参数资料
型号: AD8420ARMZ-RL
厂商: Analog Devices Inc
文件页数: 24/28页
文件大小: 0K
描述: IC AMP INSTR RR 2.5KHZ 8MSOP
标准包装: 3,000
放大器类型: 仪表
电路数: 1
输出类型: 满摆幅
转换速率: 1 V/µs
-3db带宽: 250kHz
电流 - 输入偏压: 20nA
电压 - 输入偏移: 250µV
电流 - 电源: 85µA
电流 - 输出 / 通道: 10mA
电压 - 电源,单路/双路(±): 2.7 V ~ 36 V,±2.7 V ~ 18 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-MSOP
包装: 带卷 (TR)
Data Sheet
AD8420
Rev. 0 | Page 5 of 28
+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
Test Conditions/Comments
Min
Typ
Max
Unit
COMMON-MODE REJECTION RATIO (CMRR)
VCM = 10 V to +10 V
CMRR DC to 60 Hz
100
dB
CMRR at 1 kHz
100
dB
NOISE
Voltage Noise
Spectral Density
f = 1 kHz, VDIFF ≤ 100 mV
55
nV/√Hz
Peak to Peak
f = 0.1 Hz to 10 Hz, VDIFF ≤ 100 mV
1.5
μV p-p
Current Noise
Spectral Density
f = 1 kHz
80
fA/√Hz
Peak to Peak
f = 0.1 Hz to 10 Hz
3
pA p-p
VOLTAGE OFFSET
Offset
VS = ±15 V1
250
μV
Average Temperature Coefficient
TA = 40°C to +85°C
1
μV/°C
Offset RTI vs. Supply (PSR)
VS = ±15 V
100
dB
INPUTS
Valid for REF and FB pair, as well
as +IN and IN
Input Bias Current2
TA = +25°C
20
27
nA
TA = +85°C
24
nA
TA = 40°C
30
nA
Average Temperature Coefficient
TA = 40°C to +85°C
30
pA/°C
Input Offset Current
TA = +25°C
1
nA
TA = +85°C
1
nA
TA = 40°C
1
nA
Average Temperature Coefficient
TA = 40°C to +85°C
0.5
pA/°C
Input Impedance
Differential
130||3
MΩ||pF
Common Mode
1000||3
MΩ||pF
Differential Input Operating Voltage
TA = 40°C to +85°C
1
V
Input Operating Voltage (+IN, IN, REF, or FB)
TA = +25°C
VS 0.15
+VS 2.2
V
TA = +85°C
VS 0.05
+VS 1.8
V
TA = 40°C
VS 0.2
+VS 2.7
V
DYNAMIC RESPONSE
Small Signal 3 dB Bandwidth
G = 1
250
kHz
G = 10
25
kHz
G = 100
2.5
kHz
G =1000
0.25
kHz
Settling Time 0.01%
G = 1
1 V to +1 V output step
3
μs
G = 10
5 V to +5 V output step
130
μs
G = 100
5 V to +5 V output step
1
ms
Slew Rate
1
V/μs
GAIN3
G = 1 + (R2/R1)
Gain Range
1
1000
V/V
Gain Error
G = 1
VOUT = ±1 V
0.02
%
G = 10 to 1000
VOUT = ±10 V
0.05
0.1
%
Gain vs. Temperature
TA = 40°C to +85°C
10
ppm/°C
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