전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

Preview PDF HTML

OPA690 데이터시트(PDF) 12 Page - Texas Instruments

Click here to check the latest version.
부품명 OPA690
상세설명  Triple, Wideband, Fixed Gain Video BUFFER AMPLIFIER With Disable
PDF  27 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  TI [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI - Texas Instruments

OPA690 데이터시트(HTML) 12 Page - Texas Instruments

Back Button OPA690 Datasheet HTML 8Page - Texas Instruments OPA690 Datasheet HTML 9Page - Texas Instruments OPA690 Datasheet HTML 10Page - Texas Instruments OPA690 Datasheet HTML 11Page - Texas Instruments OPA690 Datasheet HTML 12Page - Texas Instruments OPA690 Datasheet HTML 13Page - Texas Instruments OPA690 Datasheet HTML 14Page - Texas Instruments OPA690 Datasheet HTML 15Page - Texas Instruments OPA690 Datasheet HTML 16Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 12 / 27 page
background image
OPA3692
SBOS228E
12
www.ti.com
HIGH-SPEED INSTRUMENTATION AMPLIFIER
Figure 3 shows an instrumentation amplifier based on the
OPA3692. The offset matching between inputs makes this an
attractive input stage for this application. The differential-to-
single-ended gain for this circuit is 2.0V/V. The inputs are high
impedance, with only 1pF to ground at each input. The loads
on the OPA3692 outputs are equal for the best harmonic
distortion possible.
1/3
OPA3692
1/3
OPA3692
1/3
OPA3692
402
Ω
402
Ω
402
Ω
402
Ω
402
Ω
200
Ω
200
Ω
402
Ω
V
2
V
OUT
V
1
1/3
OPA3692
402
Ω
402
Ω
100
Ω
V
1
1/3
OPA3692
402
Ω
402
Ω
100
Ω
V
2
1/3
OPA3692
402
Ω
402
Ω
100
Ω
V
3
Selection
Logic
ADS826
10-Bit
60MSPS
0.1
µF
0.1
µF
4.99k
Ω
0.1
µF
4.99k
Ω
0.1
µF
100pF
REFT
+3.5V
REFB
+1.5V
+In
–In
CM
FIGURE 3. High-Speed Instrumentation Amplifier.
FIGURE 5. Multiplexed Converter Driver.
As shown in Figure 4, the OPA3692 used as an instrumenta-
tion amplifier has a 240MHz, –3dB bandwidth. This plot has
been made for a 1Vp-p output signal using a low-impedance
differential input source.
FIGURE 4. High-Speed Instrumentation Amplifier Response.
7
6
5
4
3
2
1
0
–1
–2
–3
Frequency (MHz)
1400
10
100
20log
V
OUT
|V
1 – V2|
MULTIPLEXED CONVERTER DRIVER
The converter driver in Figure 5 multiplexes among the three
input signals. The OPA3692s enable and disable times
support multiplexing among video signals. The make-before-
break disable characteristic of the OPA3692 ensures that the
output is always under control. To avoid large switching
glitches, switch during the sync or retrace portions of the
video signal—the two inputs should be almost equal at these
times. The output is always under control, so the switching
glitches for two 0V inputs are < 20mV. With standard
video signals levels at the inputs, the maximum differential
voltage across the disabled inputs will not exceed the
±1.2V
maximum rating.
The output resistors isolate the outputs from each other
when switching between channels. The feedback network of
the disabled channels forms part of the load seen by the
enabled amplifier, attenuating the signal slightly.



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27


데이터시트 다운로드

Go To PDF Page


링크 URL



ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크 투 데이터시트    |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com