OPA3682 Datasheet, PDF (1/19 Pages) Burr-Brown (TI) – Triple, Wideband, Fixed Gain BUFFER AMPLIFIER With Disable

®
OPA3682
OPA3682
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OPA3682
TM _{Triple, 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
q IMPROVED HIGH FREQUENCY PINOUT
DESCRIPTION
The OPA3682 provides an easy-to-use, broadband fixed
gain, triple buffer amplifier. Depending on the external
connections, the internal resistor network may be used to
provide 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 OPA3682 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 minimal headroom and
crossover distortion. This gives exceptional single-sup-
ply operation. Using a single +5V supply, the OPA3682
can deliver a 1V to 4V output swing with over 100mA
drive current and 200MHz bandwidth. This combination
of features makes the OPA3682 an ideal RGB line driver
or single-supply, triple ADC input driver.
The OPA3682’s low 6mA/ch supply current is precisely
trimmed at 25°C. This trim, along with low drift over
temperature, guarantees lower maximum supply current
than competing products that report only a room tempera-
ture 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 OPA3682 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.
APPLICATIONS
q RGB VIDEO LINE DRIVER
q VIDEO MULTIPLEXERS
q MULTIPLE LINE VIDEO D/As
q PORTABLE INSTRUMENTS
q ADC BUFFERS
q ACTIVE FILTERS
q WIDEBAND DIFFERENTIAL RECEIVERS
OPA3682 RELATED PRODUCTS
SINGLES
DUALS
Voltage Feedback
Current Feedback
Fixed Gain
OPA680
OPA681
OPA682
OPA2680
OPA2681
OPA2682
TRIPLES
OPA3680
OPA3681
OPA3682
V_R
75.0Ω
V_G
75.0Ω
V_B
75.0Ω
400Ω
1/3
OPA3682
400Ω
75.0Ω 75Ω Cable
RG-59
400Ω
1/3
OPA3682
400Ω
75.0Ω 75Ω Cable
RG-59
400Ω
1/3
OPA3682
400Ω
75.0Ω 75Ω Cable
RG-59
Video RGB Amplifier
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: [phone]
Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
©_{1998 Burr-Brown Corporation}
PDS-1496B
Printed in U.S.A. June, 1999