Timing & signal acquisition
ZAMP Detector Transimpedance Amplifiers
A low-noise current-to-voltage amplifier family connects current-output optical detectors to voltage-input acquisition equipment. Eight gain settings cover different detector signal levels.
Best suited to
Single-point silicon, InGaAs and photomultiplier measurements.
Selecting a configuration
Choose gain around the largest expected detector current and the downstream input range. Check bandwidth and detector capacitance together to avoid compromising response time or stability.
Measurement & configuration
- Eight gain settings from 10³ to 10¹⁰ V/A.
- ZAMP-A uses an external power adapter.
- ZAMP-B supports adapter or rechargeable-battery operation.
Plan the signal path
- 1Detector current
- 2Selectable I–V gain
- 3Voltage acquisition
Specifications
| Gain | 10³–10¹⁰ V/A |
|---|---|
| Input current | −5 mA < Iin < +5 mA |
| Output voltage | −5 V < Vout < +5 V |
| Output impedance | <1 Ω |
| Gain uncertainty | 2% at 10³–10⁸; 5% at 10⁹–10¹⁰ V/A |
| Output noise | 0.5 mV, published ZAMP-A value |
| ZAMP-A dimensions | 195 × 121 × 88 mm |
Configure ZAMP-A / ZAMP-B
Send the wavelength interval, signal level, timing and sample requirements for your experiment.