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ADS7043
  • ADS7043
  • ADS7043
  • ADS7043

ADS7043

ACTIVE

Ultra-Low-Power Ultra-Small-Size SAR ADC | 12 Bit | 1MSPS | Pseudo Differential

Texas Instruments ADS7043 Product Info

1 April 2026 3

Parameters

Resolution (Bits)

12

Sample rate (max) (ksps)

1000

Number of input channels

1

Interface type

SPI

Architecture

SAR

Input type

Pseudo-Differential

Rating

Catalog

Reference mode

Supply

Input voltage range (max) (V)

3.6

Input voltage range (min) (V)

0

Features

Small Size

Operating temperature range (°C)

-40 to 125

Power consumption (typ) (mW)

0.243

Analog supply voltage (min) (V)

1.65

Analog supply voltage (max) (V)

3.6

SNR (dB)

70

Digital supply (min) (V)

1.65

Digital supply (max) (V)

3.6

Package

VSSOP (DCU)-8-6.2 mm² 2 x 3.1

Features

  • Industry’s First SAR ADC with Nanowatt Power Consumption:
    • 243 µW at 1 MSPS with 1.8-V AVDD
    • 780 µW at 1 MSPS with 3-V AVDD
    • 78 µW at 100 kSPS with 3-V AVDD
    • Less than 1 µW at 1 kSPS with 3-V AVDD
  • Industry’s Smallest SAR ADC:
    • X2QFN-8 Package with 2.25-mm2 Footprint
  • 1-MSPS Throughput with Zero Data Latency
  • Wide Operating Range:
    • AVDD: 1.65 V to 3.6 V
    • DVDD: 1.65 V to 3.6 V (Independent of AVDD)
    • Temperature Range: –40°C to 125°C
  • Excellent Performance:
    • 12-Bit Resolution with NMC
    • ±1-LSB (Max) DNL and INL
    • 70-dB SNR with 3-V AVDD
    • –80-dB THD with 3-V AVDD
  • Unipolar, Pseudo Differential Input Range: –AVDD / 2 to AVDD / 2
  • Integrated Offset Calibration
  • SPI™-Compatible Serial Interface: 16 MHz
  • JESD8-7A Compliant Digital I/O
  • Industry’s First SAR ADC with Nanowatt Power Consumption:
    • 243 µW at 1 MSPS with 1.8-V AVDD
    • 780 µW at 1 MSPS with 3-V AVDD
    • 78 µW at 100 kSPS with 3-V AVDD
    • Less than 1 µW at 1 kSPS with 3-V AVDD
  • Industry’s Smallest SAR ADC:
    • X2QFN-8 Package with 2.25-mm2 Footprint
  • 1-MSPS Throughput with Zero Data Latency
  • Wide Operating Range:
    • AVDD: 1.65 V to 3.6 V
    • DVDD: 1.65 V to 3.6 V (Independent of AVDD)
    • Temperature Range: –40°C to 125°C
  • Excellent Performance:
    • 12-Bit Resolution with NMC
    • ±1-LSB (Max) DNL and INL
    • 70-dB SNR with 3-V AVDD
    • –80-dB THD with 3-V AVDD
  • Unipolar, Pseudo Differential Input Range: –AVDD / 2 to AVDD / 2
  • Integrated Offset Calibration
  • SPI™-Compatible Serial Interface: 16 MHz
  • JESD8-7A Compliant Digital I/O

Description

The ADS7043 is a 1-MSPS, analog-to-digital converter (ADC). The device supports a wide analog input voltage range (±0.825 V to ±1.8 V) and includes a capacitor-based, successive-approximation register (SAR) ADC with an inherent sample-and-hold circuit. The SPI-compatible serial interface is controlled by the CS and SCLK signals. The input signal is sampled with the CS falling edge and SCLK is used for conversion and serial data output. The device supports a wide digital supply range (1.65 V to 3.6 V), enabling direct interface to a variety of host controllers. The device complies with the JESD8-7A standard for normal DVDD range (1.65 V to 1.95 V).

The device is available in 8-pin, miniature, leaded, and X2QFN packages and is specified for operation from –40°C to 125°C. Miniature form-factor and extremely low-power consumption make this device suitable for space-constrained, battery-powered applications.

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