The AD624 is a high precision, low noise, instrumentation amplifier designed primarily for use with low level transducers, including load cells, strain gauges and pressure transducers. An outstanding combination of low noise, high gain accuracy, low gain temperature coefficient and high linearity make the AD624 ideal for use in high resolution data acquisition systems.
The AD624 is a precision instrumentation amplifier designed for low‑level transducers such as load cells, strain gauges and pressure transducers. It offers pin‑programmable gains of 1, 100, 200, 500 and 1000 without external components, and additional gains can be set with external jumpers or a single resistor for any gain between 1 and 10 000.
Key specifications include a gain‑bandwidth product of 25 MHz, a slew rate of 5 V/µs, input offset voltage of 25 pV (max) with a drift of 0.25 µV/°C, CMRR of 130 dB at high gain, and low noise performance of 0.2 pV p‑p from 0.1 Hz to 10 Hz. The device is supplied in a 16‑lead ceramic DIP package and operates from a +6 V to +18 V supply range.
| Low Noise | 0.2 pV p‑p (0.1 Hz‑10 Hz) |
|---|---|
| Gain Bandwidth Product | 25 MHz |
| Input Offset Voltage | 25 pV max |
| CMRR | 130 dB min (G = 500‑1000) |
The AD624 provides pin‑programmable gains from 1 to 1000, and an external resistor can be used to set any gain between 1 and 10 000.
The AD624 operates with a supply voltage range of +6 V to +18 V.
The device is offered in a 16‑lead ceramic DIP (D‑16) package.