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參數(shù)資料
| 型號： | OPA660 |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Wide Bandwidth OPERATIONAL TRANSCONDUCTANCE AMPLIFIER AND BUFFER |
| 中文描述： | 寬帶運(yùn)算跨導(dǎo)放大器和緩沖 |
| 文件頁數(shù)： | 12/18頁 |
| 文件大?。?/td> | 358K |
| 代理商： | OPA660 |
12
OPA660
20
20
20
25
V
OUT
V
IN
1
40.2
R
2
100k
CCII
B
E
C
2
8
3
D
1
, D
2
= 1N4148
R
Q
= 1k
The OTA amplifier works as a current conveyor
(CCII) in this circuit, with a current gain of 1.
R
1
and C
1
set the DC restoration time constant.
D
1
adds a propagation delay to the DC restoration.
R
2
and C
1
set the decay time constant.
OPA650
C
100pF
D
1
D
2
+1
5
6
Use low-inductance components. Some film resistors are
trimmed with spiral cuts which increase inductance.
Use surface-mount components—they generally provide
the lowest inductance.
A resistor (25
to 200
) in series with the buffer and/or
B input may help reduce oscillations and peaking.
Use series resistors in the supply lines to decouple mul-
tiple devices.
OTA
V
I
B
E
2
C
V
O
R
5
22
3
8
5
6
R
4
200
R = 250 (I 20mA)
G = 1 + R
4
R
5
+1
≈
R
2
R
1
47
C
1
56
FIGURE 10. Current-Feedback Amplifier Frequency
Response, G = 10.
FIGURE 9. Current-Feedback Amplifier.
15
10
5
0
–5
–10
–15
–20
–25
–30
1M
10M
100M
1G
Frequency (Hz)
O
OPA660 CURRENT-FEEDBACK
I
Q
= 20mA R
1
= 47
R
2
= 56
R
4
= 200
R
5
= 22
Gain = 10
20
2.8Vp-p
0.6Vp-p
1.4Vp-p
5Vp-p
0.2Vp-p
–3dB Point
100k
FIGURE 12. High Speed Current Driver (bridge combina-
tion for increased output voltage capability).
FIGURE 13. Cable Amplifier.
OTA
V
I
B
E
2
C
V
O
R
E
42
3
8
5
6
+1
150
150
50
R = 250 (I 20mA)
R
L
G = R + r
E
≈
R
L
E
OTA
B
C
3
8
+IN
2
E
OTA
B
E
3
2
–IN
C
8
R
E
Tuning Coil
Magnetic Head
Driver Transformer
I
O
FIGURE 11. DC Restorer Circuit.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OPA660AP | 功能描述:IC OPAMP TRANSCOND 850MHZ 8DIP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 產(chǎn)品變化通告:Discontinuation 18/May/2012 標(biāo)準(zhǔn)包裝:2,000 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.42 V/µs 增益帶寬積:1.5MHz -3db帶寬:- 電流 - 輸入偏壓:15nA 電壓 - 輸入偏移:1000µV 電流 - 電源:116µA 電流 - 輸出 / 通道:100mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5 V，±0.9 V ~ 2.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 產(chǎn)品目錄頁面:851 (CN2011-ZH PDF) 其它名稱:296-20930-2 |
| OPA660AU | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| OPA660AU/2K5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| OPA6610 | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Red LED Chip |
| OPA6611 | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Red LED Chip |
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