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AD8208WBRZ-R7 数据表(PDF) 3 Page - Analog Devices

部件名 AD8208WBRZ-R7
功能描述  High Voltage, Precision Difference Amplifier
PDF  20 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD8208WBRZ-R7 数据表(HTML) 3 Page - Analog Devices

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Data Sheet
AD8208
Rev. C | Page 3 of 20
SPECIFICATIONS
TOPR = −40°C to +125°C for AD8208WBR and AD8208WBRM grade, TOPR = −40°C to +150°C for AD8208WHR grade, TA = 25°C, VS =
5 V, RL = 25 kΩ (RL is the output load resistor), unless otherwise noted. Specifications applicable for both packages (SOIC and MSOP).
Table 1.
Parameter
Test Conditions1
Min
Typ
Max
Unit
SYSTEM GAIN
Initial
20
V/V
Error vs. Temperature
0.075 V ≤ VOUT ≤ (VS − 0.1 V), dc, TOPR
±0.3
%
Gain Drift
TOPR
0
−20
ppm/°C
VOLTAGE OFFSET
Initial Input Offset (Referred to Input [RTI])
VCM = 0.15 V, TA
±2
mV
Input Offset (RTI) Over Temperature
VCM = 0 V, TOPR
±4
mV
Voltage Offset vs. Temperature
VCM = 0 V, TOPR
−20
+20
µV/°C
INPUT
Input Impedance
Differential
360
400
440
kΩ
Common Mode
180
200
220
kΩ
VCM (Continuous)
−2
+45
V
CMRR2
VCM = −2 V to +45 V, dc
80
100
dB
f = dc to 10 kHz,3 TOPR
80
dB
PREAMPLIFIER (A1)
Gain
10
V/V
Gain Error
0.05 V ≤ VOUT ≤ (VS − 0.1 V), dc, TOPR
−0.3
+0.3
%
Output Voltage Range
AD8208WBR, AD8208WBRM
0.0375
VS − 0.1
V
AD8208WHR, AD8208WHRM
0.05
VS − 0.1
V
Output Resistance
97
100
103
kΩ
OUTPUT BUFFER (A2)
Gain
2
V/V
Gain Error
0.075 V ≤ VOUT ≤ (VS − 0.1 V), dc, TOPR
−0.3
+0.3
%
Output Voltage Range4, 5
RL = 25 kΩ, differential Input (V) = 0 V, TOPR
Pin 3 (A1 output) driving Pin 4 (A2 input)
AD8208WBR, AD8208WBRM
0.075
VS − 0.1
V
AD8208WHR, AD8208WHRM
0.1
VS − 0.12
V
Output Voltage Range6
Pin 4 (A2 input) driven with external source
AD8208WBR, AD8208WBRM
0.075
VS − 0.1
V
AD8208WHR, AD8208WHRM
0.1
VS − 0.12
V
Input Bias Current
TOPR
50
nA
Output Resistance
RL = 1 kΩ, frequency = dc
2
Ω
DYNAMIC RESPONSE
System Bandwidth
VIN = 0.01 V p-p, VOUT = 0.14 V p-p
70
kHz
Slew Rate
VIN = 0.28 V, VOUT = 4 V step
1
V/µs
NOISE
0.1 Hz to 10 Hz
20
µV p-p
Spectral Density, 1 kHz (RTI)
500
nV/√Hz
POWER SUPPLY
Operating Range
4.5
5.5
V
Quiescent Current
Typical, TA
1.6
mA
Quiescent Current vs. Temperature
VOUT = 0.1 V dc, VS = 5 V, TOPR
AD8208WBR, AD8208WBRM
2.7
mA
AD8208WHR, AD8208WHRM
3.0
mA
PSRR
VS = 4.5 V to 5.5 V, TOPR
66
80
dB



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