ADS7253 - SAR ADC, Dual, 1-MSPS, 12-Bit, Simultaneous Sampling

The ADS8353, ADS7853, and ADS7253 belong to a family of pin-compatible, dual, high-speed, simultaneous-sampling, analog-to-digital converters (ADCs) that support single-ended and pseudo-differential analog inputs.

Each device includes two individually programmable reference sources that can be used for system-level gain calibration. Also, a flexible serial interface that can operate over a wide power-supply range enables easy communication with a large variety of host controllers. Power consumption for a given throughput can be optimized by using the two low-power modes supported by the device. All devices are fully specified over the extended industrial temperature range (–40°C to 125°C) and are available in pin-compatible, WQFN-16 (3-mm × 3-mm) and TSSOP-16 packages.

• 16-, 14-, and 12-Bit, Pin-Compatible Family
• Simultaneous Sampling of Two Channels
• Supports Single-Ended and Pseudo-Differential Inputs
• High Speed:
  • ADS8353: 16 Bits, 600 kSPS
  • ADS7853: 14 Bits, 1 MSPS
  • ADS7253: 12 Bits, 1 MSPS
• Excellent DC Performance:
  • ADS8353:
    • 16-Bit NMC DNL, ±2.5-LSB Max INL
  • ADS7853:
    • 14-Bit NMC DNL, ±2-LSB Max INL
  • ADS7253:
    • 12-Bit NMC DNL, ±1-LSB Max INL
• Excellent AC Performance:
  • ADS8353:
    • 89-dB SNR, –95-dB THD
  • ADS7853:
    • 82-dB SNR, –90-dB THD
  • ADS7253:
    • 72-dB SNR, –90-dB THD
• Dual, Programmable, and Buffered
  2.5-V Internal Reference
• Fully-Specified Over the Extended Industrial Temperature Range: –40°C to 125°C
• Small Footprint:
  WQFN-16 (3-mm × 3-mm) and TSSOP-16