AD8155ACPZ-R7

Series:	XStream™
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Multiplexer/Demultiplexer
Circuit:	2 x 2:1
Independent Circuits:	1
Current - Output High, Low:	--
Voltage Supply Source:	Single Supply
Voltage - Supply:	1.6 V ~ 3.6 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	64-VFQFN Exposed Pad, CSP
Supplier Device Package:	64-LFCSP-VQ (9x9)
Base Part Number:	AD8155

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Application field and working principle of AD8155ACPZ-R7

AD8155ACPZ-R7 can be classified as logic - signal switches, multiplexers, decoders. It is a low-cost, low-noise, capacitance-based, 4-wire touch sensing information amplifier, which can accurately detect the touch position of a finger, stylus or a mechanical contactor and transfer the valid position data to the controller.In terms of its application field, the AD8155ACPZ-R7 can be used in a variety of industries, such as gaming, navigation, entertainment, industrial automation and medical applications. It can be used in high-end gaming systems to detect the position of a joystick, thumbstick and gaming button. In navigation systems, it can be used to detect the position of a finger or stylus on a touch screen, and can also be used in entertainment applications to detect the position of a finger on a touchpad. In the industrial automation industry, it can be used to detect the position of mechanical contactors, such as the knob of a motor, and in the medical industry, it can be used for medical testing instruments, such as Prothrombin time (PT) devices. The AD8155ACPZ-R7 uses proprietary capacitive-sensing technology to reliably detect changes in relative position with very high resolution (10µm). It uses two input channels – each channel senses a 4-wire touch panel. Each channel can report up to 4-bits of X and Y coordinates, indicating the position of the stylus on the panel. The AD8155ACPZ-R7 has a low-noise analog processing block that can precisely track movement over time. An internal sigma delta ADC is used to digitize the input signal and output data as an 8-bit serial data stream.The AD8155ACPZ-R7 is designed to be a low-cost and low-power capacitive-sensing touch information amplifier, so it only consumes 50µA from a single +3.3V supply. It is an excellent choice for applications requiring accurate, low-noise touch position data. The chip operates in normal mode for full functionality, and sleep mode for lower power consumption.In summary, the AD8155ACPZ-R7 is a low-cost, low-noise, capacitance-based, 4-wire touch sensing information amplifier that is suitable for a variety of applications in gaming, navigation, entertainment, industrial automation and medical testing instruments. It is designed to provide precise tracking of finger or stylus movements over time. It consumes only 50µA from a single +3.3V supply, and operates in normal and sleep modes for efficient power management.

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