Analog Devices EVAL-AD7761FMCZ User Manual page 6

UG-949
Link No. Default Option
SL7 A
SL8 A
SL9 A
SL10 A
SL11 A
SL12 A
SL13 A
SL14 A
SL15 A
SL16 B
SL17 B
SL18 Unsoldered
SL19 A
SL22, SL23
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Description
Pin 17: ST1/SCLK.
Position A: SCLK in SPI mode.
Position B: Channel 4 to Channel 7 in standby mode (pin mode).
Position C: Channel 4 to Channel 7 enabled (pin mode).
Pin 18: DEC1/SDI.
Position A: SDI in SPI mode.
Position B: IOVDD.
Position C: GND.
Pin 19: DEC0/SDO.
Position A: SDO in SPI mode.
Position B: IOVDD.
Position C: GND.
Pin 12: MODE0/GPIO0.
Position A: GPIO to SDP.
Position B: GND.
Position C: IOVDD.
Pin 13: MODE1/GPIO1.
Position A: GPIO to SDP.
Position B: GND.
Position C: IOVDD.
Pin 14: MODE2/GPIO2.
Position A: GPIO to SDP.
Position B: GND.
Position C: IOVDD.
Pin 15: MODE3/GPIO3.
Position A: GPIO to SDP.
Position B: GND.
Position C: IOVDD.
Pin configuration mode. The AD7761
via the register map. This link selects the filter mode (only available in pin mode).
Position A: GPIO4.
Position B: sinc5 fast settling filter.
Position C: wideband low ripple filter.
Select common-mode voltage to bias input signals to one of the following:.
Position A: OP2177 buffered VCM output.
Position B: VCM output from the AD7761.
Select reference path from the ADR444
Position A: bypass the external reference buffer.
Position B: ADR444 input into the
Select reference path from the ADR444
Position A: bypass the external reference buffer.
Position B: select output from the
Shorts IOVDD to DREGCAP, only for IOVDD = 1.8 V operation; see the
External common mode buffer input selection.
Position A: AD7761 VCM pin.
Position B: AVDD1 is used for common-mode selection, R166 (0 Ω) and R167 (not inserted) can be
used as voltage dividers.
Selects the output from Channel 5 amplifier driver option.
Position A: ADA4896-2.
Position B: bypass the driver.
Position C: amplifier driver board header via the J11 and J12 connectors.
Rev. 0 | Page 6 of 17
EVAL-AD7761FMCZ User Guide
evaluation kit software runs from SPI mode; select the filter
to REFX+.
ADA4841-1 reference buffer.
to REFX+.
ADA4841-1 reference buffer.
AD7761 data sheet.