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The ADS7861 is a dual, 12-bit, 500kHz, Analog-to-Digital (A/D) converter with four fully differential input channels grouped into two pairs for high speed, simultaneous signal acquisition. Inputs to the sample-and-hold amplifiers are fully differential and are maintained differential to the input of the A/D converter. This provides excellent common-mode rejection of 80dB at 50kHz which is important in high noise environments.
The ADS7861 offers a high-speed, dual serial interface and control inputs to minimize software overhead. The output data for each channel is available as a 12-bit word. The ADS7861 is offered in both an SSOP-24 and a QFN-32 package and is fully specified over the -40°C to +125°C operating range.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | Dual, 500kSPS,12-Bit, 2+2 Channel Simultaneous Sampling Analog/Digital Converter datasheet (Rev. D) | Aug 14, 2007 | |
| E-book | Best of Baker's Best: Precision Data Converters -- SAR ADCs | May 21, 2015 | ||
| Application note | Using a SAR A/D Converter for Current Measurement in Motor Control Applications (Rev. A) | May 18, 2015 | ||
| Application note | Determining Minimum Acquisition Times for SAR ADCs, part 2 | Mar 17, 2011 | ||
| Application note | Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) | Nov 10, 2010 | ||
| User guide | 5-6 K Interface Board User's Guide (Rev. C) | Mar 20, 2009 | ||
| Application note | Interfacing the ADS786x to TMS470 Processors | Jul 10, 2006 | ||
| Application note | Interfacing the ADS786x to the MSP430F2013 | Jun 15, 2006 |
For additional terms or required resources, click any title below to view the detail page where available.
The interface board consists of two signal conditioning sites, two serial EVM sites, and a parallel EVM site. Regardless of the interface type, all EVMs compatible with the 5-6K Interface Board have a standard analog interface and standard power connector. Three position screw terminals J1 and J2 (...)
The ADS8361EVM uses a circuit board designated ADS78-8361EVM. This EVM board will accept either the ADS7861 (12bit) or the ADS8361 (16bit) ADC. The ADS7861 operates from 5 volts to supply AVdd & DVdd, while the ADS8361 operates from 2.7V to 3.6V to supply AVdd & DVdd. The evaluation board has a (...)
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 (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SSOP (DBQ) | 24 | Ultra Librarian |
| VQFN (RHB) | 32 | Ultra Librarian |
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