INA819 Series

Low power (350-µA), precision instrumentation amp with ±60-V overvoltage protection (gain pins 2, 3)

Catalog

Low power (350-µA), precision instrumentation amp with ±60-V overvoltage protection (gain pins 2, 3)

Part	-3db Bandwidth	Voltage - Input Offset	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Voltage - Supply Span (Min) [Min]	Supplier Device Package	Current - Output / Channel	Amplifier Type	Current - Input Bias	Number of Circuits	Slew Rate	Voltage - Supply Span (Max) [Max]	Package / Case [y]	Package / Case [x]	Package / Case [custom]	Package / Case
Texas Instruments INA819IDRGT	2 MHz	10 µV	Surface Mount	-40 °C	125 °C	8-WFDFN Exposed Pad	4.5 V	8-SON (3x3)	20 mA	Instrumentation	150 pA	1	0.9 V/µs	36 V
Texas Instruments INA819ID	2 MHz	10 µV	Surface Mount	-40 °C	125 °C	8-SOIC	4.5 V	8-SOIC	20 mA	Instrumentation	150 pA	1	0.9 V/µs	36 V	3.9 mm	0.154 in
Texas Instruments INA819IDGKT	2 MHz	40 µV	Surface Mount	-40 °C	125 °C	8-MSOP 8-TSSOP	4.5 V		20 mA	Instrumentation	150 pA	1	0.9 V/µs	36 V			0.118 in	3 mm
Texas Instruments INA819IDR	2 MHz	10 µV	Surface Mount	-40 °C	125 °C	8-SOIC	4.5 V	8-SOIC	20 mA	Instrumentation	150 pA	1	0.9 V/µs	36 V	3.9 mm	0.154 in
Texas Instruments INA819IDRGR	2 MHz	10 µV	Surface Mount	-40 °C	125 °C	8-WFDFN Exposed Pad	4.5 V	8-SON (3x3)	20 mA	Instrumentation	150 pA	1	0.9 V/µs	36 V
Texas Instruments INA819IDGKR	2 MHz	40 µV	Surface Mount	-40 °C	125 °C	8-MSOP 8-TSSOP	4.5 V		20 mA	Instrumentation	150 pA	1	0.9 V/µs	36 V			0.118 in	3 mm

Catalog

Low power (350-µA), precision instrumentation amp with ±60-V overvoltage protection (gain pins 2, 3)

Key Features

• Low offset voltage: 10 µV (typ), 35 µV (max)Gain drift: 5 ppm/°C (G = 1), 35 ppm/°C (G > 1) (max)Noise: 8 nV/√HzBandwidth: 2 MHz (G = 1), 270 kHz (G = 100)Stable with 1-nF capacitive loadsInputs protected up to ±60 VCommon-mode rejection: 110 dB, G = 10 (min)Power supply rejection: 110 dB, G = 1 (min)Supply current: 385 µA (max)Supply range:Single supply: 4.5 V to 36 VDual supply: ±2.25 V to ±18 VSpecified temperature range: –40°C to +125°CPackages: 8-pin SOIC, VSSOP, WSONLow offset voltage: 10 µV (typ), 35 µV (max)Gain drift: 5 ppm/°C (G = 1), 35 ppm/°C (G > 1) (max)Noise: 8 nV/√HzBandwidth: 2 MHz (G = 1), 270 kHz (G = 100)Stable with 1-nF capacitive loadsInputs protected up to ±60 VCommon-mode rejection: 110 dB, G = 10 (min)Power supply rejection: 110 dB, G = 1 (min)Supply current: 385 µA (max)Supply range:Single supply: 4.5 V to 36 VDual supply: ±2.25 V to ±18 VSpecified temperature range: –40°C to +125°CPackages: 8-pin SOIC, VSSOP, WSON

Description

The INA819 is a high-precision instrumentation amplifier that offers 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 10,000. The device offers high precision as a result of super-beta input transistors, which provide exceptionally low input offset voltage, offset voltage drift, input bias current, input voltage, and current noise. Additional circuitry protects the inputs against overvoltage up to ±60 V. The INA819 is optimized to provide a high common-mode rejection ratio. At G = 1, the common-mode rejection ratio exceeds 90 dB across the full input common-mode range. The device is designed for low-voltage operation from a 4.5-V single supply, as well as dual supplies up to ±18 V. The INA819 is available in 8-pin SOIC, VSSOP, and WSON packages, and is specified over the –40°C to +125°C temperature range. The INA819 is a high-precision instrumentation amplifier that offers 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 10,000. The device offers high precision as a result of super-beta input transistors, which provide exceptionally low input offset voltage, offset voltage drift, input bias current, input voltage, and current noise. Additional circuitry protects the inputs against overvoltage up to ±60 V. The INA819 is optimized to provide a high common-mode rejection ratio. At G = 1, the common-mode rejection ratio exceeds 90 dB across the full input common-mode range. The device is designed for low-voltage operation from a 4.5-V single supply, as well as dual supplies up to ±18 V. The INA819 is available in 8-pin SOIC, VSSOP, and WSON packages, and is specified over the –40°C to +125°C temperature range.