160x120 Thermopile Infrared Array

The HTPA160x120 is our highest resolution thermopile infrared array inside a TO-8 housing, which is best for thermal imaging with a QQVGA resolution.

Due to the digital SPI interface, only six pins are needed for operation. It has a 16-bit ADC and built-in FLASH stores all calibration data. The framerate can be set individually and depends on the sensor clock and ADC resolution.

For high 16-bit resolution, framerates of 9 Hz are possible for the whole 160x120 format, while lower ADC resolutions and different gas filling allow framerates of up to 30 Hz and more. Different available optical lenses, integrated with the array in a TO-8 housing, provide fields of view (FOV) from 38x28 degree up to 120x80 degree.

The 160x120 array can be used as a drop-in solution for the 80x64 and 120x84 array, as it provides the same PIN-out and dimensions. Thanks to an improved pixel design, the performance is similar to these lower resolution sensors in TO-8.

Another application of the same array can be fast scanners, where only a fragment of e.g. 160x10 or 160x20 pixels are read out. Such 160x10 arrays could be operated in global shutter mode and reach frame rates of up to 80…150 Hz, allowing the detection or measurement of hot objects in industrial conveyor belts, where NETD of about 300 ... 600 mK are sufficient.