Overview
The AD203SN is a rugged, military temperature range, 10 kHz bandwidth isolation amplifier designed and built by Analog Devices Inc. for use in hostile operating environments. It is part of the AD200 Series of low-cost, high-performance, transformer-coupled isolation amplifiers. The AD203SN provides total galvanic isolation between the input and output stages, including the power supplies, through internal transformer coupling. This design eliminates the need for an external DC/DC converter, minimizing circuit overhead and reducing design and component costs. The amplifier is powered by a single +15 V DC supply and maintains high operating performance even under sustained common mode stress.
Key Specifications
| Specification | Value |
|---|---|
| Bandwidth | 10 kHz Full Power Bandwidth |
| Output Range | ±10 V min (Into a 2.5 kΩ Load) |
| Nonlinearity | ±0.025% max |
| Common Mode Voltage Isolation | 1500 V RMS Continuous |
| Isolated Power Supply | ±15 V DC @ ±5 mA |
| Temperature Range | -55°C to +125°C Rated Performance |
| Size | 2.23" x 0.83" x 0.65" (56.6 mm x 21.1 mm x 16.5 mm) |
| Input Amplifier | Uncommitted Input Amplifier |
| Isolation Method | Two-Port Isolation Through Transformer Coupling |
Key Features
- Rugged Design: Characterized to MIL-STD-883C environmental test methods, including moisture resistance, temperature cycling, mechanical shock, lead integrity, variable frequency vibration, and resistance to solvents.
- Reliable Design: Conforms to stringent quality and reliability standards.
- High CMV Isolation: 1500 V RMS Continuous.
- Isolated Power Supply: ±15 V DC @ ±5 mA.
- Low Nonlinearity: ±0.025% max.
- Flexible Input Stage: Uncommitted op amp for input buffering and gain as needed.
- Small Size: 2.23" x 0.83" x 0.65" (56.6 mm x 21.1 mm x 16.5 mm).
Applications
- Engine Monitoring and Control: Suitable for monitoring and controlling engine parameters in harsh environments.
- Mobile Multichannel Data Acquisition Systems: Ideal for data acquisition in mobile and multichannel systems.
- Instrumentation and/or Control Signal Isolation: Used for isolating instrumentation and control signals to prevent ground loops and noise.
- Current Shunt Measurements: Applicable for current shunt measurements in high CMV conditions.
- High Voltage Instrumentation Amplifier: Suitable for high voltage instrumentation applications.
Q & A
- What is the bandwidth of the AD203SN isolation amplifier? The AD203SN has a 10 kHz full power bandwidth.
- What is the output range of the AD203SN? The output range is ±10 V min (Into a 2.5 kΩ Load).
- What is the nonlinearity of the AD203SN? The nonlinearity is ±0.025% max.
- What is the common mode voltage isolation of the AD203SN? The common mode voltage isolation is 1500 V RMS Continuous.
- What is the isolated power supply of the AD203SN? The isolated power supply is ±15 V DC @ ±5 mA.
- What is the temperature range of the AD203SN? The temperature range is -55°C to +125°C Rated Performance.
- What are the key environmental tests the AD203SN is characterized for? The AD203SN is characterized for MIL-STD-883C environmental test methods, including moisture resistance, temperature cycling, mechanical shock, lead integrity, variable frequency vibration, and resistance to solvents.
- What type of isolation does the AD203SN provide? The AD203SN provides two-port isolation through transformer coupling.
- What are some typical applications of the AD203SN? Typical applications include engine monitoring and control, mobile multichannel data acquisition systems, instrumentation and/or control signal isolation, current shunt measurements, and high voltage instrumentation amplifier.
- What is the size of the AD203SN? The size is 2.23" x 0.83" x 0.65" (56.6 mm x 21.1 mm x 16.5 mm).
