Universal FAST Isolated Programmable Amplifier (gain: 0.02 to 200)

With the user’s external resistor “Rin” placed between “G” and “H”, this universal FAST isolated programmable bipolar amplifier (three-terminal isolation) eases the processing of all signals “Vin” between “± 50mV” and “± 500V”. Enabling amplification or attenuation, it transforms “Vin” = 0 to ¦maxi¦ into a standardized “Vout” signal “0 to ± 10V”.

Gain “Vout / Vin” programmed by “Rin” resistance:

The value of “Rin” linearly depends on the maximum value of the “Vin” voltage applied on the amplifier; Rin = (20kΩ x “Vin max”) – 1 kΩ
Example: if Vin max = 5V, then Rin = (20kΩ x 5) – 1kΩ = 99kΩ

Input:

• Input voltage: range “0 to ± 50mV” upto range “0 to ± 500V”
• Input current: limited to 50µA (with Rin adjusted to Vin)
• Precision of the ratio “20kΩ / volt”: < 2.10^-3

Output:

• Output voltage: 0 to ± 10V (standardized)
• Output current: 0 to ± 10mA
• Whatever “Vout”: < ±10V if the gain is reduced
• Gain dynamics: 10 000
• Gain linearity: < 10^-4
• Response time: 250µs, Vout varying from 0 to ±10V
• Isolated (2.5kV) from the input and the power supply
• Ripple: < 50mV / ≈ 35kHz

Protections:

• Three-terminal isolation: 2.5kV
• Overloads on the input: +100% of “Vin” max
• Protection against overloads and short circuits on the output
• Power supply protected against inversions
• Vibrations and tropicalization: sealing IP67

Power supply:

• Isolated (2.5kV) from the input and the output
• 24V (± 5%); consumption: < 30mA

Thermal performances:

• Operating: – 30°C to + 70°C
• Storage: – 40°C to + 100°C
• Stability: 0,004% per °C

Case:

• Case dimensions: 65 x 48 x 12.5 mm; for DIN rail; weight < 70g
• Connections: 8 points, cross-section 4,5mm² (screw locking)
• Other presentations upon request

Standards and specifications:

• Marking CE / RoHS
• Flammability: UL94HB, horizontal test
• MTBF: 500,000 hours

Options:

• “Rin” inbuilt in the case
• Axis “10 revolutions” inbuilt for adjustment
• “Vin” maximum: < ¦50mV¦

Security precautions:

• Place “Rin” before switching on
• Forbid any human contact for voltages >48V, especially on “Rin” , non-isolated from “Vin”

For more information about this universal FAST isolated programmable amplifier: documentation for download