High-Voltage, Precision, Low-Power Op Amps

The MAX9943/MAX9944 is a family of high-voltage amplifiers that offers precision, low drift, and low power consumption.

The MAX9943 (single) and MAX9944 (dual) op amps offer 2.4MHz of gain-bandwidth product with only 550µA of supply current per amplifier.

The MAX9943/MAX9944 family has a wide power supply range operating from ±3V to ±19V dual supplies or a 6V to 38V single supply.

The MAX9943/MAX9944 are ideal for sensor signal conditioning, high-performance industrial instrumentation and loop-powered systems (e.g., 4mA–20mA transmitters).

The MAX9943 is offered in a space-saving 6-pin TDFN or 8-pin µMAX® package. The MAX9944 is offered in an 8-pin SO or an 8-pin TDFN package. These devices are specified over the -40°C to +125°C automotive temperature range.

Applications

* Amplifiers * Automatic Test Equipment (ATE) * Displays: Industrial, Front Panel, and Instrumentation * High-Performance ADC/DAC Input/Output * High-Voltage ATE * Industrial Instrumentation * Industrial: Process Measurement and Control * Loop-Powered Systems * Panel Meters * Power Meters * Programmable Logic Controllers (PLCs) * Sensor Interfaces

* Wide 6V to 38V Supply Range

* Low 100µV (max) Input Offset Voltage

* Low 0.4µV/°C Offset Drift

* Unity Gain Stable with 1nF Load Capacitance

* 2.4MHz Gain-Bandwidth Product

* 550µA Supply Current

* 20mA Output Current

* Rail-to-Rail Output

* Package Options

* 3mm x 5mm, 8-Pin µMAX or 3mm x 3mm, 6-Pin TDFN Packages (Single)

* 5mm x 6mm, 8-Pin SO or 3mm x 3mm, 8-Pin TDFN Packages (Dual)