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부품번호 | FOD0708 기능 |
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기능 | (FOD0708 / FOD0738) Optocouplers consist of an AlGaAs LED optically coupled to a high speed trans-impedance amplifier and voltage comparator | ||
제조업체 | Fairchild Semiconductor | ||
로고 | |||
전체 11 페이지수
January 2006
FOD0708 Single Channel CMOS Optocoupler
FOD0738 Dual Channel CMOS Optocoupler
Features
■ +5 V CMOS compatibility
■ 15 ns typical pulse width distortion
■ 30 ns max. pulse width distortion
■ 40 ns max. propagation delay skew
■ High speed: 15 MBd
■ 60 ns max. propagation delay
■ 10 kV/µs minimum common mode rejection
■ –40°C to 100°C temperature range
■ UL approved (file #E90700)
Applications
■ Line receivers
■ Pulse transformer replacement
■ Output interface to CMOS-LSTTL-TTL
■ Wide bandwidth analog coupling
General Description
The FOD0708 and FOD0738 optocouplers consist of an
AlGaAs LED optically coupled to a high speed trans-
impedance amplifier and voltage comparator. These
optocouplers utilize the latest CMOS IC technology to
achieve outstanding performance with very low power
consumption. The devices are housed in a compact
8-pin SOIC package for optimum mounting density.
Package Dimensions
0.164 (4.16)
0.144 (3.66)
Pin 1
0.202 (5.13)
0.182 (4.63)
0.143 (3.63)
0.123 (3.13)
0.019 (0.48)
0.010 (0.25)
0.006 (0.16)
0.021 (0.53)
0.011 (0.28)
0.008 (0.20)
0.003 (0.08)
0.050 (1.27)
TYP
0.244 (6.19)
0.224 (5.69)
Lead Coplanarity : 0.004 (0.10) MAX
NC 1
ANODE 2
CATHODE 3
NC 4
FOD0708
8 VDD
7 NC
6 VO
5 GND
ANODE 1 1
CATHODE 1 2
CATHODE 2 3
ANODE 2 4
FOD0738
8 VDD
7 VO 1
6 VO 2
5 GND
TRUTH TABLE
LED
OFF
ON
VO, OUTPUT
L
H
Note: A 0.1µF bypass capacitor
must be connected between
pins 5 and 8.
©2005 Fairchild Semiconductor Corporation
FOD0708 Single Channel CMOS Optocoupler Rev. 1.0.6
1
www.fairchildsemi.com
Typical Characteristics
Figure 1. FOD0708
Typical Input Threshold Current
vs Ambient Temperature
7
VDD = 5V
IOL = 20µA
6
5
4
3
2
-40 -20 0 20 40 60 80 100
TA - Ambient Temperature (oC)
Figure 2. FOD0708
Typical Switching Speed vs Pulse Input Current
100
VDD = 5V
TA = 25oC
80
60
40
20
0
5
tPHL
tPLH
PWD
7 9 11 13
IF - Pulse Input Current (mA)
15
Figure 3. FOD0708
Typical Logic Low Output Supply Current
vs Ambient Temperature
5.0
VDD = 5V
IF = 12mA
4.5
4.0
3.5
3.0
2.5
2.0
-40
-20 0 20 40 60 80
TA - Ambient Temperature (oC)
100
Figure 4. FOD0708
Typical Logic High Output Supply Current
vs Ambient Temperature
5.0
VDD = 5V
4.5
4.0
3.5
3.0
2.5
2.0
-40
-20 0 20 40 60 80
TA - Ambient Temperature (oC)
100
FOD0708/FOD0738 Rev. 1.0.6
4
www.fairchildsemi.com
4페이지 Pulse Gen.
tf = tr = 5 ns
ZO = 50 Ω
IF
Input
Monitor
Node
RIN
1
2
3
4
Vcc
Pulse Gen.
ZO = 50 Ω
tf = tr = 5 ns
IF
8
Input
7 0.1µF Monitoring
Output
Node
6 Monitoring
Node
RIN
5
Test Circuit for FOD0708
IF = 12mA
Vcc Input
50%
18
t PHL
Output
2 7 Monitoring
Node
tPLH
3 6 0.1µF
Bypass
90%
90%
45
Output
10%
tf
10%
2.5V CMOS
VOL
tr
Test Circuit for FOD0738
Waveforms
Fig. 10 Test Circuit and Waveforms for tPLH, tPHL, tr and tf.
A
B
VFF
IF
1
2
3
VCC
8
7 0.1µF
bypass
6
45
GND
VCM
Pulse Gen
Test Circuit for FOD0708
VCM
0V
+5V
Output
(VO)
IF
B
A
VFF
Peak
Dual Channel
1
8
27
36
45
VCM
+–
Pulse
Generator
ZO = 50Ω
Test Circuit for FOD0738
+5V
0.1µF
Bypass
Output VO
Monitoring
Node
VOH
Switching Pos. (A), IF= 0
VO
VO (Min)
VO (Max)
VO Switching Pos. (B), IF = 12 mA
VOL
Fig. 11 Test Circuit Common Mode Transient Immunity
(FOD0708 and FOD0738)
CM H
CM L
FOD0708/FOD0738 Rev. 1.0.6
7
www.fairchildsemi.com
7페이지 | |||
구 성 | 총 11 페이지수 | ||
다운로드 | [ FOD0708.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
FOD0708 | (FOD0708 / FOD0738) Optocouplers consist of an AlGaAs LED optically coupled to a high speed trans-impedance amplifier and voltage comparator | Fairchild Semiconductor |
FOD070L | (FOD070L - FOD270L) LVTTL/LVCMOS COMPATIBLE LOW INPUT CURRENT HIGH GAIN SPLIT DARLINGTON OPTOCOUPLERS | Fairchild Semiconductor |
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