The EL8170 and EL8173 are micropower instrumentation amplifiers optimized for operation at 2.9V to 5V single supplies. Inputs and outputs can operate rail-to-rail.
The EL8170 and EL8173 are micropower instrumentation amplifiers optimized for 2.9 V to 5 V single‑supply operation. They feature rail‑to‑rail input and output, bipolar input devices for low offset and 1/f noise, and a feedback divider for gain control.
Key specifications include a maximum supply current of 78 µA, offset voltages as low as 250 µV (EL8170) or 1000 µV (EL8173), 500 pA input bias current, 0.5 V/µs slew rate, 0.2 % gain error, and up to +29 mA output source/sink current. The devices can be power‑down to about 2.9 µA, and offer bandwidths up to 396 kHz at a gain of 10.
| Supply Voltage Range | 2.9 V to 5 V |
|---|---|
| Maximum Supply Current | 78 µA |
| Maximum Offset Voltage | 250 µV (EL8170), 1000 µV (EL8173) |
| Input Bias Current | 500 pA |
| Slew Rate | 0.5 V/µs |
| Gain Error | 0.2 % |
| Output Load Current | +29 mA |
| Bandwidth (G=10) | 396 kHz (-3 dB) |
| Power‑Down Supply Current | ≈2.9 µA |
The maximum supply current is 78 µA.
Pull the active‑low ENABLE pin above 2 V to reduce supply current to about 2.9 µA and place the output in a high‑impedance state.
The EL8170 has a maximum input offset voltage of 250 µV.
They are designed for single‑supply operation from 2.9 V to 5 V.