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ADS9224R

ACTIVE

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

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Data sheet

A newer version of this product is available

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Same functionality with different pin-out to the compared device.
NEW ADS9326 ACTIVE Two-channel, simultaneous-sampling, 16-bit 3MSPS SAR ADC in small package Higher sampling rate (3-MSPS)
NEW ADS9327 ACTIVE Two-channel, simultaneous-sampling, 16-bit 5MSPS SAR ADC in small package Higher sampling rate (5-MSPS)

ADS9224R

ACTIVE
Data sheet Order now

Product details

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
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
VQFN (RHB) 32 25 mm² (5 mm × 5 mm)
  • 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

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.

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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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet ADS92x4R Dual, Low-Latency, Simultaneous-Sampling SAR ADC datasheet (Rev. C) PDF | HTML Jun 17, 2019
Application brief Why Use an FDA to Drive an ADC? PDF | HTML Jan 8, 2026
Application brief Precision ADCs in Servo Drives (Rev. A) PDF | HTML Oct 29, 2025
Product overview Precision ADCs for Motor Encoders and Position Sensing (Rev. A) PDF | HTML Oct 28, 2025
Circuit design True differential, 4 × 2 MUX, analog front end, simultaneous-sampling ADC circui (Rev. B) PDF | HTML Sep 20, 2024
Circuit design Circuit for protecting low-voltage SAR ADC from electrical overstress with minim (Rev. A) PDF | HTML Sep 19, 2024
Application note Continuous Wave Doppler Signal Chain Designs for TI’s Ultrasound AFE (Rev. A) PDF | HTML May 22, 2024
Application brief Low Latency Signal-Chains for Digital Control Loops with ADS9219 (Rev. A) PDF | HTML May 22, 2024
Application brief Understanding and Using SAR ADC SPICE Micromodel PDF | HTML Nov 23, 2021
Application brief Continuous Wave (CW) Signal Conditioning in Ultrasound Systems Using ADS92x4R Oct 10, 2019
Application brief Setting a Constant Common-Mode Voltage for Fully-Differential SAR ADC Inputs Sep 6, 2019
Application brief Improving Response Time and Accuracy in Autonomous Robots With Wideband SAR-ADCs Oct 3, 2018

Design & development

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

Evaluation board

ADS9224REVM-PDK — ADS9224R dual-channel simultaneous-sampling SAR ADC performance demonstration kit (PDK)

The ADS9224R evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the performance of the ADS9224R successive-approximation register (SAR) analog-to-digital converter (ADC), which is a fully-differential input, 16-bit, 3-MSPS device. ADS9224REVM-PDK (...)

User guide: PDF | HTML
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Support software

SBAC219 — Source files for SBAA315

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Simulation model

ADS9224R PSpice Transient Model

SBAM464.ZIP (221 KB) - PSpice model
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Simulation model

ADS9224R TINA-TI Transient Reference Design

SBAM390.TSC (502 KB) - TINA-TI reference design
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Simulation model

ADS9224R TINA-TI Transient Spice Model

SBAM389.ZIP (7 KB) - TINA-TI Spice model
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Simulation model

ADS92X4R IBIS Model

SBAM391.ZIP (47 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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VQFN (RHB) 32 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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