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參數(shù)資料
| 型號： | OPA682P |
| 英文描述： | Wideband, Fixed Gain BUFFER AMPLIFIER With Disable |
| 中文描述： | 寬帶，固定增益緩沖放大器具有禁用 |
| 文件頁數(shù)： | 14/20頁 |
| 文件大小： | 213K |
| 代理商： | OPA682P |
14
OPA682
cies exceeding 5MHz. The high slew rate, exceptional out-
put swing and high linearity of the OPA682 make it an ideal
single-supply ADC driver. Figure 3 shows an example input
interface to a very high performance 10-bit, 60MSPS CMOS
converter.
The OPA682 in the circuit of Figure 3 provides 240MHz
bandwidth operating at a signal gain of +2 with a 2Vp-p
output swing. The non-inverting input bias voltage is refer-
enced to the midpoint of the ADC signal range by dividing
off the top and bottom of the internal ADC reference ladder.
With the gain resistor (R
G
) AC-coupled, this bias voltage
has a gain of +1 to the output, centering the output voltage
swing as well. Tested performance at a 20MHz analog input
frequency and a 60MSPS clock rate on the converter gives
> 58dBc SFDR.
WIDEBAND VIDEO MULTIPLEXING
One common application for video speed amplifiers which
include a disable pin is to wire multiple amplifier outputs
together, then select which one of several possible video
inputs to source onto a single line. This simple “Wired-OR
Video Multiplexer” can be easily implemented using the
OPA682 as shown in Figure 4.
FIGURE 3. Wideband, AC-Coupled, Single-Supply A/D Driver.
FIGURE 4. Two-Channel Video Multiplexer.
OPA682
400
+2.5V DC Bias
ADS823
10-Bit
60MSPS
50
2Vp-p
DIS
22pF
Input
Input
400
REFB
REFT
CM
0.1
μ
F
0.1
μ
F
1Vp-p
2k
0.1
μ
F
+3.5V
2k
0.1
μ
F
+1.5V
+5V
Clock
+5V
R
G
R
F
OPA682
2k
V
OUT
75
Cable
RG-59
68.1
68.1
75
400
400
Video 1
+5V
+5V
|
V
OUT
| < 2.6V
–5V
OPA682
2k
75
400
400
Video 2
–5V
+5V
V
DIS
DIS
DIS
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| OPA686U | Wideband, Low Noise, Voltage Feedback OPERATIONAL AMPLIFIER |
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| OPA686 | Wideband, Low Noise, Voltage Feedback OPERATIONAL AMPLIFIER |
| OPA687N | Wideband, Ultra-Low Noise, Voltage Feedback OPERATIONAL AMPLIFIER With Power Down |
| OPA687U | Wideband, Ultra-Low Noise, Voltage Feedback OPERATIONAL AMPLIFIER With Power Down |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OPA682U | 功能描述:高速運(yùn)算放大器 Wb Fixed Gain RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| OPA682U/2K5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Buffer/Voltage Follower |
| OPA683 | 制造商:BB 制造商全稱:BB 功能描述:Wideband, Low-Power, Current Feedback Operational Amplifier |
| OPA683ID | 功能描述:高速運(yùn)算放大器 Very Lo-Pwr Current Feedback RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| OPA683IDBVR | 功能描述:高速運(yùn)算放大器 Very Lo-Pwr Current Feedback RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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