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 dG/dφ: 0.07%/0.02°
LOW SUPPLY CURRENT: 5.1mA
LOW DISABLED CURRENT: 150μA
WIDEBAND +5V OPERATION: 190MHz (G = +2)

APPLICATIONS
xDSL LINE DRIVER
BROADBAND VIDEO BUFFERS
HIGH-SPEED IMAGING CHANNELS
PORTABLE INSTRUMENTS
ADC BUFFERS
ACTIVE FILTERS
WIDEBAND INVERTING SUMMING
HIGH SFDR IF AMPLIFIER

DESCRIPTION
The OPA691 sets a new level of performance for broadband
current feedback op amps. Operating on a very low 5.1mA
supply current, the OPA691 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 single-supply operation. Using a
single +5V supply, the OPA691 can deliver a 1V to 4V output
swing with over 150mA drive current and 190MHz bandwidth.
This combination of features makes the OPA691 an
ideal RGB line driver or single-supply Analog-to-Digital Converter
(ADC) input driver.
The OPA691’s low 5.1mA 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
OPA691 supply current drops to less than 150μA while the
output goes into a high impedance state. This feature may be
used for power savings.