OPA3875
www.ti.com ............................................................................................................................................ SBOS341D–DECEMBER 2006–REVISED AUGUST 2008
Triple 2:1 High-Speed Video Multiplexer
1
FEATURES
DESCRIPTION
2
•
700MHz SMALL-SIGNAL BANDWIDTH
(AV = +2)
The OPA3875 offers a very wideband, 3-channel, 2:1
multiplexer in a small SSOP-16 package. Using only
11mA/ch, the OPA3875 provides three, gain of +2,
video amplifier channels with greater than 400MHz
large-signal bandwidth (4VPP). Gain accuracy and
switching glitch are improved over earlier solutions
•
•
•
•
•
•
•
425MHz, 4VPP BANDWIDTH
0.1dB GAIN FLATNESS to 150MHz
4ns CHANNEL SWITCHING TIME
LOW SWITCHING GLITCH: 40mVPP
3100V/µs SLEW RATE
using
a new (patented) input stage switching
approach. This technique uses current steering as the
input switch while maintaining an overall closed-loop
design. Gain matching between each of the
3-channel pairs is also significantly improved using
this technique (<0.2% gain mismatch). With greater
than 700MHz small-signal bandwidth at a gain of 2,
the OPA3875 gives a typical 0.1dB gain flatness to
greater than 150MHz.
0.025%/0.025° DIFFERENTIAL GAIN, PHASE
HIGH GAIN ACCURACY: 2.0V/V ±0.4%
APPLICATIONS
•
•
•
•
•
RGB SWITCHING
LCD PROJECTOR INPUT SELECT
WORKSTATION GRAPHICS
TRIPLE ADC INPUT MUX
DROP-IN UPGRADE TO LT1675
System power may be reduced using the chip enable
feature for the OPA3875. Taking the chip enable line
high powers down the OPA3875 to less than 900µA
total supply current. Muxing multiple OPA3875
outputs together, then using the chip enable to select
which channels are active, increases the number of
possible inputs to the 3-channel outputs.
+5V
75W
75W
Where a single channel of the OPA3875 is required,
consider the OPA875.
RGB
Channel 0
75W
75W
OPA3875
SELECT ENABLE RED OUT GREEN OUT BLUE OUT
1
0
X
0
0
1
R0
R1
Off
G0
G1
Off
B0
B1
Off
75W
RGB
Out
OPA3875
(Patented)
75W
75W
75W
OPA3875 RELATED PRODUCTS
RGB
75W
Channel 1
DESCRIPTION
OPA875
OPA4872
OPA3693
Single-Channel OPA3875
Quad 510MHz 4:1 Multiplexer
Triple 650MHz Video Buffer
-5V
EN
Channel
Select
RGB Switching
1
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.
2
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 © 2006–2008, Texas Instruments Incorporated
5秒后页面跳转
SI2301 N沟道MOSFET：资料手册参数分析
ADC0809逐次逼近寄存器型模数转换器：资料手册参数分析
AD9361捷变收发器：全面参数解析与关键特性概览
IRF3205功率MOSFET：资料手册参数分析
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
