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ADS9224R
  • ADS9224R
  • ADS9224R

ADS9224R

ACTIVE

16-bit, 3-MSPS, dual-channel, simultaneous-sampling SAR ADC with internal reference and enhanced SPI

Texas Instruments ADS9224R Product Info

1 April 2026 3

Parameters

Resolution (Bits)

16

Sample rate (max) (ksps)

3000

Number of input channels

2

Interface type

Enhanced SPI, SPI

Architecture

SAR

Input type

Differential

Multichannel configuration

Simultaneous Sampling

Rating

Catalog

Reference mode

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)

120

Analog supply voltage (min) (V)

4.5

Analog supply voltage (max) (V)

5.5

SNR (dB)

93.5

Digital supply (min) (V)

1.65

Digital supply (max) (V)

5.5

Package

VQFN (RHB)-32-25 mm² 5 x 5

Features

  • High resolution, high throughput:
    • ADS9224R: 16 bits, 3 MSPS, low latency: 333 ns
    • ADS9234R: 14 bits, 3.5 MSPS, low latency: 285 ns
  • Two unipolar, fully differential simultaneously sampled channels
  • Excellent DC and AC performance:
    • ADS9224R:
      • 16-bit NMC DNL, ±2-LSB max INL
      • 94-dB SNR, –109-dB THD
      • 88-dB SINAD at 1 MHz
    • ADS9234R:
      • 14-bit NMC DNL, ±1-LSB max INL
      • 85.6-dB SNR, –106-dB THD
      • 84-dB SINAD at 1 MHz
  • Feature integration:
    • Internal reference and reference buffers
    • Internal REFby2 buffer for setting common-mode
    • Data averaging
  • Enhanced-SPI interface for MCUs and FPGAs:
    • Wide read cycle to read data with MCUs
    • Clock re-timer for data transfers with digital isolators
    • DDR modes for FPGAs
    • Parallel byte mode for easy interface
  • Extended temperature range: –40°C to +125°C
  • High resolution, high throughput:
    • ADS9224R: 16 bits, 3 MSPS, low latency: 333 ns
    • ADS9234R: 14 bits, 3.5 MSPS, low latency: 285 ns
  • Two unipolar, fully differential simultaneously sampled channels
  • Excellent DC and AC performance:
    • ADS9224R:
      • 16-bit NMC DNL, ±2-LSB max INL
      • 94-dB SNR, –109-dB THD
      • 88-dB SINAD at 1 MHz
    • ADS9234R:
      • 14-bit NMC DNL, ±1-LSB max INL
      • 85.6-dB SNR, –106-dB THD
      • 84-dB SINAD at 1 MHz
  • Feature integration:
    • Internal reference and reference buffers
    • Internal REFby2 buffer for setting common-mode
    • Data averaging
  • Enhanced-SPI interface for MCUs and FPGAs:
    • Wide read cycle to read data with MCUs
    • Clock re-timer for data transfers with digital isolators
    • DDR modes for FPGAs
    • Parallel byte mode for easy interface
  • Extended temperature range: –40°C to +125°C

Description

The ADS92x4R is a pin-compatible, high-speed, dual, simultaneous-sampling, analog-to-digital converters (ADC) with an integrated reference and reference buffer. The device can operate on a single 5-V supply and supports unipolar, fully differential analog input signals with excellent DC and AC specifications. The device has excellent AC performance with analog input frequencies up to 1.5 MHz, which makes the device suitable for wide-bandwidth data acquisition (DAQ) systems.

The device supports SPI-compatible serial (enhanced-SPI) and byte-wide parallel interfaces, making the device easy to pair with a diversity of microcontrollers, digital signal processors (DSPs), and field-programmable gate arrays (FPGAs). This device also supports a data averaging feature that provides an AC performance boost in noisy environments.

The device comes in a space-saving, 5-mm × 5-mm, VQFN package. The ADS92x4R is specified for the extended temperature range of –40°C to +125°C.

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