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參數(shù)資料
| 型號： | HCPL-786J-500 |
| 英文描述： | Optically Isolated Sigma-Delta Modulator |
| 中文描述： | 光隔離Σ-Δ調(diào)制器 |
| 文件頁數(shù)： | 12/18頁 |
| 文件大?。?/td> | 560K |
| 代理商： | HCPL-786J-500 |
12
Applications Information
Digital Current Sensing
As shown in Figure 16, using
the Isolated 2-chip A/D
converter to sense current can
be as simple as connecting a
current-sensing resistor, or
shunt, to the input and
reading output data through
the 3-wire serial output
interface. By choosing the
appropriate shunt resistance,
any range of current can be
monitored, from less than 1 A
to more than 100 A.
Even better performance can
be achieved by fully utilizing
the more advanced features of
the Isolated A/D converter,
such as the pre-trigger circuit,
which can reduce conversion
time to less than 1
μ
s, the fast
over-range detector for quickly
detecting short circuits,
different conversion modes
giving various resolution/speed
trade-offs, offset calibration
mode to eliminate initial offset
from measurements, and an
adjustable threshold detector
for detecting non-short circuit
overload conditions.
Figure 16. Typical Application Circuit.
R
SHUNT
INPUT
CURRENT
V
DD1
V
IN+
V
IN-
ISOLATED
+ 5 V
GND1
V
DD2
MCLK
MDAT
GND2
C1
0.1 μF
+
CDAT
SCLK
CCLK
V
DD
CLAT
CHAN
MCLK1
SDAT
MDAT1
CS
MCLK2
THR1
MDAT2
OVR1
GND
RESET
NON-ISOLATED
+ 5 V
C3
10 μF
+
HCPL-7860/
HCPL-786J
3-WIRE
SERIAL
INTERFACE
C2
0.1 μF
HCPL-0872
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HCPL-786J-500E | 功能描述:隔離放大器 Isolated Modulator RoHS:否 制造商:Texas Instruments 輸入補償電壓:1.5 mV 共模抑制比（最小值）:95 dB 帶寬:60 KHz 工作電源電壓:3.3 V 電源電流:8 mA 工作溫度范圍:- 40 C to + 105 C 安裝風格:SMD/SMT 封裝 / 箱體:SOP-8 封裝:Tube |
| HCPL-788J | 功能描述:隔離放大器 4.5 - 5.5 SV RoHS:否 制造商:Texas Instruments 輸入補償電壓:1.5 mV 共模抑制比（最小值）:95 dB 帶寬:60 KHz 工作電源電壓:3.3 V 電源電流:8 mA 工作溫度范圍:- 40 C to + 105 C 安裝風格:SMD/SMT 封裝 / 箱體:SOP-8 封裝:Tube |
| HCPL-788J#500 | 功能描述:隔離放大器 4.5 - 5.5 SV RoHS:否 制造商:Texas Instruments 輸入補償電壓:1.5 mV 共模抑制比（最小值）:95 dB 帶寬:60 KHz 工作電源電壓:3.3 V 電源電流:8 mA 工作溫度范圍:- 40 C to + 105 C 安裝風格:SMD/SMT 封裝 / 箱體:SOP-8 封裝:Tube |
| HCPL-788J/EVAL | 制造商:Avago Technologies 功能描述: |
| HCPL-788J-000E | 功能描述:隔離放大器 4.5 - 5.5 SV RoHS:否 制造商:Texas Instruments 輸入補償電壓:1.5 mV 共模抑制比（最小值）:95 dB 帶寬:60 KHz 工作電源電壓:3.3 V 電源電流:8 mA 工作溫度范圍:- 40 C to + 105 C 安裝風格:SMD/SMT 封裝 / 箱體:SOP-8 封裝:Tube |
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