The CVI Melles Griot 13AMP005 is a general-purpose transimpedance amplifier engineered for photodiode signal detection in both photovoltaic and photoconductive operating modes. This compact instrument converts input photocurrent to proportional voltage output across five programmable gain settings, delivering ±1% measurement accuracy across a 100 pA to 2 mA dynamic range.
## Technical Specifications
Transimpedance gain spans five decades from 10³ V/A to 10⁷ V/A, selectable via front-panel 5-position range switch covering 200 nA to 2 mA. Frequency response extends DC to 5 MHz at the minimum gain setting (10³ V/A). Input detection capability resolves photocurrents from 100 pA to 2 mA with ±1% accuracy maintained across all ranges.
Bias adjustment provides ±10 V with 1 V step resolution. Monitor output delivers ±2 V into 50 Ω termination or ±4 V unterminated. Output impedance is 50 Ω via BNC connector. Offset current adjustment supports ±50 mA (high range) and ±5 mA (low range) for background null operations.
Power input accepts switch-selectable 115 Vac or 230 Vac operation at 50–60 Hz. Display features a 3½-digit backlit LCD indicating photocurrent and active range. Physical dimensions measure 133 mm W × 83 mm H × 140 mm D. Operating temperature range: +10°C to +35°C; storage: -40°C to +55°C.
## Key Features
• Five-decade variable transimpedance gain from 10³ to 10⁷ V/A
• DC to 5 MHz bandwidth at 10³ V/A gain setting
• Detects photocurrents spanning 100 pA to 2 mA
• ±10 V bias adjustment in 1 V increments
• Front-panel offset nulling for background suppression
• Dual voltage supply (115/230 Vac) operation
• BNC signal monitor output for external data acquisition
• Portable 5.25 × 3.25 × 5.5 inch form factor
## Typical Applications
Photodiode signal conditioning in spectroscopy, optical measurement, and sensor interface systems requiring wide dynamic range current-to-voltage conversion. Suitable for laboratory research and industrial instrumentation where variable gain and bias control optimize detection of low-level optical signals.
## Compatibility & Integration
Designed specifically for operating Melles Griot silicon photodiodes in both photovoltaic and photoconductive configurations. All inputs and outputs employ BNC connectors; rear-panel banana jack provides ground connection.
