Wideband, Voltage Feedback

OPERATIONAL AMPLIFIER With Disable

FEATURES

q FLEXIBLE SUPPLY RANGE:

+5V to +12V Single Supply

q UNITY-GAIN STABLE: 500MHz (G = 1)

q HIGH OUTPUT CURRENT: 190mA

q OUTPUT VOLTAGE SWING:

q HIGH SLEW RATE: 1800V/

q LOW SUPPLY CURRENT: 5.5mA

q LOW DISABLED CURRENT: 100

q WIDEBAND +5V OPERATION: 220MHz (G = 2)

APPLICATIONS

q VIDEO LINE DRIVER

q xDSL LINE DRIVER/RECEIVER

q HIGH SPEED IMAGING CHANNELS

q ADC BUFFERS

q PORTABLE INSTRUMENTS

q TRANSIMPEDANCE AMPLIFIERS

q ACTIVE FILTERS

q OPA680 UPGRADE

DESCRIPTION

The OPA690 represents a major step forward in unity-gain

stable, voltage feedback op amps. A new internal architec-

ture provides slew rate and full-power bandwidth previously

found only in wideband current feedback op amps. A new

output stage architecture delivers high currents with a

minimal headroom requirement. These combine to give

exceptional single-supply operation. Using a single +5V

supply, the OPA690 can deliver a 1V to 4V output swing

with over 150mA drive current and 150MHz bandwidth.

This combination of features makes the OPA690 an ideal

RGB line driver or single-supply Analog-to-Digital Con-

verter (ADC) input driver.

The OPA690’s low 5.5mA supply current is precisely trimmed

at 25

°C. This trim, along with low temperature drift, gives

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 OPA690 normally. If pulled LOW,

the OPA690 supply current drops to less than 100

µA while

the output goes to a high impedance state. This feature may

be used for power savings.

OPA690 RELATED PRODUCTS

SINGLES

DUALS

TRIPLES

Voltage Feedback

OPA680

OPA2690

OPA3690

Current Feedback

OPA691

OPA2691

OPA3691

Fixed Gain

OPA692

OPA2682

OPA3692

OPA690

SBOS223A—DECEMBER 2001 – REVISED JULY 2002

www.ti.com

Copyright © 2001, Texas Instruments Incorporated

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.

OPA6

90

OPA6

90

R

4

20

Ω

R

5

20

Ω

C

3

20pF

C

6

20pF

C

4

10

µF

C

5

0.1

µF

THS1040

10-Bit

40MSPS

AIN+

AIN–

V

C

2

8

OPA690

3

2

4

R

1

+5V

R

2

R

1

R

3

0.1

µF

2.5V

C

1

V

I

3.3V

Single-Supply ADC Driver

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.