OPA3681 Burr-Brown, OPA3681 Datasheet

OPA3681

Manufacturer Part Number

OPA3681

Description

Triple Wideband / Current-Feedback OPERATIONAL AMPLIFIER With Disable

Manufacturer

Burr-Brown

Datasheet

1.OPA3681.pdf (21 pages)

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FEATURES

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APPLICATIONS

1999 Burr-Brown Corporation

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

UNITY GAIN STABLE: 280MHz (G = 1)

HIGH OUTPUT CURRENT: 150mA

OUTPUT VOLTAGE SWING: 4.0V

HIGH SLEW RATE: 2100V/ s

LOW SUPPLY CURRENT: 6mA/ch

LOW DISABLED CURRENT: 300 A/ch

IMPROVED HIGH FREQUENCY PINOUT

RGB AMPLIFIERS

WIDEBAND INA

BROADBAND VIDEO BUFFERS

HIGH SPEED IMAGING CHANNELS

PORTABLE INSTRUMENTS

ADC BUFFERS

ACTIVE FILTERS

CABLE DRIVERS

information, visit www.burr-brown.com

66.5

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

OPA3681

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

301

1/3

OPERATIONAL AMPLIFIER With Disable

–5

High Speed INA (>120MHz)

250

499

OPA3681

Triple Wideband, Current-Feedback

499

1/3

–5

10 (V

– V

)

PDS-1452B

DESCRIPTION

The OPA3681 sets a new level of performance for broadband

triple current-feedback op amps. Operating on a very low

6mA/ch supply current, the OPA3681 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 headroom and crossover distor-

tion. This gives exceptional single-supply operation. Using a

single +5V supply, the OPA3681 can deliver a 1V to 4V output

swing with over 100mA drive current and 150MHz bandwidth.

This combination of features makes the OPA3681 an ideal RGB

line driver or single-supply ADC input driver.

The OPA3681’s low 6mA/ch supply current is precisely trimmed

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

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 OPA3681 supply current drops to less than 300 A/ch while

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

used for power savings or for video MUX applications.

OPA3681 RELATED PRODUCTS

Voltage Feedback

Current Feedback

Fixed Gain

0.1M

DIFFERENTIAL TO SINGLE-ENDED

FREQUENCY RESPONSE

SINGLES

OPA680

OPA681

OPA682

Frequency (Hz)

10M

Printed in U.S.A. September, 1999

OPA2680

OPA2681

OPA2682

DUALS

OPA3681

100M

OPA3680

OPA3681

OPA3682

TRIPLES

–3dB

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