ADS9234R
14-bit, 3.5-MSPS, dual, simultaneous-sampling SAR ADC with internal reference and enhanced SPI
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
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | ADS92x4R Dual, Low-Latency, Simultaneous-Sampling SAR ADC datasheet (Rev. C) | PDF | HTML | 17 Jun 2019 |
Circuit design | True differential, 4 × 2 MUX, analog front end, simultaneous-sampling ADC circui (Rev. B) | PDF | HTML | 20 Sep 2024 | |
Product overview | Precision ADCs for Motor Encoders and Position Sensing | PDF | HTML | 27 Mar 2023 | |
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 | ||
EVM User's guide | ADS9224REVM-PDK User's Guide (Rev. A) | 14 Jun 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.
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 (...)
SBAC219 — Source files for SBAA315
Supported products & hardware
ADS9224R TINA-TI Transient Reference Design
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
Products
Precision op amps (Vos<1mV)
General-purpose op amps
Audio op amps
Transimpedance amplifiers
High-speed op amps (GBW ≥ 50 MHz)
Power op amps
Video amplifiers
Line drivers
Transconductance amplifiers & laser drivers
Fully differential amplifiers
Precision ADCs
Biosensing AFEs
High-speed ADCs (≥10 MSPS)
Receivers
Touchscreen controllers
Difference amplifiers
Instrumentation amplifiers
Audio line receivers
Analog current-sense amplifiers
Digital power monitors
Analog current-sense amplifiers with integrated shunt resistor
Digital power monitors with integrated shunt resistor
Die & wafer services
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
VQFN (RHB) | 32 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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