Part Number : ADS7042
Function : Ultra-Low Power, Ultra-Small Size, 12-Bit, 1-MSPS, SAR ADC
Package: X2QFN, VSSOP 8 Pin
Manufacturers : Texas Instruments
The ADS7042 is a 12-bit, 1-MSPS, analog-to-digital converter (ADC). The device supports a wide analog input voltage range (1.8 V to 3.6 V) and includes a capacitor-based, successive-approximation register (SAR) ADC with an inherent sample-and-hold circuit.
The SPI-compatible serial interface is controlled by the CS and SCLK signals. The input signal is sampled with the CS falling edge and SCLK is used for conversion and serial data output. The device supports a wide digital supply range (1.65 V to 3.6 V), enabling direct interface to a variety of host controllers. The ADS7042 complies with the JESD8-7A standard for normal DVDD range (1.65 V to 1.95 V).
The IC is available in 8-pin, miniature, leaded, and X2QFN packages and is specified for operation rom –40°C to 125°C. Miniature form-factor and extremely low-power consumption make this device suitable for space-constrained, battery-powered applications.
The device is an ultralow-power, ultra-small analog-to-digital converter (ADC) that supports a wide analog input range. The analog input range for the device is defined by the AVDD supply voltage. The device samples the input voltage across the AINP and AINM pins on the CS falling edge and starts the conversion. The clock provided on the SCLK pin is used for conversion and data transfer. During conversions, both the AINP and AINM pins are disconnected from the sampling circuit. After the conversion completes, the sampling capacitors are reconnected across the AINP and AINM pins and the ADS7042 enters acquisition phase.
Other data sheets within the file :
7042, ADS7042IDCUR, ADS7042IDCUT, ADS7042IRUGR