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OPA2680

更新时间： 2024-11-29 04:35:47
品牌 Logo 应用领域
BB 运算放大器
页数 文件大小 规格书
30页 484K
描述
Dual, Wideband, Voltage-Feedback OPERATIONAL AMPLIFIER with Disable

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OPA2680 数据手册

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OPA2690  
SBOS238D − JUNE 2002 − REVISED DECEMBER 2004  
Dual, Wideband, Voltage-Feedback  
OPERATIONAL AMPLIFIER with Disable  
FD EATURES  
DESCRIPTION  
FLEXIBLE SUPPLY RANGE:  
+5V to +12V Single Supply  
2.5V to 6V Dual Supply  
The OPA2690 represents a major step forward in  
unity-gain stable, voltage-feedback op amps. A new  
internal architecture provides slew rate and full-power  
bandwidth previously found only in wideband,  
D
D
D
D
D
D
WIDEBAND +5V OPERATION: 220MHz (G = 2)  
HIGH OUTPUT CURRENT: 190mA  
OUTPUT VOLTAGE SWING: 4.0V  
HIGH SLEW RATE: 1800V/µs  
LOW SUPPLY CURRENT: 5.5mA/ch  
LOW DISABLED CURRENT: 100µA/ch  
current-feedback op amps.  
A new output stage  
architecture delivers high currents with a minimal  
headroom requirement. These give exceptional  
single-supply operation. Using a single +5V supply, the  
OPA2690 can deliver a 1V to 4V output swing with over  
120mA drive current and 150MHz bandwidth. This  
combination of features makes the OPA2690 an ideal  
RGB line driver or single-supply Analog-to-Digital  
Converter (ADC) input driver.  
AD PPLICATIONS  
The low 5.5mA/ch supply current of the OPA2690 is  
precisely trimmed at +25°C. This trim, along with low  
temperature drift, ensures lower maximum supply current  
than competing products. System power may be reduced  
further using the optional disable control pin. Leaving this  
disable pin open, or holding it HIGH, will operate the  
OPA2690I-14D normally. If pulled LOW, the  
OPA2690I-14D supply current drops to less than  
200µA/ch while the output goes to a high-impedance  
state.  
VIDEO LINE DRIVING  
D
D
D
D
D
D
xDSL LINE DRIVER/RECEIVER  
HIGH-SPEED IMAGING CHANNELS  
ADC BUFFERS  
PORTABLE INSTRUMENTS  
TRANSIMPEDANCE AMPLIFIERS  
ACTIVE FILTERS  
OPA2690 RELATED PRODUCTS  
+5V  
100Ω  
2kΩ  
+2.5V  
SINGLES  
DUALS  
TRIPLES  
+2.5V  
+5V  
F
100pF  
0.1  
µ
Voltage-Feedback  
Current-Feedback  
Fixed Gain  
OPA2690  
OPA691  
OPA692  
OPA2680  
OPA2691  
—
OPA3690  
OPA3691  
OPA3692  
1/2  
2k  
Ω
O P A 2690  
REFB  
REFT  
499Ω  
0.1µF  
1k  
Ω
35Ω  
499Ω  
499Ω  
HARMONIC DISTORTION vs FREQUENCY  
FOR THE SINGLE−SUPPLY ADC DRIVER  
IN  
IN  
10pF  
ADS825  
−
−
−
−
−
−
−
−
−
−
2.5VCM  
2VPP  
50  
55  
60  
65  
70  
75  
80  
85  
90  
95  
VIN  
2VPP Differential Output  
10−Bit  
40MSPS  
35Ω  
1k  
Ω
10pF  
1/2  
O P A 2690  
Clock  
499  
Ω
+2.5V  
3rd−Harmonic  
2nd−Harmonic  
Single-Supply Differential ADC Driver  
−
100  
1
10  
20  
Frequency (MHz)  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments  
semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
ꢀꢁ ꢂ ꢃꢄ ꢅ ꢆꢇ ꢂꢈ ꢃ ꢉꢆꢉ ꢊꢋ ꢌꢍ ꢎ ꢏꢐ ꢑꢊꢍꢋ ꢊꢒ ꢓꢔ ꢎ ꢎ ꢕꢋꢑ ꢐꢒ ꢍꢌ ꢖꢔꢗ ꢘꢊꢓ ꢐꢑꢊ ꢍꢋ ꢙꢐ ꢑꢕꢚ ꢀꢎ ꢍꢙꢔ ꢓꢑꢒ  
ꢓ ꢍꢋ ꢌꢍꢎ ꢏ ꢑꢍ ꢒ ꢖꢕ ꢓ ꢊ ꢌꢊ ꢓ ꢐ ꢑꢊ ꢍꢋꢒ ꢖ ꢕꢎ ꢑꢛꢕ ꢑꢕ ꢎ ꢏꢒ ꢍꢌ ꢆꢕꢜ ꢐꢒ ꢇꢋꢒ ꢑꢎ ꢔꢏ ꢕꢋꢑ ꢒ ꢒꢑ ꢐꢋꢙ ꢐꢎ ꢙ ꢝ ꢐꢎ ꢎ ꢐ ꢋꢑꢞꢚ  
ꢀꢎ ꢍ ꢙꢔꢓ ꢑ ꢊꢍ ꢋ ꢖꢎ ꢍ ꢓ ꢕ ꢒ ꢒ ꢊꢋ ꢟ ꢙꢍ ꢕ ꢒ ꢋꢍꢑ ꢋꢕ ꢓꢕ ꢒꢒ ꢐꢎ ꢊꢘ ꢞ ꢊꢋꢓ ꢘꢔꢙ ꢕ ꢑꢕ ꢒꢑꢊ ꢋꢟ ꢍꢌ ꢐꢘ ꢘ ꢖꢐ ꢎ ꢐꢏ ꢕꢑꢕ ꢎ ꢒꢚ  
Copyright 2002−2004, Texas Instruments Incorporated  
www.ti.com  
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