AD8420 데이터 시트보기 (PDF) - Analog Devices
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AD8420 Datasheet PDF : 26 Pages
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Data Sheet
AD8420
+VS = +15 V, −VS = −15 V, VREF = 0 V, TA = 25°C, G = 1 to 1000, RL = 20 kΩ, specifications referred to input, unless otherwise noted.
Table 3.
Parameter
COMMON-MODE REJECTION RATIO (CMRR)
CMRR DC to 60 Hz
CMRR at 1 kHz
NOISE
Voltage Noise
Spectral Density
Peak to Peak
Current Noise
Spectral Density
Peak to Peak
VOLTAGE OFFSET
Offset
Average Temperature Coefficient
Offset RTI vs. Supply (PSR)
INPUTS
Input Bias Current2
Average Temperature Coefficient
Input Offset Current
Average Temperature Coefficient
Input Impedance
Differential
Common Mode
Differential Input Operating Voltage
Input Operating Voltage (+IN, −IN, REF, or FB)
DYNAMIC RESPONSE
Small Signal −3 dB Bandwidth
G=1
G = 10
G = 100
G =1000
Settling Time 0.01%
G=1
G = 10
G = 100
Slew Rate
GAIN3
Gain Range
Gain Error
G=1
G = 10 to 1000
Gain vs. Temperature
Test Conditions/Comments
Min
Typ
Max
Unit
VCM = −10 V to +10 V
92
dB
92
dB
f = 1 kHz, VDIFF ≤ 100 mV
f = 0.1 Hz to 10 Hz, VDIFF ≤ 100 mV
f = 1 kHz
f = 0.1 Hz to 10 Hz
VS = ±15 V1
TA = −40°C to +85°C
VS = ±15 V
Valid for REF and FB pair, as well
as +IN and −IN
TA = +25°C
TA = +85°C
TA = −40°C
TA = −40°C to +85°C
TA = +25°C
TA = +85°C
TA = −40°C
TA = −40°C to +85°C
TA = −40°C to +85°C
TA = +25°C
TA = +85°C
TA = −40°C
55
1.5
80
3
250
1
100
20
27
24
30
30
1
1
1
0.5
−1
−VS − 0.15
−VS − 0.05
−VS − 0.2
130||3
1000||3
1
+VS − 2.2
+VS − 1.8
+VS − 2.7
nV/√Hz
μV p-p
fA/√Hz
pA p-p
μV
μV/°C
dB
nA
nA
nA
pA/°C
nA
nA
nA
pA/°C
MΩ||pF
MΩ||pF
V
V
V
V
−1 V to +1 V output step
−5 V to +5 V output step
−5 V to +5 V output step
G = 1 + (R2/R1)
VOUT = ±1 V
VOUT = ±10 V
TA = −40°C to +85°C
250
kHz
25
kHz
2.5
kHz
0.25
kHz
3
μs
130
μs
1
ms
1
V/μs
1
1000
V/V
0.02
0.05
0.1
10
%
%
ppm/°C
Rev. A | Page 5 of 26
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