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参数资料
| 型号： | AD8420BRMZ-R7 |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 测量放大器 |
| 英文描述： | INSTRUMENTATION AMPLIFIER, PDSO8 |
| 封装： | ROHS COMPLIANT, MO-187AA, MSOP-8 |
| 文件页数： | 2/10页 |
| 文件大小： | 249K |
| 代理商： | AD8420BRMZ-R7 |
AD8420
Preliminary Technical Data
SPECIFICATIONS
+V
S
=
+
5V, V
S
= 0V, V
REF
= 0 V, V
IN+
=0V, V
IN-
=0V, T
A
= 25°C, G = 1 to 1000, R
L
= 20 kΩ, specifications referred to input, unless
otherwise noted
Rev. PrD | Page 2 of 2
Table 2.
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
Conditions
V
CM
= 0 V to 2.7 V
f = 1 kHz, V
DIFF
≤100 mV
f = 0.1 Hz to 10 Hz, V
DIFF
≤ 100 mV
f = 1 kHz
f = 0.1 Hz to 10 Hz
Min
100
Typ
50
1.5
Max
Unit
dB
dB
nV/√Hz
μV p-p
fA/√Hz
pA p-p
Offset
Average Temperature Coefficient
Offset RTI vs. Supply (PSR)
INPUTS
Input Bias Current
1
Average Temperature Coefficient
Input Offset Current
Average Temperature Coefficient
Input Impedance
Differential
Common Mode
Differential Input Operating Voltage
Input Operating Voltage (+IN, -IN, or REF)
DYNAMIC RESPONSE
Small Signal –3 dB Bandwidth
G = 1
G = 10
G = 100
G =1000
Settling Time 0.01%
G = 10
G = 100
G = 1000
Slew Rate
T
A
= 40°C to +85°C
Valid for REF & FB pair, as well as +IN & -IN
T
A
= +25°C
T
A
= +85°C
T
A
= 40°C
T
A
= 40°C to +85°C
T
A
= +25°C
T
A
= +85°C
T
A
= 40°C
T
A
= 40°C to +85°C
T
A
= –40°C to +85°C
T
A
= +25°C
T
A
= +85°C
T
A
= –40°C
4 V step
-1
V
S
– 0.15
V
S
– 0.05
V
S
– 0.2
25
1
130||2
1000||2
250
25
2.5
0.25
200
1
40
1
+V
S
2.2
+V
S
– 1.8
+V
S
– 2.7
μV
μV/°C
dB
nA
nA
nA
pA/°C
nA
nA
nA
pA/°C
MΩ||pF
MΩ||pF
V
V
V
V
kHz
kHz
kHz
kHz
μs
μs
μs
V/μs
Exceeds Bandwidth Limit
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