ADS9224R 16-bit, 3-MSPS, dual-channel, simultaneous-sampling SAR ADC with internal reference and enhanced SPI | TI.com

ADS9224R (ACTIVE) 16-bit, 3-MSPS, dual-channel, simultaneous-sampling SAR ADC with internal reference and enhanced SPI

 

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.

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

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Parametrics

Compare all products in Precision ADCs (<=10MSPS) Email Download to Excel
Part number Order Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) INL (Max) (+/-LSB) SNR (dB) THD (Typ) (dB) Rating
ADS9224R Order now 16     3000     2     Enhanced SPI
SPI    
-40 to 125     VQFN | 32     9.90 | 1ku     120     32VQFN: 25 mm2: 5 x 5 (VQFN | 32)     SAR     Differential     Simultaneous Sampling     Int           4.5     5.5     1.65     5.5     2     93.5     -110     Catalog    
ADS7253 Order now 12     1000     2     SPI     -40 to 125     TSSOP | 16
WQFN | 16    
3.50 | 1ku     45     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)
16WQFN: 9 mm2: 3 x 3 (WQFN | 16)    
SAR     Pseudo-Differential
Single-Ended    
Simultaneous Sampling     Ext
Int    
Small Size     5.5     0     4.5     5.5     1.65     5.5     1     73.5     -90     Catalog    
ADS7853 Order now 14     1000     2     SPI     -40 to 125     TSSOP | 16
WQFN | 16    
6.00 | 1ku     45     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)
16WQFN: 9 mm2: 3 x 3 (WQFN | 16)    
SAR     Pseudo-Differential
Single-Ended    
Simultaneous Sampling     Ext
Int    
Small Size     5.5     0     4.5     5.5     1.65     5.5     2     84     -100     Catalog    
ADS8353 Order now 16     600     2     SPI     -40 to 125     TSSOP | 16
WQFN | 16    
9.00 | 1ku