AD5522 查看數據表（PDF） - Analog Devices
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AD5522 Datasheet PDF : 64 Pages
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Data Sheet
AD5522
AGND
AVSS AVDD
DVCC DGND
CCOMP0
VREF
REFGND
MEASOUT0
AGND
CPOL0/SCLK
CPOH0/SDI
CCOMP1
MEASOUT1
CPOL1/SYNC
CPOH1/SDO
AGND
CCOMP2
MEASOUT2
CPOL2/CPO0
CPOH2/CPO1
AGND
CCOMP3
MEASOUT3
AGND
16
16
X1 REG
M REG
16
C REG ×2
16
16
16
X1 REG
M REG
X2 REG
16
16-BIT
CLH DAC
×2
OFFSET DAC
–
×6
16-BIT
16 FIN DAC
+
X2 REG
CH0
CLH
FIN
AGND
SW1
+
FORCE
EN
SW3
INTERNAL RANGE
SELECT
(±5µA, ±20µA, ±200µA, ±2mA)
C REG
×6
MEASVH
(Hi-Z)
AMPLIFIER
–
SW2
SW5
RSENSE
SW4
SW6
4kΩ
16
16 16-BIT
16
X1 REG
16
M REG
C REG ×2
X2 REG
×2
CLL DAC
SW10
VMID TO
CENTER
I RANGE
CLL
+
–
SW8
+
2kΩ SW7
×5 OR ×10
SW12
MEASOUT
MUX AND GAIN
×1/×0.2
TEMP
–
+
–
SW9
4kΩ
SENSOR
MEASURE
16
16
×6
16
X1 REG
M REG
C REG
×6
16 16-BIT
X2 REG CPH DAC
SW11
AGND
CURRENT
IN-AMP
+
–
+
SW13
SW16
16
16
×6
16
X1 REG
M REG
C REG
×6
16-BIT CPL
16 CPL DAC
X2 REG
–+
COMPARATOR
CPH
–+
×1
DUTGND
–
+
SW14
–
MEASURE
VOLTAGE
IN-AMP
GUARD AMP
SW15
10kΩ
AGND
EXTFOH0
CFF0
FOH0
EXTMEASIH0
EXTMEASIL0
MEASVH0
GUARD0
GUARDIN0/
DUTGND0
EXTERNAL
RSENSE
(CURRENTS
UP TO ±80mA)
DUT
DUTGND
CH1
MUX
MUX
EXTFOH1
CFF1
FOH1
EXTMEASIH1
EXTMEASIL1
MEASVH1
GUARD1
GUARDIN1/DUTGND1
SYS_SENSE
SYS_FORCE
EXTFOH2
CFF2
FOH2
CH2
EXTMEASIH2
EXTMEASIL2
MEASVH2
GUARD2
GUARDIN2/DUTGND2
EN
EXTFOH3
16
16
X1 REG
M REG
16
C REG ×2
16
16
16
X1 REG
M REG
C REG
×6
X2 REG
16
16-BIT
CLH DAC
×2
OFFSET DAC
–
×6
16-BIT
16 FIN DAC
+
X2 REG
CLH
CH3
FIN
AGND
SW1
MEASVH
(Hi-Z)
+
FORCE
AMPLIFIER
–
SW2
SW3
INTERNAL RANGE
SELECT
(±5µA, ±20µA, ±200µA, ±2mA)
SW5
RSENSE
SW6
4kΩ
CFF3
FOH3
16
16
X1 REG
16
M REG
C REG ×2
X2 REG
×2
16 16-BIT
CLL DAC
SW10
VMID TO
CENTER
I RANGE
CLL
SW4
+
–
+
SW12
MEASOUT
MUX AND GAIN
x1/x0.2
TEMP
x5 or x10
–
+
–
SENSOR
MEASURE
16
16
×6
16
X1 REG
M REG
C REG
×6
16 16-BIT
X2 REG CPH DAC
SW11
AGND
CURRENT
IN-AMP
+
–
+
16
16
×6
16
X1 REG
M REG
C REG
×6
16
16-BIT
CPL DAC
CPL
X2 REG
–+
CPH
–+
x1
DUTGND
–
+
–
MEASURE
VOLTAGE
COMPARATOR
IN-AMP
2kΩ SW7
4kΩ
SW8
SW9
EXTMEASIH3
EXTMEASIL3
MEASVH3
EXTERNAL
RSENSE
(CURRENTS
UP TO ±80mA)
SW13
SW14
SW16
GUARD AMP
SW15
10kΩ
GUARD3
DUT
GUARDIN3/
DUTGND3
AGND
DUTGND
16-BIT
16 OFFSET
DAC
16
POWER-ON
RESET
TO ALL DAC
OUTPUT
AMPLIFIERS
SERIAL
INTERFACE
SW15a
TO
MEASOUT
MUX
AGND
10kΩ
TEMP
SENSOR
CLAMP AND
GUARD
ALARM
TMPALM
CGALM
RESET SDO SCLK SDI SYNC BUSY LOAD SPI/ CPOL3/ CPOH3/
LVDS CPO2 CPO3
Figure 2. Detailed Block Diagram
Rev. F | Page 5 of 64
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