Datasheet

FUNCTIONAL BLOCK DIAGRAM
R
FB1
R
FB2
ControlLogic
Analog Monitor
ToDAC-0,
DAC-1
ToDAC-2,DAC-3
AIN
DAC8234
R -1
FB1
R -1
FB2
V -1
OUT
SGND-1
V
MON
R -0
FB1
R -0
FB2
V -0
OUT
SGND-0
GPIO-1
GPIO-0
REF-B
Reference
BufferB
Reference
BufferA
DAC-0
Latch-0
Power-On/
Power-Down
Control
(SameFunctionBlocksforAllChannels)
REFGND-B
REF-A REFGND-A
LDAC
LDAC
Power-On/
Power-DownControl
UNI/BIP-B
UNI/BIP-A
RST
SPIShiftRegister
SDO
SDI
SCLK
CS
IOV
DD
DGND AGNDDV
DD
AV
DD
AV
SS
AIN
R -0
FB1
R -1
FB1
R -2
FB1
R -3
FB1
Mux
Command
Register
InputData
Register0
UserCalibration:
ZeroRegister0
GainRegister0
InternalTrimming
Zero,Gain,INL
DAC-1
R -2
FB1
R -2
FB2
V -2
OUT
SGND-2
DAC-2
R -3
FB1
R -3
FB2
V -3
OUT
SGND-3
DAC-3
DAC8234
SBAS464A – AUGUST 2009 – REVISED SEPTEMBER 2009 ........................................................................................................................................... www.ti.com
6 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): DAC8234