EVAL-AD7482CB_15 Datasheet, PDF (5/20 Pages) Analog Devices – Evaluation Board for 3 MSPS, 12-Bit SAR ADC

EVAL-AD7482CB
Initial Setup Conditions
Take care before applying power or signals to the evaluation board to ensure that all link positions are as per the required operating mode.
Failure to do this could result in damage to the evaluation board. Table 2 shows the default positions of the links. The board is set up for
use with the evaluation board controller.
Table 2. Initial Link Positions
Link No. Position Function
LK1
B
CONVST input is connected to the 96-way connector.
LK2
A
The bias up voltage is connected to the reference voltage (divided down by R6 and R8).
LK3
IN
1 kΩ series input resistor on the analog input is shorted.
LK4
A
AD829 is used in the analog input bias up circuitry.
LK5
A
AD829 is used in the analog input bias up circuitry.
LK6
B
STBY pin is connected to GND for normal operation.
LK7
B
NAP pin is connected to GND for normal operation.
LK8
A
CLIP pin is tied to DVDD. See the AD7482 data sheet for further details.
LK9
B
The MODE1 input pin is tied to GND. See the AD7482 data sheet for further details.
LK10
A
The MODE2 input pin is tied to DVDD. See the AD7482 data sheet for further details.
LK11
IN
The AD7482 is configured for use with an external +2.5 V reference.
LK12
A
VDRIVE is connected to DVDD.
LK13
A
AD780 selected as source for external reference.
LK14
IN
Reference pins connected to the external reference source.
LK15
IN
Reference pins connected to the external reference source.
LK16
A
DVDD supply sourced from the 96-way edge connector from the EVAL-CONTROL BRD2.
LK17
A
Analog input is taken from the on-board op amps.
LK18
OUT
No 50 Ω termination on the analog input applied to J2.
LK19
A
AVDD supply sourced from the 96-way edge connector from the EVAL-CONTROL BRD2.
LK20
A
+12 V supply sourced from the 96-way edge connector from the EVAL-CONTROL BRD2.
LK21
A
−12 V supply sourced from the 96-way edge connector from the EVAL-CONTROL BRD2.
LK22
B
CS is driven from the 96-way connector on the EVAL-CONTROL BRD2.
LK23
B
RD is driven from the 96-way connector on the EVAL-CONTROL BRD2.
LK24
B
WR is driven from the 96-way connector on the EVAL-CONTROL BRD2.
LK25
N/A
LK26
OUT
No 50 Ω termination on the analog input applied to J3.
Rev. 0 | Page 5 of 20