OPA890

5.56kW

½

DAC7822

DB0

DB1

DB2

DB3

DB4

DB5

DB6

DB7

DB8

DB9

DB10

DB11

V

R

R

I

I

R

R

R

REF

1

FB

OUT1

OUT2

2

2_3

3

GND

V

DD

+5V

2.5pF

+7.5V

-

2.5V

V

OUT

0V

V

5V

£

£

OUT

0.1 F

m

-

5V

OPA890

www.ti.com

SBOS369B – MAY 2007 – REVISED DECEMBER 2009

Low-Power, Wideband, Voltage-Feedback

OPERATIONAL AMPLIFIER with Disable

Check for Samples: OPA890

1

FEATURES

DESCRIPTION

2

•

FLEXIBLE SUPPLY RANGE:

The OPA890 represents a major step forward in

+3V to +12V Single Supply

unity-gain stable, voltage-feedback op amps. A new

±1.5V to ±6V Dual Supplies

internal architecture provides slew rate and full-power

•

UNITY-GAIN STABLE

bandwidth

previously

found

only

in

wideband,

•

WIDEBAND +5V OPERATION: 115MHz

current-feedback op amps. These capabilities provide

(G = +2V/V)

exceptional full power bandwidth. Using a single +5V

supply, the OPA890 can deliver a 1V to 4V output

•

OUTPUT VOLTAGE SWING: ±4V

swing with over 35mA drive current and 220MHz

•

HIGH SLEW RATE: 500V/

μs

bandwidth. This combination of features makes the

•

LOW QUIESCENT CURRENT: 1.1mA

OPA890 an ideal RGB line driver or single-supply

analog-to-digital converter (ADC) input driver.

•

LOW DISABLE CURRENT: 30

μA

The low 1.1mA supply current of the OPA890 is

APPLICATIONS

precisely trimmed at +25°C. This trim, along with low

•

VIDEO LINE DRIVING

temperature drift, ensures lower maximum supply

current than competing products. System power may

•

xDSL LINE DRIVERS/RECEIVERS

be reduced further using the optional disable control

•

HIGH-SPEED IMAGING CHANNELS

pin. Leaving this disable pin open, or holding it HIGH,

•

ADC BUFFERS

operates the OPA890 normally. If pulled LOW, the

•

PORTABLE INSTRUMENTS

OPA890 supply current drops to less than 30

μA while

the output goes into a high-impedance state.

•

TRANSIMPEDANCE AMPLIFIERS

•

ACTIVE FILTERS

RELATED OPERATIONAL AMPLIFIER PRODUCTS

DESCRIPTION

SINGLES

DUALS

TRIPLES

Low-Power Voltage-Feedback

—

OPA2890

—

with Disable

Voltage-Feedback Amplifier

OPA690

OPA2690

OPA3690

with Disable (1800V/

μs)

Current-Feedback Amplifier

OPA691

OPA2691

OPA3691

with Disable (2100V/

μs)

Fixed Gain

OPA692

—

OPA3692

Multiplying DAC Transimpedance Amplifier

1

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.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2007–2009, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.