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LF347, B LF351 JFET Input Operational Amplifiers
These low cost JFET input operational amplifiers combine two state–of–the–art analog technologies on a single monolithic integrated circuit. Each internally compensated operational amplifier has well matched high voltage JFET input devices for low input offset voltage. The JFET technology provides wide bandwidthsand fast slew rates with low input bias currents, input offset currents, and supply currents. These devices are available in single, dual and quad operational amplifiers which are pin–compatible with the industry standard MC1741, MC1458, and the MC3403/LM324 bipolar devices. • Input Offset Voltage of 5.0 mV Max (LF347B)

LF353

FAMILY OF JFET OPERATIONAL AMPLIFIERS

N SUFFIX PLASTIC PACKAGECASE 626
8 1

• • • • • • •

Low Input Bias Current: 50 pA Low Input Noise Voltage: 16 nV/ Hz Wide Gain Bandwidth: 4.0 MHz High Slew Rate: 13V/µs Low Supply Current: 1.8 mA per Amplifier High Input Impedance: 1012 Ω High Common Mode and Supply Voltage Rejection Ratios: 100 dB

8 1

D SUFFIX PLASTIC PACKAGE CASE 751 (SO–8)

PIN CONNECTIONS
Offset Null 1 Invt Input 2 Noninvt Input 3 VEE4 Output A 1 Inputs A 2 3 8 NC

– +

7 VCC 6 Output 5 Offset Null

LF351 (Top View)

– +
A B

8 VCC 7 Output B

– +

6 5

LF353 (Top View)

MAXIMUM RATINGS
Rating Supply Voltage Differential Input Voltage Input Voltage Range (Note 1) Output Short Circuit Duration (Note 2) Power Dissipation at TA = +25°C Derate above TA =+25°C Operating Ambient Temperature Range OperatingJunction Temperature Range Storage Temperature Range Symbol VCC VEE VID VIDR tSC PD 1/θJA TA TJ Tstg Value +18 –18 ±30 ±15 Continuous 900 10 0 to +70 115 – 65 to +150 mW mW/°C °C °C °C Unit V V V

VEE 4

Inputs B

N SUFFIX PLASTIC PACKAGE CASE 646
14 1

PIN CONNECTIONS
Out 1 1 2 Inputs 1 3 14 Out 4

– + 1 4

– +

13 Inputs 4 12 11 VEE

VCC 4 5 Inputs 2 6 Out 2 7

+ – 2 3

+ –

10Inputs 3 9 8 Out 3

NOTES: 1. Unless otherwise specified, the absolute maximum negative input voltage is limited to the negative power supply. 2. Any amplifier output can be shorted to ground indefinitely. However, if more than one amplifier output is shorted simultaneously, maximum junction temperature rating may be exceeded.

(Top View)

ORDERING INFORMATION
Device LF351D LF351N LF353DLF353N LF347BN LF347N Operating Function Temperature Range Single Single Dual Dual Quad Quad TA = 0° to +70°C Package SO–8 Plastic DIP SO–8 Plastic DIP Plastic DIP Plastic DIP Rev 0

© Motorola, Inc. 1996

MOTOROLA ANALOG IC DEVICE DATA

1

LF347, B LF351 LF353
ELECTRICAL CHARACTERISTICS (VCC = +15 VEE = –15 V, TA = 25°C, unless otherwise noted.)
LF347B Characteristic Ch i i Input OffsetVoltage (RS ≤ 10 k, VCM = 0) TA = +25°C 0°C ≤ TA ≤ +70°C Avg. Temperature Coefficient of Input Offset Voltage RS ≤ 10 k, 0°C ≤ TA ≤ +70°C Input Offset Current (VCM = 0, Note 3) TA = +25°C 0°C ≤ TA ≤ +70°C Input Bias Current (VCM = 0, Note 3) TA = +25°C 0°C ≤ TA ≤ +70°C Input Resistance Common Mode Input Voltage Range Large–Signal Voltage Gain (VO = ±10 V, RL = 2.0 k) TA = +25°C 0°C ≤ TA ≤ +70°COutput Voltage Swing (RL = 10 k) Common Mode Rejection (RS ≤ 10 k) Supply Voltage Rejection (RS ≤ 10 k) Supply Current LF347 LF351 LF353 Short Circuit Current Slew Rate (AV = +1) Gain–Bandwidth Product Equivalent Input Noise Voltage (RS = 100 Ω, f = 1000 Hz) Equivalent Input Noise Current (f = 1000 Hz) Channel Separation (LF347, LF353) 1.0 Hz ≤ f ≤ 20 kHz (Input Referred) Symbol S b l VIO – –∆VIO/∆T – IIO – – IIB – – ri VICR AVOL 50 25 VO CMR PSRR ID – – – ISC SR BWp en in – – – – – – – 7.2 – – 25 13 4.0 24 0.01 –120 11 – – – – – – – – – – – – – – – – – 7.2 1.8 3.6 25 13 4.0 24 0.01 –120 11 3.4 6.5 – – – – – – mA V/µs MHz nV/ √ Hz pA/ √ Hz dB ±12 80 80 100 – ±14 100 100 – – – – – 25 15 ±12 70 70 100 – ±14 100 100 – – – – – V dB dB mA – ±11 50 – 1012 +15 –12 200 8.0 – – – – – ±11 50 –...
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