Transimpedance Amplifiers

  • Product No:Transimpedance Amplifiers
  • Manufacturer:Gamma Scientific

The UDT Tramp is a transimpedance amplifier (current-to-voltage) instrument which provides a low input impedance to accurately measure the short circuit current of phototransducers such as silicon and germanium photodetectors, vacuum photodiodes and photomultiplier tubes.

This model provides multiple gain selection and utilizes a common BNC connector for input and output connections for user convenience. A voltmeter, oscilloscope, chart recorder or any other voltage sensitive instrument may be used to monitor the amplifier output.

  • Very low noise

  • Eight decades of gain ranging between 103 and 1010

  • Remote computer control using data acquisition interface (digital input/output, analog output)

  • Integral NiCad battery pack with normal and trickle charge modes

  • Line powered operation using transformer supplied

  • Output scaling to interface to chart recorders and other equipment

  • Optimal measurement range indicator

TRAMP Specifications

Gain (volt/ampere)

3          10

10 - 10

Noise (mV RMS)

0.5

Current Range (amps)

-2          -13

10  - 10

Overall Accuracy

±2%

Bandwidth vs. Gain

3

10  @ 160 kHz


4

10  @ 45 kHz


5

10  @ 12 kHz


6

10  @ 12 kHz


7

10  @ 550 Hz


8

10  @ 550 Hz


9

10  @ 5 Hz


10

10    @ 5 Hz

Offset Drift vs. Temperature

Less than 50 µV/°C

Input Impedance

0.001 ohms typical

Output Impedance

Less than 1 ohm

Output Voltage

±5V

Power Supply

115/230 VAC

Battery Life

15 hours

Type

10 AA NiCad

Physical Dimensions

2.76"H x 5.91"W x 7.51"L