View 5B39-03_920766.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

Isolated Current Output 5B39
FEATURES
Converts a High-level analog input voltage into a floating proportional output current. Output current of 4 to 20 mA or 0 to 20 mA across loads from 0 to 750. High Accuracy of +0.05%, Low nonlinearity of +0.02%. Module circuitry can withstand 240v rms at the input screwterminals. All 5B39 series modules are mix-and-match and Hot Swappable.
Figure 1. 5B39 Functional Block Diagram
APPLICATIONS
Industrial signal conditioning Industrial signal isolation Industrial signal filtering
There are also a number of backplanes and mounting sockets which provide a complete signal conditioning solution for end users. Each backplane incorporates screw terminals for field wiring inputs and outputs and cold junction sensors for thermocouple applications. These signal conditioners are designed to provide an easy and convenient solution to signal conditioning problems of both designers and end users in measurement and control applications. Typical uses include microcomputer-based measurement systems, standard data acquisition systems, programmable controllers, analog recorders and dedicated control systems. The 5 B series modules are ideally suited to applications where monitoring and control of temperature, pressure, flow, rotation and other analog signals are required. The 5B Series modules and backplanes are approved by Factory Mutual (FM) and the 5B Series modules are approved by the Canadian Standards Association (CSA) for use in Class 1, Division 2, Groups A, B, C, and D locations. These approvals certify that the 5B Series is suitable for use in locations where a hazardous concentration of flammable gas may exist only under fault conditions of operation. Equipment of this category is called "nonincendive" and they need no special enclosures or other physical safeguards. The 5B series modules and backplanes have been tested and passed the stringent heavy industrial requirements of the European Union's electromagnetic compatibility (ENC) directive - EN50082-1 and EN50081-2. When used according to installation directions (refer to 5B series User Manual), any errors caused by EMI/RFI interference will be less than 0.1% of the full scale 5B measurement range for field strengths up to 10 V/M and frequencies up to 1 GHz.
PRODUCT OVERVIEW
The 5B Series represents an innovative generation of low cost, high performance plug-in signal conditioners. Designed for industrial applications, these modules incorporate highly reliable transformer-based isolation and automated surfacemount manufacturing technology. They are compact, economical components whose performance exceeds that available from more expensive devices. Combining 1500 V rms continuous isolation, +0.05% calibrated accuracy, small size and low cost, the 5B Series is an attractive alternative to expensive signal conditioners and in-house designs All modules are potted and identical in pin-out and size (2.27" x 2.32" x 0.595"). They can be mixed and matched, permitting users to address their exact needs, and may be "hot swapped without disturbing field wiring or power. The isolated input modules provide 0 to +5V or +5V outputs and accept J, K, T, E, R, S, N, or B type thermocouples. These modules feature complete signal conditioning functions including 240 V rms input protection, filtering, chopper stabilized low drift +1 uV/oC amplification, 1500 V rms isolation, and sensor excitation when required. All modules feature excellent common mode rejection and meet industrial transient surge withstand specifications.
FUNCTIONAL BLOCK DIAGRAM
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. www.analog.com Tel: 781.329.4700 Fax: 781.326.8703 (c) 2004 Analog Devices, Inc. All rights reserved.
5B39 GENERAL DESCRIPTION
The 5B39 is a single-channel signal conditioning module that converts a high-level analog input voltage into a floating, isolated proportional output current of 4 to 20 mA or 0 to 20 mA across loads from 0 to 750. The module provides high accuracy of +0.05%, low nonlinearity of +0.02%, and the protection of 1500V rms isolation between output-to-input and output-to power supply. The input common must be held to within +1V of power common. Signal isolation by transformer coupling uses a proprietary modulation technique for linear, stable and reliable performance. A demodulator on the output side of the signal transformer recovers the original signal, which is then filtered and converted to an accurate current output by a current (V-toI) converter output stage. Output protection enables the 5B39 to withstand accidental connection to 240V rms power lines without damage, while isolating computer-side circuitry. In addition, the 5B39 is mix-and-match and hot-swappable with all 5B Series modules, so can be inserted or removed from any socket in the same backplane without disrupting system power. Track-and-Hold for DAC Applications - In applications where a single system digital-to-analog converter (DAC) is used to drive a number of current output channels, the 5B39 includes a . track-and-hold input circuit. Selected by a high Write Enable input, the hold mode exhibits an output droop rate of 80 uA/s. This corresponds to a refresh interval of 25 ms for 0.01% span droop. On power-up, the module's output remains at 0 mA for about 100 ms to allow the user to initialize the track-and-hold circuit. In applications using one DAC per channel, where the trackand-hold feature of the 5B39 is not used, the Write Enable input should be set to low by grounding it to power common, as on the 5B01 and 5B08 backplanes. The module current output will then track its input signal. Generating A Voltage Output Signal - The 0 to 20 mA output of the 5B39-04 and the 5B39-03, can produce a 0 to +10V output by connecting a 500 conversion resistor across the modules' output terminals,. This approach should be used with caution because the output lacks the low impedance of a true voltage source. This means that the tolerance and size of the load impedance relative to the conversion resistor can introduce significant error. For example, a load impedance < 500k would contribute <0.1% error.
.
Figure 2
Rev. 0 | Page 2 of 8
5B39
5B39 Models Available
5B39 Specifications (typical @ +25C and Vs = +5 V dc)
Description Input Voltage Ranges Input, Without Damage Input Resistance 0 V to +5 V or -5 V to +5 V -10 V to +10 V, maximum 10 M Output Ranges Standard Ranges Custom Ranges Output Over-range Capability Output Load Resistance Range Voltage Output Protection Output Under Fault 4 mA to 20 mA or 0 mA to 20 mA Not Available 10% 0 to 650 (Vs > +4.75 V) 0 to 750 (Vs > +4.95 V) Continuous Short to Ground 26 mA maximum Output Protection Normal Mode, Continuous Transient Accuracy Initial @ +25C Nonlinearity Zero vs. Temperature Span vs. Temperature Noise Output Ripple, 100 Hz Bandwidth Bandwidth, -3 dB Output Rise Time, 10% to 90% Span 30 A peak-peak 400 Hz 2 ms Common-Mode Voltage (CMV) Output-to-Input and Power Supply Input-to-Power, Continuous2 Output Transient Protection 1500 V rms, maximum 1 V, maximum ANSI/IEEE C37.90.1-1989 Common Mode Rejection (CMR) 1 k Source Imbalance, 50/60 Hz Normal Mode Rejection (NMR) Rev. 0 | Page 3 of 8 90 dB -3 dB @ 400 Hz
1
Model 5B39
240 V rms, maximum ANSI/IEEE C37.90.1-1989
0.05% Span 0.02% Span 0.5 A/C 0.002% of Reading/C
5B39
Sample and Hold
Output Droop Rate Acquisition Time 80 A/s 50 s
Track-and-Hold Enable Control
Max Logic "0" Min Logic "1" Max Logic "1" Input Current "0" Power Supply Voltage Power Supply Current Power Supply Sensitivity, RTI Mechanical Dimensions +1 V +2.5 V +36 V 1.5 mA +5 V 5% 170 mA 0.25A/Vs% 2.275" x 2.375" x 0.595" (57.8 mm x 59.1 mm x 15.1 mm)
Environmental Temperature Range
Rated Performance Operating Storage Relative Humidity RFI Susceptibility Includes the combined effects of repeatability, hysteresis, and nonlinearity. The input common must be kept within 1 V of power common. Specifications subject to change without notice.
2 1
-25C to +85C -40C to +85C -40C to +85C 0 to 93% @ +40C non-condensing 0.5% Span error @ 400 MHz, 5 Watt, 3 ft
Rev. 0 | Page 4 of 8
5B39 PIN CONFIGURATIONS AND FUNCTIONAL DESCRIPTIONS
Figure 3 5B39 Input Field Connections
Table 1. Pin Function Descriptions--
Pin No. 1 2 Description LO OUT HI OUT
Figure 4 . Model 5B Series Module, with pin-out assignments.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
Rev. 0 | Page 5 of 8
5B39 OUTLINE DIMENSIONS
Figure 5. Outline Dimensions
5B32 Models Available Model
5B32-01 5B32-02 5B32-Custom
* Custom Input/Output ranges are available. Refer to configuration guide.
Input Range
4 mA to 20 mA 0 mA to 20 mA *
Output Range
0 V to +5 V 0 V to +5 V *
Rev. 0 | Page 6 of 8
5B39 NOTES
Rev. 0 | Page 7 of 8
5B39 NOTES
(c) 2004 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective companies. D05100-0-9/04(0)
Rev. 0 | Page 8 of 8
This datasheet has been download from: www..com Datasheets for electronics components.

▲Up To Search▲

Price & Availability of 5B39-03

	To Download 5B39-03 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .