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參數(shù)資料
| 型號(hào)： | EVAL-AD7751EB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Energy Metering IC With On-Chip Fault Detection |
| 中文描述： | 電能計(jì)量IC，帶有片上故障檢測(cè) |
| 文件頁(yè)數(shù)： | 3/16頁(yè) |
| 文件大?。?/td> | 249K |
| 代理商： | EVAL-AD7751EB |
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REV. A
–3–
AD7751
Parameter
A Version
B Version
Unit
Test Conditions/Comments
LOGIC OUTPUTS
4
F1 and F2
Output High Voltage, V
OH
I
SOURCE
= 10 mA
DV
DD
= 5 V
I
SINK
= 10 mA
DV
DD
= 5 V
4.5
4.5
V min
Output Low Voltage, V
OL
0.5
0.5
V max
CF, FAULT, and REVP
Output High Voltage, V
OH
I
SOURCE
= 5 mA
DV
DD
= 5 V
I
SINK
= 5 mA
DV
DD
= 5 V
4
4
V min
Output Low Voltage, V
OL
0.5
0.5
V max
POWER SUPPLY
AV
DD
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
NOTES
1
See Terminology section for explanation of specifications.
2
See plots in Typical Performance Characteristics graphs.
3
See Fault Detection section of data sheet for explanation of fault detection functionality.
4
Sample tested during initial release and after any redesign or process change that may affect this parameter.
Specifications subject to change without notice.
TIMING CHARACTERISTICS
1, 2
Parameter
t
13
t
2
t
3
t
43
t
5
t
6
A, B Versions
Unit
Test Conditions/Comments
275
See Table III
1/2 t
2
90
See Table IV
CLKIN/4
ms
sec
sec
ms
sec
sec
F1 and F2 Pulsewidth (Logic Low)
Output Pulse Period. See Transfer Function Section
Time Between F1 Falling Edge and F2 Falling Edge
CF Pulsewidth (Logic High)
CF Pulse Period. See Transfer Function Section
Minimum Time Between F1 and F2 Pulse
NOTES
1
Sample tested during initial release and after any redesign or process change that may affect this parameter.
2
See Figure 1.
3
The pulsewidths of F1, F2 and CF are not fixed for higher output frequencies. See Frequency Outputs section.
Specifications subject to change without notice.
.
t
2
.
t
3
t
4
.
t
5
.
t
6
t
1
F1
F2
CF
Figure 1. Timing Diagram for Frequency Outputs
(AV
DD
= DV
DD
= 5 V 5%, AGND = DGND = 0 V, On-Chip Reference, CLKIN = 3.58 MHz,
T
MIN
to T
MAX
= –40 C to +85 C)
ORDERING GUIDE
Package
Option
Model
Package Description
AD7751AAN
AD7751AARS
AD7751ABRS
EVAL-AD7751EB
AD7751AAN-REF
Plastic DIP
Shrink Small Outline Package
Shrink Small Outline Package
AD7751 Evaluation Board
AD7751 Reference Design
PCB (See AN-563)
N-24
RS-24
RS-24
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