AD7357
FEATURES
Dual 14-bit SAR ADC Simultaneous sampling Throughput rate: 4.2 MSPS per channel Specified for VDD of 2.5 V Power dissipation: 35 m W at 4.2 MSPS On-chip reference: 2.048 V ± 0.25%, 6 ppm/°C Dual conversion with read High speed serial interface SPI-/QSPI-/MICROWIRE-/DSP-patible
- 40°C to +125°C operation Shutdown mode: 10 µA maximum 16-lead TSSOP package
Differential Input, Dual, Simultaneous Sampling, 4.2 MSPS, 14-Bit, SAR ADC AD7357
FUNCTIONAL BLOCK DIAGRAM
VDD VDRIVE
VINA+ VINA- REFA T/H 14-BIT SUCCESSIVE APPROXIMATION ADC SDATAA
BUF REF BUF CONTROL LOGIC SCLK CS
REFB VINB+ VINB- T/H
14-BIT SUCCESSIVE APPROXIMATION ADC
SDATAB
AGND
AGND
REFGND
DGND
Figure 1.
GENERAL DESCRIPTION
The AD73571 is a dual, 14-bit, high speed, low power, successive approximation analog-to-digital converter (ADC) that operates from a single 2.5 V power supply and features throughput rates up to 4.2 MSPS. The part contains two ADCs, each preceded by a low noise, wide bandwidth...
