參數(shù)資料
型號(hào)： AD8421BRZ-RL
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 24/28頁(yè)
文件大?。?/td> 0K
描述： IC OPAMP INST 10MHZ LP LN 8MSOP
標(biāo)準(zhǔn)包裝： 2,500
放大器類型： 儀表
電路數(shù)： 1
轉(zhuǎn)換速率： 35 V/µs
-3db帶寬： 10MHz
電流 - 輸入偏壓： 100pA
電壓 - 輸入偏移： 25µV
電流 - 電源： 2mA
電流 - 輸出 / 通道： 65mA
電壓 - 電源，單路/雙路(±)： 5 V ~ 36 V，±2.5 V ~ 18 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SOICN
包裝： 帶卷 (TR)
Data Sheet
AD8421
Rev. 0 | Page 5 of 28
AR Grade
BR Grade
Parameter
Test Conditions/
Comments
Min
Typ
Max
Min
Typ
Max
Unit
POWER SUPPLY
Operating Range
Dual supply
±2.5
±18
±2.5
±18
V
Single supply
5
36
5
36
V
Quiescent Current
2
2.3
2
2.3
mA
Over Temperature
TA = 40°C to +85°C
2.6
mA
TEMPERATURE RANGE
For Specified Performance
40
+85
40
+85
°C
Operational5
40
+125
40
+125
°C
1 Total voltage noise = √(eni2 + (eno/G)2 + eRG2). See the Th
section for more information.
2 Total RTI VOS = (VOSI) + (VOSO/G).
3 These specifications do not include the tolerance of the external gain setting resistor, RG. For G > 1, add RG errors to the specifications given in this table.
4 Input voltage range of the AD8421 input stage only. The input range can depend on the common-mode voltage, differential voltage, gain, and reference voltage.
See the
section for more details.
5 See the
section for expected operation between 85°C and 125°C.
ARM AND BRM GRADES
Table 2.
ARM Grade
BRM 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
84
92
dB
G = 10
104
112
dB
G = 100
124
132
dB
G = 1000
134
140
dB
Over Temperature, G = 1
TA = 40°C to +85°C
80
90
dB
CMRR at 20 kHz
VCM = 10 V to +10 V
G = 1
80
dB
G = 10
90
dB
G = 100
100
dB
G = 1000
100
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
nV/√Hz
Peak to Peak, RTI
f = 0.1 Hz to 10 Hz
G = 1
2
2.2
μV p-p
G = 10
0.5
μV p-p
G = 100 to 1000
0.07
0.09
μV p-p
Current Noise
Spectral Density
f = 1 kHz
200
fA/√Hz
Peak to Peak, RTI
f = 0.1 Hz to 10 Hz
18
pA p-p
VOLTAGE OFFSET2
Input Offset Voltage, VOSI
VS = ±5 V to ±15 V
70
50
μV
Over Temperature
TA = 40°C to +85°C
135
μV
Average TC
0.9
μV/°C
Output Offset Voltage, VOSO
600
400
μV
Over Temperature
TA = 40°C to +85°C
1
mV
Average TC
9
μV/°C
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