UG-851 Datasheet, PDF (4/15 Pages) Analog Devices – EVAL-AD7606SDZ/EVAL-AD7607SDZ/EVAL-AD7608SDZ User Guide

UG-851
EVAL-AD7606SDZ/EVAL-AD7607SDZ/EVAL-AD7608SDZ User Guide
EVALUATION BOARD HARDWARE
DEVICE DESCRIPTION
The AD7606/AD7606-6/AD7606-4/AD7607/AD7608 ADCs
are 16-bit, 8-/6-/4-channel, simultaneous sampling successive
approximation ADCs. The devices operate from a single 2.7 V
to 5.25 V power supply and feature throughput rates of up to
200 kSPS. The devices have on-board 1 MΩ input buffers
meaning direct connection from sensor to ADC.
Full data on the AD7606/AD7606-6/AD7606-4/
AD7607/AD7608 is available in the AD7606/AD7606-6/
AD7606-4/AD7607/AD7608 data sheets, which should be
consulted in conjunction with this user guide when using the
evaluation board. Full details on the EVAL-SDP-CB1Z are
available at the SDP board product page.
HARDWARE LINK OPTIONS
The functions of the link options are described in Table 3. The
default setup is configured to operate the evaluation board with
the main power supply or 9 V adapter and to interface to the SDP
board.
POWER SUPPLIES
Before applying power and signals to the evaluation board,
ensure that all link positions are set according to the required
operating mode. See Table 3 for the complete list of link options.
The AD7606/AD7606-6/AD7606-4/AD7607/AD7608
evaluation board is supplied with a wall-mountable switching
power supply that provides 9 V dc output. Connect the supply
to a 100 V to 240 V ac wall outlet at 50 Hz to 60 Hz. The output
from the supply is provided through a 2.0 mm inner diameter
jack that connects to the evaluation board at J1. The 9 V supply
is connected to the on-board, 5 V linear regulator that supplies
the correct bias to each of the various sections on the evaluation
board and on the EVAL-SDP-CB1Z SDP board.
When using the EVAL-AD7606SDZ/EVAL-AD7606-6SDZ/
EVAL-AD7606-4SDZ/EVAL-AD7607SDZ/EVAL-AD7608SDZ
evaluation board with the EVAL-SDP-CB1Z SDP board, power
the evaluation board through the J1 connector.
If the evaluation board is used without the 9 V adapter, an
external power supply in the range 7 V to 9 V must be
connected to J3 to supply the ADP7104 5 V linear regulator.
Each supply is decoupled on this evaluation board using 10 µF
tantalum and 100 nF multilayer ceramic capacitors.
Table 1. External Power Supplies Required
Power
Supply
Voltage
Range
Description
DC Jack
7 V to 9 V ± 5% Supplies power to on-board
power management devices
J3
7 V to 9 V
Digital logic supply
SOCKETS/CONNECTORS
The connectors and sockets on the evaluation board are
outlined in Table 2.
Table 2. On-Board Connectors
Connector Function
J1
7 V to 9 V, 2.0 mm dc jack connector
J2
120-way connector for EVAL-SDP-CB1Z interface
J3
External power connector, 7 V to 9 V dc input
V1 to V8
Analog input terminal block.
The default interface to this evaluation board is via the 120-way
connector, which connects the AD7606/AD7606-6/AD7606-4/
AD7607/AD7608 evaluation board to the EVAL-SDP-CB1Z
SDP board.
CHANNEL INPUT
Depending on the board, the external signal can be applied to
V1 to V8.
AD7606/AD7607/AD7608
The AD7606/AD7607/AD7608 are 8-channel data acquisition
systems (DAS) with simultaneous sampling ADC. An external
signal can be applied to V1 to V8.
AD7606-6
The AD7606-6 is a 6-channel DAS with simultaneous sampling
ADC. An external signal can be applied to V1 to V3 and V5 to
V7. V5 to V7 match V4 to V6.
AD7606-4
The AD7606-4 is an 4-channel DAS with simultaneous
sampling ADC. An external signal can be applied to V1 to
V2 and V5 to V6.
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