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DPbS Series Room-Temperature PbS Detectors, 0.8–3.2 µm, Built-in Preamplifier
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Room-temperature PbS photoconductive detectors with built-in preamplifier for infrared measurements from 0.8 to 3.2 µm.
DPbS series detectors are room-temperature lead sulfide (PbS) photoconductive detectors for the 0.8–3.2 µm infrared range. The DPbS2900 and DPbS3200 share the same construction with an integrated preamplifier, so the output is a voltage signal. As photoconductive detectors they are operated with chopped light and a lock-in amplifier.
Key Features
- Two models: DPbS2900 (0.8–2.9 µm) and DPbS3200 (0.8–3.2 µm)
- Room-temperature operation
- Built-in preamplifier with selectable gain of ×1, ×10 or ×100
- Voltage output; select voltage sampling mode when used with the DCS103 or DCS300PA data acquisition systems
- Frequency response 100–1000 Hz, with 400 Hz recommended chopping frequency
- Designed for use with a lock-in amplifier
Typical Applications
- Infrared spectroscopy with scanning monochromators
- Lock-in detection of chopped IR signals
- Transmission and absorption measurements from 0.8 to 3.2 µm
- Infrared photoluminescence measurements
Model Overview
| Model | Active Area (mm) | Spectral Range (µm) | Peak Wavelength (µm) | Responsivity Su (V/W) | Dark Resistance Rd (MΩ) |
|---|---|---|---|---|---|
| DPbS2900 | 4 × 5 | 0.8–2.9 | ~2.2 | ~3×10⁴ | 0.2–2 |
| DPbS3200 | 6 × 6 | 0.8–3.2 | ~2.1 | ~300 | 0.1–0.3 |
Related Products
- DSi Series — Silicon Photodetectors
- DInGaAs Series — Room-Temperature InGaAs Detectors
- DInGaAs-TE Series — TE-Cooled InGaAs Detectors
Browse all: Spectroscopy Detectors · Photodetection
Models: DPbS2900, DPbS3200 · Contact WaveQuanta for a quote, configuration advice and lead time.
| Detector Type | PbS photoconductive, room temperature |
| Spectral Range | 0.8–2.9 µm (DPbS2900); 0.8–3.2 µm (DPbS3200) |
| Preamplifier | Built-in, gain ×1, ×10, ×100 |
| Input Offset Voltage | Below ±1 µV |
| Preamplifier Input Drift | ±1 µV |
| Frequency Response Range | 100–1000 Hz (400 Hz recommended) |
| Signal Output | Voltage |
| Output Signal Polarity | P (positive) |
| Recommended Readout | Lock-in amplifier |
No CAD drawings available for this product.
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Product Family: Spectroscopy Detectors (9 variants)
| Product | SKU | Size | Clear Aperture | Operating Wavelength | |
|---|---|---|---|---|---|
| DField-VS-A4 TE-Cooled Spectroscopy CCD, -60 °C Cooling, 30.7 mm Wide Sensor |
DField-VS-A4
| — | — | — | Contact |
| PMTH Series Room-Temperature Photomultiplier Detectors, Side-Window PMTs |
PMTH Series
| — | — | — | Contact |
| DMCT Series Liquid-Nitrogen-Cooled MCT Detectors, 2–22 µm Spectral Range |
DMCT Series
| — | — | — | Contact |
| DInSb Series Liquid-Nitrogen-Cooled InSb Detectors, 1–5.5 µm |
DInSb Series
| — | — | — | Contact |
| DPbS Series Room-Temperature PbS Detectors, 0.8–3.2 µm, Built-in Preamplifier Current |
DPbS Series
| — | — | — | |
| DField-NIR Series InGaAs Linear Array Detectors, 850–2200 nm Coverage |
DField-NIR Series
| — | — | — | Contact |
| DInGaAs-TE Series TE-Cooled InGaAs Detectors, 800–2600 nm, -40 °C |
DInGaAs-TE Series
| — | — | — | Contact |
| DInGaAs Series Room-Temperature InGaAs Detectors, 800–2600 nm, Ø3 mm |
DInGaAs Series
| — | — | — | Contact |
| DSi Series Silicon Photodetectors, 200–1100 nm, 100 mm² Active Area |
DSi Series
| — | — | — | Contact |