AD7922 PDF Datasheet


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Description

This is 2-Channel/ 2.35 V to 5.25 V/ 1 MSPS/ 10-/12-Bit ADCs. 2-Channel, 2.35 V to 5.25 V, 1 MSPS, 10-, 12-Bit ADCs AD7912, AD7922 FEATURES Fast throughput rate: 1 MSPS Specified for VDD of 2.35 V to 5.25 V Low power: 4.8 mW typ at 1 MSPS with 3 V supplies 15.5mW typ at 1 MSPS with 5 V supplies Wide input bandwidth: 71 dB minimum SNR at 100 kH- input frequency Flexible power, serial clock speed management No pipeline delays High speed serial interface: SPI®, QSPI™, MICROWIRE™, DSP compatible Standby mode: 1 A maximum Daisy-chain mode 8-lead TSOT package 8-lead MSOP package FUNCTIONAL BLOCK DIAGRAM VDD VIN0 MUX VIN1 T, H 10-, 12-BIT SUCCESSIVE APPROXIMATION ADC SCLK CS AD7912, AD7922 CONTROL LOGIC DOUT 04351-0-001 DIN GND APPLICATIONS Battery-powered systems: Personal digital assistants Medical instruments Mobile communications Instrumentation and control systems Data acquisition systems High speed modems Optical sensors Figure 1. Several AD7912, AD7922 can be connected together in a daisy chain. The AD7912, AD7922 feature a daisy-cha.