The LF347 and LF347B devices are low-cost, high-speed, JFET-input operational amplifiers. They require low supply current yet maintain a large gain-bandwidth product and a fast slew rate. In addition, their matched high-voltage JFET inputs provide very low input bias and offset current.
The LF347 and LF347B can be used in applications such as high-speed integrators, digital-to-analog converters, sample-and-hold circuits, and many other circuits.
The LF347 and LF347B devices are characterized for operation from 0°C to 70°C.
| Number of channels | 4 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) | 36 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) | 7 |
| Rail-to-rail | In to V+ |
| GBW (typ) (MHz) | 3 |
| Slew rate (typ) (V/µs) | 13 |
| Vos (offset voltage at 25°C) (max) (mV) | 5 |
| Iq per channel (typ) (mA) | 2 |
| Vn at 1 kHz (typ) (nV√Hz) | 18 |
| Rating | Catalog |
| Operating temperature range (°C) | 0 to 70 |
| Offset drift (typ) (µV/°C) | 10 |
| Input bias current (max) (pA) | 200 |
| CMRR (typ) (dB) | 100 |
| Iout (typ) (A) | 0.031 |
| Architecture | FET |
| Input common mode headroom (to negative supply) (typ) (V) | 3 |
| Input common mode headroom (to positive supply) (typ) (V) | 0 |
| Output swing headroom (to negative supply) (typ) (V) | 1.5 |
| Output swing headroom (to positive supply) (typ) (V) | -1.5 |
| PDIP (N) | 14 | 181.42 mm² 19.3 x 9.4 |
| SOIC (D) | 14 | 51.9 mm² 8.65 x 6 |
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