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ADS7842
  • ADS7842
  • ADS7842

ADS7842

ACTIVE

12-Bit, 4-Channel Parallel Output Sampling Analog-to-Digital Converter

Texas Instruments ADS7842 Product Info

1 April 2026 3

Parameters

Resolution (Bits)

12

Sample rate (max) (ksps)

200

Number of input channels

4

Interface type

Parallel

Architecture

SAR

Input type

Single-ended

Multichannel configuration

Multiplexed

Rating

Catalog

Reference mode

External

Input voltage range (max) (V)

5.25

Input voltage range (min) (V)

0

Operating temperature range (°C)

-40 to 85

Power consumption (typ) (mW)

1.8

Analog supply voltage (min) (V)

2.7

Analog supply voltage (max) (V)

5.25

SNR (dB)

70

Digital supply (min) (V)

2.7

Digital supply (max) (V)

5.25

Package

SSOP (DB)-28-79.56 mm² 10.2 x 7.8

Features

  • SINGLE SUPPLY: 2.7V to 5V
  • 4-CHANNEL INPUT MULTIPLEXER
  • UP TO 200kHz SAMPLING RATE
  • FULL 12-BIT PARALLEL INTERFACE
  • ±1LSB INL AND DNL
  • NO MISSING CODES
  • 72dB SINAD
  • LOW POWER:2mW
  • SSOP-28 PACKAGE
  • APPLICATIONS
    • DATA ACQUISITION
    • TEST AND MEASUREMENT
    • INDUSTRIAL PROCESS CONTROL
    • MEDICAL INSTRUMENTS
    • LABORATORY EQUIPMENT

All trademarks are the property of their respective owners.

  • SINGLE SUPPLY: 2.7V to 5V
  • 4-CHANNEL INPUT MULTIPLEXER
  • UP TO 200kHz SAMPLING RATE
  • FULL 12-BIT PARALLEL INTERFACE
  • ±1LSB INL AND DNL
  • NO MISSING CODES
  • 72dB SINAD
  • LOW POWER:2mW
  • SSOP-28 PACKAGE
  • APPLICATIONS
    • DATA ACQUISITION
    • TEST AND MEASUREMENT
    • INDUSTRIAL PROCESS CONTROL
    • MEDICAL INSTRUMENTS
    • LABORATORY EQUIPMENT

All trademarks are the property of their respective owners.

Description

The ADS7842 is a complete, 4-channel, 12-bit Analog-to-Digital Converter (ADC). It contains a 12-bit, capacitorbased, Successive Approximation Register (SAR) ADC with a sample-and-hold amplifier, interface for microprocessor use, and parallel, 3-state output drivers. The ADS7842 is specified at a 200kHz sampling rate while dissipating only 2mW of power. The reference voltage can be varied from 100mV to VCC with a corresponding LSB resolution from 24µV to 1.22mV. The ADS7842 is tested down to 2.7V operation.

Low power, high speed, and an onboard multiplexer make the ADS7842 ideal for battery-operated systems such as portable, multi-channel dataloggers and measurement equipment. The ADS7842 is available in an SSOP-28 package and is tested over the -40°C to +85°C temperature range.

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