Product Summary

The LF347M is a low cost, high speed quad JFET input operational amplifier with an internally trimmed input offset voltage (BI-FET II technology). The device 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 LF347M is pin compatible with the standard LM148. This feature allows designers to immediately upgrade the overall performance of existing LF148 and LM124 designs. The LF347M 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 LF347M has low noise and offset voltage drift.

Parametrics

LF347M absolute maximum ratings: (1)Supply Voltage: ±22V; (2)Differential Input Voltage: ±38V; (3)Input Voltage Range: ±19V; (4)Output Short Circuit: Continuous; (5)Power Dissipation: 900 mW; (6)Tj max: 150℃; (7)IOS Input Offset Current Tj=25℃: 25 to 100pA.

Features

LF347M features: (1)Internally trimmed offset voltage: 5 mV max; (2)Low input bias current: 50 pA; (3)Low input noise current:; (4)Wide gaibandwidth: 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 distortioAV=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

LF347M pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LF347M
LF347M
National Semiconductor (TI)
Operational Amplifiers - Op Amps
Data Sheet
0-440: $0.82
440-550: $0.71
550-1045: $0.59
1045-2530: $0.55
LF347M/NOPB
LF347M/NOPB
National Semiconductor (TI)
Operational Amplifiers - Op Amps WIDE BW QUAD JFET INPUT OP AMP
Data Sheet
0-1: $1.30
1-25: $1.05
25-100: $0.94
100-250: $0.84
LF347MX/NOPB
LF347MX/NOPB
National Semiconductor (TI)
Operational Amplifiers - Op Amps WIDE BW QUAD JFET INPUT OP AMP
Data Sheet
0-1: $1.58
1-25: $1.27
25-100: $1.15
100-250: $1.02
LF347MX
LF347MX
National Semiconductor (TI)
Operational Amplifiers - Op Amps
Data Sheet
0-2500: $0.55
2500-5000: $0.53
5000-10000: $0.51