The recommended operating temperature range for COP472N-3 is -40°C to 125°C, although the device can withstand storage temperatures from -65°C to 150°C.
To ensure accurate voltage measurement, it's essential to use a high-impedance input buffer, such as an op-amp, to prevent loading the voltage source. Additionally, ensure the input voltage is within the specified range (0V to 5.5V) and that the device is properly calibrated.
The internal 2.5V reference voltage is used as a voltage reference for the analog-to-digital converter (ADC) and can also be used as a voltage source for external circuitry. This reference voltage is accurate to ±1% over the operating temperature range.
COP472N-3 can be interfaced with a microcontroller using a 3-wire serial interface (SCLK, SDI, and SDO). The microcontroller can send commands and data to the COP472N-3 using the SDI pin, and receive data from the COP472N-3 using the SDO pin. The SCLK pin is used to clock the data transfer.
The power consumption of COP472N-3 depends on the operating mode. In normal operation, the device consumes around 1.5mA at 5V supply voltage. In shutdown mode, the current consumption is typically less than 1μA.
COP472N-3 datasheet
by Texas Instruments
