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MAX9943：High-Voltage, Precision, Low-Power Op Amps

Excellent Combination of Low Power and Precision in a Small Package

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.

Key Features 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)

MAX9943, MAX9944: Typical ±20mA Current-Source in Loop-Powered Systems Applications/Uses 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

DataSheet

Parametrics

Design kits & evaluation modules

• MAX9943EVKIT

Quality and Environmental Data

• MAX9943.pdf

Ordering Information