IC Measures Power and Temperature

June 26th, 2006

This chip isn’t made specifically for test equipment, but it seems to me that there must be an application for it somewhere…..Dan

The MX844 measures current, voltage, and temperature, and is a fully integrated subsystem that outputs serial data with a resolution of 3 1/2 digits plus sign. The fully differential sense amplifier has been optimized to measure very small voltages near ground and includes an internal temperature sensor with 0.2 degree C resolution. The device may be used with a 4-wire standard synchronous serial I/O interface or scan mode controlled by serial EEPROM. Additionally there is an asynchronous serial “talk-only” data output.

The MX844 operates with supply voltages between 4.5V to 40V and is compatible with most microcontrollers over an operating temperature of -40 degrees C to +85 degrees C. When used with a low impedance shunt in series with the negative terminal of a battery, the MX844 can be used to determine the remaining battery capacity.

For more information, visit the Micronix website.

Entry Filed under: Everything Else