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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.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | Dual, 500kSPS,12-Bit, 2+2 Channel Simultaneous Sampling Analog/Digital Converter datasheet (Rev. D) | 14 Aug 2007 | |
| E-book | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 21 May 2015 | ||
| Application note | Using a SAR A/D Converter for Current Measurement in Motor Control Applications (Rev. A) | 18 May 2015 | ||
| Technical article | Leverage coherent sampling and FFT windows when evaluating SAR ADCs (Part 1) | 13 Mar 2015 | ||
| EVM User's guide | ADS7861/7863/8361EVM Users Guide (Rev. A) | 19 May 2011 | ||
| Application note | Determining Minimum Acquisition Times for SAR ADCs, part 2 | 17 Mar 2011 | ||
| Application note | Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) | 10 Nov 2010 | ||
| User guide | 5-6 K Interface Board User's Guide (Rev. C) | 20 Mar 2009 | ||
| Application note | Interfacing the ADS786x to TMS470 Processors | 10 Jul 2006 | ||
| Application note | Interfacing the ADS786x to the MSP430F2013 | 15 Jun 2006 | ||
| EVM User's guide | 5-6 K Interface Board EVM User's Guide (Rev. A) | 27 May 2004 |
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 (...)
| Package | Pins | Download |
|---|---|---|
| SSOP (DBQ) | 24 | View options |
| VQFN (RHB) | 32 | View options |
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