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ADS7865

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Dual, 2MSPS, 12-Bit, 3+3 or 2+2 Channel, Simultaneous Sampling ADC

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Data sheet

ADS7865

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 12 Sample rate (max) (ksps) 2000 Number of input channels 6 Interface type Parallel Architecture SAR Input type Differential, Pseudo-Differential Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 30 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 SNR (dB) 71.7 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
Resolution (Bits) 12 Sample rate (max) (ksps) 2000 Number of input channels 6 Interface type Parallel Architecture SAR Input type Differential, Pseudo-Differential Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 30 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 SNR (dB) 71.7 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
TQFP (PBS) 32 49 mm² 7 x 7
  • Six Pseudo- or Four Fully Differential Inputs
  • SNR: 71.7dB, THD: –87dB
  • Programmable Channel Sequencer
  • Programmable and Buffered Internal 2.5V Reference
  • Flexible Power-Down Features
  • Variable Power-Supply Ranges: 2.7V to 5.5V
  • Low-Power Operation: 44mW Maximum at 5V
  • Operating Temperature Range:
    –40°C to +125°C
  • Pin-Compatible Upgrade for the ADS7862
  • Six Pseudo- or Four Fully Differential Inputs
  • SNR: 71.7dB, THD: –87dB
  • Programmable Channel Sequencer
  • Programmable and Buffered Internal 2.5V Reference
  • Flexible Power-Down Features
  • Variable Power-Supply Ranges: 2.7V to 5.5V
  • Low-Power Operation: 44mW Maximum at 5V
  • Operating Temperature Range:
    –40°C to +125°C
  • Pin-Compatible Upgrade for the ADS7862

The ADS7865 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 differentially 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 ADS7865 is pin-compatible with the ADS7862, but offers additional features such as a programmable channel sequencer and 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 ADS7865 is offered in a TQFP-32 package. It is specified over the extended operating temperature range of –40°C to +125°C.

The ADS7865 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 differentially 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 ADS7865 is pin-compatible with the ADS7862, but offers additional features such as a programmable channel sequencer and 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 ADS7865 is offered in a TQFP-32 package. It is specified over the extended operating temperature range of –40°C to +125°C.
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Top documentation Type Title Format options Date
* Data sheet Dual, 12-Bit, 3+3 or 2+2 Channel, Simultaneous Sampling ADC datasheet (Rev. C) 17 Apr 2012
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 21 May 2015
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
Application note Interfacing the ADS786x to the MSP430F2013 15 Jun 2006

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