FEATURES
FLEXIBLE SUPPLY RANGE:
+5V to +12V Single Supply
±2.5V to ±6V Dual Supply
WIDEBAND +5V OPERATION: 190MHz (G = +2)
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

APPLICATIONS
xDSL LINE DRIVER/RECEIVER
MATCHED I/Q CHANNEL AMPLIFIER
BROADBAND VIDEO BUFFERS
HIGH-SPEED IMAGING CHANNELS
PORTABLE INSTRUMENTS
DIFFERENTIAL ADC DRIVERS
ACTIVE FILTERS
WIDEBAND INVERTING SUMMING

DESCRIPTION
The OPA2691 sets a new level of performance for broadband dual
current-feedback op amps. Operating on a very low 5.1mA/ch
supply current, the OPA2691 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 OPA2691
can deliver a 1V to 4V output swing with over 150mA drive current
and 190MHz bandwidth. This combination of features makes the
OPA2691 an ideal RGB line driver or single-supply Analog-to-Digital
Converter (ADC) input driver.
The OPA2691’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
(SO-14 only). Leaving this disable pin open, or holding it HIGH,
gives normal operation. If pulled LOW, the OPA2691 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.