參數(shù)資料
型號： CS5460A-BS
廠商： CIRRUS LOGIC INC
元件分類： ADC
英文描述： Single Phase Bi-Directional Power/Energy IC
中文描述： 2-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO24
封裝： MO-150, SSOP-24
文件頁數(shù)： 30/54頁
文件大?。?/td> 876K
代理商： CS5460A-BS
CS5460A
30
pins of the voltage/current channels to their ground
reference level. (See Figure 17.)
Offset and gain calibration cannot be done at the
same time. This will cause undesirable calibration
results.
3.8.7 Description of Calibration Algo-
rithms
The computational flow of the CS5460A’s AC and
DC gain/offset calibration sequences are illustrat-
ed in Figure 18. This figure applies to both the volt-
age channel and the current channel. The
following descriptions of calibration sequences will
focus on the voltage channel, but apply equally to
the current channel.
Note: For proper calibration, it is assumed that the value
of the Voltage-/Current-Channel Gain Registers
are set to default (1.0) before running the gain
calibration(s), and the value in the
Voltage-/Current Channel AC and DC Offset
Registers is set to default (0) before running
calibrations. This can be accomplished by a
software or hardware reset of the device. The
values in the voltage/current calibration registers
do affect the results of the calibration sequences.
3.8.7.1 AC Offset Calibration Sequence
The idea of the AC offset calibration is to obtain an
offset value that reflects the square of the RMS
output level when the inputs are grounded. During
normal operation, when the CS5460A is calculat-
ing the latest result for the RMS Voltage Register,
this AC offset register value will be subtracted from
the square of each successive voltage sample in
order to nullify the AC offset that may be inherent
in the voltage-channel signal path. Note that the
value in the AC offset register is proportional to the
square of the AC offset.
First, the inputs are grounded, and then the AC off-
set calibration command is sent to the CS5460A.
When the AC offset calibration sequence is initiat-
ed, a valid RMS Voltage Register value is acquired
and squared. This value is then subtracted from
the square of each voltage sample that comes
through the RMS data path. See Figure 18.
+
-
XGAIN
+
-
External
Connections
+
-
AIN+
AIN-
CM
+
Full Scale
(DC or AC)
Figure 16. System Calibration of Gain.
+
-
XGAIN
+
-
External
Connections
0V
+
AIN+
AIN-
CM
+
Figure 17. System Calibration of Offset.
In
Modulator
+
x
to V*, I*, P*, E* Registers
Filter
N
VRMS
N
Σ
÷
SINC
DC Offset*
Gain*
+
X
2
-X
1
x
N
AC Offset*
X
2
0.6
x
+
+
-
+
2
*
÷
* Denotes readable/writable register
X
N
Figure 18. Calibration Data Flow
相關(guān)PDF資料
PDF描述
CS5460A Single Phase Bi-Directional Power/Energy IC
CS5460 Single Phase Bi-Directional Power/Energy IC(單相雙向功率/能量IC)
CS5461A-IS Single Phase, Bi-directional Power/Energy IC
CS5461A-ISZ Single Phase, Bi-directional Power/Energy IC
CS5461A Single Phase, Bi-directional Power/Energy IC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CS5460A-BSZ 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 Single-Phase Bi-Dir Power/Energy IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel
CS5460A-BSZ 制造商:Cirrus Logic 功能描述:Driver IC 制造商:Cirrus Logic 功能描述:IC ENERGY METERING 1PHASE 24SSOP 制造商:Cirrus Logic 功能描述:IC, ENERGY METERING, 1PHASE, 24SSOP
CS5460A-BSZR 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 IC Sngl-Phs BiDirect PWR/Energy RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel
CS5460-BS 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Cirrus Logic 功能描述:
CS5460C-ISZ 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 Sngl-Phs Bi-Drctnl Power/Energy RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel
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