GS-LDA512P25M/L-17-T1 512×1 25μm Cooled Linear InGaAs Detector Metal DIP 22MHz Single‑Channel
1. Introduction
GS-LDA512P25-T1 series is a cooled near-infrared InGaAs linear array detector. It adopts planar InGaAs PIN photodiode chip, with 512*1 single row pixels and 25 μm pixel pitch, covering 0.9-1.7 μm short-wave infrared spectrum. It comprises two variants distinguished by pixel height: GS-LDA512P25M-17-T1 with 25*250μm pixels and GS-LDA512P25L-17-T1 with 25*500μm pixels. Equipped with 28-pin metal DIP encapsulation, TE thermoelectric cooling and built-in temperature sensor, it supports single-channel high-speed signal output for spectrometers and industrial line-scan inspection equipment integration.
2. Product Features
- Pixel layout: 512 * 1, pixel pitch 25μm; pixel-height options:25*250μm(M), 25*500μm(L)
- 28-pin Metal DIP metal packaging
- TE thermoelectric cooling, internal integrated temperature sensor
- Spectral response: 0.9 μm ~ 1.7 μm
- Valid pixel ratio > 99%
- Quantum efficiency > 70%
- Single-channel signal output, maximum readout frequency up to 22 MHz
3. Technical Specifications
| Item | Parameter |
|---|---|
| Model | GS-LDA512P25-T1 |
| Detector Type | Planar InGaAs PIN |
| Spectral Range | 0.9 – 1.7μm |
| Pixel Format | 512 * 1 |
| Pixel Pitch | 25μm |
| Pixel Size-M | 25 * 250μm |
| Pixel Size-L | 25 * 500μm |
| Die Size | 15.3 * 4.5mm |
| Packaging | 28-pin Metal DIP Package |
| Package Dimension | 50.00 * 25.40 * 11.67mm |
| Weight | 25.8g |
| Cooling | TE Thermoelectric Cooling |
| Temperature Sensor | Built-in |
| Quantum Efficiency | > 70% |
| Effective Pixel Rate | > 99% |
| Output | Single-channel, up to 22MHz |
Note: Specifications are for reference only and subject to change without prior notice.
4. Applications
- Short-wave infrared line scan imaging
- Semiconductor surface defect inspection
- Industrial waste & material sorting
- Near-infrared spectrum analysis instruments
5. Quantum Efficiency
6. FAQs
Q1: What pixel configurations are available in LDA512-T1 series?
A: Two variants: LDA512P25M-17-T1 with 25*250μm pixels and LDA512P25L-17-T1 with 25*500μm pixels.
Q2: What is the maximum output data rate?
A: Single-channel readout supports up to 22MHz.
Q3: What package type is used?
A: 28-pin hermetic metal DIP package, dimension 50.00*25.40*11.67mm.
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