4-20mA signal conditioning
MS8115
4-20mA Current Loop Transmitter
Datasheet Download
Overview
The MS8115 / MS8116 / MS8113 are precision two‑wire current loop transmitters designed to transmit 4mA to 20mA analog signals, providing accurate current regulation and current limiting.
An integrated voltage regulator can supply 5V to external circuits. The precision internal reference provides either 2.5V or 4.096V for external circuitry. The current return pin (RET) senses any current drawn from the external circuit, enabling precise control of the output current.
Key Features
- • Two-wire current loop: 4mA to 20mA
- • Internal reference voltage: 2.5V for MS8115, 4.096V for MS8116
- • Internal reference error: 0.05%
- • Input‑output current relationship: IOUT = 100 × IIN
- • Low nonlinearity error: 0.003%
- • Output current voltage coefficient: 1μA
- • Output current load coefficient: 0.7μA
- • Wide loop supply voltage range: 8V to 40V
- • Supply current: 260μA (typical)
- • Operating temperature: –40°C to +85°C
Key Features
Two‑wire 4mA–20mA current loops
Transmitters
Current amplifiers
Voltage‑to‑current converters
Industrial control
