ADS7863
Dual, 2MSPS, 12-Bit, 3+3 or 2+2 Channel, Simultaneous Sampling Analog-To-Digital SAR Converter
ADS7863
- Four Fully- or Six Pseudo-Differential Inputs
- SNR: 71dB, THD: –81dB
- Programmable and Buffered Internal 2.5V Reference
- Flexible Power-Down Features
- Variable Power-Supply Ranges: 2.7V to 5.5V
- Low-Power Operation: 45mW at 5V
- Operating Temperature Range:
–40°C to +125°C - Pin-Compatible with ADS7861 and ADS8361 (SSOP package)
- Motor Control
- Multi-Axis Positioning Systems
- Three-Phase Power Control
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The ADS7863 is a dual, 12-bit, 2MSPS, analog-to-digital converter (ADC) with four fully differential or six pseudo-differential input channels grouped into two pairs for high-speed, simultaneous signal acquisition. Inputs to the sample-and-hold (S/H) amplifiers are fully differential and are maintained differential to the input of the ADC. This architecture provides excellent common-mode rejection of 72dB at 100kHz, which is a critical performance characteristic in noisy environments.
The ADS7863 is pin-compatible with the ADS7861, but offers additional features such as a programmable reference output, flexible supply voltage (2.7V to 5.5V for AVDD and BVDD), a pseudo-differential input multiplexer with three channels per ADC, and several power-down features.
The ADS7863 is offered in an SSOP-24 and a 4×4mm QFN-24 package. It is specified over the extended operating temperature range of –40°C to +125°C.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | Dual, 2MSPS, 12-Bit, 2 + 2 or 3 + 3 Channel, Simultaneous Sampling ADC datasheet (Rev. E) | 19 Jan 2011 |
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