Tramp Transimpedance Amplifier

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

The TRAMP has been specifically designed as a low cost, lab quality instrument to interface silicon photodiodes to a variety of measurement equipment. 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.

 

Key Applications

  • Laboratory Research
  • Product Line Integration
  • Automatic Test Equipment
  • Laser Pulse Measurement
Request a Quote
  • Eight decades of gain ranging between 10³ and 1010 
  • Remote computer control using data acquisition interface
  • Integral NiCad battery pack with normal & trickle charge modes
  • Line powered operation using supplied transformer
  • Output scaling to interface to chart recorders and other equipment
  • Optimal measurement range indicator

UDT Tramp General Specifications

Gain (Volt / Ampere)

103 to 1010

Noise (rms)

0.5 mV

Current Range

10 -2 to 10 -13 Amps

Overall Accuracy

± 2%

Bandwidth vs Gain

103 @ 160 kHz

104 @ 45 kHz

105 @ 12 kHz

106 @ 12 kHz

107 @ 550 Hz

108 @ 550 Hz

109 @ 5 Hz

1010 @ 5 Hz

Offset Drift vs Temperature

< 50 µV / °C

Input Impedance

< 1 Ω

Output Voltage

± 5 V

Input Power

115 / 230 VAC

Battery Information

10 Each, AA NiCad

Typical operating time of 15 hours

Dimensions

70 mm (2.8 in) H x 150 mm (5.9 in) W x 191 mm (7.5 in) D

Calibration Traceability

Traceable to NIST with optional ISO/IEC 17025 accredited

Relative Humidity

Up to 99% (non-condensing)

Regulatory Compliance

TUV, UL, CSA, CE

Specifications are subject to change without notice.