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參數(shù)資料
| 型號： | AD7755 |
| 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量芯片) |
| 中文描述： | 電能計量IC脈沖輸出（帶脈沖輸出的高精度電子能量測量芯片） |
| 文件頁數(shù)： | 2/14頁 |
| 文件大?。?/td> | 260K |
| 代理商： | AD7755 |
AD7755–SPECIFICATIONS
1,4
B Version
-40°C to +85°C
Parameter
Units
Test Conditions/Comments
ACCURACY
Measurement Error
1
on Channel 1 and 2
Gain = 1
Gain = 2
Gain = 8
Gain = 16
Phase Error
1
Between Channels
V1 Phase Lead 37°
(PF = 0.8 Capacitive)
V1 Phase Lag 60°
(PF = 0.5 Inductive)
ac Power Supply Rejection
1
Output Frequency Variation (CF)
One Channel with Full Scale Signal (±500mV).
Over a dynamic range 500 to 1
Over a dynamic range 500 to 1
Over a dynamic range 500 to 1
Over a dynamic range 500 to 1
Line Frequency = 45Hz to 65Hz
0.2
0.2
0.3
0.3
%Reading typ
%Reading typ
%Reading typ
%Reading typ
±0.05
Degrees(°) max
AC/DC
= 0 and
AC/DC
= 1
±0.05
Degrees(°) max
AC/DC
= 0 and
AC/DC
= 1
AC/DC
= 1 , S0=S1=1, G0=G1=0
V1A=V1B=±100mV rms, V2P = ±100mV rms,
Ripple on AV
DD
of 250mV rms / 50Hz
AC/DC
= 1 , S0=S1=1, G0=G1=0
V1A=V1B=±100mV, V2P = ±100mV rms,
AV
DD
= AV
DD
±250mV
0.01
%Reading typ
dc Power Supply Rejection
1
Output Frequency Variation (CF)
0.01
%Reading typ
ANALOG INPUTS
Maximum Signal Levels
Input Impedance (dc)
Bandwidth
ADC Offset Error
1
Gain Error
1
Gain Error Match
1
See Analog Inputs Section
V1P, V1N, V2N and V2P to AGND
CLKIN = 3.58 MHz
CLKIN/1024, CLKIN = 3.58 MHz
See Terminology
External 2.5V reference, Gain=1, V1=V2=500mV dc
External 2.5V reference
±1
400
3.5
±10
±4
±0.3
V max
k
min
kHz typ
mV max
% Ideal typ
% Ideal typ
REFERENCE INPUT
REF
IN/OUT
Input Voltage Range
2.7
2.3
4
10
V max
V min
k
min
10
2.5 V +8%
2.5V -8%
Input Impedance
Input Capacitance
pF max
ON-CHIP REFERENCE
Reference Error
Temperature Coefficient
Nominal 2.5V
±200
55
mV max
ppm/°C typ
CLKIN
Input Clock Frequency
Note all specifications for CLKIN of 3.58MHz
4
1
MHz max
MHz min
LOGIC INPUTS
SCF, S0, S1,
AC/DC
,
RESET
, G0 and G1
Input High Voltage, V
INH
Input Low Voltage, V
INL
Input Current, I
Input Capacitance, C
IN
2.4
0.8
±3
10
V min
V max
μA max
pF max
DV
DD
= 5 V ± 5%
DV
DD
= 5 V ± 5%
Typically 10nA, V
IN
= 0V to DV
DD
LOGIC OUTPUTS
3
F1and F2
Output High Voltage, V
OH
I
=10mA
DV
DD
= 5V ±5%
I
= 10mA
DV
DD
= 5V ± 5%
4.5
V min
Output Low Voltage, V
OL
0.5
V max
CF and REVP
Output High Voltage, V
OH
I
=10mA
DV
DD
= 5V ±5%
I
=10mA
DV
DD
= 5V ± 5%
4
V min
Output Low Voltage, V
OL
1
V max
(AV
DD
= DV
DD
= 5V ± 5%, AGND = DGND = 0V, On-Chip Reference,
CLKIN = 3.58MHz, TMIN to TMAX = -40°C to +85°C)
-2-
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| AD7755AAN | 制造商:Rochester Electronics LLC 功能描述:ENERGY METERING IC WITH P - Bulk |
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