ProxSense Capacitive Sensors

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How to estimate SPL from a microphone output ?

14 October 2025

When developing audio devices involving microphones, knowing the actual Sound Pressure Level (SPL) hitting your sensor is crucial. It…

Azoteq’s ProxSense® are capacitive touch and proximity sensors with industry leading sensitivity, lowest standby power consumption, and allow improved user interface and design aesthetics.

Name	Description	Package	Application	Capacitance	Number of channels	Interface	Product status
IQS7229A	8 Channel Self-capacitive Touch and Proximity Controller with I2C communications interface, integrated noise immunity algorithms, and low power options	QFN20	Appliance user interface	Self	8	I²C	Active
IQS9151	Multi-Function Trackpad IC: Proximity, Touch, Snap, Trackpad, and Gesture Functionality	QFN52 6x6	Trackpad	Self & Mutual	156	I²C	Active
IQS213A	SwipeSwitch	MSOP-10	Swipe + Keys	Self & Mutual	3	Direct / I²C	EOL
IQS228D	Touch, proximity, DYCAL™	TSOT23-6/ WLCSP-8	1 Key	Self	1	Direct	Active
IQS9150	Multi-Function Trackpad IC: Proximity, Touch, Snap, Trackpad, and Gesture Functionality	QFN52 6x6	Trackpad	Self & Mutual	506	I²C	Active
IQS227D	Proximity & touch, ATI	TSOT23-6/ WLCSP-8/ DFN-6	1 Key	Self & Mutual	1	Direct	Active
IQS7211E	Trackpad Sensing - Up to 42 Channels, two finger gestures	QFN20/WLCSP18	Trackpad/Touchscreen	Self & Mutual	42	I²C	Active
IQS7211A	Trackpad Sensing - Up to 32 Channels	QFN20/WLCSP18	Trackpad/Touchscreen	Self & Mutual	32	I²C	Active
IQS127D	Proximity & touch, ATI	TSOT23-6	1 Key	Self	1	Direct	EOL
IQS128	DYCAL™ sensor with intelligent hysteresis	TSOT23-6	1 Key	Self	1	Direct	EOL
IQS133	3 Channel differentiated touch and proximity outputs	MSOP-10	3 Keys	Self	3	Direct	EOL
IQS211B	Proximity, Touch, Movement	TSOT23-6/ DFN-6	1 Key	Self	1	Direct	Active
IQS223	3 Channel proximity & touch controller	QFN-16	Swipe + Keys	Self & Mutual	3	I²C	EOL
IQS227B	Proximity & touch, ATI	TSOT23-6/ WLCSP-8/ DFN-6	1 Key	Self	1	Direct	Active
IQS228B	Touch, proximity, DYCAL™	TSOT23-6/ WLCSP-8	1 Key	Self	1	Direct	Active
IQS229	SAR, movement	DFN-10	SAR Sensor	Self	1	Direct	EOL
IQS231B	SAR, movement	TSOT23-6/ WLCSP-8	SAR Sensor	Self	1	Direct / I²C	Active
IQS232	Configurable 2-channel sensor	SO-8	2 Keys	Self	2	Direct	EOL
IQS263B	Touch, Proximity, SAR, Movement, Slider & Scroll wheel	MSOP-10/ DFN(3x3)-10	3 Keys	Self & Mutual	3	I²C	EOL
IQS266	2 x 3 projected capacitive trackpad	QFN16	2x3 Keys/ Trackpad	Mutual	6	Fast I²C	EOL
IQS316	16 touch & 4 distributed proximity channels	QFN32 5x5	Keypad	Self	16 + 4	I²C / SPI	EOL
IQS333	9 channel touch and proximity	QFN32 5x5	Keypad/Slider	Self & Mutual	9	I²C	EOL
IQS360A	3x4 channel projected trackpad / touch screen controller	QFN32 5x5	Trackpad	Mutual	12	I²C	EOL
IQS525	5x5 or 4x6 channel projected trackpad / touch screen controller	QFN28 4x4	Trackpad	Mutual	25	I²C	Not Recommended for new design
IQS550	10x15 channel projected trackpad / touch screen controller	QFN48 7x7	Trackpad	Mutual	150	I²C	Active
IQS572	9x8 channel projected trackpad / touch screen controller	QFN28 4x4	Trackpad	Mutual	72	I²C	Not Recommended for new design

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ProxSense Capacitive Sensors

Azoteq’s ProxSense® are capacitive touch and proximity sensors with industry leading sensitivity, lowest standby power consumption, and allow improved user interface and design aesthetics.

Name	Description	Package	Application	Capacitance	Number of channels	Interface	Product status
IQS7229A	8 Channel Self-capacitive Touch and Proximity Controller with I2C communications interface, integrated noise immunity algorithms, and low power options	QFN20	Appliance user interface	Self	8	I²C	Active
IQS9151	Multi-Function Trackpad IC: Proximity, Touch, Snap, Trackpad, and Gesture Functionality	QFN52 6x6	Trackpad	Self & Mutual	156	I²C	Active
IQS213A	SwipeSwitch	MSOP-10	Swipe + Keys	Self & Mutual	3	Direct / I²C	EOL
IQS228D	Touch, proximity, DYCAL™	TSOT23-6/ WLCSP-8	1 Key	Self	1	Direct	Active
IQS9150	Multi-Function Trackpad IC: Proximity, Touch, Snap, Trackpad, and Gesture Functionality	QFN52 6x6	Trackpad	Self & Mutual	506	I²C	Active
IQS227D	Proximity & touch, ATI	TSOT23-6/ WLCSP-8/ DFN-6	1 Key	Self & Mutual	1	Direct	Active
IQS7211E	Trackpad Sensing - Up to 42 Channels, two finger gestures	QFN20/WLCSP18	Trackpad/Touchscreen	Self & Mutual	42	I²C	Active
IQS7211A	Trackpad Sensing - Up to 32 Channels	QFN20/WLCSP18	Trackpad/Touchscreen	Self & Mutual	32	I²C	Active
IQS127D	Proximity & touch, ATI	TSOT23-6	1 Key	Self	1	Direct	EOL
IQS128	DYCAL™ sensor with intelligent hysteresis	TSOT23-6	1 Key	Self	1	Direct	EOL
IQS133	3 Channel differentiated touch and proximity outputs	MSOP-10	3 Keys	Self	3	Direct	EOL
IQS211B	Proximity, Touch, Movement	TSOT23-6/ DFN-6	1 Key	Self	1	Direct	Active
IQS223	3 Channel proximity & touch controller	QFN-16	Swipe + Keys	Self & Mutual	3	I²C	EOL
IQS227B	Proximity & touch, ATI	TSOT23-6/ WLCSP-8/ DFN-6	1 Key	Self	1	Direct	Active
IQS228B	Touch, proximity, DYCAL™	TSOT23-6/ WLCSP-8	1 Key	Self	1	Direct	Active
IQS229	SAR, movement	DFN-10	SAR Sensor	Self	1	Direct	EOL
IQS231B	SAR, movement	TSOT23-6/ WLCSP-8	SAR Sensor	Self	1	Direct / I²C	Active
IQS232	Configurable 2-channel sensor	SO-8	2 Keys	Self	2	Direct	EOL
IQS263B	Touch, Proximity, SAR, Movement, Slider & Scroll wheel	MSOP-10/ DFN(3x3)-10	3 Keys	Self & Mutual	3	I²C	EOL
IQS266	2 x 3 projected capacitive trackpad	QFN16	2x3 Keys/ Trackpad	Mutual	6	Fast I²C	EOL
IQS316	16 touch & 4 distributed proximity channels	QFN32 5x5	Keypad	Self	16 + 4	I²C / SPI	EOL
IQS333	9 channel touch and proximity	QFN32 5x5	Keypad/Slider	Self & Mutual	9	I²C	EOL
IQS360A	3x4 channel projected trackpad / touch screen controller	QFN32 5x5	Trackpad	Mutual	12	I²C	EOL
IQS525	5x5 or 4x6 channel projected trackpad / touch screen controller	QFN28 4x4	Trackpad	Mutual	25	I²C	Not Recommended for new design
IQS550	10x15 channel projected trackpad / touch screen controller	QFN48 7x7	Trackpad	Mutual	150	I²C	Active
IQS572	9x8 channel projected trackpad / touch screen controller	QFN28 4x4	Trackpad	Mutual	72	I²C	Not Recommended for new design

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Search for specific product:

Categories:

Latest News:

How to estimate SPL from a microphone output ?

14 October 2025

When developing audio devices involving microphones, knowing the actual Sound Pressure Level (SPL) hitting your sensor is crucial. It…

Search for specific product:

Categories:

Latest News:

How to estimate SPL from a microphone output ?

14 October 2025

When developing audio devices involving microphones, knowing the actual Sound Pressure Level (SPL) hitting your sensor is crucial. It…

ProxSense Capacitive Sensors

Azoteq’s ProxSense® are capacitive touch and proximity sensors with industry leading sensitivity, lowest standby power consumption, and allow improved user interface and design aesthetics.

Name	Description	Package	Application	Capacitance	Number of channels	Interface	Product status
IQS7229A	8 Channel Self-capacitive Touch and Proximity Controller with I2C communications interface, integrated noise immunity algorithms, and low power options	QFN20	Appliance user interface	Self	8	I²C	Active
IQS9151	Multi-Function Trackpad IC: Proximity, Touch, Snap, Trackpad, and Gesture Functionality	QFN52 6x6	Trackpad	Self & Mutual	156	I²C	Active
IQS213A	SwipeSwitch	MSOP-10	Swipe + Keys	Self & Mutual	3	Direct / I²C	EOL
IQS228D	Touch, proximity, DYCAL™	TSOT23-6/ WLCSP-8	1 Key	Self	1	Direct	Active
IQS9150	Multi-Function Trackpad IC: Proximity, Touch, Snap, Trackpad, and Gesture Functionality	QFN52 6x6	Trackpad	Self & Mutual	506	I²C	Active
IQS227D	Proximity & touch, ATI	TSOT23-6/ WLCSP-8/ DFN-6	1 Key	Self & Mutual	1	Direct	Active
IQS7211E	Trackpad Sensing - Up to 42 Channels, two finger gestures	QFN20/WLCSP18	Trackpad/Touchscreen	Self & Mutual	42	I²C	Active
IQS7211A	Trackpad Sensing - Up to 32 Channels	QFN20/WLCSP18	Trackpad/Touchscreen	Self & Mutual	32	I²C	Active
IQS127D	Proximity & touch, ATI	TSOT23-6	1 Key	Self	1	Direct	EOL
IQS128	DYCAL™ sensor with intelligent hysteresis	TSOT23-6	1 Key	Self	1	Direct	EOL
IQS133	3 Channel differentiated touch and proximity outputs	MSOP-10	3 Keys	Self	3	Direct	EOL
IQS211B	Proximity, Touch, Movement	TSOT23-6/ DFN-6	1 Key	Self	1	Direct	Active
IQS223	3 Channel proximity & touch controller	QFN-16	Swipe + Keys	Self & Mutual	3	I²C	EOL
IQS227B	Proximity & touch, ATI	TSOT23-6/ WLCSP-8/ DFN-6	1 Key	Self	1	Direct	Active
IQS228B	Touch, proximity, DYCAL™	TSOT23-6/ WLCSP-8	1 Key	Self	1	Direct	Active
IQS229	SAR, movement	DFN-10	SAR Sensor	Self	1	Direct	EOL
IQS231B	SAR, movement	TSOT23-6/ WLCSP-8	SAR Sensor	Self	1	Direct / I²C	Active
IQS232	Configurable 2-channel sensor	SO-8	2 Keys	Self	2	Direct	EOL
IQS263B	Touch, Proximity, SAR, Movement, Slider & Scroll wheel	MSOP-10/ DFN(3x3)-10	3 Keys	Self & Mutual	3	I²C	EOL
IQS266	2 x 3 projected capacitive trackpad	QFN16	2x3 Keys/ Trackpad	Mutual	6	Fast I²C	EOL
IQS316	16 touch & 4 distributed proximity channels	QFN32 5x5	Keypad	Self	16 + 4	I²C / SPI	EOL
IQS333	9 channel touch and proximity	QFN32 5x5	Keypad/Slider	Self & Mutual	9	I²C	EOL
IQS360A	3x4 channel projected trackpad / touch screen controller	QFN32 5x5	Trackpad	Mutual	12	I²C	EOL
IQS525	5x5 or 4x6 channel projected trackpad / touch screen controller	QFN28 4x4	Trackpad	Mutual	25	I²C	Not Recommended for new design
IQS550	10x15 channel projected trackpad / touch screen controller	QFN48 7x7	Trackpad	Mutual	150	I²C	Active
IQS572	9x8 channel projected trackpad / touch screen controller	QFN28 4x4	Trackpad	Mutual	72	I²C	Not Recommended for new design

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