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LM146 LM246 - LM346
PROGRAMMABLE QUAD BIPOLAR OPERATIONAL AMPLIFIERS
.PROGRAMMABLE .BATTERYPOWEREDOPERATI .LOWSUPPLYCURRENT( .GAI .LARGEDCVOLTAGEGAI .LOWNOI .WI .CLASSE .OVERLOADPROTECTI
TERISTICS
ELECTRICAL CHARAC-
ON 250A/amplifier) N-BANDWIDTH PRODUCT : 1MHz N : 120dB SE VOLTAGE : 28nV/VHz DE POWER SUPPLY RANGE : 1.5V to 22V AB OUTPUT STAGE. NO CROSSOVER DISTORTION ON FOR INPUTS AND OUTPUTS
N DIP16 (Plastic Package)
D SO16 (Plastic Micropackage)
ORDER CODES
Part Number LM146 LM246 Temperature Range -55oC, +125oC -40 C, +105 C 0 C, +70 C
o o o o
Package N * * * D * * *
DESCRIPTION The LM346 consists of four independent, high gain, internally compensated, low power programmable amplifiers. Two external resistors (Rset) allow the user to program the gain-bandwith product, slew rate, supply current, input bias current, input offset current and input noise. For example the user can trade-off supply current for bandwidth or optimize noise figure for a given source resistance. In a similar way other amplifier characteristics can be tailored to the application. Except for the two programming pins at the end of the package the LM346 pin out is the same as the LM324 and LM348. PROGRAMMING EQUATIONS : Total supply current = 1mA (Iset = 10A) Gain-bandwidthproduct = 1MHz (Iset = 10A) Slew rate = 0.5V/s (Iset = 10A) Input bias current 30 nA (Iset = 10A) Iset = current into pin 8 and pin 9 (see schematic diagram) Iset = VCC + - VCC - - 0.6V Rset
LM346 Example : LM246N
PIN CONNECTIONS (top view)
Output1 Inverting input 1 Non-invertinginput 1 V+ CC Non-invertinginput 2 Inverting input 2 Output2 Set
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
Output4 Inverting input 4 Non-invertinginput 4 VCC Non-invertinginput 3 Inverting input 3 Output 3 Set
November 1997
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LM146 - LM246 - LM346
SCHEMATIC DIAGRAM (1/4 LM146)
Q15 Q16
V CC
Q10
Inverting input Noninverting input
R1 30
Q12 Q14 Q11 Q13 V CC V CC Q9 R set I set SET Q20 Q8 Q3 Q4 Q21 Q7 R2 1k Q18 Q19 R set To other op amps I set SET Output
Q1
Q2
CC 8pF VCC V CC Q6 Q5 Q17
V CC or
V CC
ABSOLUTE MAXIMUM RATINGS
Symbol VCC Vi Vid Supply Voltage Input Voltage - (note 1) Differential Input Voltage Output Short-circuit Duration - (note 2) Ptot Toper Tstg Power Dissipation N/D Suffix Operating Free-air Temperature Range Storage Temperature Range -55 to +125 -65 to +150 Parameter LM146 22 15 30 LM246 22 15 30 Infinite mW 500 -40 to +105 -65 to +150 0 to +70 -65 to +150
o o
LM346 22 15 30
Unit V V V
C C
Notes : 1. For suppl y voltages l ess than 15V, the absolute maximum input vol tage is equal to the supply vol tage. 2. Any of t he amplifi er out puts can be shorted to ground indef initl y ; however more than one should not be simultaneously shorted as the maximum junction temperature wil l be exceeded.
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LM146 - LM246 - LM346
ELECTRICAL CHARACTERISTICS VCC = 15V, Iset = 10A, Tamb = +25oC (unless otherwise specified)
Symbol Vio Parameter Input Offset Voltage (R S 10k) o T amb = 25 C T min. Tamb Tmax. Input Offset Current T amb = 25oC T min. Tamb Tmax. Input Bias Current T amb = 25oC T min. Tamb Tmax. Large Signal Voltage Gain (Vo = 10V, RL = 10k) T amb = 25oC T min. Tamb Tmax. Supply Voltage Rejection Ratio (RS 10k) o T amb = 25 C T min. Tamb Tmax. Supply Current, all Amp, no Load o T amb = 25 C T min. Tamb Tmax. Input Common Mode Voltage Range T amb = 25oC T min. Tamb Tmax. Common Mode Rejection Ratio (RS 10k) o T amb = 25 C T min. Tamb Tmax. Output Short-circuit Current o T amb = 25 C T min. Tamb Tmax. Output Voltage Swing (RL = 10k) o T amb = 25 C T min. Tamb Tmax. Slew Rate (VI = 10V, R L = 10k, CL = 100pF, unity Gain) Input Resistance Input Capacitance Channel Separation (RL = 10k, Vo = 12Vpp) Gain Bandwidth Product (VI = 10 mV, RL = 10k, CL = 100pF f = 100kHz) Total Harmonic Distortion (f = 1kHz, Av = 20dB, RL = 10k CL = 100pF, vo = 2Vpp) Equivalent Input Noise Voltage (f = 1kHz, Rs = 100) 13.5 13.5 80 70 10 4 12 12 0.3 110 LM146 Min. Typ. 0.5 Max. 3 5 20 25 100 100 LM246 - LM346 Min. Typ. 0.5 Max. 5 6 nA 2 2 100 100 nA 30 30 250 250 V/mV 100 50 80 80 1000 50 25 80 80 2 2 13.5 13.5 80 70 30 35 10 4 12 12 0.3 110 mA 20 20 30 35 V 14 14 V/s 0.5 1 2 120 0.5 1 2 120 M pF dB MHz 0.8 1 0.5 1 % 0.015 28 0.015 28 nV Hz 1000 dB 110 110 mA 1 1 2 2 V Unit mV
Iio
Iib
Avd
SVR
ICC
Vicm
CMR
dB
IOS
Vopp
SR RI CI Vo1/Vo2 GBP
THD
en
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LM146 - LM246 - LM346
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LM146 - LM246 - LM346
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LM146 - LM246 - LM346
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LM146 - LM246 - LM346
VOLTAGE FOLLOWER TRANSIENT RESPONSE
TRANSIENT RESPONSE TEST CIRCUIT
OUTPUT (mV)
50 0 -50
I
s et
= 10A
VC C = 1 5V Ta mb = +25 C
eI
C L = 100pF R L = 10k
G
1/4 LM146 RL CL
INPUT (mV)
50 0 -50 0 1 2 TIME ( 3
4
5
s)
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LM146 - LM246 - LM346
PACKAGE MECHANICAL DATA 16 PINS - PLASTIC DIP
Dimensions a1 B b b1 D E e e3 F i L Z
Min. 0.51 0.77
Millimeters Typ.
Max. 1.65
Min. 0.020 0.030
Inches Typ.
Max. 0.065
0.5 0.25 20 8.5 2.54 17.78 7.1 5.1 3.3 1.27
0.020 0.010 0.787 0.335 0.100 0.700 0.280 0.201
DIP16.TBL
0.130 0.050
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PM-DIP16.EPS
LM146 - LM246 - LM346
PACKAGE MECHANICAL DATA 16 PINS - PLASTIC MICROPACKAGE (SO)
Dimensions A a1 a2 b b1 C c1 D E e e3 F G
Min. 0.1
Millimeters Typ.
Max. 1.75 0.2 1.6
Min. 0.004
Inches Typ.
Max. 0.069 0.008 0.063
0.35 0.19 0.5
0.46 0.25
o
0.014 0.007 0.020 45 (typ.)
0.018 0.010
9.8 5.8 1.27 8.89 3.8 4.6
10 6.2
0.386 0.228 0.050 0.350
0.394 0.244
5.3
0.181
0.209
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement 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 SGS-THOMSON Microelectronics. Specification mentioned in this publ ication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics.
ORDER CODE :
(c) 1997 SGS-THOMSON Microelectronics - Printed in Italy - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdo m - U.S.A.
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SO16.TBL
4.0
0.150
0.157
PM-SO16.EPS

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