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ADS7863IDBQR Datasheet(PDF) 1 Page - Texas Instruments |
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ADS7863IDBQR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 44 page S/H Comparator CDAC Input MUX AV DD REF IN SAR S/H Comparator CDAC Input MUX REF OUT AGND SAR 10-BitDAC 2.5VReference CHA0+ CHA0- CHA1+ CHA1- BV DD SDOA SDOB M0 M1 SDI CLOCK CS RD BUSY CONVST BGND CHB0+ CHB0- CHB1+ CHB1- ADS7863 www.ti.com SBAS383E – JUNE 2007 – REVISED JANUARY 2011 Dual, 2MSPS, 12-Bit, 2 + 2 or 3 + 3 Channel, Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTER Check for Samples: ADS7863 1 FEATURES DESCRIPTION 2 • Four Fully- or Six Pseudo-Differential Inputs The ADS7863 is a dual, 12-bit, 2MSPS, analog-to-digital converter (ADC) with four fully • SNR: 71dB, THD: –81dB differential or six pseudo-differential input channels • Programmable and Buffered Internal 2.5V grouped into two pairs for high-speed, simultaneous Reference signal acquisition. Inputs to the sample-and-hold • Flexible Power-Down Features (S/H) amplifiers are fully differential and are maintained differential to the input of the ADC. This • Variable Power-Supply Ranges: 2.7V to 5.5V architecture provides excellent common-mode • Low-Power Operation: 45mW at 5V rejection of 72dB at 100kHz, which is a critical • Operating Temperature Range: performance characteristic in noisy environments. –40°C to +125°C The ADS7863 is pin-compatible with the ADS7861, • Pin-Compatible with ADS7861 and ADS8361 but offers additional features such as a (SSOP package) programmable reference output, flexible supply voltage (2.7V to 5.5V for AVDD and BVDD), a APPLICATIONS pseudo-differential input multiplexer with three channels per ADC, and several power-down features. • Motor Control • Multi-Axis Positioning Systems The ADS7863 is offered in an SSOP-24 and a • Three-Phase Power Control 4x4mm QFN-24 package. It is specified over the extended operating temperature range of –40°C to +125°C. Functional Block Diagram 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2007–2011, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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