INA149AIDR

FEATURES

• Common-Mode Voltage Range: ±275 V • Minimum CMRR: 90 dB from –40°C to +125°C • DC Specifications: – Maximum Offset Voltage: 1100 μV – Maximum Offset Voltage Drift: 15 μV/°C – Maximum Gain Error: 0.02%

– Maximum Gain Error Drift: 10 ppm/°C – Maximum Gain Nonlinearity: 0.001% FSR

• AC Performance:

– Bandwidth: 500 kHz

– Typical Slew Rate: 5 V/μs • Wide Supply Range: ±2.0 V to ±18 V 

– Maximum Quiescent Current: 900 μA 

– Output Swing on ±15-V Supplies: ±13.5 V • Input Protection:

– Common-Mode: ±500 V 

– Differential: ±500 V

APPLICATIONS

• High-Voltage Current Sensing

• Battery Cell Voltage Monitoring

• Power-Supply Current Monitoring

• Motor Controls

• Replacement for Isolation Circuits

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 to 500 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 extended industrial temperature range of –40°C to +125°C.

Request a quote INA149AIDR at censtry.com. All items are new and original with 365 days warranty! The excellent quality and guaranteed services of INA149AIDR in stock for sale, check stock quantity and pricing, view product specifications, and order contact us：sales@censtry.com.
The price and lead time for INA149AIDR depending on the quantity required, please send your request to us, our sales team will provide you price and delivery within 24 hours, we sincerely look forward to cooperating with you.