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AD7617 Datasheet(PDF) 31 Page - Analog Devices

Part # AD7617
Description  16-Channel DAS with 14-Bit, Bipolar Input, Dual Simultaneous Sampling ADC
PDF  52 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7617 Datasheet(HTML) 31 Page - Analog Devices

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AD7617
Data Sheet
Rev. 0 | Page 30 of 51
PIN FUNCTION OVERVIEW
There are several dual function pins on the AD7617. Their
functionality is dependent on the mode of operation selected by
the HW_RNGSELx pins.
Table 13 outlines the pin functionality in the different modes of
operation and interface modes.
Figure 51. AD7617 Configuration at Reset
Table 13. Pin Functionality Overview
Pins
Operation Mode
Software, HW_RNGSELx = 00
Hardware, HW_RNGSELx ≠ 00
Serial, SER/PAR = 1
Parallel, SER/PAR = 0
Serial, SER/PAR = 1
Parallel, SER/PAR = 0
CHSELx
No function, connect to
DGND
No function, connect
to DGND
CHSELx
CHSELx
SCLK/RD
SCLK
RD
SCLK
RD
WR/BURST
Connect to DGND
WR
BURST
BURST
DB15/OS0 to
DB13/OS2
Connect to DGND
DB15 to DB13
OSx
DB15 to DB13
DB12/SDOA
SDOA
DB12
SDOA
DB12
DB11/SDOB
SDOB, leave floating for
serial 1-wire mode
DB11
SDOB
DB11
DB10/SDI
SDI
DB10
Connect to DGND
DB10
DB9 to DB6, DB3
to DB2
Connect to DGND
DB9 to DB6, DB3 to
DB2
Connect to DGND
DB9 to DB6, DB3 to DB2
DB5/CRCEN
Connect to DGND
DB5
CRCEN
DB5
DB4/SER1W
SER1W
DB4
SER1W
DB4
DB1 to DB0
Connect to DGND
DB1 to DB0
Connect to DGND
Float or pull to DGND via a
10 kΩ resistor
HW_RNGSELx
HW_RNGSELx, connect to
DGND
HW_RNGSELx, connect
to DGND
HW_RNGSELx, configure
analog input range
HW_RNGSELx, configure
analog input range
SEQEN
No function, connect to
DGND
No function, connect
to DGND
SEQEN
SEQEN
REFSEL
REFSEL
REFSEL
REFSEL
REFSEL
VCC
VDRIVE
RESET
CONVST
BUSY
MODE
RANGE SETTING IN HW MODE
CHx
y
z
ACQx
CONVx
ACQy
CONVy
tRESET_WAIT
tDEVICE_SETUP
tRESET_SETUP
tRESET_HOLD
ALL MODES
HARDWARE
MODE ONLY
REFSEL
SER/PAR, SER1W
HW_RNGSEL0,
HW_RNGSEL1
CRCEN, BURST
SEQEN, OS0 TO OS2
CHSEL0 TO CHSEL2
ACTION



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