Precision instrumentation amplifier conditions low-level transducer signals from sources such as load cells, strain gauges, and pressure transducers. It provides pin-programmable gains of 1, 100, 200, 500, and 1000, with external resistor programming for gains from 1 to 10000. The amplifier operates from ±6 V to ±18 V supplies and delivers ±10 V output swing into a 2 kΩ load. Dynamic performance includes 1 MHz small-signal bandwidth at unity gain, 5 V/µs slew rate, and 15 µs settling to 0.01% for gains up to 200. Device variants cover commercial and military temperature ranges from -25 °C to +85 °C or -55 °C to +125 °C.
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| Amplifier type | Instrumentation amplifier |
| Number of channels | 1 |
| Gain range | 1 to 10000V/V |
| Pin-programmable gains | 1, 100, 200, 500, 1000V/V |
| Gain bandwidth product | 25MHz |
| Small-signal bandwidth at gain of 1 | 1MHz |
| Small-signal bandwidth at gain of 100 | 150kHz |
| Small-signal bandwidth at gain of 500 | 50kHz |
| Slew rate | 5V/µs |
| Settling time to 0.01%, gain 1 to 200 | 15µs |
| Input voltage noise at 1 kHz | 4 typical, referred to inputnV/√Hz |
| Output voltage noise at 1 kHz | 75 typical, referred to outputnV/√Hz |
| Input bias current | ±15 typical to ±50 max, grade dependentnA |
| Differential input impedance | 10^9 typicalΩ |
| Output voltage swing | ±10 with 2 kΩ loadV |
| Common-mode rejection at gain of 500 | 110 min to 130 typical, grade dependentdB |
| Supply voltage range | ±6 to ±18V |
| Quiescent current | 3.5 typical, 5 maxmA |
| Specified temperature range | -25 to +85 for AD624A/B/C; -55 to +125 for AD624S°C |
| Package options | 16-lead ceramic DIP or die, suffix dependent |
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