Datasheet

ControlLogic
An ogal Monit ro
ToDAC-0,DAC-1,
DAC-2,DAC-3
ToDAC-0,DAC-1,
DAC-2,DAC-3
ToDAC-4,DAC-5,DAC-6,DAC-7
DAC8218
OFFSET-B
AGND-B
V -7
OUT
V
MON
OFFSET-A
AGND-A
REF-B
Reference
BufferB
InternalTrimming
Zero/Gain;INL
Reference
BufferA
OFFSET
DACA
OFFSET
DACB
DAC-0
Latch-0
Power-Up/
Power-Down
Control
(SameFunctionBlocks
forAllChannels)
REF-A
LDAC
RST
RSTSEL
LDAC
CLR
USB/BTC
AIN-0
AIN-1
GPIO-0
GPIO-1
GPIO-2
SDO
SDI
CS
SCLK
WAKEUP
SPIShiftRegister
IOV
DD
DGND DV
DD
AV
DD
AV
SS
DGND DV
DD
AV
DD
AV
SS
V -0
OUT
V -7
OUT
AIN-0
AIN-1
RefBufferA
RefBufferB
OFFSET-B
Mux
Command
Registers
InputData
Register0
Correction
Engine
(WhenCorrectionEngineDisabled)
DAC-0
Data
UserCalibration:
ZeroRegister0
GainRegsiter0
V -0
OUT
DAC8218
SBAS460A –MAY 2009–REVISED DECEMBER 2009 www.ti.com
FUNCTIONAL BLOCK DIAGRAM
Figure 1. Functional Block Diagram
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