR-(A V = +26)
SR+/SR- V/s
RF = 75K 1000 RG = 1.5K RL = 50K 800 VS = 150V CL = 8pF 600 400 200 0 0 1 2 3
ThEORY OF OPERATION
The PA78 is designed specifically as a high speed pulse amplifier. In order to achieve high slew rates with low idle current, the internal design is quite different from traditional voltage feedback amplifiers. Basic op amp behaviors like high input impedance and high open loop gain still apply. But there are some notable differences, such as signal dependent supply current, bandwidth and output impedance, among others. The impact of these differences varies depending on application performance requirements and circumstances. These different behaviors are ideal for some applications but can make designs more challenging in other circumstances.
4 5 6 7 8 9 10 11 12 13 14 15 PEAK TO PEAK INPUT VOLTAGE
1600
SR+/SR- (25%-75%)
V/s
R = 75K 1400 RF = 1.5K G 1200 RL = 50K VS = 150V 1000 C = 8pF L 800 600 400 200 0 0 1 2 SR+(A V = -50) SR-(A V = -50) SR+(A V = +51) SR-(A V = +51) 3 4 5 6 7 8 9 10 11 12 13 14 15 INPUT VOLTAGE, VOLTS PEAK-TO-PEAK
SUPPLY CURRENT AND BYPASS CAPACITANCE
A traditional voltage feedback amplifier relies on fixed current sources in each stage to drive the parasitic capacitances of the next stage. These currents combine to define the idle or quiescent current of the amplifier. By design, these fixed currents are often the limiting parameter for slew rate and bandwidth of the amplifier. Amplifiers which are high voltage and have fast slew rates typically have high idle currents and dissipate notable power with no signal applied to the load. At the heart of the PA78 design is a signal dependent current source which strikes a new balance between supply current and dynamic performance. With small input signals, the supply current of the PA78 is very low, idling at less than 1 mA. With large transient input signals, the supply currents increase dramatically to allow the amplifier stages to respond quickly. The Pulse Response plot in the typical performance section of this datasheet describes the dynamic nature of the supply current with various input transients. Choosing proper bypass capacitance requires careful consideration of the dynamic supply currents. High frequency ceramic capacitors of 0.1F or more should be placed as close as possible to the amplifier supply pins. The inductance of the routing from the supply pins to these ceramic capacitors will limit the supply of peak current during transients, thus reducing the slew rate of the PA78. The high frequency capacitance should be supplemented by additional bypass capacitance not more than a few centimeters from the amplifier. This additional bypass can be a slower capacitor technology, such as electrolytic, and is necessary to keep the supplies stable during sustained output currents. Generally, a few microfarad is sufficient.
SMALL SIGNAL PERFORMANCE
The small signal performance plots in the typical performance section of this datasheet describe the behavior when the dynamic current sources described previously are near the idle state. The selection of compensation capacitor directly affects the open loop gain and phase performance. Depending on the configuration of the amplifier, these plots show that the phase margin can diminish to very low levels when left uncompensated. This is due to the amount of bias current in the input stage when the part is in
8
PA78U
P r o d u c t I n n o v a t i o nF r o m
PA78
standby. An increase in the idle current in the output stage of the amplifier will improve phase margin for small signals although will increase the overall supply current. Current can be injected into the output stage by adding a resistor, RBIAS, between CC- and VS+. The size of RBIAS will depend upon the application but 500A (50V V+ supply/100K) of added bias current shows significant improvement in the small signal phase plots. Adding this resistor has little to no impact on small signal gain or large signal performance as under these conditions the current in the input stage is elevated over its idle value. It should also be noted that connecting a resistor to the upper supply only injects a fixed current and if the upper supply is fixed and well bypassed. If the application includes variable or adjustable supplies, a current source diode could also be used. These two terminal components combine a JFET and resistor connected within the package to behave like a current source. As a second stability measure, the PA78 is externally compensated and performance can be optimized to the application. Unlike the RBIAS technique, external phase compensation maintains the low idle current but does affect the large signal response of the amplifier. Refer to the small and large signal response plots as a guide in making the tradeoffs between bandwidth and stability. Due to the unique design of the PA78, two symmetric compensation networks are required. The compensation capacitor Cc must be rated for a working voltage of the full operating supply voltage (+VS to -VS). NPO capacitors are recommended to maintain the desired level of compensation over temperature. The PA78 requires an external 33pF capacitor between CC- and -VS to prevent oscillations in the falling edge of the output. This capacitor should be rated for the full supply voltage (+VS to -VS). As the amplitude of the input signal increases, the internal dynamic current sources increase the operation bandwidth of the amplifier. This unique performance is apparent in its slew rate, pulse response, and large signal performance plots. Recall the previous discussion about the relationships between signal amplitude, supply current, and slew rate. As the amplitude of the input amplitude increases from 1VP-P to 15VP-P, the slew rate increases from 50V/ s to well over 350V/s. Notice the knee in the Rise and Fall times plot, at approximately 6VP-P input voltage. Beyond this point the output becomes clipped by the supply rails and the amplifier is no longer operating in a closed loop fashion. The rise and fall times become faster as the dynamic current sources are providing maximum current for slewing. The result of this amplifier architecture is that it slews fast, but allows good control of overshoot for large input signals. This can be seen clearly in the large signal Transient Response plots.
LARGE SIGNAL PERFORMANCE
hEATSINKING AND SAFE OPERATING AREA
The MOSFET output stage of the PA78 is not limited by second breakdown considerations as in bipolar output stages. Only thermal considerations of the package and current handling capabilities limit the Safe Operating Area. The SOA plots include power dissipation limitations which are dependent upon case temperature. Keep in mind that the dynamic current sources which drive high slew rates can increase the operating temperature of the amplifier during periods of repeated slewing. The plot of supply current vs. input signal amplitude for a 100 kHz signal provides an indication of the supply current with repeated slewing conditions. This application dependent condition must be considered carefully. The output stage is self-protected against transient flyback by the parasitic body diodes of the output stage. However, for protection against sustained high energy flyback, external, fast recovery diodes must be used. For proper operation, the current limit resistor, RLIM, must be connected as shown in the external connections diagram. For maximum reliability and protection, the largest resistor value should be used. The minimum practical value for RLIM is about 12. However, refer to the SOA curves for each package type to assist in selecting the optimum value for RLIM in the intended application. Current limit may not protect against short circuit conditions with supply voltages over 200V.
CURRENT LIMIT
PA78U
9
PA78
LAYOUT CONSIDERATIONS
P r o d u c t I n n o v a t i o nF r o m
The PA78 is built on a dielectrically isolated process and the package tab is therefore not electrically connected to the amplifier. For high speed operation, the package tab should be connected to a stable reference to reduce capacitive coupling between amplifier nodes and the floating tab. It is often convenient to directly connect the tab to GND or one of the supply rails, but an AC connection through a 1F capacitor to GND is also sufficient if a DC connection is undesirable Care should be taken to position the RC / CC compensation networks close to the amplifier compensation pins. Long loops in these paths pick up noise and increase the likelihood of LC interactions and oscillations. The PA78DK package has a large exposed integrated copper heatslug to which the monolithic amplifier is directly attached. The solder connection of the heat slug to a 1 square inch foil area on the printed circuit board will result in improved thermal performance of 25C/W. In order to improve the thermal performance, multiple metal layers in the printed circuit board are recommended. This may be adequate heatsinking but the large number of variables involved suggest temperature measurements be made on the top of the package. Do not allow the temperature to exceed 85C. The junction to ambient thermal resistance of the DK package can achieve a 19.1C/W rating by using the PCB conditions outlined in JEDEC standard: (JESD51-5): PCB Conditions: PCB Layers = 4L, Copper, FR-4 PCB Dimensions = 101.6 x 114.3mm PCB Thickness = 1.6mm Conditions: Power dissipation = 2 watt Ambient Temperature = 55C
ELECTROSTATIC DISChARGE
Like many high performance MOSFET amplifiers, the PA78 very sensitive to damage due to electrostatic discharge (ESD). Failure to follow proper ESD handling procedures could have results ranging from reduced operating performance to catastrophic damage. Minimum proper handling includes the use of grounded wrist or shoe straps, grounded work surfaces. Ionizers directed at the work in progress can neutralize the charge build up in the work environment and are strongly recommended.
CONTACTING CIRRUS LOGIC SUPPORT
For all Apex Precision Power product questions and inquiries, call toll free 800-546-2739 in North America. For inquiries via email, please contact tucson.support@cirrus.com. International customers can also request support by contacting their local Cirrus Logic Sales Representative. To find the one nearest to you, go to www.cirrus.com
IMPORTANT NOTICE Cirrus Logic, Inc. and its subsidiaries ("Cirrus") believe that the information contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided "AS IS" without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus for the use of this information, including use of this information as the basis for manufacture or sale of any items, or for infringement of patents or other rights of third parties. This document is the property of Cirrus and by furnishing this information, Cirrus grants no license, express or implied under any patents, mask work rights, copyrights, trademarks, trade secrets or other intellectual property rights. Cirrus owns the copyrights associated with the information contained herein and gives consent for copies to be made of the information only for use within your organization with respect to Cirrus integrated circuits or other products of Cirrus. This consent does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ("CRITICAL APPLICATIONS"). CIRRUS PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED TO BE SUITABLE FOR USE IN PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, AUTOMOTIVE SAFETY OR SECURITY DEVICES, LIFE SUPPORT PRODUCTS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK AND CIRRUS DISCLAIMS AND MAKES NO WARRANTY, EXPRESS, STATUTORY OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE, WITH REGARD TO ANY CIRRUS PRODUCT THAT IS USED IN SUCH A MANNER. IF THE CUSTOMER OR CUSTOMER'S CUSTOMER USES OR PERMITS THE USE OF CIRRUS PRODUCTS IN CRITICAL APPLICATIONS, CUSTOMER AGREES, BY SUCH USE, TO FULLY INDEMNIFY CIRRUS, ITS OFFICERS, DIRECTORS, EMPLOYEES, DISTRIBUTORS AND OTHER AGENTS FROM ANY AND ALL LIABILITY, INCLUDING ATTORNEYS' FEES AND COSTS, THAT MAY RESULT FROM OR ARISE IN CONNECTION WITH THESE USES. Cirrus Logic, Cirrus, and the Cirrus Logic logo designs, Apex Precision Power, Apex and the Apex Precision Power logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks or service marks of their respective owners.
10
PA78U

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