LM146 STMICROELECTRONICS | Alldatasheet

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Technical content

QUAD BIPOLAR OPERATIONAL AMPLIFIERS .PROGRAMMABLE ELECTRICAL CHARAC- TERISTICS .BATTERY POWERED OPERATION .LOW SUPPLY CURRENT (250 µA/amplifier) .GAIN-BANDWIDTH PRODUCT : 1MHz .LARGE DC VOLTAGE GAIN : 120dB .LOW NOISE VOLTAGE : 28nV/VHz .WIDE POWER SUPPLY RANGE : ±1.5V to ±22V .CLASSE AB OUTPUT STAGE. NO CROSS- OVER DISTORTION .OVERLOAD PROTECTION FOR INPUTS AND OUTPUTS

DESCRIPTION

The LM346 consists of four independent, high gain, internally compensated, low power programmable amplifiers. Two external resistors (R set) 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 simi- lar 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 (I set=1 0µA) Gain-bandwidthproduct = 1MHz (Iset=1 0µA) Slew rate = 0.5V/µs( Iset=1 0µA) Input bias current≈30 nA (Iset=1 0µA) Iset= current into pin 8 and pin 9 (see schematic diagram) Iset= VCC + − VCC − − 0.6V R set Output1 Invertinginput 1 Non-invertinginput 1 Non-invertinginput 2 Invertinginput 2 Output2 Set Output4 Invertinginput 4 Non-invertinginput 4 VCC Non-invertinginput 3 Invertinginput 3 Output 3 Set VCC PIN CONNECTIONS (top view) ORDER CODES Part Number Temperature Range Package ND LM146 –55 oC, +125oC •• LM246 –40 oC, +105oC •• LM346 0 oC, +70oC •• Example :LM246N N DIP16 (Plastic Package) D SO16 (Plastic Micropackage) LM146 LM246 - LM346

Notes : 1. For supply voltages less than± 15V, the absolute maximum input voltage is equal to the supply voltage. 2. Any of the amplifier outputs can be shorted to ground indefinitly ; however more than one should not be simultaneously shorted as the maximum junction temperature will be exceeded. ABSOLUTE MAXIMUM RATINGS Symbol Parameter LM146 LM246 LM346 Unit VCC Supply Voltage ±22 ±22 ±22 V Vi Input Voltage - (note 1) ±15 ±15 ±15 V Vid Differential Input Voltage ±30 ±30 ±30 V Output Short-circuit Duration - (note 2) Infinite Ptot Power Dissipation N/D Suffix 500 mW Toper Operating Free-air Temperature Range –55 to +125 –40 to +105 0 to +70 oC Tstg Storage Temperature Range –65 to +150 –65 to +150 –65 to +150 oC V CC V CC V CC or Q18 Q19 To other op amps V CC V CC Output R set R set Iset Iset SET SET 30Ω Q12 Q10 Q11 Q16 Q15 Q14 Q138pF C C Non- inverting input Q20 1kΩQ7Q21 Q4Q3 Q17 V CCVCC Q1 Q2 Inverting input SCHEMATIC DIAGRAM (1/4 LM146) LM146 - LM246 - LM346

ELECTRICAL CHARACTERISTICS

VCC = ±15V, Iset=1 0µA, Tamb = +25oC (unless otherwise specified) Symbol Parameter LM146 LM246 - LM346 Unit Vio Input Offset Voltage (RS ≤ 10kΩ ) Tamb =2 5oC Tmin.≤ Tamb ≤ Tmax. 0.5 3 0.5 5 mV Iio Input Offset Current Tamb =2 5oC Tmin.≤ Tamb ≤ Tmax. 22 0 2 100 100 nA Iib Input Bias Current Tamb =2 5oC Tmin.≤ Tamb ≤ Tmax. 30 100 100 30 250 250 nA Avd Large Signal Voltage Gain (Vo = ±10V, RL = 10kΩ ) Tamb =2 5oC Tmin.≤ Tamb ≤ Tmax. 100 1000 50 1000 V/mV SVR Supply Voltage Rejection Ratio (RS ≤ 10kΩ ) Tamb =2 5oC Tmin.≤ Tamb ≤ Tmax. 110 80 110 dB ICC Supply Current, all Amp, no Load Tamb =2 5oC Tmin.≤ Tamb ≤ Tmax. mA Vicm Input Common Mode Voltage Range Tamb =2 5oC Tmin.≤ Tamb ≤ Tmax. ±13.5 ±13.5 ±13.5 ±13.5 V CMR Common Mode Rejection Ratio (R S ≤ 10kΩ ) Tamb =2 5oC Tmin.≤ Tamb ≤ Tmax. 110 80 110 dB IOS Output Short-circuit Current Tamb =2 5oC Tmin.≤ Tamb ≤ Tmax. 20 30 20 30 mA ± Vopp Output Voltage Swing (RL = 10kΩ ) Tamb =2 5oC Tmin.≤ Tamb ≤ Tmax. 14 12 V SR Slew Rate (V I = ±10V, RL = 10kΩ ,C L = 100pF, unity Gain) 0.3 0.5 0.3 0.5 V/µs R I Input Resistance 1 1 M Ω C I Input Capacitance 2 2 pF Vo1/Vo2 Channel Separation (RL = 10kΩ ,V o = 12Vpp) 120 120 dB GBP Gain Bandwidth Product (VI = 10 mV, RL = 10kΩ ,C L = 100pF f = 100kHz) 0.8 1 0.5 1 MHz THD Total Harmonic Distortion (f = 1kHz, Av = 20dB, RL = 10kΩ C L = 100pF, vo =2 Vpp) 0.015 0.015 en Equivalent Input Noise Voltage (f = 1kHz, Rs = 100Ω ) 28 28 nV √Hz LM146 - LM246 - LM346

-50 -50 INPUT (mV) OUTPUT (mV) 0 1 2345 TIME ( µs) =1 0µAIset =+ 2 5°CTamb VCC =1 5 V = 10kΩR L = 100pFC L VOLTAGE FOLLOWER TRANSIENT RESPONSE LM146GeI C LLR TRANSIENT RESPONSE TEST CI RCUIT LM146 - LM246 - LM346

PM-DIP16.EPS PACKAGE MECHANICAL DATA

16 PINS - PLASTIC DIP

Dimensions Millimeters Inches a1 0.51 0.020 B 0.77 1.65 0.030 0.065 b 0.5 0.020 b1 0.25 0.010 D 20 0.787 E 8.5 0.335 e 2.54 0.100 e3 17.78 0.700 F 7.1 0.280 i 5.1 0.201 L 3.3 0.130 Z 1.27 0.050 DIP16.TBL LM146 - LM246 - LM346

PM-SO16.EPS PACKAGE MECHANICAL DATA

16 PINS - PLASTIC MICROPACKAGE (SO)

Dimensions Millimeters Inches A 1.75 0.069 a1 0.1 0.2 0.004 0.008 a2 1.6 0.063 b 0.35 0.46 0.014 0.018 b1 0.19 0.25 0.007 0.010 C 0.5 0.020 c1 45 o (typ.) D 9.8 10 0.386 0.394 E 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 8.89 0.350 F 3.8 4.0 0.150 0.157 G 4.6 5.3 0.181 0.209 SO16.TBL Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsi- bility 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 publication 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.  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. ORDER CODE : LM146 - LM246 - LM346