FEATURES

FLEXIBLE SUPPLY RANGE:

+5V to +12V Single-Supply

±2.5V to ±6V Dual Supply

UNITY-GAIN STABLE: 280MHz (G = 1)

HIGH OUTPUT CURRENT: 190mA

OUTPUT VOLTAGE SWING: ±4.0V

HIGH SLEW RATE: 2100V/μs

LOW SUPPLY CURRENT: 5.1mA/ch

LOW DISABLED CURRENT: 150μA/ch

IMPROVED HIGH-FREQUENCY PINOUT

WIDEBAND +5V OPERATION: 190MHz (G = +2)

APPLICATIONS

RGB AMPLIFIERS

WIDEBAND INA

BROADBAND VIDEO BUFFERS

HIGH-SPEED IMAGING CHANNELS

PORTABLE INSTRUMENTS

ADC BUFFERS

ACTIVE FILTERS

CABLE DRIVERS

DESCRIPTION

The OPA3691 sets a new level of performance for broadband,

triple current-feedback op amps. Operating on a very

low 5.1mA/ch supply current, the OPA3691 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 distortion. This gives exceptional singlesupply

operation. Using a single +5V supply, the OPA3691

can deliver a 1V to 4V output swing with over 120mA drive

current and 150MHz bandwidth. This combination of features

makes the OPA3691 an ideal RGB line driver or

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

The OPA3691’s low 5.1mA/ch supply current is precisely

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

ensures lower 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 OPA3691 supply current drops to less than

150μA/ch while the output goes into a high impedance

state. This feature may be used for power savings.