5B36

·Amplifies, Protects, Filters, and Isolates a wide variety of three-wire potentiometers and two-wire rheostats (slidewires).
·Generates a low-impedance output of 0 to +5V.
·Module circuitry can withstand 240v rms at the input screwterminals.
·All 5B36 series modules are mix-and-match and Hot
·Swappable.

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 5B36 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 of 5B36 allows use of a very low excitation current to minimize error due to potentiometer self-heating. The amplifiers low input offset drift (+0.004 /oC) and gain drift of 30 ppm/oC assure accuracy over the full operating temperature range.

True Three-Port Isolation The floating, differential input circuit of 5B36 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 of 5B36 (Input-Output-Power) includes common-mode rating of : 1500V rms between inputoutput and input-power; 250V rms between power and output no return path of 5B36 is required between the power and signal output commons.

Filtering and Protection An optimized five-pole Butterworth filter of 5B36 (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 of 5B36 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 fieldside over-voltage faults. The 5B36 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 power.

A series output switch of 5B36 eliminates the need for external multiplexing in many applications. The switch is turned on by an active-low enable input. If the switch of 5B36 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..