OPA678 Datasheet, PDF (1/14 Pages) Burr-Brown (TI) – Wideband Switched-Input OPERATIONAL AMPLIFIER

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OPA678
OPA678
OPA678
Wideband Switched-Input
OPERATIONAL AMPLIFIER
FEATURES
q FAST SETTLING: 11ns (1%)
q WIDE BANDWIDTH: 200MHz
q TWO LOGIC SELECTABLE INPUTS
q LOW OFFSET VOLTAGE: ±380µV
q FAST INPUT SWITCHING: 4ns
q ACCEPTS TTL/ECL SWITCHING SIGNALS
q UNITY GAIN STABLE
q 16-PIN DIP AND SO-16 PACKAGES
APPLICATIONS
q VIDEO AMPLIFICATION AND SWITCHING
q FAST 2-INPUT MULTIPLEXER
q PULSE/RF AMPLIFIERS
q PROGRAMMABLE-GAIN AMPLIFIER
q ACTIVE FILTERS
q SYNCHRONOUS DEMODULATOR
q LOW COST REPLACEMENT FOR OPA675/676
DESCRIPTION
The OPA678 is a wideband monolithic operational
amplifier with two independent differential inputs.
Either input can be selected by an external TTL or
ECL logic signal. The amplifier is externally compen-
sated and features a very fast input selection speed, 4ns
for either ECL or TTL. This amplifier features fully
symmetrical differential inputs due to its “classical”
operational amplifier circuit architecture. Unlike “cur-
rent-feedback” amplifier designs, the OPA678 may be
used in all op amp applications requiring high speed
and precision.
Low distortion and crosstalk make this amplifier suit-
able for RF and video applications.
The OPA678 is available in plastic DIP and SO-16
packages.
–
Input A
+
A/B Channel
Select Input
(TTL or ECL)
–
Input B
+
A
Enable
A
Enable
B
B
Output
Compensation
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/ • FAXLine: [phone] (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
©_{1992 Burr-Brown Corporation}
PDS-₁1136E
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OPA678 ^{Printed in U.S.A. March, 1998}