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AD8421BRZ-RL Datasheet(PDF) 3 Page - Analog Devices

Part # AD8421BRZ-RL
Description  3 nV/?숰z, Low Power
Download  28 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD8421BRZ-RL Datasheet(HTML) 3 Page - Analog Devices

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Data Sheet
AD8421
Rev. 0 | Page 3 of 28
SPECIFICATIONS
VS = ±15 V, VREF = 0 V, TA = 25°C, G = 1, RL = 2 kΩ, unless otherwise noted.
AR AND BR GRADES
Table 1.
AR Grade
BR Grade
Parameter
Test Conditions/
Comments
Min
Typ
Max
Min
Typ
Max
Unit
COMMON-MODE REJECTION
RATIO (CMRR)
CMRR DC to 60 Hz with 1 kΩ
Source Imbalance
VCM = −10 V to +10 V
G = 1
86
94
dB
G = 10
106
114
dB
G = 100
126
134
dB
G = 1000
136
140
dB
Over Temperature, G = 1
T = −40°C to +85°C
80
93
dB
CMRR at 20 kHz
VCM = −10 V to +10 V
G = 1
80
80
dB
G = 10
90
100
dB
G = 100
100
110
dB
G = 1000
110
120
dB
NOISE
Voltage Noise, 1 kHz1
VIN+, VIN− = 0 V
Input Voltage Noise, eni
3
3.2
3
3.2
nV/√Hz
Output Voltage Noise, eno
60
60
nV/√Hz
Peak to Peak, RTI
f = 0.1 Hz to 10 Hz
G = 1
2
2
2.2
μV p-p
G = 10
0.5
0.5
μV p-p
G = 100 to 1000
0.07
0.07
0.09
μV p-p
Current Noise
Spectral Density
f = 1 kHz
200
200
fA/√Hz
Peak to Peak, RTI
f = 0.1 Hz to 10 Hz
18
18
pA p-p
VOLTAGE OFFSET2
Input Offset Voltage, VOSI
VS = ±5 V to ±15 V
60
25
μV
Over Temperature
TA = −40°C to +85°C
86
45
μV
Average TC
0.4
0.2
μV/°C
Output Offset Voltage, VOSO
350
250
μV
Over Temperature
TA = −40°C to +85°C
0.66
0.45
mV
Average TC
6
5
μV/°C
Offset RTI vs. Supply (PSR)
VS = ±2.5 V to ±18 V
G = 1
90
120
100
120
dB
G = 10
110
120
120
140
dB
G = 100
124
130
140
150
dB
G = 1000
130
140
140
150
dB
INPUT CURRENT
Input Bias Current
1
2
0.1
0.5
nA
Over Temperature
TA = −40°C to +85°C
8
6
nA
Average TC
50
50
pA/°C
Input Offset Current
0.5
2
0.1
0.5
nA
Over Temperature
TA = −40°C to +85°C
2.2
0.8
nA
Average TC
1
1
pA/°C


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