5B41-01 Analog Devices Inc, 5B41-01 Datasheet - Page 2

• Manufacturer Part Number: 5B41-01
• Manufacturer: Analog Devices Inc

Specifications of 5B41-01

• Lead Free Status / RoHS Status: Not Compliant

GENERAL DESCRIPTION
The 5B40 and 5B41 are wide-bandwidth single-channel signal
conditioning modules that amplify, protect, filter and isolate
analog input voltages. Both modules provide a 10 kHz
bandwidth which ideally suits them to measuring signals that
vary rapidly with time. Examples include pressure inside a
plastic injection molding machine, strain on an automobile
chassis during a crash test and vibrations on a machine bearing
shortly before failure.
The 5B40 and 5B41 protect the computer side from damage due
to field-side over-voltage faults. All models withstand 240V rms
at their input terminals without damage thereby shielding
computer-side circuitry from field-side over-voltage conditions.
In addition, 5B40 and 5B41 Series modules are mix-and-match
and hot swappable, so can be inserted or removed from any
socket in the same backplane without disrupting system power.
A chopper-stabilized input amplifier provides low drift and
stable gain. At the amplifier input, a stable, laser-trimmed zero-
scale input offset is subtracted from the input signal to set the
zero-scale value. For user convenience, the zero can be
optionally factory-set to meet custom needs, This allows
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suppression of a zero-scale input value many times larger than
the total span for precise expanded-scale measurements.
A single-pole anti-aliasing filter resides at each modules input.
A three-pole, low-pass filter in the output stage sets the
bandwidth and yields optimal noise performance for accurate
measurement of small signals in high electrical noise.
Signal isolation by transformer coupling uses a proprietary
modulation technique for linear, stable and reliable
performance. The differential input circuit on the field side is
fully floating, eliminating the need for any input grounding. 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. The
output common must be kept within 3Vdc of power common.
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.
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5B40 & 5B41