ADS9224R - 3MSPS, Dual, Simultaneous-Sampling SAR ADC w/ Internal Reference, Reference Buffer, and Enhanced SPI

The ADS92x4R is a pin-compatible, high-speed, dual,simultaneous-sampling, analog-to-digital converters (ADC) with an integratedreference and reference buffer. The device can operate on a single 5-V supply and supportsunipolar, fully differential analog input signals with excellent DC and AC specifications.

The device supports SPI-compatible serial (enhanced-SPI) and byte-wide parallelinterfaces, making the device easy to pair with a diversity of microcontrollers, digital signalprocessors (DSPs), and field-programmable gate arrays (FPGAs).

The device comes in a space-saving, 5-mm × 5-mm, VQFN package. TheADS92x4R is specified for the extended temperature range of –40°C to+125°C.

• High Resolution, High Throughput:
  • ADS9224R: 16 Bit, 3 MSPS
  • ADS9234R: 14 Bit, 3 MSPS
• Fast Response Time With Low Latency: 333 ns
• Higher Performance Over Wide Analog Bandwidth:
  • ADS9224R: 83-dB SINAD at 1.4 MHz
  • ADS9234R: 80-dB SINAD at 1.4 MHz
• Two Simultaneously Sampled channels
• Unipolar, Fully Differential Inputs
• Wide Common-Mode Voltage Range
• Excellent DC and AC Performance:
  • ADS9224R:
    • 16-Bit NMC DNL, ±2-LSB Max INL
    • 93.5-dB SNR, –110-dB THD
    • 80-dB CMRR
  • ADS9234R:
    • 14-Bit NMC DNL, ±1-LSB Max INL
    • 85.6-dB SNR, –106-dB THD
    • 75-dB CMRR
• Integrated Reference and Reference Buffers
• Integrated REFby2 Buffer for Setting Common Mode
• Integrated Data Averaging
• Enhanced-SPI Interface for MCUs and FPGAs:
  • Wide Read Cycle to Read Data With MCUs
  • CRT for Data Transfers With Digital Isolators
  • DDR Modes for FPGAs
• Parallel Byte Mode for Easy Interface
• Extended Temperature Range: –40°C to +125°C
• Small Footprint: 5-mm × 5-mm VQFN

All trademarks are the property of their respective owners.