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OPA3691IDBQR PDF预览

OPA3691IDBQR

更新时间： 2024-11-19 04:35:43
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BB 运算放大器光电二极管
页数 文件大小 规格书
25页 439K
描述
Triple Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable

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OPA3691  
O
P
A
3
6
9
1
OPA3691  
SBOS227A – DECEMBER 2001 – REVISED OCTOBER 2002  
Triple Wideband, Current-Feedback  
OPERATIONAL AMPLIFIER With Disable  
DESCRIPTION  
FEATURES  
The OPA3691 sets a new level of performance for broad-  
band, triple current-feedback op amps. Operating on a very  
low 5.1mA/ch supply current, the OPA3691 offers a slew  
rate and output power normally associated with a much  
higher supply current. A new output stage architecture  
delivers a high output current with minimal voltage head-  
room and crossover distortion. This gives exceptional single-  
supply operation. Using a single +5V supply, the OPA3691  
can deliver a 1V to 4V output swing with over 120mA drive  
current and 150MHz bandwidth. This combination of fea-  
tures makes the OPA3691 an ideal RGB line driver or  
single-supply Analog-to-Digital Converter (ADC) input driver.  
●
FLEXIBLE SUPPLY RANGE:  
+5V to +12V Single-Supply  
±2.5V to  
±6V Dual Supply  
●
UNITY-GAIN STABLE: 280MHz (G = 1)  
● HIGH OUTPUT CURRENT: 190mA  
● OUTPUT VOLTAGE SWING: ±4.0V  
● HIGH SLEW RATE: 2100V/µs  
● LOW SUPPLY CURRENT: 5.1mA/ch  
● LOW DISABLED CURRENT: 150µA/ch  
● IMPROVED HIGH-FREQUENCY PINOUT  
●
WIDEBAND +5V OPERATION: 190MHz (G = +2)  
The OPA3691’s low 5.1mA/ch supply current is precisely  
trimmed at 25°C. This trim, along with low drift over tem-  
perature, ensures lower maximum supply current than com-  
peting products. System power may be further reduced by  
using the optional disable control pin. Leaving this disable  
pin open, or holding it HIGH, gives normal operation. If  
pulled LOW, the OPA3691 supply current drops to less than  
150µA/ch while the output goes into a high impedance  
state. This feature may be used for power savings.  
APPLICATIONS  
● RGB AMPLIFIERS  
● WIDEBAND INA  
● BROADBAND VIDEO BUFFERS  
● HIGH-SPEED IMAGING CHANNELS  
● PORTABLE INSTRUMENTS  
● ADC BUFFERS  
OPA3691 RELATED PRODUCTS  
● ACTIVE FILTERS  
SINGLES  
DUALS  
TRIPLES  
● CABLE DRIVERS  
Voltage-Feedback  
Current-Feedback  
Fixed Gain  
OPA690  
OPA691  
OPA692  
OPA2690  
OPA2691  
—
OPA3690  
OPA3681  
OPA3692  
+5V  
V1  
1/3  
OPA3691  
HIGH-SPEED INA FREQUENCY RESPONSE  
250Ω  
25  
20  
15  
10  
5
+5V  
–5V  
301Ω  
10 (V1 – V2)  
1/3  
OPA3691  
250Ω  
66.5Ω  
301Ω  
–5V  
499Ω  
+5V  
499Ω  
1/3  
OPA3691  
V2  
0
0.1  
1
10  
100  
400  
High-Speed INA (120MHz)  
–5V  
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.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
Copyright © 2001, Texas Instruments Incorporated  
www.ti.com  
1234567...25

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