Product Summary

The LF347BN is a low cost, high speed quad JFET input operational amplifier with an internally trimmed input offset voltage (BI-FET II. technology). The LF347BN requires a low supply current and yet maintains a large gain bandwidth product and a fast slew rate. In addition, well matched high voltage JFET input devices provide very low input bias and offset currents. The LF347BN is pin compatible with the standard LM148. This feature allows designers to immediately upgrade the overall performance of existing LF148 and LM124 designs. The LF347BN may be used in applications such as high speed integrators, fast D/A converters, sample-and-hold circuits and many other circuits requiring low input offset voltage, low input bias current, high input impedance, high slew rate and wide bandwidth. The LF347BN has low noise and offset voltage drift.

Parametrics

LF347BN absolute maximum ratings: (1)Supply Voltage: ±18V; (2)Differential Input Voltage: ±30V; (3)Input Voltage Range: ±15V; (4)Output Short Circuit Duration: Continuous; (5)Power Dissipation: 1000 mW; (6)Tj max: 150°C; (7)θjA: Ceramic DIP (J) Package 70℃/W, Plastic DIP (N) Package 75℃/W, Surface Mount Narrow (M) 100℃/W; (8)Surface Mount Wide (WM): 85℃/W; (9)Storage Temperature Range: -65℃ to 150℃; (10)Lead Temperature (Soldering, 10 sec.): 260℃; (11)Dual-In-Line Package Soldering (10 seconds): 260℃; (12)Small Outline Package Vapor Phase (60 seconds): 215℃; (13)Infrared (15 seconds): 220℃; (14)ESD Tolerance: 900V.

Features

LF347BN features: (1)Internally trimmed offset voltage: 5 mV max; (2)Low input bias current: 50 pA; (3)Low input noise current; (4)Wide gain bandwidth: 4 MHz; (5)High slew rate; (6)Low supply current: 7.2 mA; (7)High input impedance: 1012W; (8)Low total harmonic distortion AV=10,: <0.02% RL=10k, VO=20 Vp-p, BW=20 Hz-20 kHz; (9)Low 1/f noise corner: 50 Hz; (10)Fast settling time to 0.01%: 2μs.

Diagrams

LF347BN block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LF347BN
LF347BN
Texas Instruments
Operational Amplifiers - Op Amps Wide-Bandwidth JFET-Inp Quad
Data Sheet
0-1: $0.43
1-25: $0.38
25-100: $0.30
100-250: $0.26
LF347BN/NOPB
LF347BN/NOPB
National Semiconductor (TI)
Operational Amplifiers - Op Amps WIDE BW QUAD JFET INPUT OP AMP
Data Sheet
0-1: $1.24
1-25: $1.00
25-100: $0.90
100-250: $0.80
LF347BNE4
LF347BNE4
Texas Instruments
Operational Amplifiers - Op Amps Wide-Bandwidth JFET-Inp Quad
Data Sheet
0-1: $0.49
1-25: $0.38
25-100: $0.34
100-250: $0.26
LF347BN/PB
LF347BN/PB
National Semiconductor (TI)
Operational Amplifiers - Op Amps QUAD BI-FET II OP AMP 5MV VOS
Data Sheet
0-450: $0.88
450-500: $0.76
500-1000: $0.58
1000-2500: $0.54