OPA875 Datasheet, PDF (1/21 Pages) Texas Instruments – Single 2:1 High-Speed Video Multiplexer

BurrĆBrown Products
TIV675
from Texas Instruments
OPA875
Single 2:1 High-Speed Video Multiplexer
SBOS340 – DECEMBER 2006
FEATURES
• 700MHz SMALL-SIGNAL BANDWIDTH
(A_V = +2)
• 425MHz, 4V_PP BANDWIDTH
• 0.1dB GAIN FLATNESS to 200MHz
• 4ns CHANNEL SWITCHING TIME
• LOW SWITCHING GLITCH: 40mV_PP
• 3100V/µs SLEW RATE
• 0.025%/0.025° DIFFERENTIAL GAIN, PHASE
• HIGH GAIN ACCURACY: 2.0V/V ±0.4%
APPLICATIONS
• RGB SWITCHING
• LCD PROJECTOR INPUT SELECT
• WORKSTATION GRAPHICS
• ADC INPUT MUX
• DROP-IN UPGRADE TO LT1675-1
Ch 0
Ch 1
75W
OPA875
(Patented)
75W
EN
75W
Out
SEL
Channel Select
2:1 Video Multiplexer
DESCRIPTION
The OPA875 offers a very wideband, single-channel
2:1 multiplexer in an SO-8 or a small MSOP-8
package. Using only 11mA, the OPA875 provides a
gain of +2 video amplifier channel with > 425MHz
large-signal bandwidth (4V_PP). Gain accuracy and
switching glitch are improved over earlier solutions
using a new input stage switching approach. This
technique uses current steering as the input switch
while maintaining an overall closed-loop design. With
> 700MHz small-signal bandwidth at a gain of 2, the
OPA875 gives a typical 0.1dB gain flatness to
> 200MHz.
System power may be reduced using the chip enable
feature for the OPA875. Taking the chip enable line
high powers down the OPA875 to < 300µA total
supply current. Muxing multiple OPA875 outputs
together, then using the chip enable to select which
channels are active, increases the number of
possible inputs.
Where three channels are required, consider using
the OPA3875 for the same level of performance.
OPA875 RELATED PRODUCTS
OPA3875
OPA692
OPA693
DESCRIPTION
Triple-Channel OPA875
225MHz Video Buffer
700MHz Video Buffer
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006, Texas Instruments Incorporated