Support software
ADS9234R
14-bit, 3.5-MSPS, dual, simultaneous-sampling SAR ADC with internal reference and enhanced SPI
Data sheet
A newer version of this product is available
Same functionality with different pin-out to the compared device
ADS9234R
- 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
- ADS9224R:
- 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.
Technical documentation
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View all 6 | Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | ADS92x4R Dual, Low-Latency, Simultaneous-Sampling SAR ADC datasheet (Rev. C) | PDF | HTML | 17 Jun 2019 |
| Product overview | Precision ADCs for Motor Encoders and Position Sensing (Rev. A) | PDF | HTML | 28 Oct 2025 | |
| Circuit design | True differential, 4 × 2 MUX, analog front end, simultaneous-sampling ADC circui (Rev. B) | PDF | HTML | 20 Sep 2024 | |
| Application brief | Continuous Wave (CW) Signal Conditioning in Ultrasound Systems Using ADS92x4R | 10 Oct 2019 | ||
| Application brief | Setting a Constant Common-Mode Voltage for Fully-Differential SAR ADC Inputs | 06 Sep 2019 | ||
| Application brief | Improving Response Time and Accuracy in Autonomous Robots With Wideband SAR-ADCs | 03 Oct 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 (...)
Simulation model
ADS9224R TINA-TI Transient Reference Design
SBAM390.TSC (502 KB) - TINA-TI Reference Design
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 (...)
Supported products & hardware
Design tool
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
Supported products & hardware
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool
TINA-TI — SPICE-based analog simulation program
TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (RHB) | 32 | Ultra Librarian |
Ordering & quality
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