OPA2682 Datasheet, PDF (1/19 Pages) Burr-Brown (TI) – Dual, Wideband, Fixed Gain BUFFER AMPLIFIER With Disable

®
OPA2682
OPA2682
OPA2682
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TM _{Dual, Wideband, Fixed Gain}
BUFFER AMPLIFIER With Disable
FEATURES
q INTERNALLY FIXED GAIN: +2 or ±1
q HIGH BANDWIDTH (G = +2): 240MHz
q LOW SUPPLY CURRENT: 6mA/ch
q LOW DISABLED CURRENT: 320µA/ch
q HIGH OUTPUT CURRENT: 150mA
q OUTPUT VOLTAGE SWING: ±4.0V
q ±5V OR SINGLE +5V OPERATION
APPLICATIONS
q BROADBAND VIDEO LINE DRIVERS
q VIDEO MULTIPLEXERS
q MULTIPLE LINE VIDEO DA
q PORTABLE INSTRUMENTS
q ADC BUFFERS
q ACTIVE FILTERS
DESCRIPTION
The OPA2682 provides an easy to use, broadband fixed
gain, dual buffer amplifier. Depending on the external con-
nections, the internal resistor network may be used to pro-
vide either a fixed gain of +2 video buffer or a gain of +1 or
–1 voltage buffer. Operating on a very low 6mA/ch supply
current, the OPA2682 offers a slew rate and output power
normally associated with a much higher supply current. A
new output stage architecture delivers high output current
with a minimal headroom and crossover distortion. This
gives exceptional single supply operation. Using a single
+5V supply, the OPA2682 can deliver a 1V to 4V output
swing with over 100mA drive current and 200MHz band-
width. This combination of features makes the OPA2682 an
ideal RGB line driver or single-supply ADC input driver.
The OPA2682’s low 6mA/ch supply current is precisely
trimmed at 25°C. This trim, along with low drift over tempera-
ture, guarantees lower maximum supply current than competing
products that report only a room temperature nominal supply
current. 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
OPA2682 supply current drops to less than 320µA/ch while the
output goes into a high impedance state. This feature may be
used for either power savings or for video MUX applications.
OPA2682 RELATED PRODUCTS
Voltage Feedback
SINGLES
OPA680
DUALS
OPA2680
Current Feedback
Fixed Gain
OPA681
OPA682
OPA2681
OPA2682
TRIPLES
OPA3680
OPA3681
OPA3682
V₁
1/2
OPA2682
400Ω
400Ω
400Ω
400Ω
1/2
OPA2682
V₂
249Ω
249Ω
OPA680
499Ω
499Ω
V_OUT = 2 • (V₁ – V₂)
High-Speed Instrumentation
Differential Amplifier
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©_{1998 Burr-Brown Corporation}
PDS-1477B
Printed in U.S.A. October, 1999