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ADS7863A

ACTIVE

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

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Data sheet

ADS7863A

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 12 Sample rate (max) (ksps) 2000 Number of input channels 4 Interface type SPI Architecture SAR Input type Differential, Pseudo-Differential Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5.6 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 35.5 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 SNR (dB) 71.5 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
Resolution (Bits) 12 Sample rate (max) (ksps) 2000 Number of input channels 4 Interface type SPI Architecture SAR Input type Differential, Pseudo-Differential Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5.6 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 35.5 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 SNR (dB) 71.5 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
VQFN (RGE) 24 16 mm² (4 mm × 4 mm) SSOP (DBQ) 24 51.9 mm² (8.65 mm × 6 mm)
  • Four Fully- or Six Pseudo-Differential Inputs
  • SNR: 71 dB
  • THD: –81 dB
  • Programmable and Buffered Internal 2.5-V Reference
  • Flexible Power-Down Features
  • Variable Power-Supply Ranges: 2.7 V to 5.5 V
  • Low-Power Operation: 45 mW at 5 V
  • Operating Temperature Range:
    –40°C to +125°C
  • Pin-Compatible with the ADS7861 and ADS8361 (SSOP Package)
  • Four Fully- or Six Pseudo-Differential Inputs
  • SNR: 71 dB
  • THD: –81 dB
  • Programmable and Buffered Internal 2.5-V Reference
  • Flexible Power-Down Features
  • Variable Power-Supply Ranges: 2.7 V to 5.5 V
  • Low-Power Operation: 45 mW at 5 V
  • Operating Temperature Range:
    –40°C to +125°C
  • Pin-Compatible with the ADS7861 and ADS8361 (SSOP Package)

The ADS7863A is a dual, 12-bit, 2-MSPS, 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 ADC input. This architecture provides excellent common-mode rejection of 72 dB at 100 kHz, which is a critical performance characteristic in noisy environments.

The device is pin-compatible with the ADS7861, but offers additional features such as a programmable reference output, flexible supply voltage (2.7 V to 5.5 V for AVDD and BVDD), a pseudo-differential input multiplexer with three channels per ADC, and several power-down features.

The device is offered in an SSOP-24 and a 4-mm × 4-mm QFN-24 package. The device is specified over the extended operating temperature range of –40°C to +125°C.

The ADS7863A is a dual, 12-bit, 2-MSPS, 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 ADC input. This architecture provides excellent common-mode rejection of 72 dB at 100 kHz, which is a critical performance characteristic in noisy environments.

The device is pin-compatible with the ADS7861, but offers additional features such as a programmable reference output, flexible supply voltage (2.7 V to 5.5 V for AVDD and BVDD), a pseudo-differential input multiplexer with three channels per ADC, and several power-down features.

The device is offered in an SSOP-24 and a 4-mm × 4-mm QFN-24 package. The device is specified over the extended operating temperature range of –40°C to +125°C.
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* Data sheet Dual, 2-MSPS, 12-Bit, 2 + 2 or 3 + 3 Channel, Simultaneous-Sampling, ADC datasheet Dec 12, 2013
Application note An Introduction to the ADS7863A Apr 10, 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

ADS7863EVM — ADS7863 Evaluation Module

The ADS7863EVM uses a circuit board that will evaluate the ADS7861, ADS8361 and ADS7863 ADCs, 12-bit and 16-bit devices. The ADS7861 operates from 5 volts for AVdd & DVdd while the ADS8361 operates from 2.7V to 3.6V for AVdd & DVdd and the ADS7863 operates from 2.7V to 5.5V for AVdd and DVdd. The (...)

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Simulation model

ADS7863 IBIS Model

SBAM178.ZIP (50 KB) - IBIS model
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Calculation tool

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

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 (...)

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Design tool

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
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VQFN (RGE) 24 Ultra Librarian
SSOP (DBQ) 24 Ultra Librarian
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