+VS = +
參數(shù)資料
型號: AD8420ARMZ-RL
廠商: Analog Devices Inc
文件頁數(shù): 22/28頁
文件大?。?/td> 0K
描述: IC AMP INSTR RR 2.5KHZ 8MSOP
標(biāo)準(zhǔn)包裝: 3,000
放大器類型: 儀表
電路數(shù): 1
輸出類型: 滿擺幅
轉(zhuǎn)換速率: 1 V/µs
-3db帶寬: 250kHz
電流 - 輸入偏壓: 20nA
電壓 - 輸入偏移: 250µV
電流 - 電源: 85µA
電流 - 輸出 / 通道: 10mA
電壓 - 電源,單路/雙路(±): 2.7 V ~ 36 V,±2.7 V ~ 18 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 8-MSOP
包裝: 帶卷 (TR)
Data Sheet
AD8420
Rev. 0 | Page 3 of 28
SPECIFICATIONS
+VS = +5 V, VS = 0 V, VREF = 0 V, V+IN = 0 V, VIN = 0 V, TA = 25°C, G = 1 to 1000, RL = 20 kΩ, specifications referred to input, unless
otherwise noted. All Table 2 limits are valid from VS = 3 V to VS = ±5 V, unless otherwise specified.
Table 2.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
COMMON-MODE REJECTION RATIO (CMRR)
VCM = 0 V to 2.7 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 = 3 V to VS = 5 V
125
μV
VS = ±5 V
150
μV
Average Temperature Coefficient
TA = 40°C to +85°C
1
μV/°C
Offset RTI vs. Supply (PSR)
VS = 2.7 V to 5 V
86
dB
INPUTS
Valid for REF and FB pair, as well
as +IN and IN
Input Bias Current1
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||2
MΩ||pF
Common Mode
1000||2
MΩ||pF
Differential Input Operating Voltage
TA = –40°C to +85°C
1
+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%
VS = ±5 V
G = 1
1 V to +1 V output step
3
μs
G = 10
4.5 V to +4.5 V output step
130
μs
G = 100
4.5 V to +4.5 V output step
1
ms
Slew Rate
1
V/μs
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