3-Terminal PLC Reference Design
TIPD195
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Key Document
Description
This design inputs ±10V or ±20mA and outputs 2.5V±2.3V. It utilizes the INA188, which is a zero-drift instrumentation amplifier. The 2.5V reference voltage is provided by the REF3225. Measured performance yielded just 0.153% error (typical).
Features
- 3-Terminal PLC Reference Design
- Input: ±10 V or ±20 mA
- Output: 2.5 V ± 2.3 V
- Supplies: ±15V, 5 V
- This design yielded less than 0.2% total unadjusted error
- This robust circuit reference design includes theory, error analysis, component selection, simulation, PCB design, and measured data that correlates with the simulation
See the Important Notice and Disclaimer covering reference designs and other TI resources.