New 12-bit / 1MSPS ADC supports wide analog input voltage range

The ADS7042 is a new 12-bit / 1MSPS analog-to-digital converter (ADC) from Texas Instruments. It supports a wide analog input voltage range of 1.8V to 3.6V and includes a capacitor-based SAR ADC with 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 of 1.65V to 3.6V enabling direct interface to a variety of host controllers. The ADS7042 complies with the JESD8-7A standard for normal DVDD range of 1.65V to 1.95V. The device is available in 8-pin, miniature, leaded, and X2QFN packages and is specified for operation from -40C to 125C. The device's compact form-factor and ultra low-power consumption make it suitable for space-constrained, battery-powered applications.