Product
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ADS7863A
  • ADS7863A
  • ADS7863A
  • ADS7863A

ADS7863A

ACTIVE

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

Texas Instruments ADS7863A Product Info

1 April 2026 3

Parameters

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

Package

SSOP (DBQ)-24-51.9 mm² 8.65 x 6

Features

  • 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)

Description

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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