The AMP02 is the first precision instrumentation amplifier available in an 8-lead package. Gain of the AMP02 is set by a single external resistor and can range from 1 to 10,000. No gain set resistor is required for unity gain. The AMP02 includes an input protection network that allows the inputs to be taken 60 V beyond either supply rail without damaging the device. Laser trimming reduces the input offset voltage to under 100 µV. Output offset voltage is below 4 mV, and gain accuracy is better than 0.5% for a gain of 1000. ADI’s proprietary thin-film resistor process keeps the gain temperature coefficient under 50 ppm/°C. Due to the AMP02’s design, its bandwidth remains very high over a wide range of gain. Slew rate is over 4 V/µs, making the AMP02 ideal for fast data acquisition systems.
The AMP02 is a precision instrumentation amplifier offered in 8‑lead PDIP, CERDIP and 16‑lead SOIC packages. Gain is set by a single external resistor and can be programmed from 1 to 10 000, with unity‑gain operation requiring no resistor. The device includes input over‑voltage protection and a reference pin for offset correction or level shifting.
Key specifications include an input offset voltage of up to 100 µV, output offset below 4 mV, gain accuracy better than 0.5 % at a gain of 1000, a bandwidth of 200 kHz at high gain, and a slew rate exceeding 4 V/µs. It is suited for differential amplification, strain‑gauge, thermocouple, RTD, and data‑acquisition applications.
| Gain Range | 1 to 10,000 |
|---|---|
| Common‑Mode Rejection Ratio (G=1000) | 115 dB min |
| Bandwidth at G=1000 | 200 kHz typ |
| Slew Rate | >4 V/µs |
The AMP02 gain can be set from 1 to 10 000 using a single external resistor.
At a gain of 1000 the device offers at least 115 dB of common‑mode rejection.