Product Summary

The LF347N is a low cost, high speed quad JFET input operational amplifier with an internally trimmed input offset voltage. The LF347N 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 LF347N is pin compatible with the standard LM148. This feature allows designers to immediately upgrade the overall performance of existing LF148 and LM124 designs.

Parametrics

LF347N 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℃; (7)θjA: 75℃/W; (8)Surface Mount Wide (WM) Operating Temperature Range: 85℃/W; (9)Storage Temperature Range: -65℃ to 150℃; (10)Lead Temperature (Soldering, 10 sec.): 260°C; (11)Soldering Information Dual-In-Line Package Soldering (10 seconds): 260℃.

Features

LF347N 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: 13 V/μs; (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

LF347N pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LF347N
LF347N
STMicroelectronics
Operational Amplifiers - Op Amps Quad Wideband JFET
Data Sheet
0-1: $0.47
1-10: $0.42
10-100: $0.32
100-250: $0.28
LF347N/NOPB
LF347N/NOPB
National Semiconductor (TI)
Operational Amplifiers - Op Amps WIDE BW QUAD JFET INPUT OP AMP
Data Sheet
0-1: $1.12
1-25: $0.90
25-100: $0.81
100-250: $0.72
LF347NE4
LF347NE4
Texas Instruments
Operational Amplifiers - Op Amps Quad JFET-input
Data Sheet
0-1: $0.49
1-25: $0.38
25-100: $0.34
100-250: $0.29
LF347N/PB
LF347N/PB
National Semiconductor (TI)
Operational Amplifiers - Op Amps QUAD BI-FET II OP AMP
Data Sheet
0-500: $0.68
500-1000: $0.52
1000-2500: $0.49
2500-5000: $0.47