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EL5412
Data Sheet December 22, 2004 FN7394.1
40MHz Rail-to-Rail Input-Output Op Amp
The EL5412 is a low power, high voltage rail-to-rail inputoutput amplifier containing four amplifiers in one package. Operating on supplies ranging from 5V to 15V, while consuming only 2.5mA per amplifier, the EL5412 has a bandwidth of 40MHz (-3dB). It also provides common mode input ability beyond the supply rails, as well as rail-to-rail output capability. This enables this amplifier to offer maximum dynamic range at any supply voltage. The EL5412 also features fast slewing and settling times, as well as a high output drive capability of 65mA (sink and source), continuous current, and 190mA short-circuit current. These features make this amplifier ideal for high speed filtering and signal conditioning and VCOM driving applications. Other applications include battery-powered and portable devices and anywhere low power consumption is important. The EL5412 is available in both the 14-pin TSSOP and 14pin HTSSOP packages and features a standard operational amplifier pinout. They are specified for operation over the full -40C to +85C temperature range.
Features
* 40MHz -3dB bandwidth * Supply voltage = 4.5V to 16.5V * Low supply current (per amplifier) = 2.5mA * High slew rate = 55V/s * Unity-gain stable * Beyond the rails input capability * Rail-to-rail output swing * 190mA output short current * Pb-Free Available (RoHS Compliant)
Applications
* TFT-LCD panels * VCOM amplifiers * Drivers for A-to-D converters * Data acquisition * Video processing * Audio processing
Ordering Information
PART NUMBER EL5412IR EL5412IR-T7 EL5412IR-T13 EL5412IRZ (See Note) EL5412IRZ-T7 (See Note) EL5412IRZ-T13 (See Note) EL5412IRE EL5412IRE-T7 EL5412IRE-T13 PACKAGE 14-Pin TSSOP 14-Pin TSSOP 14-Pin TSSOP 14-Pin TSSOP (Pb-free) 14-Pin TSSOP (Pb-free) 14-Pin TSSOP (Pb-free) 14-Pin HTSSOP 14-Pin HTSSOP 14-Pin HTSSOP TAPE & REEL 7" 13" 7" 13" 7" 13" PKG. DWG. # MDP0044 MDP0044 MDP0044 MDP0044 MDP0044 MDP0044 MDP0048 MDP0048 MDP0048
* Active filters * Test equipment * Battery-powered applications * Portable equipment
Pinout
EL5412 (14-PIN TSSOP, 14-PIN HTSSOP) TOP VIEW
VOUTA 1 VINA- 2 VINA+ 3 VS+ 4 VINB+ 5 VINB- 6 VOUTB 7 + + + + 14 VOUTD 13 VIND12 VIND+ 11 VS10 VINC+ 9 VINC8 VOUTC
NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020C.
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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright (c) Intersil Americas Inc. 2003, 2004. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc. All other trademarks mentioned are the property of their respective owners.
EL5412
Absolute Maximum Ratings (TA = 25C)
Supply Voltage between VS+ and VS- . . . . . . . . . . . . . . . . . . . .+18V Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . VS- -0.5V, VS +0.5V Maximum Continuous Output Current . . . . . . . . . . . . . . . . . . . 65mA Maximum Die Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . +125C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65C to +150C Ambient Operating Temperature . . . . . . . . . . . . . . . .-40C to +85C Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA
Electrical Specifications
PARAMETER INPUT CHARACTERISTICS VOS TCVOS IB RIN CIN CMIR CMRR AVOL
VS+ = +5V, VS- = -5V, RL = 1k to 0V, TA = 25C, unless otherwise specified. CONDITIONS MIN TYP MAX UNIT
DESCRIPTION
Input Offset Voltage Average Offset Voltage Drift (Note 1) Input Bias Current Input Impedance Input Capacitance Common-Mode Input Range Common-Mode Rejection Ratio Open-Loop Gain
VCM = 0V
3 7
15
mV V/C
VCM = 0V
2 1 2 -5.5
60
nA G pF
+5.5 70 74
V dB dB
for VIN from -5.5V to 5.5V -4.5V VOUT 4.5V
50 60
OUTPUT CHARACTERISTICS VOL VOH ISC IOUT Output Swing Low Output Swing High Short-circuit Current Output Current IL = -5mA IL = 5mA 4.85 -4.92 4.92 195 65 -4.85 V V mA mA
POWER SUPPLY PERFORMANCE PSRR IS Power Supply Rejection Ratio Supply Current (Per Amplifier) VS is moved from 2.25V to 7.75V No load 60 80 2.5 3.75 dB mA
DYNAMIC PERFORMANCE SR tS BW GBWP PM CS dG dP NOTES: 1. Measured over operating temperature range 2. Slew rate is measured on rising and falling edges 3. NTSC signal generator used Slew Rate (Note 2) Settling to +0.1% (AV = +1) -3dB Bandwidth Gain-Bandwidth Product Phase Margin Channel Separation Differential Gain (Note 3) Differential Phase (Note 3) f = 5MHz RF = RG = 1k and VOUT = 1.4V RF = RG = 1k and VOUT = 1.4V -4.0V VOUT 4.0V, 20% to 80% (AV = +1), VO = 2V Step 55 120 40 22 52 110 0.12 0.17 V/s ns MHz MHz dB %
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FN7394.1 December 22, 2004
EL5412
Electrical Specifications
PARAMETER INPUT CHARACTERISTICS VOS TCVOS IB RIN CIN CMIR CMRR AVOL Input Offset Voltage Average Offset Voltage Drift (Note 1) Input Bias Current Input Impedance Input Capacitance Common-Mode Input Range Common-Mode Rejection Ratio Open-Loop Gain for VIN from -0.5V to 5.5V 0.5V VOUT 4.5V -0.5 45 60 66 74 VCM = 2.5V VCM = 2.5V 3 7 2 1 2 +5.5 60 15 mV V/C nA G pF V dB dB VS+ = +5V, VS- = 0V, RL = 1k to 2.5V, TA = 25C, unless otherwise specified. CONDITION MIN TYP MAX UNIT
DESCRIPTION
OUTPUT CHARACTERISTICS VOL VOH ISC IOUT Output Swing Low Output Swing High Short-circuit Current Output Current IL = -5mA IL = 5mA 4.85 80 4.92 195 65 150 mV V mA mA
POWER SUPPLY PERFORMANCE PSRR IS Power Supply Rejection Ratio Supply Current (Per Amplifier) VS is moved from 4.5V to 15.5V No Load 60 80 2.5 3.75 dB mA
DYNAMIC PERFORMANCE SR tS BW GBWP PM CS dG dP NOTES: 1. Measured over operating temperature range 2. Slew rate is measured on rising and falling edges 3. NTSC signal generator used Slew Rate (Note 2) Settling to +0.1% (AV = +1) -3dB Bandwidth Gain-Bandwidth Product Phase Margin Channel Separation Differential Gain (Note 3) Differential Phase (Note 3) f = 5MHz RF = RG = 1k and VOUT = 1.4V RF = RG = 1k and VOUT = 1.4V 1V VOUT 4V, 20% o 80% (AV = +1), VO = 2V Step 55 120 40 22 52 110 0.30 0.66 V/s ns MHz MHz dB %
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FN7394.1 December 22, 2004
EL5412
Electrical Specifications
PARAMETER INPUT CHARACTERISTICS VOS TCVOS IB RIN CIN CMIR CMRR AVOL Input Offset Voltage Average Offset Voltage Drift (Note 1) Input Bias Current Input Impedance Input Capacitance Common-Mode Input Range Common-Mode Rejection Ratio Open-Loop Gain for VIN from -0.5V to 15.5V 0.5V VOUT 14.5V -0.5 53 60 72 74 VCM = 7.5V VCM = 7.5V 3 7 2 1 2 +15.5 60 15 mV V/C nA G pF V dB dB VS+ = +15V, VS- = 0V, RL = 1k to 7.5V, TA = 25C, unless otherwise specified. CONDITION MIN TYP MAX UNIT
DESCRIPTION
OUTPUT CHARACTERISTICS VOL VOH ISC IOUT Output Swing Low Output Swing High Short-circuit Current Output Current IL = -7.5mA IL = 7.5mA 14.85 180 80 14.92 195 65 150 mV V mA mA
POWER SUPPLY PERFORMANCE PSRR IS Power Supply Rejection Ratio Supply Current (Per Amplifier) VS is moved from 4.5V to 15.5V No Load 60 80 2.5 3.75 dB mA
DYNAMIC PERFORMANCE SR tS BW GBWP PM CS dG dP NOTES: 1. Measured over operating temperature range 2. Slew rate is measured on rising and falling edges 3. NTSC signal generator used Slew Rate (Note 2) Settling to +0.1% (AV = +1) -3dB Bandwidth Gain-Bandwidth Product Phase Margin Channel Separation Differential Gain (Note 3) Differential Phase (Note 3) f = 5MHz RF = RG = 1k and VOUT = 1.4V RF = RG = 1k and VOUT = 1.4V 1V VOUT 14V, 20% o 80% (AV = +1), VO = 2V Step 55 120 40 22 52 110 0.10 0.11 V/s ns MHz MHz dB %
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FN7394.1 December 22, 2004
EL5412 Typical Performance Curves
500 QUANTITY (AMPLIFIERS) 400 300 200 100 0 -8 -6 -4 -2 -0 2 4 6 -12 -10 8 10 12 INPUT OFFSET VOLTAGE (mV) 25 QUANTITY (AMPLIFIERS) VS=5V TA=25C Typical Production Distortion VS=5V 20 15 10 5 0 1 3 5 7 9 13 15 17 19 21 150 150 11 Typical Production Distortion
INPUT OFFSET VOLTAGE DRIFT, TCVOS (V/C)
FIGURE 1. INPUT OFFSET VOLTAGE DISTRIBUTION
FIGURE 2. INPUT OFFSET VOLTAGE DRIFT
5 INPUT OFFSET VOLTAGE (mV) 4 3 2 1 0 -50 INPUT BIAS CURRENT (A)
0.008 0.004 0 -0.004 -0.008
VS=5V
-10
30
70
110
150
-0.012 -50
-10
30
70
110
TEMPERATURE (C)
TEMPERATURE (C)
FIGURE 3. INPUT OFFSET VOLTAGE vs TEMPERATURE
FIGURE 4. INPUT BIAS CURRENT vs TEMPERATURE
4.97 OUTPUT HIGH VOLTAGE (V)
-4.91 OUTPUT LOW VOLTAGE (V) VS=5V IOUT=5mA -4.92 -4.93 -4.94 -4.95 -4.96 -4.97 VS=5V IOUT=-5mA
4.96
4.95
4.94
4.93
-50
0
50
100
150
-50
0
50
100
TEMPERATURE (C)
TEMPERATURE (C)
FIGURE 5. OUTPUT HIGH VOLTAGE vs TEMPERATURE
FIGURE 6. OUTPUT LOW VOLTAGE vs TEMPERATURE
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FN7394.1 December 22, 2004
EL5412 Typical Performance Curves
MEASURED CHANNEL A to D or B to C OTHER COMBINATIONS YIELD IMPROVED REJECTION -60 -80 XTALK (dB) -100 -120 -140 -160 1K VS=5V RL=1k AV=1 VIN=110mVRMS
10K
100K
1M
10M 30M
FREQUENCY (Hz)
FIGURE 7. CHANNEL SEPARATION vs FREQUENCY RESPONSE
Pin Descriptions
PIN NO. 1 PIN NAME VOUTA PIN FUNCTION Amplifier A Output EQUIVALENT CIRCUIT
VS+
GND CIRCUIT 1
VS-
2
VINA-
Amplifier A Inverting Input
VS+
CIRCUIT 2
VS-
3 4 5 6 7 8 9 10 11 12 13 14
VINA+ VS+ VINB+ VINBVOUTB VOUTC VINCVINC+ VSVIND+ VINDVOUTD
Amplifier A Non-Inverting Input Positive Power Supply Amplifier B Non-Inverting Input Amplifier B Inverting Input Amplifier B Output Amplifier C Output Amplifier C Inverting Input Amplifier C Non-Inverting Input Negative Power Supply Amplifier D Non-Inverting Input Amplifier D Inverting Input Amplifier D Output
(Reference Circuit 2)
(Reference Circuit 2) (Reference Circuit 2) (Reference Circuit 1) (Reference Circuit 1) (Reference Circuit 2) (Reference Circuit 2)
(Reference Circuit 2) (Reference Circuit 2) (Reference Circuit 1)
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FN7394.1 December 22, 2004
EL5412 Applications Information
Product Description
The EL5412 voltage feedback amplifier is fabricated using a high voltage CMOS process. It exhibits rail-to-rail input and output capability, is unity gain stable and has low power consumption (2.5mA per amplifier). These features make the EL5412 ideal for a wide range of general-purpose applications. Connected in voltage follower mode and driving a load of 2k, the EL5412 has a -3dB bandwidth of 40MHz while maintaining a 55V/s slew rate. The EL5412 is a quad amplifier.
Output Phase Reversal
The EL5412 is immune to phase reversal as long as the input voltage is limited from VS- -0.5V to VS+ +0.5V. Figure 9 shows a photo of the output of the device with the input voltage driven beyond the supply rails. Although the device's output will not change phase, the input's overvoltage should be avoided. If an input voltage exceeds supply voltage by more than 0.6V, electrostatic protection diodes placed in the input stage of the device begin to conduct and overvoltage damage could occur.
VS=2.5V, TA=25C, AV=1, VIN=6VP-P 1V 10s
Operating Voltage, Input, and Output
The EL5412 is specified with a single nominal supply voltage from 5V to 15V or a split supply with its total range from 5V to 15V. Correct operation is guaranteed for a supply range of 4.5V to 16.5V. Most EL5412 specifications are stable over both the full supply range and operating temperatures of -40C to +85C. Parameter variations with operating voltage and/or temperature are shown in the typical performance curves. The input common-mode voltage range of the EL5412 extends 500mV beyond the supply rails. The output swings of the EL5412 typically extend to within 100mV of positive and negative supply rails with load currents of 5mA. Decreasing load currents will extend the output voltage range even closer to the supply rails. Figure 8 shows the input and output waveforms for the device in the unity-gain configuration. Operation is from 5V supply with a 1k load connected to GND. The input is a 10VP-P sinusoid. The output voltage is approximately 9.8VP-P.
VS=5V, TA=25C, AV=1, VIN=10VP-P 5V 10s
1V
FIGURE 9. OPERATION WITH BEYOND-THE-RAILS INPUT
Power Dissipation
With the high-output drive capability of the EL5412 amplifier, it is possible to exceed the 125C 'absolute-maximum junction temperature' under certain load current conditions. Therefore, it is important to calculate the maximum junction temperature for the application to determine if load conditions need to be modified for the amplifier to remain in the safe operating area. The maximum power dissipation allowed in a package is determined according to:
T JMAX - T AMAX P DMAX = ------------------------------------------- JA
INPUT
where: * TJMAX = Maximum junction temperature * TAMAX = Maximum ambient temperature * JA = Thermal resistance of the package * PDMAX = Maximum power dissipation in the package The maximum power dissipation actually produced by an IC is the total quiescent supply current times the total power supply voltage, plus the power in the IC due to the loads, or:
P DMAX = i [ V S x I SMAX + ( V S + - V OUT i ) x I LOAD i ]
5V
FIGURE 8. OPERATION WITH RAIL-TO-RAIL INPUT AND OUTPUT
Output Current Driving Capability
The EL5412 will limit the short-circuit current to 190mA if the output is directly shorted to the positive or the negative supply. If an output is shorted indefinitely, the power dissipation could easily increase such that the device may be damaged. Maximum reliability is maintained if the output continuous current never exceeds 65mA. This limit is set by the design of the internal metal interconnects. 7
OUTPUT
when sourcing, and:
P DMAX = i [ V S x I SMAX + ( V OUT i - V S - ) x I LOAD i ]
when sinking.
FN7394.1 December 22, 2004
EL5412
Where: * i = Channel 1 to 4 * VS = Total supply voltage
POWER DISSIPATION (mW) 1200 1000 800 600 400 200 0 0 25 50 75 85 100 125 150 PACKAGE MOUNTED ON A JEDEC JESD51-3 LOW EFFECTIVE THERMAL CONDUCTIVITY TEST BOARD MAX TJ=125C
* ISMAX = Maximum supply current per amplifier * VOUTi = Maximum output voltage of the application * ILOADi = Load current If we set the two PDMAX equations equal to each other, we can solve for RLOADi to avoid device overheat. Figure 10 and Figure 11 provide a convenient way to see if the device will overheat. The maximum safe power dissipation can be found graphically, based on the package type and the ambient temperature. By using the previous equation, it is a simple matter to see if PDMAX exceeds the device's power derating curves. To ensure proper operation, it is important to observe the recommended derating curves shown in Figures 10 and 11.
JEDEC JESD51-7 HIGH EFFECTIVE THERMAL CONDUCTIVITY TEST BOARD - HTSSOP EXPOSED DIEPAD SOLDERED TO PCB PER JESD51-5 3.5 POWER DISSIPATION (W) 3 2.5 2 1.5 1.0W 1 0.5 0 0 25
J
694mW 606mW
HT SS =1 OP1 44 C 4 /W TS SO J P1 A =1 4 65 C /W
JA
AMBIENT TEMPERATURE (C)
FIGURE 11. PACKAGE POWER DISSIPATION vs AMBIENT TEMPERATURE
Unused Amplifiers
It is recommended that any unused amplifiers be configured as a unity gain follower. The inverting input should be directly connected to the output and the non-inverting input tied to the ground plane.
2.632W
HT SS O 38 P 14 C /W
P14 0C /W
MAX TJ=125C
JA =
Power Supply Bypassing and Printed Circuit Board Layout
The EL5412 can provide gain at high frequency. As with any high-frequency device, good printed circuit board layout is necessary for optimum performance. Ground plane construction is highly recommended, lead lengths should be as short as possible and the power supply pins must be well bypassed to reduce the risk of oscillation. For normal single supply operation, where the VS- pin is connected to ground, a 0.1F ceramic capacitor should be placed from VS+ to pin to VS- pin. A 4.7F tantalum capacitor should then be connected in parallel, placed in the region of the amplifier. One 4.7F capacitor may be used for multiple devices. This same capacitor combination should be placed at each supply pin to ground if split supplies are to be used.
TSS O
A=10
50
75 85 100
125
150
AMBIENT TEMPERATURE (C)
FIGURE 10. PACKAGE POWER DISSIPATION vs AMBIENT TEMPERATURE
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation's quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com 8
FN7394.1 December 22, 2004

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