參數(shù)資料
型號(hào): OP77FJZ
廠商: Analog Devices Inc
文件頁數(shù): 3/16頁
文件大?。?/td> 0K
描述: IC OPAMP GP 600KHZ PREC TO99-8
產(chǎn)品變化通告: OP77 Vos Trims Redesign Change 03/Mar/2011
標(biāo)準(zhǔn)包裝: 1
放大器類型: 通用
電路數(shù): 1
轉(zhuǎn)換速率: 0.3 V/µs
增益帶寬積: 600kHz
電流 - 輸入偏壓: 1.2nA
電壓 - 輸入偏移: 20µV
電壓 - 電源,單路/雙路(±): ±3 V ~ 18 V
工作溫度: -25°C ~ 85°C
安裝類型: 通孔
封裝/外殼: TO-99-8 金屬罐
供應(yīng)商設(shè)備封裝: TO-99-8
包裝: 散裝
產(chǎn)品目錄頁面: 774 (CN2011-ZH PDF)
OP77
Rev. E | Page 11 of 16
APPLICATIONS
00
32
0-
02
8
OP77E
R2
1M
R4
1M
+15V
–15V
R1
1k
R3
1k
7
6
4
2
3
0.1F
Figure 27. Precision High-Gain Differential Amplifier
The high gain, gain linearity, CMRR, and low TCVOS of the
OP77 make it possible to obtain performance not previously
available in single-stage, very high-gain amplifier applications.
For best CMR,
2
R
1
R
must equal
4
R
3
R
. In this example, with a
10 mV differential signal, the maximum errors are as listed in
Table 7. Maximum Errors
Type
Amount
Common-Mode Voltage
0.01%/V
Gain Linearity, Worst Case
0.02%
TCVOS
0.003%/°C
TCIOS
0.008%/°C
00
32
0-
02
9
+15V
–15V
RS
RF
100
7
6
4
2
3
0.1F
10F
OUTPUT
INPUT
CLOAD
OP77
Figure 28. Isolating Large Capacitive Loads
This circuit reduces maximum slew rate but allows driving
capacitive loads of any size without instability. Because the boon
resistor is inside the feedback loop, its effect on output
impedance is reduced to insignificance by the high open-loop
gain of the OP77.
00
32
0-
03
0
R1
100k
R3
1k
R4
990
R5
10
6
2
3
VIN
IOUT < 15mA
R2
100k
OP77
Figure 29. Basic Current Source
00
32
0-
0
31
R1
R3
+15V
–15V
R4
R5
6
2N2222
2N2907
2
3
VIN
R2
OP77
IOUT = VIN
(
)
GIVEN R3 = R4 + R5, R1 = R2
R3
R1 – R5
IOUT < 100mA
Figure 30. 100 mA Current Source
These current sources can supply both positive and negative
current into a grounded load.
Note that
1
R
3
R
2
R
4
R
5
R
2
R
4
R
5
R
Z
O
+
+
=
1
And that for ZO to be infinite
2
R
4
R
5
R +
must =
1
R
3
R
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