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News
AKM releases the Smallest Class* Infrared Sensor IC in the World: the AK9752; capable of detecting through Glass and suitable as a Human Sensor
2017-02-03 | ReturnTitle:IR sensor with signal processing IC
Applications:Home Information Devices, Smart Locks, IoT Cameras, Home Appliances, PC
Description
Recently the number of applications that use human presence sensors have increased, such as among IoT equipment. However, pyroelectric type sensors are hard to detect objects through glass. This was causing design constraints in the products. Asahi Kasei Electronics Corporation, (AKM), has developed the AK9752, a human presence sensor for short range applications, (detection distance about 1m). It is capable of detection through glass and suitable sophisticated designed Portable PCs and home information products. The AK9752 integrates AKM’s original InSb quantum IR sensor element, an analog front end circuit that converts current output of the element into voltage, a dedicated thermometer to measure the element temperature, a 16-bit A/D converter (ADC), an I2C interface and an interrupt output.
。Capable of Detection through Glass
The pyroelectric type sensors cannot detect objects through glass. AKM’s previous product, the AK9750 shuts out infrared rays under 5μm wavelength that are able to pass through glass. The AK9752 can detect objects through glass since it’s able to detect infrared wavelengths of 5μm or less with high sensitivity, achieving a detection distance of 1m with a glass thickness of 0.7mm or less. It’s capable of detecting humans through glass and is ideal for home information devices such as a glass top device without having design compromises.
。 Lens-less Device, (Detection Distance: 1m)
The AK9752 does not need a lens to work up to 1m detection distances. It is housed in a very compact and thin package, providing flexible designability of information terminal devices.
。 Smallest Class Infrared Sensor IC in the World, Ultra-Compact and Thin Package
Package: 6-pin SON (2.2 x 2.2 x t0.6 mm)
[Notes] * According to AKM as of January 1st, 2017
。 Built-in Thermometer
The AK9752 can measure the temperature of IR sensor element.
。 Low Power Consumption
The AK9752 achieves low power consumption. (Power supply: Typ.1.8V, Power consumption: Max.100μA @10Hz Output). An interrupt function also helps sustain low power consumption operation with an external microcontroller. It enables long-time operation with a battery driven system.
Specifications
Product Name |
AK9752AE |
|
Number of IR Sensor |
1 |
|
Optical filter |
― |
|
16-bit A/D converter |
On chip |
|
Interrupt pin |
(Open drain) |
On chip |
Built-in Thermometer |
Range of -30 to 85°C are available on I2C bus |
|
Interface |
I2C |
|
Power Supply |
[V] |
1.65 to 1.95 |
Power Consumption |
Max. 100uA (10Hz Output) |
|
Operation Temperature |
[°C] |
-30 to 85 |
Package |
6-pin SON |
|
Size |
(D/W/H) [mm] |
2.2 x 2.2 x 0.6 |
Status |
In Mass Production from Apr. 2017 |
Source:http://www.akm.com/