Electronicdesign 6491 1009npdtti
Electronicdesign 6491 1009npdtti
Electronicdesign 6491 1009npdtti
Electronicdesign 6491 1009npdtti
Electronicdesign 6491 1009npdtti

Digital Current Sensor/Voltage Monitor Introduces Simultaneous Sampling

Oct. 10, 2013
Integrating a precision current-sense amplifier and two 12-bit analog-to-digital converter (ADC) channels, Texas Instruments’ LMP92064 can simultaneously capture voltage and current data.

Integrating a precision current-sense amplifier and two 12-bit analog-to-digital converter (ADC) channels, Texas Instruments’ LMP92064 can simultaneously capture voltage and current data. In addition, a four-wire Serial Peripheral Interface (SPI) transfers real-time data at up to 20 MHz. Maximum input offset voltage is ±15 µV, and maximum gain error runs less than ±0.75%. A 125-ksample/s conversion rate allows for more accurate power-fluctuation measurements. Unidirectional input and output lines simplify interfacing to isolation devices, such as TI’s ISO7141CC quad-channel digital isolator. The device comes in a 16-pin, 5- by 4-mm WSON package. Also available is the LMP92064 evaluation module, which quickly demonstrates current-shunt monitor functionality. It includes a USB interface and software to configure and monitor device performance. Applications include communications infrastructure, including telecom, servers, and central office equipment.

TEXAS INSTRUMENTS INC.

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!