参数资料
型号: OP270EZ
厂商: Analog Devices Inc
文件页数: 5/20页
文件大小: 0K
描述: IC OPAMP GP 5MHZ DUAL PREC 8CDIP
标准包装: 48
放大器类型: 通用
电路数: 2
转换速率: 2.4 V/µs
增益带宽积: 5MHz
电流 - 输入偏压: 5nA
电压 - 输入偏移: 10µV
电流 - 电源: 4mA
电压 - 电源,单路/双路(±): ±4.5 V ~ 18 V
工作温度: -40°C ~ 85°C
安装类型: 通孔
封装/外壳: 8-CDIP(0.300",7.62mm)
供应商设备封装: 8-CERDIP
包装: 管件
产品目录页面: 772 (CN2011-ZH PDF)
OP270
Rev. E | Page 13 of 20
For reference, typical source resistances of some signal sources are listed in Table 5.
Table 5. Typical Source Resistances
Device
Source Impedance
Comments
Strain Gage
<500 Ω
Typically used in low frequency applications.
Magnetic Tapehead, Microphone
<1500 Ω
Low IB is very important to reduce self-magnetization problems when
direct coupling is used. OP270 IB can be disregarded.
Magnetic Phonograph Cartridge
<1500 Ω
Low IB is important to reduce self-magnetization problems in direct-coupled
applications. OP270 does not introduce any self-magnetization problem
s.
Linear Variable Differential Transformer
<1500 Ω
Used in rugged servo-feedback applications. The bandwidth of interest is
400 Hz to 5 kHz.
00
32
5-
0
36
OP270
DUT
R1
5
R2
5
R3
1.24k
OP27E
R5
909
R4
200
R13
5.9k
R12
10k
OP27E
OP42E
R9
306
R10
65.4k
R11
65.4k
R8
10k
C1
2F
C4
0.22F
D1, D2
1N4148
R6
600
C2
0.032F
C3
0.22F
C5
1F
R14
4.99k
eOUT
GAIN = 50,000
VS = ±15V
Figure 35. Peak-to-Peak Voltage Noise Test Circuit (0.1 Hz to 10 Hz)
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