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AD8290ACPZ-R71 数据表(PDF) 4 Page - Analog Devices

部件名 AD8290ACPZ-R71
功能描述  G = 50, CMOS Sensor Amplifier with Current Excitation
PDF  21 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD8290ACPZ-R71 数据表(HTML) 4 Page - Analog Devices

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AD8290
Rev. B | Page 3 of 20
SPECIFICATIONS
VCC = 2.6 V to 5.0 V, TA = 25°C, CFILTER = 6.8 nF, output antialiasing capacitor = 68 nF, RSET = 3 kΩ, common-mode input = 0.6 V, unless
otherwise noted.
Table 1.
Parameter
Test Conditions
Min
Typ
Max
Unit
COMMON-MODE REJECTION RATIO (CMRR)
Input voltage (VINP − VINN)
range of 0.2 V to VCC − 1.7 V
CMRR DC
110
120
dB
NOISE
Amplifier and VREF
Input referred, f = 0.1 Hz to 10 Hz
0.75
μV p-p
VOLTAGE OFFSET
Output Offset
Reference is internal and set to
900 mV nominal
865
900
935
mV
Output Offset TC
−40°C < TA < +85°C
−300
±50
+300
μV/°C
PSR
120
dB
INPUT CURRENT
Input Bias Current
−1000
±100
+1000
pA
Input Offset Current
−2000
±200
+2000
pA
DYNAMIC RESPONSE
Small Signal Bandwidth –3 dB
With external filter capacitors,
CFILTER = 6.8 nF and output
antialiasing capacitor = 68 nF
0.25
kHz
GAIN
Gain
50
V/V
Gain Error
−1.0
±0.5
+1.0
%
Gain Nonlinearity
±0.0075
%
Gain Drift
−40°C < TA < +85°C
−25
±15
+25
ppm/°C
INPUT
Differential Input Impedance
50||1
MΩ||pF
Input Voltage Range
0.2
VCC − 1.7
V
OUTPUT
Output Voltage Range
VOUT = Gain × (VINP − VINN) +
Output Offset
0.075
VCC − 0.075
V
Output Series Resistance
10 ± 20%
kΩ
CURRENT EXCITATION
Excitation Current Range
Excitation current = 0.9 V/RSET
300
1300
μA
Excitation Current Accuracy
−1.0
+1.0
%
Excitation Current Drift
−40°C < TA < +85°C
−250
±50
+250
ppm/°C
External Resistor for Setting
Excitation Current (RSET)
692
3000
Ω
Excitation Current Power
Supply Rejection
−2.0
+0.2
+2.0
μA/V
Excitation Current Pin Voltage
0
VCC − 1.0
V
Excitation Current Output Resistance
100
MΩ
Required Capacitor from Ground to
Excitation Current Pin (CBRIDGE)
0.1
μF
ENABLE
ENBL High Level
VCC < 2.9 V
VCC − 0.5
VCC
V
VCC > 2.9 V
2.4
VCC
V
ENBL Low Level
GND
0.8
V
Start-Up Time for ENBL
5.0
ms



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