ADS7223 - 12-bit 1MSPS 4x2/2x2 Simultaneous Sampling SAR ADC

The ADS8363 is a dual, 16-bit, 1-MSPS analog-to-digital converter (ADC) with eightpseudo- or four fully-differential input channels grouped into two pairs for simultaneous signalacquisition. The analog inputs are maintained differentially to the input of the ADC. The inputmultiplexer can be used in either pseudo-differential mode, supporting up to four channels per ADC(4x2), or in fully-differential mode that allows to convert up to two inputs per ADC (2x2). TheADS7263 is a 14-bit version and the ADS7223 is a 12-bit version of the ADS8363.

The ADS8363, ADS7263, and ADS7223 offer two programmable reference outputs, flexiblesupply voltage ranges, a programmable auto-sequencer, data storage of up to four conversion resultsper channel, and several power-down features.

All devices are offered in a 5-mm x 5-mm, 32-pin VQFN package.

• Eight Pseudo- or Four Fully-Differential Inputs
• Simultaneous Sampling of Two Channels
• Excellent AC Performance:
  • SNR:
    93 dB (ADS8363)
    85 dB (ADS7263)
    73 dB (ADS7223)
  • THD:
    –98 dB (ADS8363)
    –92 dB (ADS7263)
    –86 dB (ADS7223)
• Dual Programmable and Buffered 2.5-V Reference Allows:
  • Two Different Input Voltage Range Settings
  • Two-Level PGA Implementation
• Programmable Auto-Sequencer
• Integrated Data Storage (up to 4 per channel) for Oversampling Applications
• 2-Bit Counter for Safety Applications
• Fully Specified Over the Extended Industrial Temperature Range: –40°C to +125°C

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