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Burr-Brown - Ultra-Wideband / Fixed Gain Video BUFFER AMPLIFIER with Disable

Numéro de référence OPA693
Description Ultra-Wideband / Fixed Gain Video BUFFER AMPLIFIER with Disable
Fabricant Burr-Brown 
Logo Burr-Brown 





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OPA693 fiche technique
OPA693
OPA693
OPA693
SBOS285 – OCTOBER 2003
Ultra-Wideband, Fixed Gain
Video BUFFER AMPLIFIER with Disable
FEATURES
q VERY HIGH BANDWIDTH (G = +2): 700MHz
q FLEXIBLE SUPPLY RANGE:
+5V to +12V Single Supply
±2.5V to ±6V Dual Supplies
q INTERNALLY FIXED GAIN: +2 or ±1
q LOW SUPPLY CURRENT: 13mA
q LOW DISABLED CURRENT: 120µA
q HIGH OUTPUT CURRENT: ±120mA
q OUTPUT VOLTAGE SWING: ±4.1V
q SOT23-6 AVAILABLE
APPLICATIONS
q BROADBAND VIDEO LINE DRIVERS
q MULTIPLE LINE VIDEO DA
q PORTABLE INSTRUMENTS
q ADC BUFFERS
q HIGH FREQUENCY ACTIVE FILTERS
q HFA1112 IMPROVED DROP-IN
OPA693 RELATED PRODUCTS
Voltage Feedback
Current Feedback
Fixed Gain
> 900MHz
SINGLES
OPA690
OPA691
OPA692
OPA695
DUALS
OPA2690
OPA2691
TRIPLES
OPA3690
OPA3691
OPA3692
OPA693
Video
In
1
300
2
3008 DIS
7 +5V
755V
3
4
6
5
SO-8
G = +2
75
75
DESCRIPTION
The OPA693 provides an easy to use, broadband, fixed gain
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 voltage buffer.
Operating on a low 13mA supply current, the OPA693 offers
a slew rate (2500V/µs) and bandwidth (> 700MHz) 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
OPA693 can deliver a 2.5VPP swing with over 90mA drive
current and 500MHz bandwidth at a gain of +2. This combi-
nation of features makes the OPA693 an ideal RGB line
driver or single-supply undersampling Analog-to-Digital Con-
verter (ADC) input driver.
The OPA693’s low 13mA supply current is precisely trimmed
at 25°C. This trim, along with low drift over temperature,
ensures 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. This optional dis-
able allows the OPA693 to fit into existing video buffer
layouts where the disable pin is unconnected to get improved
performance with no board changes. If pulled LOW, the
OPA693 supply current drops to less than 170µA while the
output goes into a high impedance state. This feature may be
used for power savings.
The low gain stable current-feedback architecture used in the
OPA693 is particularly suitable for high full-power bandwidth
cable driving requirements. Where the additional flexibility of
an op amp is required, consider the OPA695 ultra-wideband
current feedback op amp. Where a unity gain stable voltage
feedback op amp with very high slew rate is required,
consider the OPA690.
RG-59
Video
Out
75
RG-59
Video
Out
75
700MHz, 2-Output Component Video DA
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
www.ti.com
Copyright © 2002-2003, Texas Instruments Incorporated

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