AD7658
AD7658 is Bipolar 12/14/16-Bit ADC manufactured by Analog Devices.
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Preliminary Technical Data
Features
6 Independent ADCs True Bipolar Analog Inputs Pin/Software Selectable Ranges:- ±10V, ±5V Fast throughput rate: 250 k SPS Specified for VCC of 4.5 V to 5.5 V Low power 160m W at 250 k SPS with 5 V supplies Wide input bandwidth: 85 d B SNR at 50 k Hz input frequency On-chip Reference and Reference Buffers Parallel and Serial Interface High speed serial interface SPI/QSPI/µWire/DSP patible Standby mode: 5 µA max i CMOSTM Process Technology 64 LQFP package
250 k SPS, 6-Channel,Simultaneous Sampling, Bipolar 12/14/16-Bit ADC AD7658/AD7657/AD7656-
FUNCTIONAL BLOCK DIAGRAM
VDD CONVSTA CONVSTB CONVSTC AVCC DVCC
CLK OSC REF BUF
+5 CONTROL LOGIC SER/PAR VDRIVE STBY OUTPUT DRIVERS DOUTA
V1
T/H
16-BIT SAR
SCLK V2 T/H BUF V3 T/H 16-BIT SAR 16-BIT SAR OUTPUT DRIVERS OUTPUT DRIVERS DOUTB
DOUTC
V4
T/H BUF
16-BIT SAR OUTPUT DRIVERS
DATA/ CONTROL LINES 4, 94
V5
T/H
16-BIT SAR
V6
T/H
16-BIT SAR
AD7656
APPLICATIONS
Power Line Monitoring systems Instrumentation and control systems Multi-axis positioning systems
AGND
DGND
Figure...
