How to choose the right touch chip and the development trend of touch chip

At present, the world-famous electronic component suppliers have increased the application research of capacitive touch IC and launched many professional chips (hereinafter referred to as touch chip). There are also many IC based on MCU integration. Designers have a large choice space. They can choose the IC suitable for the design needs according to the functional requirements and the cost performance of the chip, or design their own a / D port based on MCU to realize touch IC. The factors to be considered in the selection of touch chip include: technology, quality, delivery time, cost and environmental protection.

At present, there are two kinds of touch chips, one is resistive, the other is capacitive. Because of its higher reliability, capacitive is more widely used. At present, for products using touch chips, single touch is a common and widely used way. With the continuous development of touch chip IC, various forms of touch keys have appeared in our daily household appliances, such as the emergence of roller and slider keys, which enriches the application of touch chip.

With the development of MCU, it can not only be used as a key processing chip, but also as a simple key processing chip, such as touch processing, etc. In the past, to realize the touch key function, there must be two chips, one touch chip and one main MCU. Now only one touch chip can solve the problem, greatly reduce the cost of products, and make more products use touch key technology.

Here I would like to introduce a company specializing in making touch chips. Shenzhen Jerry Microelectronics Technology Co., Ltd. is a company with more than 10 years of design and sales of capacitive touch sensing chips. Its products can provide beautiful, solid, wear-free, unlimited life, absolutely safe and low-cost man-machine interface solutions for electronic and electrical products.

Advantages of Shenzhen Jerry Microelectronics Technology Co., Ltd.:

Leading technology: using high-precision capacitance digital conversion technology, it can accurately detect the touch of fingers through the non-metallic panel with a thickness of 20mm, and output the corresponding logic level, pulse or data. Advanced compensation algorithms and Solutions

The policy logic completely eliminates misoperation and ensures that the sensitivity, stability and reliability of the product will not be affected by the environment

Change due to the change of parts, long-distance transportation or long-term use.

Exclusive customized solution: no matter what requirements users have, we can find the appropriate chip and solution in our product series.

Simple application: the circuit is very simple, no oscillation circuit is required, and there are few peripheral components. Satisfactory results can be obtained by simply arranging the board according to the schematic diagram

Effect: it is very easy to interface with MCU to realize various touch control applications.

Standard: meet ROHS environmental protection standard.

Service Specialty: professional sales engineers and technical support team provide users with technology in the whole process from chip selection to R & D and production

Support: quickly provide technical materials, reference designs and free samples to help users shorten the R & D cycle of new products.

To learn more about the reference of touch chip, you can log in to the official website of Shenzhen Jerry Microelectronics Technology Co., Ltd.

After the inductive touch chip is integrated into MCU, the key detection becomes more flexible. Matrix scanning or AD sampling can be used, so that more and more keys can be identified. In the past, it may need several touch chips to complete. Now a new touch chip can fully meet the requirements.

At present, the integration of touch chip has become higher and higher. Touch chip can be used as both main MCU and touch key, which makes the cost performance of touch chip higher and lower. Therefore, the application of touch chip will be more and more widely.