Sony led the industry by introducing the technology of a back-illuminated CMOS image sensor Exmor R™ to the camera market. Now, Sony is releasing "IMX147LQT", a back-illuminated approximately 20.68M-effective pixel CMOS image sensor that takes further advantage of that technology.
The advanced fine pixel technologies enable the characteristics of high resolution and high-picture quality.
At the same time, Type 1/3.2 cropping functions support 4K video format.
These capabilities will further expand the possibilities for expressive imaging provided by cameras.
* Exmor R is a trademark of Sony Corporation. The Exmor R is a Sony's CMOS image sensor with significantly enhanced imaging characteristics including sensitivity and low noise by changing fundamental structure of ExmorTM pixel adopted column parallel A/D converter to back-illuminated type.
Sony developed industry's smallest 1.20 µm unit pixel with back-illuminated type, and the image sensor with Type 1/2.3 image size has approximately 20.68M effective pixels.
The video recording with finer detail and more control over image view angle output and image signal operation bring out more versatile imaging expression.
Moreover, the IMX147LQT advanced fine pixel fabrication technologies and increased approximately 14% saturation signals compared with the existing structure, which resolves an issue of lower saturation signals per unit surface from image pixel minimization.
This enables even low ISO setting equivalent to ISO 80. (See photograph 1)
In theory, when a pixel size is minimized, there is a partial coloring issue resulted from the increase of light leakage into the neighboring pixel (color mixture).
The color mixture tolerance is more required to deal with high power zoom, which is recently adding value, and the consequent trend of bigger incident light angle.
To overcome with this issue, the IMX147LQT introduced a newly-developed technology of color mixture suppression in the pixel structure.
As the result, this new image sensor successfully reduced about half of the color mixture in the neighboring pixel compared to the existing product IMX118CQT (1.26 µm unit pixel, Type 1/2.3, 18.47M effective pixels, see the New Products section in CX-NEWS, Volume 67). (See figure 1.)
Sony's unique high-speed readout technology makes it possible to select high-definition still images, high-speed video imaging or whatever other drive mode that best suits the purpose. (See table 3.)
The IMX147LQT is able to use both Type 1/2.3 and Type 1/3.2 image view angles as the situation demands.
With the choice of Type 1/2.3 approximately 20.68M pixels (4:3 aspect ratio), all-pixel scan enables high resolution images.
When using Type 1/3.2 approximately 9.03M pixels (17:9 aspect ratio), the future development of 4K video format for the next generation is possible at 60 frame/s.
As well as full HD 60 frame/s is supported (mode 1), multiple video functions are offered, including high-definition slow images at HD 240 frame/s (mode 4).
*1 Output ratio [%] of neighboring pixel R compared to the pixel G output
|Image size||Diagonal 7.82 mm (Type 1/2.3) aspect ratio 4:3
Diagonal 5.59 mm (Type 1/3.2) aspect ratio 17:9
|Fabrication process||Back-illuminated CMOS image sensor|
|Output format||Digital 10 bit/12 bit 10 ch Sub-LVDS, 576 Mbps serial output|
|Total number of pixels||5352 (H) × 3950 (V) approx. 21.14M pixels|
|Number of effective pixels||5256 (H) × 3934 (V) approx. 20.68M pixels|
|Number of active pixels||5208 (H) × 3924 (V) approx. 20.44M pixels|
|Unit cell size||1.20 µm (H) × 1.20 µm (V)|
|Horizontal||Front: 48 pixels, rear: 0 pixels|
|Vertical||Front: 16 pixels, rear: 0 pixels|
|Input clock frequency||72 MHz|
|Package size||12.8 mm (H) × 10.5 mm (V) × 1.95 mm (t)|
|Sensitivity (F5.6)||986 digit (Typ.)*1||1/30 s accumulation, G signal|
|Saturation signal||2959 digit (Min.)*1||Ta = 60°C|
|Power consumption||416 mW||All-pixel scan mode (12 bits)*2
Rolling shutter (at 0 dB and AD-Fullcount)
|311 mW||Full HD 60 frame/s (at 0 dB and AD-Fullcount)|
*1 1digit ≈ 0.1314 [mV]
*2 22 [frame/s]
|Drive mode||Operation using Type 1/2.3,
approx. 20.68M pixels (4:3)
|Operation using Type 1/3.2,
approx. 9.03M pixels (17:9)
|Number of A/D
conversion bits [bit]
|Number of A/D
conversion bits [bit]
|5184 (H) × 3888 (V) 20.16M pixels||22||12||4096 (H) × 2160 (V) approx. 8.85M pixels||48||12|
|5184 (H) × 3888 (V) 20.16M pixels||25||10||4096 (H) × 2160 (V) approx. 8.85M pixels||60||10|
|Mode 1*1*2||2592 (H) × 1458 (V) approx. 3.78M pixels||60||10||2048 (H) × 1080 (V) approx. 2.21M pixels||60||10|
|Mode 2*1*2||1728 (H) × 1296 (V) approx. 2.24M pixels||30||10||1364 (H) ×720 (V) approx. 0.98M pixels||60||10|
|Mode 3*1||1728 (H) × 1296 (V) approx. 2.24M pixels||60||10||1364 (H) ×720 (V) approx. 0.98M pixels||120||10|
|Mode 4*1*2||1728 (H) × 378 (V) approx. 0.65M pixels||240||10||1364 (H) × 720 (V) approx. 0.98M pixels||240||10|
|Mode 5*1*2||1728 (H) × 432 (V) approx. 0.75M pixels||30||9||-||-||-|
|Mode 6*2||2592 (H) × 1458 (V) approx. 3.78M pixels||60||10||2048 (H) × 1080 (V) approx. 2.21M pixels||60||10|
|Mode 7*1*2||1728 (H) × 202 (V) approx. 0.34M pixels||450||10||1364 (H) × 126 (V) approx. 0.17M pixels||660||10|
*1 With horizontal addition
*2 With vertical addition
Note: This device was designed for use in consumer digital still cameras or camcorders and may not be appropriate for other applications.
Contact your Sony representative for consultation when considering this product for use in other applications.
*Sony reserves the right to change products and specifications without prior notice.
We believe that our development of new color mixture suppression is a great achievement of Sony's advanced technology.
Our team put our all efforts to commercialize the IMX147LQT.
The IMX147LQT supports lenses requesting very severe conditions of incident light characteristics, and new possibilities can be anticipated for the cameras.
Be sure to try Sony's next step in the high speed and high pixel count evolution for your next product line.