INA317 Instrumentation Amplifier

Texas Instruments INA317 Instrumentation Amplifier is a low-power, precision instrumentation amplifier offering excellent accuracy. The versatile 3-operational amplifier design, small size, and low power make the INA317 usable in many portable applications. A single external resistor sets any gain from 1 to 1000, as defined by the industry-standard gain equation: G = 1 + (100kΩ / RG). The instrumentation amplifier provides low offset voltage (75µV, G ≥ 100), excellent offset voltage drift (0.3µV/°C, G ≥ 100), and high common-mode rejection (100dB at G ≥ 10). The INA317 operates with power supplies as low as 1.8V (±0.9V) and a quiescent current of 50µA, making the device usable in battery-operated systems. The Texas Instruments INA317 offers low noise density (50nV/√Hz) that extends down to DC using auto-calibration techniques to ensure precision over the extended industrial temperature range.