ADS7851 - SAR ADC, Dual, 1.5 MSPS, 14 Bit, Simultaneous Sampling

The ADS7251 and ADS7851 belong to a family of pin-compatible, dual, high-speed, simultaneous-sampling, analog-to-digital converters (ADCs) that support fully-differential analog inputs and feature two independent internal voltage references. The ADS7251 offers 12-bit resolution and up to 2-MSPS sampling speed. The ADS7851 offers 14-bit resolution and up to 1.5-MSPS sampling speed.

The devices support a wide digital supply voltage range, allowing easy communication with a variety of digital host controllers using a simple, serial interface. Both devices are fully specified over the extended industrial temperature range (–40°C to +125°C) and are available in a pin-compatible, space-saving, WQFN-16 (3-mm × 3-mm) package.

• 12- and 14-Bit Pin-Compatible Family
• Simultaneous Sampling of Two Channels
• Supports Fully-Differential Analog Inputs
• Independent Internal Reference (per ADC)
• High Speed:
  • Up to 2 MSPS with the ADS7251 (12-Bit)
  • Up to 1.5 MSPS with the ADS7851 (14-Bit)
• Excellent Performance:
  • ADS7251:
    • SNR: 73 dB
    • INL: ±1 LSB
  • ADS7851:
    • SNR: 83.5 dB
    • INL: ±2 LSB
• Fully-Specified Over the Extended Industrial Temperature Range: –40°C to +125°C
• Small Footprint: WQFN-16 (3 mm × 3 mm)