Description

The INA333AIDGKR is a precision instrumentation amplifier with minimal power and high accuracy. It's perfect for a wide range of portable applications thanks to its adaptable 3-operational amplifier design, small size, and low power.

Any gain between 1 and 1000 can be set with a single external resistor. The G = 1 + (100 k? / RG) gain equation is used in the construction of the INA333AIDGKR.

The INA333AIDGKR has a low offset voltage (25 μV, G ≥ 100), good offset voltage drift (0.1 μV/°C, G ≥ 100), and robust common-mode rejection (100 dB at G ≥ 10). It can run on as little as 1.8 V (±0.9 V) and has a quiescent current of only 50 μA, making it excellent for battery-powered devices. The INA333AIDGKR device has a very low noise density (50 nV/√Hz) that extends down to DC and uses autocalibration techniques to assure outstanding precision throughout an extensive industrial temperature range.

The INA333AIDGKR is available in both 8-pin VSSOP and WSON surface-mount packages, with a temperature range of TA = –40°C to +125°C.

Features

? Low Quiescent Current: 50 μA

? Operating Temperature: –40°C to +125°C

? RFI Filtered Inputs

? 8-Pin VSSOP and 8-Pin WSON Packages

? High CMRR: 100 dB (Minimum), G ≥ 10

? Low Input Bias Current: 200 pA (Maximum)

? Supply Range: 1.8 V to 5.5 V

? Input Voltage: (V–) +0.1 V to (V+) –0.1 V

? Output Range: (V–) +0.05 V to (V+) –0.05 V

? Low Offset Voltage: 25 μV (Maximum), G ≥ 100

? Low Drift: 0.1 μV/°C, G ≥ 100

? Low Noise: 50 nV/√Hz, G ≥ 100

Applications

? Thermocouple Amplifiers

? RTD Sensor Amplifiers

? Data Acquisition

? Medical Instrumentation

? Portable Instrumentation

? Weigh Scales

? Bridge Amplifiers

? ECG Amplifiers

? Pressure Sensors