The ADS7042 is a 12-bit, 1-MSPS, analog-to-digital converter (ADC). The device supports a wide analog input voltage range (1.65 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 ADS7042 is available in 8-pin, miniature, leaded, and X2QFN packages and is specified for operation from –40°C to 125°C. Miniature form-factor and extremely low-power consumption make this device suitable for space-constrained, battery-powered applications.
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The ADS7042 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the 12-bit, ADS7042 successive approximation register (SAR) analog-to-digital converter (ADC).
The PDK includes the ADS7042 evaluation board, precision host interface (PHI) controller board, and (...)
The ADS7042 Ultra-Low Power Data Acquisition BoosterPack is a stand-alone system that converts analog sensor data into digital SPI data using the TI ADS7042 Successive Approximation Register Analog-to-Digital Converter. This BoosterPack has been designed to be compatible with the TI (...)
PLABS-SAR-EVM-PDK is an experimental platform used in conjunction with TI Precision Labs videos to gain a deeper understanding of successive approximation register (SAR) analog-to-digital converter (ADC) circuits. The evaluation module (EVM) platform contains two channels for common SAR (...)
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
This Verified Precision Design details the design procedure, simulated results, and showcases the actual performance of a 12-bit discrete data acquisition block using the ADS7042, optimized for extremely low power, small form factor applications for the following three different optimizations:
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This circuit is designed to condition and digitize an electrocardiogram signal output from the integrated PACE_OUT buffer on the ADS129x to detect artifacts of an artificial pacemaker. This circuit includes an op amp which serves as a signal conditioner and input driver for a fast-sampling SAR ADC.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VSSOP (DCU) | 8 | Ultra Librarian |
| X2QFN (RUG) | 8 | Ultra Librarian |
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