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AD8556CP-EBZ 用户编程技术手册 - ADI（亚德诺）
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AD8556CP-EBZ数据手册
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Digitally Programmable Sensor Signal
Amplifier with EMI Filters
Data Sheet
AD8556
FEATURES
EMI filters at input pins
Specified from −40°C to +140°C
Low offset voltage: 10 µV maximum
Low input offset voltage drift:
65 nV/°C maximum
High CMRR: 94 dB minimum
Digitally programmable gain and output offset voltage
Programmable output clamp voltage
Open and short wire fault detection
Low-pass filtering
Single-wire serial interface
Stable with any capacitive load
SOIC_N and LFCSP_WQ packages
4.5 V to 5.5 V operation
APPLICATIONS
Pressure and position sensors
Precision current sensing
Strain gages
FUNCTIONAL BLOCK DIAGRAM
05448-053
VDD
VSS
1
2
3
+IN
–IN
OUT
A3
VDD
VSS
1
2
3
+IN
–IN
OUT
A4
V
OUT
VDD
VSS
1
2
3
+IN
–IN
OUT
A2
VDD
VSS
1
2
3
+IN
–IN
OUT
A1
VSS
1
2
3
+IN
–IN
OUT
A5
R7P4R5
VDDDIGIN
VCLAMP
R3
P2
P1
R1
R2
R4 R5
P3
VNEG
VPOS
DAC
LOGIC
EMI
FILTER
EMI
FILTER
EMI
FILTER
RF
EMI
FILTER
FILT/DIGOUT
AD8556
VSS
EMI
FILTER
F
igure 1.
Re
v. B
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