OPA3680 Datasheet, PDF (1/21 Pages) Burr-Brown (TI) – Triple, Wideband, Voltage-Feedback OPERATIONAL AMPLIFIER With Disable

®
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OPA3680
OPA3680
OPA3680
TM _{Triple, Wideband, Voltage-Feedback}
OPERATIONAL AMPLIFIER With Disable
FEATURES
q WIDEBAND +5V OPERATION: 220MHz (G = +2)
q HIGH OUTPUT CURRENT: 150mA
q OUTPUT VOLTAGE SWING: ±4.0V
q HIGH SLEW RATE: 1800V/µs
q LOW SUPPLY CURRENT: 6.4mA/ch
q LOW DISABLED CURRENT: 300µA/ch
q ENABLE/DISABLE TIME: 25ns/100ns
APPLICATIONS
q VIDEO LINE DRIVING
q xDSL LINE DRIVER
q HIGH-SPEED IMAGING CHANNELS
q ADC BUFFERS
q PORTABLE INSTRUMENTS
q TRANSIMPEDANCE AMPLIFIERS
q ACTIVE FILTERS
DESCRIPTION
The OPA3680 represents a major step forward in
unity gain stable, voltage-feedback op amps. A new
internal architecture provides slew rate and full power
bandwidth previously found only in wideband cur-
rent-feedback op amps. A new output stage architec-
ture delivers high currents with a minimal headroom
requirement. These give exceptional single-supply
operation. Using a single +5V supply, the OPA3680
can deliver a 1V to 4V output swing with over 80mA
drive current and 150MHz bandwidth. This combina-
tion of features makes the OPA3680 an ideal RGB
line driver or single-supply ADC input driver.
The OPA3680’s low 6.4mA/ch supply current is pre-
cisely trimmed at 25°C. This trim, along with low
temperature drift, guarantees lower maximum supply
current than competing products. System power may be
reduced further using the optional disable control pin.
Leaving this disable pin open, or holding it high, will
operate the OPA3680 normal. If pulled low, the
OPA3680 supply current drops to less than 300µA/ch
while the output goes into a high impedance state. This
feature may be used for either power savings or to
implement video MUX applications.
OPA3680 RELATED PRODUCTS
Voltage Feedback
Current Feedback
Fixed Gain
SINGLES
OPA680
OPA681
OPA682
DUALS
OPA2680
OPA2681
OPA2682
TRIPLES
OPA3680
OPA3681
OPA3682
1pF
49.9Ω
V_IN
1/3
OPA3680
49.9Ω
249Ω
249Ω
R
75.0Ω
1/3
49.9Ω OPA3680
Buffered Analog Delay Line (100ns)
C
330pF
249Ω
1pF
249Ω
R
75.0Ω
49.9Ω
1/3
OPA3680
C
330pF
V_OUT
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©_{1998 Burr-Brown Corporation}
PDS-1434C
Printed in U.S.A. October, 1999