Overview

As manufacturers in various industries continue to seek higher productivity, there is growing interest in sensing both in the visible light spectrum and beyond it, at Short Wavelength Infra-Red (SWIR) wavelengths.

In IMX990 and IMX991, SenSWIR™ technology has enabled Sony to overcome challenges in pixel miniaturization to offer sensors that are compact, high-resolution, and capable of imaging from the visible light spectrum to SWIR wavelengths. IMX990 and IMX991 are global shutter sensors with a digital output allowing for many features and functionality in industrial camera applications such as ROI and Trigger Mode.

The advances in performance and functionality introduced by the IMX990 and IMX991 pave the way for the development of SWIR industrial cameras and inspection equipment for a diverse range of applications such as inspection, identification, and measurement.

Features

Higher resolution and smaller systems from the industry's smallest pixels*1, at 5 μm

Advantages of the sensors promise to expand SWIR sensing applications. The sensors' higher resolution offers higher inspection precision, and smaller cameras afford greater freedom in installation.

*1) Among SWIR sensors employing a compound indium gallium arsenide (InGaAs) semiconductor, according to Sony' s research (as of May 2020).

Broad imaging (0.4–1.7 μm) from a single sensor that extends to the visible spectrum

Inspection that once required multiple cameras to cover visible and SWIR wavelengths can now be performed with a single unit. Such broad coverage expands both the type of objects that can be inspected and the type of inspection available. System costs can be reduced, and faster image processing can increase throughput.

Enhanced capabilities from digital output

Unlike the analog output that most SWIR sensors are limited to, the sensors achieved the same functionality as the current industrial CMOS image sensors by supporting digital output. Analog sensors require developers to implement an ADC or other functionality for industrial equipment on the camera. In contrast, the new sensors already include this functionality, which saves time and effort in camera development and makes it easier to develop versatile cameras.

Product Lineup

Model name Image size Effective pixels
IMX990 8.2 mm diagonal
(1/2-inch type)
Approx. 1.34 megapixels
IMX991 4.1 mm diagonal
(1/4-inch type)
Approx. 0.34 megapixels

Specifications

Device structure

Model name IMX990-AABA-C IMX990-AABJ-C IMX991-AABA-C IMX991-AABJ-C
Image size 8.2 mm diagonal (1/2-inch type) 4.1 mm diagonal (1/4-inch type)
Effective pixels 1296(H)× 1032(V)
Approx. 1.34 megapixels
656(H)× 520(V)
Approx. 0.34 megapixels
Unit cell size 5μm(H)× 5μm(V)
Optical black Horizontal direction front 0 pixels, rear 96 pixels
Vertical direction front 12 pixels, rear 0 pixels
Input drive frequency 37.125MHz/74.25MHz/54MHz
Power supply Pixel 2.2V、1.2V
Analog 3.3V、2.2V
Digital 1.2V
Interface 1.8V
Shutter mode Global shutter
Output interface SLVS(2ch/4ch)
Package Thermoelectric cooling element Included - Included -
Dimensions 30.0mm(H)× 30.0mm(V) 20.0mm(H)× 16.8mm(V) 30.0mm(H)× 30.0mm(V) 20.0mm(H)× 16.8mm(V)

Imaging characteristics

Model name IMX990 IMX991
Sensitivity*2 121mV 121mV
Saturation signal 360mV 360mV
Quantum efficiency*3 >75% >75%
Operability*4 >99.5% >99.5%

*1) Measurement conditions: Tj=15°C, all-pixel readout mode
*2) F8 1/30 sec. accumulation
*3) λ=1200nm
*4) Operability: percentage of pixels free of defects

Relative quantum efficiency of IMX990/IMX991

Relative quantum efficiency of IMX990/IMX991

Data may vary depending on conditions and the environment.

Basic drive mode

Model name Drive mode Recommended
recording pixels
ADC [bit] Frame rate (max.) [frame/s]
IMX990 All-pixel readout 1280(H)× 1024(V)
approx. 1.31 megapixels
8 130
10 120
12 70
IMX991 All-pixel readout 640(H)× 512(V)
approx. 0.33 megapixels
8 250
10 240
12 130

Download

SWIR image sensors overview

2-page summary of Sony's SWIR image sensors

Image Sensors with SenSWIR Technology

Image Sensors with SenSWIR Technology

Introducing the details of the technology used in this SWIR image sensors

Technology

Short Wavelength Infra-Red Image Sensor Technology SenSWIR™

Find out more about the SenSWIR™ technology.

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