Datasheet

UG-253 Evaluation Board User Guide
Rev. A | Page 4 of 16
SOCKETS/CONNECTORS
There are 16 SMB input sockets relevant to the operation of the AD7291 on this evaluation board. The functions of these sockets are
outlined in Table 2.
Table 2. Socket/Connector Functions
Socket Function
BIASED_VIN2 SMB socket for the output of the bias up circuit
BUFF_V0 SMB socket for the buffered V0 input (SL3 must be in Position A and SL4 must be in Position B)
BUFF_V7 SMB socket for the buffered V7 input (SL1 must be in Position A)
EXT_OFFSET SMB socket for an external bias input, which is applied to U10
J3 V0 SMB socket for a single-ended input that is applied to the V
IN0
pin of the AD7291
J4 V1 SMB socket for a single-ended input that is applied to the V
IN1
pin of the AD7291
J5 V6 SMB socket for a single-ended input that is applied to the V
IN6
pin of the AD7291
J6 V7 SMB socket for a single-ended input that is applied to the V
IN7
pin of the AD7291
J8 V2 SMB socket for a single-ended input that is applied to the V
IN2
pin of the AD7291
J9 V3 SMB socket for a single-ended input that is applied to the V
IN3
pin of the AD7291
J10 V4 SMB socket for a single-ended input that is applied to the V
IN4
pin of the AD7291
J11 V5 SMB socket for a single-ended input that is applied to the V
IN5
pin of the AD7291
J12 SMB socket connected to the V
REF
pin of the AD7291 (by default the internal reference is used)
J13
SMB socket connected to the PD/RST pin of the AD7291
VIN SMB socket to connect input to the bias-up circuit
VREF_BUFF SMB socket for the output of the buffered reference