EVAL-AD7992_15 Datasheet, PDF (3/12 Pages) Analog Devices – Evaluation Board for the 2-Channel, 12-Bit ADC with I2C-Compatible Interface

EVAL-AD7992
EVALUATION BOARD HARDWARE
POWER SUPPLIES
The EVAL-AD7992 is powered via the 5 V supply from the USB
connector, J1. The 5 V supply can be used to power the AD7992
directly through the EMC_FILTER. A regulated voltage from
the on-board ADP3303, a high precision, low power, 3.3 V output
voltage regulator, can also be used.
To select the power supply for the AD7992, choose LK7.
INITIAL SETUP CONDITIONS
Care should be taken before applying power and signals to the
evaluation board to ensure that all link positions are set as
required by the operating mode.
Table 1 shows the positions in which all the links are set when
the evaluation board is shipped.
Table 1. Initial Link Positions
Link No.
Position
LK1
A
LK2
A
LK3
A
LK4
A
LK5
A
LK6
A
LK7
A
LK8
Insert
Function
VIN1 is connected to digital Potentiometer 1.
The operational amplifier is supplied from J1 (Channel 1).
The operational amplifier is used on Channel 1.
VIN2 is connected to digital Potentiometer 2.
The operational amplifier is supplied from J1 (Channel 2).
The operational amplifier is used on Channel 2.
The power source of the AD7992 is set to 5 V (J1 connector).
External reference voltage has a value of 3 V.
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