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參數資料
| 型號： | AD7755ABRS |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | Energy Metering IC with Pulse Output |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO24 |
| 封裝： | SSOP-24 |
| 文件頁數： | 6/16頁 |
| 文件大小： | 250K |
| 代理商： | AD7755ABRS |
REV. B
AD7755
–6–
Pin No.
Mnemonic
Description
21
DGND
This provides the ground reference for the digital circuitry in the AD7755, i.e., multiplier, filters and
digital-to-frequency converter. This pin should be tied to the analog ground plane of the PCB. The
digital ground plane is the ground reference for all digital circuitry, e.g., counters (mechanical and
digital), MCUs and indicator LEDs. For good noise suppression the analog ground plane should only
be connected to the digital ground plane at one point only, e.g., a star ground.
Calibration Frequency Logic Output. The CF logic output gives instantaneous real power informa-
tion. This output is intended to be used for calibration purposes. Also see SCF pin description.
Low Frequency Logic Outputs. F1 and F2 supply
average real power
information. The logic outputs
can be used to directly drive electromechanical counters and two phase stepper motors. See Transfer
Function section.
22
CF
23, 24
F2, F1
PIN CONFIGURATION
DIP and SSOP Packages
TOP VIEW
(Not to Scale)
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
AD7755
NC = NO CONNECT
DV
DD
AC/
DC
AV
DD
NC
F1
V1P
V1N
V2N
V2P
RESET
REF
IN/OUT
AGND
SCF
F2
CF
DGND
REVP
NC
CLKOUT
CLKIN
G0
G1
S0
S1
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7755AN | 制造商:Rochester Electronics LLC 功能描述:ENERGY METERING IC WITH P - Bulk |
| AD7755ARS | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD7756AN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD7756ARS | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD775JN | 制造商:Analog Devices 功能描述:ADC SGL PIPELINED 20MSPS 8BIT PARALLEL 24PDIP - Bulk 制造商:Rochester Electronics LLC 功能描述:8-BIT 20 MSPS, 60 MW SAMPLING A/D CONVERTER - Bulk |
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