Burleigh DA-100 Detector Amplifier

The Burleigh DA-100 Detector Amplifier is a precision signal conditioning instrument that amplifies weak detector outputs across visible to infrared wavelengths. It delivers low-noise amplification with continuously variable gain and selectable bandwidth, making it essential for spectroscopy, microscopy, and materials research applications. The unit integrates with Burleigh SA Plus and TL Series Fabry-Perot Laser Spectrum Analyzers to reduce laser intensity requirements during spectral analysis.

Technical Specifications

• Bandwidth: 0.3 to 100 kHz (0.3 to 20 kHz at maximum gain) with six selectable steps: 0.3, 1, 3, 10, 30 kHz, and maximum


• Sensitivity: 0.1 V/mW to 1 V/µW, continuously variable


• Gain: Four decade steps (×1, ×10, ×100, ×1000) plus fine continuous adjustment


• Minimum Detectable Power: Silicon −1 nW at 633 nm; Germanium −2 nW at 1.5 µm


• RMS Noise: <1 mV


• Output Signal: 0 to ±6 V into 200 Ω with invertible polarity


• Offset Adjustment: ±1 V


• Power Supply: Two 9 V batteries or external 9 V DC (10–12 V range recommended); batteries serve as backup with external supply

Key Features

• Polarity invert switch for signal phase control


• Battery check indicator


• BNC output connector


• Cast aluminum alloy enclosure


• Compact form factor: 57 × 89 × 152 mm, 0.45 kg

Typical Applications Detector signal amplification in spectroscopy, laser spectrum analysis, microscopy, and materials characterization where signal-to-noise ratio and dynamic range are critical.

Compatibility & Integration Primary integration with Burleigh SA Plus and TL Series Fabry-Perot Laser Spectrum Analyzers. Interchangeable photodetector design supports operation across visible to infrared wavelength ranges.