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Model DI-5B45-07

Isolated 0 to 50kHz 5B-style Amplifier

$ 225 each
  • Accepts Frequency Inputs of 0 to 50kHz
  • Provides High Level Voltage Outputs
  • TTL Level Inputs
  • 1500 Volt Transformer Isolation
  • ANSI/IEEE C37.90.1-1989 Transient Protection
  • Input Protected to 240VAC Continuous
  • ±0.05% Accuracy
  • CSA Certified
  • View Dimensions and pinout
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DI-5B DAQ Amplifiers
This amplifier module measure 0 to 50 kHz.This data acquisition system has a 30-day Money back guaranteeThis amplifier is manufactured in the United States of America


Each DI-5B45 frequency input module provides a single channel of frequency input which is isolated and converted to a high level analog voltage output. This voltage output is logic switch controlled, which allows these modules to share a common analog bus without the requirement of external multiplexers (see block diagram).

The frequency input signal can be a TTL level signal or a zero-crossing signal. Terminal 3 (+In) on the field side terminal block is the “common” or ground connection for input signals. A TTL signal is connected from terminal 2 (-In) to terminal 3 (+In), while a zero crossing signal is connected from terminal 4 (+EXC) to terminal 3 (+In). Input circuitry for each of the signal types has hysteresis built in. An input signal must cross entirely through the hysteresis region in order to trigger the threshold comparator.

A 5.1V excitation is available for use with magnetic pickup or contact-closure type sensors. The excitation is available on pin 1 (-EXC) and the excitation common is pin 3 (+In). The DI-5B modules are designed with a completely isolated computer side circuit which can be floated to ±50V from Power Common, pin 16. This complete isolation means that no connection is required between I/O Common and Power Common for proper operation of the output switch. If desired, the output switch can be turned on continuously by simply connecting pin 22, the Read-Enable pin to I/O Common, pin 19.

A special circuit in the input stage of the module provides protection against accidental connection of power-line voltages up to 240VAC.



16-Position Backplane

$ 409
16-channel backplane for 5B modules


16-channel backplane for 5B modules. Each module has its own analog bus. For use with DI-5B Modules.


1-Position Backplane

$ 55
Single-channel backplane for 5B modules


Single-channel backplane. For use with DI-5B Modules.


2-Position Backplane

$ 129
Dual-channel backplane for 5B modules


Dual-channel backplane. For use with DI-5B Modules.


8-Position Backplane

$ 305
Dual-channel backplane for 5B modules


8-position analog I/O backplane, non-multiplexed. For use with DI-5B Modules.


Base Element

$ 10
Base element with snap foot


Base element with snap foot required for use with models DI-5B03 and DI-5B04 Backplanes. For use with DI-5B Modules.


Power Supply

Power Supply


5V DC Power Supply for use with both DI-5B and DI-8B Backplanes.


Side Element

$ 5
Side element


Side element required for use with models DI-5B03 and DI-5B04 Backplanes. For use with DI-5B Modules and Backplanes.


Input Range: 0 to 50kHz
Output Range: 0 to +5V
Excitation: +5.1Vdc @ 8mA
Input Threshold: Zero Crossing
Minimum Input: 60mVp-p
Maximum Input: 350Vp-p
Minimum Pulse Width: 4µs
TTL Input Low: 0.8V max
TTL Input High: 2.4V min
Input Hysteresis: Zero Crossing: 0.04V
TTL: 1.5V
Input Resistance: Normal: 100kΩ
Power Off: 100kΩ
Overload: 100kΩ
Input Protection: Continuous: 240Vrms max
Transient: ANSI/IEEE C37.90.1-1989
CMV, Input to Output: Continuous: 1500Vrms max
Transient: ANSI/IEEE C37.90.1-1989
CMR (50 or 60Hz): 120dB
Accuracy: ±0.05% Span (Includes nonlinearity, hysteresis and repeatability.)
Nonlinearity: ±0.02% Span
Stability: Offset: ±40ppm/°C
Gain: ±40ppm/°C
Noise: Output Ripple: <10mVp-p @ Input>2% span
Response Time: DI-5B45-01, -02: 300ms
DI-5B45-03: 170ms
DI-5B45-04, -05: 90ms
DI-5B45-06, -07, -08: 20ms
Output Range: 0V to +5V
Output Resistance: 50Ω
Output Protection: Continuous Short to Ground
Output Selection Time (to ±1mV of VOUT): 6µs at Cload = 0 to 2000pF
Output Enable Control: Max Logic “0”: +0.8V
Min Logic “1”: +2.4V
Max Logic “1”: +36V
Input Current, “0,1”: 0.5µA
Power Supply Voltage: +5VDC ±5%
Power Supply Current: 110mA
Power Supply Sensitivity: ±150µV/%RTO (RTO=Referenced to Output)
Environmental: Operating Temperature: -40ºC to +85ºC
Storage Temperature: -40ºC to +85ºC
Relative Humidity: 0 to 95% Noncondensing
RFI Susceptibility: ±0.5% Span Error at 400MHz, 5W, 3ft
Mechanical Dimensions: 2.28" × 2.26" × 0.60"
(58mm × 57mm × 15mm)