INA149-EP Series

Enhanced Product High Common Mode Voltage Difference Amplifier

Catalog

Enhanced Product High Common Mode Voltage Difference Amplifier

Part	Channels per IC	Utilized IC / Part	Current - Output / Channel	Board Type	Current - Supply (Main IC)	Slew Rate	Voltage - Supply, Single/Dual (±) [Min]	Voltage - Supply, Single/Dual (±) [Max]	Amplifier Type	Supplied Contents	Mounting Type	Voltage - Supply Span (Min) [Min]	Current - Supply	Package / Case	Package / Case [y]	Package / Case [x]	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Input Offset	Voltage - Supply Span (Max) [Max]	Supplier Device Package	Number of Circuits
Texas Instruments INA149EVM	1 - Single	INA149	25 mA	Fully Populated	810 µA	5 V/çs	2 V 4 V	18 V 36 V	Differential	Board(s)
Texas Instruments INA149AID			25 mA			5 V/çs			Differential		Surface Mount	4 V	810 µA	8-SOIC	3.9 mm	0.154 in	125 °C	-40 °C	350 µV	36 V	8-SOIC	1
Texas Instruments INA149AMDREP			25 mA			5 V/çs			Differential		Surface Mount	4 V	810 µA	8-SOIC	3.9 mm	0.154 in	125 °C	-55 °C	350 µV	36 V	8-SOIC	1
Texas Instruments INA149AIDR			25 mA			5 V/çs			Differential		Surface Mount	4 V	810 µA	8-SOIC	3.9 mm	0.154 in	125 °C	-40 °C	350 µV	36 V	8-SOIC	1

Catalog

Enhanced Product High Common Mode Voltage Difference Amplifier

Key Features

• Common-Mode Voltage Range: ±275 VMinimum CMRR: 84 dB from –55°C to +125°CDC Specifications:Maximum Offset Voltage: 3500 µVMaximum Gain Error: 0.047%Maximum Gain Nonlinearity: 0.001% FSR at 25°CAC Performance:Bandwidth: 500 kHzTypical Slew Rate: 5 V/µsWide Supply Range: ±2.0 V to ±18 VMaximum Quiescent Current: 1100 µAOutput Swing on ±15-V Supplies: ±13.5 VInput Protection:Common-Mode: ±500 VDifferential: ±500 VCommon-Mode Voltage Range: ±275 VMinimum CMRR: 84 dB from –55°C to +125°CDC Specifications:Maximum Offset Voltage: 3500 µVMaximum Gain Error: 0.047%Maximum Gain Nonlinearity: 0.001% FSR at 25°CAC Performance:Bandwidth: 500 kHzTypical Slew Rate: 5 V/µsWide Supply Range: ±2.0 V to ±18 VMaximum Quiescent Current: 1100 µAOutput Swing on ±15-V Supplies: ±13.5 VInput Protection:Common-Mode: ±500 VDifferential: ±500 V

Description

The INA149 is a precision unity-gain difference amplifier with a very high input common-mode voltage range. It is a single, monolithic device that consists of a precision op amp and an integrated thin-film resistor network. The INA149 can accurately measure small differential voltages in the presence of common-mode signals up to ±275 V. The INA149 inputs are protected from momentary common-mode or differential overloads of up to500 V. In many applications, where galvanic isolation in not required, the INA149 can replace isolation amplifiers. This ability can eliminate costly isolated input side power supplies and the associated ripple, noise, and quiescent current. The excellent 0.0005% nonlinearity and 500-kHz bandwidth of the INA149 are superior to those of conventional isolation amplifiers. The INA149 is pin-compatible with the INA117 and INA148 type high common-mode voltage amplifiers and offers improved performance over both devices. The INA149 is available in the SOIC-8 package with operation specified over the military temperature range of –55°C to +125°C. The INA149 is a precision unity-gain difference amplifier with a very high input common-mode voltage range. It is a single, monolithic device that consists of a precision op amp and an integrated thin-film resistor network. The INA149 can accurately measure small differential voltages in the presence of common-mode signals up to ±275 V. The INA149 inputs are protected from momentary common-mode or differential overloads of up to500 V. In many applications, where galvanic isolation in not required, the INA149 can replace isolation amplifiers. This ability can eliminate costly isolated input side power supplies and the associated ripple, noise, and quiescent current. The excellent 0.0005% nonlinearity and 500-kHz bandwidth of the INA149 are superior to those of conventional isolation amplifiers. The INA149 is pin-compatible with the INA117 and INA148 type high common-mode voltage amplifiers and offers improved performance over both devices. The INA149 is available in the SOIC-8 package with operation specified over the military temperature range of –55°C to +125°C.