參數(shù)資料
型號(hào): AD7755(中文)
廠商: Analog Devices, Inc.
英文描述: Energy Metering IC with Pulse Output(帶脈沖輸出的高精度電子能量測(cè)量芯片)
中文描述: 電能計(jì)量IC脈沖輸出(帶脈沖輸出的高精度電子能量測(cè)量芯片)
文件頁(yè)數(shù): 6/19頁(yè)
文件大?。?/td> 447K
代理商: AD7755(中文)
==99-11-12==
P&S
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P &S
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μ :
ot±±ooêD×μèa· 15o
D :
ooêD70020D
óê±à:
430079
μ°:
( 86) ( 027£87493500 87493506
( 86) ( 027) 87491166, 87493497
P &S
í í :
http://www.p8s.com
Dé±í
Parameter
POWER SUPPLY
AV
DD
A Version
B Version
Units
Test Conditions/Comments
For Specified Performance
5 V 5%
5 V + 5%
5 V 5%
5 V + 5%
Typically 2 mA
Typically 1.5 mA
4.75
5.25
4.75
5.25
3
2.5
4.75
5.25
4.75
5.25
3
2.5
V min
V max
V min
V max
mA max
mA max
DV
DD
AI
DD
DI
DD
×¢êí£o
1.
1óúìDêyμμ÷ °êó ±ú £
2.
μDíDüíDμú £
3.
μ±aê ¢DDoíDT éèòéüó°ì aDêyμ1¤ò ±oóDDù 2aê £
4.
ìDèóD ± 2í¨ £
2. 3 AD7755μ¨ê±ìD
£¨
AV
DD
=DV
DD
=5V
à
5%
AGND=DGND=0V
£úù×£
CLKIN=3.58MHz
T
MIN
á
T
MAX
=-40
á
+85
Parameter
A, B Versions
Units
Test Conditions/Comments
t
13
275
ms
F1 and F2 Pulsewidth Logic Low)
t
2
See Table III
sec
Output Pulse Period. See Transfer Function Section
t
1/2 t
2
sec
Time Between F1 Falling Edge and F2 Falling Edge
t
3
90
ms
CF Pulsewidth Logic High)
t
5
See Table IV
sec
CF Pulse Period. See Transfer Function Section
t
6
CLKIN/4
sec
Minimum Time Between F1 and F2 Pulse
1 ¢2
×¢êí£o
1.
μ±aê ¢DDoíDT éèò1¤ò ±oóDDù 2aê£aéüó°ì aDêy £
2.
í
1
3.
μê3μê£
F1
F2
CF
μ3í è2¢21ì¨ £ °μêê3 ±ú £
.
t
2
.
t
3
t
4
.
t
5
.
t
6
t
1
F1
F2
CF
í
1
μêê3μ¨ê±í
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