參數(shù)資料
型號(hào)： HCPL-786J-XXXE
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)： 1/18頁
文件大小： 560K
代理商： HCPL-786J-XXXE
Agilent HCPL-7860/HCPL-786J
Optically Isolated
Sigma-Delta (
Σ
) Modulator
Data Sheet
Features
12-bit Linearity
200 ns Conversion Time (Pre-
Trigger Mode 2 with HCPL-0872)
12-bit Effective Resolution with 5
μ
s Signal Delay (14-bit with 102
μ
s) (with HCPL-0872)
Fast 3
μ
s Over-Range Detection
(with HCPL-0872)
± 200 mV Input Range with Single
5 V Supply
1% Internal Reference Voltage
Matching
Offset Calibration (with HCPL-
0872)
-40°C to +85°C Operating
Temperature Range
15 kV/
μ
s Isolation Transient
Immunity
Safety Approval: UL 1577, CSA
and IEC/EN/DIN EN 60747-5-2
Applications
Motor Phase and Rail Current
Sensing
Data Acquisition Systems
Industrial Process Control
Inverter Current Sensing
General Purpose Current Sensing
and Monitoring
Description
The HCPL-7860/HCPL-786J
Optically Isolated Modulator
and HCPL-0872 Digital
Interface IC or digital filter
together form an isolated
programmable two-chip
analog-to-digital converter. The
isolated modulator allows
direct measurement of motor
phase currents in power
inverters.
In operation, the HCPL-7860/
HCPL-786J Isolated Modulator
(optocoupler with 3750 V
RMS
dielectric withstand voltage
rating) converts a low-
bandwidth analog input into a
high-speed one-bit data stream
by means of a Sigma-Delta (
Σ
) over-sampling modulator.
This modulation provides for
high noise margins and
excellent immunity against
isolation-mode transients. The
modulator data and on-chip
sampling clock are encoded
and transmitted across the
isolation boundary where they
are recovered and decoded
into separate high-speed clock
and data channels.
A 0.1 μF bypass capacitor must be connected between pins V
DD
and Ground
CAUTION: It is advised that normal static precautions be taken in handling and assembly
of this component to prevent damage and/or degradation, which may be induced by ESD.
SPI and QSPI are trademarks of Motorola Corp.
Microwire is a trademark of National Semiconductor Inc.
SIGMA
DELTA
MOD./
ENCODE
DECODE
1
2
3
4
8
7
6
5
Input
Current
HCPL-0872
or
Digital Filter
MCU
or
DSP
HCPL-7860
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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(bǔ)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(fēng)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(bǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:SOP-8 封裝:Tube
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