Eval-Ad7124-4Sdz Block Diagram - Analog Devices EVAL-AD7124-4SDZ User Manual

EVAL-AD7124-4SDZ User Guide
EVAL-AD7124-4SDZ
7V TO 9V
V
IN
AV
DD
1.9V
LDO
ON-BOARD
NOISE TEST
AIN0 TO AIN1
AIN0/IOUT/VBIAS
AIN1/IOUT/VBIAS
AIN2/IOUT/VBIAS/P1
AIN3/IOUT/VBIAS/P2
AIN4/IOUT/VBIAS
AIN5/IOUT/VBIAS
AIN6/IOUT/VBIAS/REFIN2(+)
AIN7/IOUT/VBIAS/REFIN2(–)
TEMPERATURE
PSW
POWER
SWITCH
AV
SS
NOTES
1. FOR SIMPLICITY, DECOUPLING NOT SHOWN.
BLOCK DIAGRAM
GND GND
ADP1720
3.3V OUTPUT
IN GND
OUT GND
EN
GND
REGCAPA
BANDGAP
V
BIAS
REF
CROSSPOINT
MUX
AV
DD
BURNOUT
PGA1
DETECT
X-MUX
AV
SS
AV
SENSOR
DIAGNOSTICS
EXCITATION
CURRENTS
27kΩ
NC
TP
ADR4525
57.6kΩ
2.5V OUTPUT
IN NC
NC VOUT
GND
NC
REFOUT REFIN1(+)
AV
AV
DD
SS
AV
SS
BUF
VARIABLE
24-BIT
PGA2 Σ-Δ
ADC
BUF
ANALOG
CHANNEL
BUFFERS
SEQUENCER
GPOs
DIAGNOSTICS
DD
COMMUNICATIONS
POWER SUPPLY
SIGNAL CHAIN
DIGITAL
AV DGND
SS
Figure 1.
Rev. 0 | Page 3 of 29
ADP1720ARMZ-R7
1.8V OUTPUT
ADJ
GND
IN
GND
OUT
GND
EN
GND
IOV
REFIN1(–) REGCAPD
DD
REFIN2(+)
1.8V
REFIN2(–)
LDO
REFERENCE
BUFFERS
DOUT/RDY
SERIAL
DIN
INTERFACE
DIGITAL
AND
FILTER
SCLK
CONTROL
LOGIC
CS
SYNC
INTERNAL
CLK
CLOCK
AD7124-4
UG-855
SDP-B
ADSP-BF527
POWER
LED
STATUS
USB