INA826AIDGKR Precision Instrumentation Amplifier with Low Noise Rail-to-Rail

Product Specification

INA826AIDGKR Precision Instrumentation Amplifier with Low Noise Rail-to-Rail Output Wide Supply Range Low Power High CMRR & Small MSOP-8 Package

Features

• Input common-mode range: Includes V

• Common-mode rejection:– 104dB, min (G = 10)– 100dB, min at 5 kHz (G = 10)

• Power-supply rejection: 100 dB, min (G = 1)

• Lowoffset voltage: 150 µV, max

• Gain drift: 1 ppm/°C (G = 1), 35 ppm/°C (G > 1)

• Noise: 18 nV/√Hz, G ≥ 100

• Bandwidth: 1 MHz (G = 1), 60 kHz (G = 100)

• Inputs protected up to ±40 V

• Rail-to-rail output

• Supply current: 200 µA

• Supply range:– Single supply: 3 V to 36 V– Dual supply: ±1.5 V to ±18 V

• Specified temperature range:–40°C to +125°C

• Packages: 8-pin VSSOP, SOIC, and WSON

Applications

• Analog input module

• Flow transmitter

• Battery test

• LCDtest

• Electrocardiogram (ECG)

• Surgical equipment

• Process analytics (pH, gas, concentration, force and humidity)

• Circuit breaker (ACB, MCCB, VCB)

Description

The INA826 is a cost-effective instrumentation amplifier that offers extremely low power consumption and operates over a very wide single-supply or dual supply range. A single external resistor sets any gain from 1 to 1000. The device offers excellent stability over temperature, even at G > 1, as a result of the low gain drift of only 35 ppm/°C (maximum).

The INA826 is optimized to provide excellent common-mode rejection ratio of over 100 dB (G = 10) over frequencies up to 5 kHz. At G = 1, the common mode rejection ratio exceeds 84 dB across the full input common-mode range, from the negative supply all the way up to 1 V of the positive supply. Using a rail-to-rail output, the INA826 is a great choice for low-voltage operation from a 3-V single supply, as well as dual supplies up to ±18 V.

Additional circuitry protects the inputs against overvoltage of up to ±40 V beyond the power supplies by limiting the input currents to less than 8 mA.

The INA826 is available in 8-pin SOIC, VSSOP, and tiny 3-mm × 3-mm WSON surface-mount packages. All versions are specified for the–40°C to +125°C temperature range.

INFORMATION

Drawing

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