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5B36-03 |5B3603ADN/a13avaiPotentiometer or Slidewire Input Signal Conditioning Module

5B36-03 ,Potentiometer or Slidewire Input Signal Conditioning ModuleGENERAL DESCRIPTION output and input-power; 250V rms between power and output The 5B36 is a single ..
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Potentiometer or Slidewire Input Signal Conditioning Module
Isolated, Potentiometer InputRev. 0
Amplifies, Protects, Filters, and Isolates a wide variety of
three-wire potentiometers and two-wire rheostats
Generates a low-impedance output of 0 to +5V.
Module circuitry can withstand 240v rms at the input screw-
All 5B36 series modules are mix-and-match and Hot

Industrial signal conditioning
Industrial signal isolation
Industrial signal filtering


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 surface-
mount 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.

Figure 1. 5B36 Functional Block Diagram
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.
The 5B36 is a single-channel signal conditioning module that
amplifies, isolates, filters, buffers a wide variety of three-wire
potentiometers and two-wire rheostats (slidewires). The module
provides an accurately scaled, low-noise low-impedance output
of 0 to +5V.
Accurate and Stable Performance – The 5B36 supplies

protected potentiometer / slidewire excitation from a pair of
closely matched precision current sources designed to cancel
errors due to lead resistances. A low-drift chopper-stabilized
differential amplifier allows use of a very low excitation current
to minimize error due to potentiometer self-heating. The
amplifiers low input offset drift (+0.004 Ω /oC) and gain drift of
30 ppm/oC assure accuracy over the full operating temperature
True Three-Port Isolation – The floating, differential input

circuit on the field side eliminates the need for any input
grounding. Signal and power isolation by transformer coupling
uses a proprietary modulation technique for linear, stable and
reliable performance. A demodulator on the computer side of
the signal transformer recovers the original signal, which is then
filtered and buffered to provide a low-noise, low-impedance
output signal. True three-port isolation (Input-Output-Power)
includes common-mode rating of : 1500V rms between input-
output and input-power; 250V rms between power and output
– no return path is required between the power and signal
output commons.
Filtering and Protection – An optimized five-pole Butterworth

filter (with a 4-Hz bandwidth) provides 116 dB of normal-mode
rejection (noise on signal) at 60 Hz and 108 dB at 50. Output
noise is an exceptionally low 0.3 mV pk-pk in a 100 kHz
bandwidth and 6 mV pk-pk in a 5 MHz bandwidth.
The 5B36 protects the computer side from damage due to field-
side over-voltage faults. The module withstands 240V rms at the
input terminals without damage, thereby shielding the internal
computer-side circuitry from field-side over-voltage conditions.
In addition, the 5B36 is mix-and-match and hot swappable with
all other 5B Series modules, so can be inserted or removed from
any socket in the same backplane without disrupting system
A series output switch eliminates the need for external
multiplexing in many applications. The switch is turned on by
an active-low enable input. If the switch is to be on at all times,
the enable-input should be grounded to power common as it is
on the 5B01 and 5B08 backplanes..
Figure 2
5B36 Models Available
Model Input Range Output Range

5B36-01 0 Ω to 100 Ω 0 V to +5 V
5B36-02 0 Ω to 500 Ω 0 V to +5 V
5B36-03 0 Ω to 1 kΩ 0 V to +5 V
5B36-04 0 Ω to 10 kΩ 0 V to +5 V
5B36-Custom * *
* Custom Input/Output ranges are available. Refer to configuration guide.
5B36 Specifications
(typical @ +25°C and Vs = +5 V dc)
Description Model 5B36
Input Ranges

Standard Ranges 0 Ω to 10 kΩ (Refer to Model Table)
Custom Ranges 0 Ω to 10 kΩ (Refer to Ordering Section)
Output Range (RL > 50 kΩ) 0 V to +5 V
Initial @ +25°C ±0.08% Span
Input Offset vs. Temperature
100 Ω, 500 Ω, 1 kΩ Sensors ±0.004 Ω /°C
10 kΩ Sensor ±0.01 Ω /°C
Output Offset vs. Temperature ±20 µV/°C
Gain vs. Temperature ±0.003% of Reading/°C
Input Resistance

Power On > 1000 MΩ
Power Off 200 kΩ
Overload 200 kΩ

Input, 0.1 Hz to 10 Hz Bandwidth 0.2 µV rms
Output, 100 kHz Bandwidth 100 µV rms (0.3 mV peak-peak)
Output, 1 MHz Bandwidth 1.5 mV peak-peak
Output, 5 MHz Bandwidth 6 mV peak-peak
Bandwidth, -3 dB 4 Hz
Output Rise Time, 10% to 90% Span 100 ms
Common-Mode Voltage (CMV)
Input-to-Power, Continuous 1500 V rms, maximum
Output-to-Power, Continuous2 250 V rms, maximum
Transient ANSI/IEEE C37.90.1-1989
Common Mode Rejection (CMR)

1 kΩ Source Imbalance, 50/60 Hz 170 dB
Normal Mode Rejection (NMR) 116 dB @ 60 Hz; 108 dB @ 50 Hz
Sensor Excitation Current

100 Ω, 500 Ω, 1 kΩ Sensors 0.25 mA
10 kΩ Sensor 0.1 mA
Lead Resistance Effect

100 Ω, 500 Ω, 1 kΩ Sensors ±0.005 Ω /Ω
10 kΩ Sensor ±0.01 Ω /Ω
Input Protection

Continuous 240 V rms, maximum
Transient ANSI/IEEE C37.90.1-1989
Output Resistance 25 Ω
Voltage Output Protection Continuous Short to Ground
Output Current Limit ±9 mA
Output Selection Time 6 µs to ±1 mV of Vout @ Cload = 0 to 2,000 pF
Output Enable Control2

Max Logic "0" +0.8 V
Min Logic "1" +2.4 V
Max Logic "1" +100 V
Input Current "0", "1" 0.5 µA
Power Supply Voltage +5 V dc ±5%
Power Supply Current 15 mA
Power Supply Sensitivity, RTI ±2 µV/% of Vs
Mechanical Dimensions 2.275" x 2.375" x 0.595" (57.8 mm x 59.1 mm x 15.1 mm)
Temperature Range

Rated Performance -40°C to +85°C
Operating -40°C to +85°C
Storage -40°C to +85°C
Relative Humidity 0 to 93% @ +40°C non-condensing
RFI Susceptibility ±0.5% Span error @ 400 MHz, 5 Watt, 3 ft
* ±0.025 Ω For Cu RTD's; ±0.1 Ω For Ni RTD's. Includes the combined effects of repeatability, hysteresis, and nonlinearity error. Loads heavier than 50 kΩ will degrade nonlinearity and gain temperature coefficient. The user's board layout must separate Power Common from Output Common. When the output switch is not used, connect the Enable Input to the Output Common. Output Common is connected to power common when the 5B36 is installed on a 5B Series backplane.
Figure 3 5B36 Input Field Connections
Table 1. Pin Function Descriptions—

Figure 4 . Model 5B Series Module, with pin-out assignments.

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.
Figure 5. Outline Dimensions
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