AD8231ACPZ-WP

AD8231 is a low drift, rail-to-rail, instrumentation amplifier with software-programmable gains of 1, 2, 4, 8, 16, 32, 64, or 128. The gains are programmed via digital logic or pin strapping. It is ideal for applications that require precision performance over a wide temperature range, such as industrial temperature sensing and data logging. It also includes an uncommitted op-amp that can be used for additional gain, differential signal driving, or filtering. Like the in-amp, the op-amp has an auto-zero architecture, rail-to-rail input and rail-to-rail output. It includes a shutdown feature that reduces current to a maximum of 1µA. In shutdown, both amplifiers also have a high output impedance, which allows easy multiplexing of multiple amplifiers without additional switches. It is used in applications such as pressure and strain transducers, thermocouples and RTDs, programmable instrumentation, industrial controls, weigh scales, automotive controls.

• Input offset voltage is 4µV typical at (VS = 5V, VREF = 2.5V, G = 1, RL = 10Kohm)
• Gain error (G = 1) is 0.05% maximum at (VS = 5V, VREF = 2.5V, G = 1, RL = 10Kohm)
• Gain drift (G = 1 to 32) is 3ppm/°C typical at (VS = 5V, VREF = 2.5V, G = 1, RL = 10Kohm)
• CMRR (G = 1) is 80dB typical at (VS = 5V, VREF = 2.5V, G = 1, RL = 10Kohm)
• Input voltage noise is 0.7µV p-p typical at (f = 0.1Hz to 10Hz, TA = 25°C)
• Bandwidth (G = 1) is 2.7MHz typical at (VS = 5V, VREF = 2.5V, G = 1, RL = 10Kohm)
• Slew rate is 0.5V/µs typical at (VS = 5V, VREF = 2.5V, G = 1, RL = 10Kohm)
• Rail-to-rail output, shutdown/multiplex, extra opamp
• Single-supply voltage range from 3V to 5V, dual-supply voltage range from ±1.5V to ±2.5V
• Operating temperature is -40°C to +125°C, package style is 16-lead LFCSP

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party