Spi Current Sensor
This analog frontend afe includes a precision current sense amplifier to measure a load current across a shunt resistor and a buffered voltage channel to measure the voltage supply of the load.
Spi current sensor. Current sensor and voltage monitor with spi 1 features 3 description the lmp92064 is a precision low side digital current 1 two simultaneous sampling 12 bit adcs sensor and voltage monitor with a digital spi conversion rate. The lmp92064 is a precision low side digital current sensor and voltage monitor with a digital spi interface. Tli4970 is a high precision current sensor based on infineon s proven hall technology. Serial peripheral interface spi is an interface bus commonly used to send data between microcontrollers and small peripherals such as shift registers sensors and sd cards.
It uses separate clock and data lines along with a select line to choose the device you wish to talk to. Texas instruments have today announced the release of the industry rsquo s first digital current sensor and voltage monitor with simultaneous sampling and spi interface. Integrating a precision current sense amplifier and two 12 bit analog to digital converter channels that simultaneously capture voltage and current data the lmp92064 features an spi interface which transfers real time data at. Tli4970 is an easy to use fully digital solution that does not require external calibration or additional parts such as a d converters 0 pamps or reference voltage.
That being said if there is enough interest for an i2c current sensor please let us know. It would be something worth considering. The coreless concept significantly reduces footprint compared with existing solutions. Eric106 about 7 years ago 4 sure i agree it definitely can be done with a microcontroller s on board adc and i suppose all that bad is subjective.