0.1 F

m

IN

+5V

10pF

0.1 F

m

10pF

499W

499W

Clock

IN

REFT

REFB

ADS825

10-Bit

40MSPS

1/2

OPA2690

+5V

+2.5V

+2.5V

+2.5V

1/2

OPA2690

V

IN

1kW

1kW

499W

499W

35W

35W

2kW

100W

100pF

2kW

2.5V

CM

2V

PP

HARMONICDISTORTIONvsFREQUENCY

FORTHESINGLE-SUPPLYADCDRIVER

Frequency(MHz)

-50

-55

-60

-65

-70

-75

-80

-85

-90

-95

-100

1

10

20

3rd-Harmonic

2nd-Harmonic

2V

DifferentialOutput

PP

OPA2690

www.ti.com

SBOS238G – JUNE 2002 – REVISED MARCH 2010

Dual, Wideband, Voltage-Feedback

OPERATIONAL AMPLIFIER with Disable

Check for Samples: OPA2690

1

FEATURES

DESCRIPTION

2

•

FLEXIBLE SUPPLY RANGE:

The OPA2690 represents a major step forward in

+5V to +12V Single Supply

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

±2.5V to ±6V Dual Supply

internal architecture provides slew rate and full-power

bandwidth

previously

found

only

in

wideband,

•

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

current-feedback op amps. A new output stage

•

HIGH OUTPUT CURRENT: 190mA

architecture delivers high currents with a minimal

•

OUTPUT VOLTAGE SWING: ±4.0V

headroom

requirement.

These

give

exceptional

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

•

HIGH SLEW RATE: 1800V/ms

the OPA2690 can deliver a 1V to 4V output swing

•

LOW SUPPLY CURRENT: 5.5mA/ch

with

over

120mA

drive

current

and

150MHz

•

LOW DISABLE CURRENT: 100mA/ch

bandwidth. This combination of features makes the

OPA2690 an ideal RGB line driver or single-supply

APPLICATIONS

Analog-to-Digital Converter (ADC) input driver.

•

VIDEO LINE DRIVING

The low 5.5mA/ch supply current of the OPA2690 is

•

xDSL LINE DRIVER/RECEIVER

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

temperature drift, provides lower maximum supply

•

HIGH-SPEED IMAGING CHANNELS

current than competing products. System power may

•

ADC BUFFERS

be reduced further using the optional disable control

•

PORTABLE INSTRUMENTS

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

•

TRANSIMPEDANCE AMPLIFIERS

will operate the OPA2690I-14D normally. If pulled

•

ACTIVE FILTERS

LOW, the OPA2690I-14D supply current drops to less

than

200mA/ch

while

the

output

goes

to

a

Single-Supply Differential ADC Driver

high-impedance state.

OPA2690 RELATED PRODUCTS

SINGLES

DUALS

TRIPLES

Voltage-Feedback

OPA690

OPA2690

OPA3690

Current-Feedback

OPA691

OPA2691

OPA3691

Fixed Gain

OPA692

—

OPA3692

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 © 2002–2010, 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.