OPA681

更新时间： 2024-11-06 22:50:51

品牌	Logo	应用领域
BB		运算放大器
页数	文件大小	规格书
21页	242K
描述
Wideband, Current Feedback OPERATIONAL AMPLIFIER With Disable

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OPA681 数据手册

OPA681

Wideband, Current Feedback

OPERATIONAL AMPLIFIER With Disable

FEATURES

APPLICATIONS

●

WIDEBAND +5V OPERATION: 225MHz (G = +2)

● xDSL LINE DRIVER

●

UNITY GAIN STABLE: 280MHz (G = 1)

● BROADBAND VIDEO BUFFERS

● HIGH SPEED IMAGING CHANNELS

● PORTABLE INSTRUMENTS

● ADC BUFFERS

● HIGH OUTPUT CURRENT: 150mA

● OUTPUT VOLTAGE SWING: ±4.0V

● HIGH SLEW RATE: 2100V/µs

● ACTIVE FILTERS

● LOW dG/d : .001%/.01°

● WIDEBAND INVERTING SUMMING

● HIGH SFDR IF AMPLIFIER

● LOW SUPPLY CURRENT: 6mA

● LOW DISABLED CURRENT: 320µA

DESCRIPTION

The OPA681 sets a new level of performance for broadband

current feedback op amps. Operating on a very low 6mA

supply current, the OPA681 offers a slew rate and output

power normally associated with a much higher supply cur-

rent. A new output stage architecture delivers a high output

current with minimal voltage headroom and crossover

distortion. This gives exceptional single-supply operation.

Using a single +5V supply, the OPA681 can deliver a 1V to

4V output swing with over 100mA drive current and 150MHz

bandwidth. This combination of features makes the OPA681

an ideal RGB line driver or single-supply ADC input driver.

guarantees lower guaranteed maximum supply current than

competing 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 OPA681 supply current drops to less than 320µA while the

output goes into a high impedance state. This feature may be

used for either power savings or for video MUX applications.

OPA681 RELATED PRODUCTS

SINGLES

DUALS

TRIPLES

Voltage Feedback

Current Feedback

Fixed Gain

OPA680

OPA681

OPA682

OPA2680

OPA2681

OPA2682

OPA3680

OPA3681

OPA3682

The OPA681’s low 6mA supply current is precisely trimmed

at 25°C. This trim, along with low drift over temperature,

+5V

DIS

50Ω

V_O= – (V₁+ V₂+ V₃+ V₄+ V₅)

50Ω

OPA681

V₁

V₂

V₃

V₄

V₅

RG-58

50Ω

23.7Ω

100Ω

100MHz, –1dB Compression

= 15dBm

–5V

200MHz RF Summing Amplifier

International Airport Industrial Park

•

Mailing Address: PO Box 11400, Tucson, AZ 85734

•

Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706

• Tel: (520) 746-1111

Twx: 910-952-1111 Internet: http://www.burr-brown.com/

•

Cable: BBRCORP Telex: 066-6491

•

FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132

•

PDS-1427C

Printed in U.S.A. March, 1999

12 3 4 5 6 7...21

中文翻译

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与OPA681相关器件

型号	品牌	获取价格	描述	数据表
OPA681DATASHEET	BB	获取价格	OPA681 Data Sheet - SpeedPlus Wideband. Current Feedback OPERATIONAL AMPLIFIER With Disabl
OPA681N	BB	获取价格	Wideband, Current Feedback OPERATIONAL AMPLIFIER With Disable
OPA681N	TI	获取价格	Wideband, Current Feedback OPERATIONAL AMPLIFIER
OPA681N/250	TI	获取价格	Wideband, Current Feedback OPERATIONAL AMPLIFIER
OPA681N/3K	TI	获取价格	Wideband, Current Feedback OPERATIONAL AMPLIFIER
OPA681P	BB	获取价格	Wideband, Current Feedback OPERATIONAL AMPLIFIER With Disable
OPA681P	TI	获取价格	Wideband, Current Feedback OPERATIONAL AMPLIFIER
OPA681U	BB	获取价格	Wideband, Current Feedback OPERATIONAL AMPLIFIER With Disable
OPA681U	TI	获取价格	Wideband, Current Feedback OPERATIONAL AMPLIFIER
OPA681U/2K5	TI	获取价格	Wideband, Current Feedback OPERATIONAL AMPLIFIER

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