EVAL-ADG788EBZ
EVALUATION BOARD HARDWARE
The ADG788 evaluation board kit contains the following:
POWER SUPPLY
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A fully fitted printed circuit board
A CD containing the ADG788 product data sheet and the
evaluation board data sheet
To operate the ADG788 evaluation board, the user must provide
an external power supply connected to Power Block P1. The
supply voltage range is 1.8 V to 5.5 V for single-supply operation
and ±2.5 V for dual-supply operation. The user can select single-
The evaluation board allows the user to connect the signals that
require switching to the ADG788 switch and control its operation
by using the on-board links or by applying the correct control
signals to the appropriate connectors. The signals present at the
supply operation or dual-supply operation using Link J23, as shown
Table 1. Link J23 Configuration
pins of the ADG788 can be monitored using the test point
provided on the board.
The following sections describe the function of all connectors
Position
A
B
Operation Mode
Single-supply operation
Dual-supply operation (default configuration)
and links.
SWITCH CONTROL
The four input pins, IN1, IN2, IN3, and IN4, control the opera-
tion of the ADG788. Link J8, Link J9, Link J12, and Link J13
control the logic levels applied to these pins and allow the user
to drive these pins with external signals applied to Connector J5
and Connector J11 (the signals have 50 Ω on-board termination
resistors to GND). Table 2 describes the configuration achieved
for each position of these links.
Table 2. Link J8, Link J9, Link J12, and Link J13 Settings
Link
J8
Position
Removed
A
ADG788 Switch Status
S2A to D2 = off, S2B to D2 = on
S2A to D2 = on, S2B to D2 = off
B (default configuration)
Controlled via signal applied to Connector J5_TOP
High: S2A to D2 = on, S2B to D2 = off
Low: S2A to D2 = off, S2B to D2 = on
J9
Removed
A
S3A to D3 = off, S3B to D3 = on
S3A to D3 = on, S3B to D3 = off
B (default configuration)
Controlled via signal applied to Connector J5_BOTTOM
High: S3A to D3 = on, S3B to D3 = off
Low: S3A to D3 = off, S3B to D3 = on
J12
Removed
S1A to D1 = off, S1B to D1 = on
A (default configuration)
B
Controlled via signal applied to Connector J11_BOTTOM
S1A to D1 = on, S1B to D1 = off
High: S1A to D1 = on, S1B to D1 = off
Low: S1A to D1 = off, S1B to D1 = on
J13
Removed
S4A to D4 = off, S4B to D4 = on
A (default configuration)
B
Controlled via signal applied to Connector J11_TOP
S4A to D4 = on, S4B to D4 = off
Rev. 0 | Page 3 of 8
High: S4A to D4 = on, S4B to D4 = off
Low: S4A to D4 = off, S4B to D4 = on
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