파트넘버.co.kr 7B40 데이터시트 PDF


7B40 반도체 회로 부품 판매점

Isolated Voltage or Current Input



Analog Devices 로고
Analog Devices
7B40 데이터시트, 핀배열, 회로
www.DataSheet4U.com
Isolated Voltage or Current Input
FEATURES
Interfaces, amplifies and filters unipolar and bipolar millivolt
and voltage inputs.
Module provides a precision output of either +1 V to +5 V or
0 V to +10 V.
All 7B40 series modules are mix-and-match and Hot
Swappable.
APPLICATIONS
Industrial signal conditioning
Industrial signal isolation
Industrial signal filtering
PRODUCT OVERVIEW
The 7B Series of signal conditioners feature small size, low cost
and a wide output voltage range for a variety of applications
including process control and factory-floor environments. The
single-channel 7B modules accept inputs from a range of
transducers and are fully rated over the extended -40oC to
+85oC industrial temperature range. All 7B Series modules are
rated for a nominal power supply input of +24 VDC; and, for
maximum flexibility, they will accept supply voltages in the +14
VDC to +35 VDC range. The input modules, with the exception
of the 7B21, provide a high-level output voltage that is factory
configured for either the +1 V to +5 V or 0 V to +10 V range.
The 7B21 is a unity gain, isolated input module with an
input/output range of +10V. Output modules are available that
provide either isolated process current or isolated bipolar
voltage output. Model 7B39 converts either a +1 V to +5 V input
to a 4 to 20 mA output or a 0 V to +10 V input to a 0-20 mA
output. The input/output ranges of the 7B39 are factory
configured. The 7B22 is a unity gain module that provides an
isolated +10V output signal. All modules have a universal pin-
out and may be readily hot-swapped under full power without
disrupting field wiring. Each module accepts analog transducer
signals and transfers them to a process control or factory data
collection system without the inherent noise, non-linearity, drift
and extraneous voltages which frequently accompany the
signals.
7B40
FUNCTIONAL BLOCK DIAGRAM
Figure 1. 7B40 Functional Block Diagram
The modules feature a maximum nonlinearity of +0.02% and
are factory calibrated to guarantee a maximum accuracy
specification of +0.1%.
The 7B Series offers up to 1500 V rms continuous common
mode voltage isolation and 120 V rms of field wiring input
protection. The power supplies necessary to drive each of the
individual module’s input circuitry are internally isolated,
enabling the 7B Series modules to offer true channel-to-channel
isolation of the input signals.
The modules directly accept analog signals from
thermocouples, RTDs, current loop powered transmitters, and
other process control signals. The 7B Series modules amplify,
linearize, isolate, protect and convert the transducer output
signals to standardized analog inputs for high-level analog I/O
subsystems. The 7B Series Subsystem consists of 19-inch rack-
compatible hardware (model AC 1363), with universal
mounting backplane and a family of plug-in (up to 16 per
backplane) input and output signal conditioning modules. Four-
, eight-, and sixteen-channel backplanes are available. Each
backplane incorporates screw terminals for easy power
connections and field wiring, and includes a 25-pin D-type
connector for interfacing the high-level single-ended voltage
outputs to the user’s equipment. Gold-plated sockets are
provided on each channel of the backplane to ensure the
reliability of each module’s electrical connection.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.


7B40 데이터시트, 핀배열, 회로
GENERAL DESCRIPTION
The 7B40 is a single-channel signal conditioning module that
interfaces, amplifies and filters unipolar and bipolar millivolt
and voltage inputs and provides a protected precision output of
either +1 V to +5 V or 0 V to +10 V. Model 7B40 features a
nonlinearity of +0.02% maximum and an accuracy of +0.1%
maximum (+0.01% typical). To accurately measure low level
signals in electrically noisy environments, 1500 V rms of
galvanic transformer-based isolation with a common mode
rejection (CMR) of 110 dB @50/60 Hz and a normal mode
rejection (NMR) of 100 dB @50/60 Hz are provided. Rated to
operate with a nominal +24 VDC supply, Model 7B40 is mix-
and-match and hot-swappable with other 7B Series input
modules, so it can be inserted or removed from any socket in
the same backplane without disturbing system power.
The floating differential input of Model 7B40 is fully protected
up to 240 V rms line voltage. A one-pole 10 KHz filter
preconditions the input signal prior to amplification by a low
drift input amplifier. Amplitude modulation is used to
7B40
implement transformer isolation (1500 V rms input-to-output
and power). Isolated front-end circuitry power is supplied by a
DC/DC converter. The output section contains a four-pole low
pass filter (-3 dB @ 10KHz), a buffer amplifier and a power
oscillator. The four-pole output filter and subsequent buffer
ensures that a low noise, low impedance (<1) signal is
available at the output to drive loads of 2 kminimum.
Figure 2
Rev. 0 | Page 2 of 8




PDF 파일 내의 페이지 : 총 8 페이지

제조업체: Analog Devices

( analogs )

7B40 data

데이터시트 다운로드
:

[ 7B40.PDF ]

[ 7B40 다른 제조사 검색 ]




국내 전력반도체 판매점


상호 : 아이지 인터내셔날

전화번호 : 051-319-2877

[ 홈페이지 ]

IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈

( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )

전력반도체 문의 : 010-3582-2743



일반적인 전자부품 판매점


디바이스마트

IC114

엘레파츠

ICbanQ

Mouser Electronics

DigiKey Electronics

Element14


관련 데이터시트


7B40

Isolated Voltage or Current Input - Analog Devices



7B40T

Diode ( Rectifier ) - American Microsemiconductor



7B41

Isolated - Voltage or Current Input



7B41

Isolated Voltage or Current Input - Analog Devices



7B47

Linearized Thermocouple Input - Analog Devices