AM400 is an universal amplifier IC for sensing and signal-conditioning applications. It is suitable for differential or single-ended input voltages and generates both a voltage and a current output signal. Its modular design, integrated voltage and current source and protection functions allow a wide range of industrial applications.
Input: >50mVFS and single ended
Output: 0...5/10V, 0/4...20mA, and output for A/D converter
The most versatile IC anywhere!
Block Diagram

Features
- Wide Supply Voltage Range: 6...35V
- Wide Operating Temperature Range: -40°C...+85°C
- Small Package Dimensions SO16(n)
- Internal Voltage Reference for Transducer Excitation
- Additional Current/Voltage Source
- Instrumentation and Operational Amplifier Input
- Adjustable Gain and Offset
- Three Analog Outputs Parallel
(0...5V, 0...10V, 0/4...20mA) or Two Wire Output (4...20mA) - Protection Against Reverse Polarity
Applications
- Industrial Process Control
- Universal Pressure Interface
- Universal Sensor Interface