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APDS-9960-210 - RGB/ALS/Proximity/Gesture Optical Sensor | Broadcom
The Broadcom APDS-9960-210 is a digital proximity, ambient light sensor (ALS), RGB color sensor, and gesture sensor integrated into one 8-pin SMD module measuring L 3.94 mm x W 2.36 mm x H 1.35 mm. It combines an IR LED, factory-calibrated LED driver, four photodiodes (red, green, blue, and clear), and gesture/position/proximity detection logic on a single I2C interface, enabling compact touchless user-interface designs. The part number suffix "-210" denotes the tape-and-reel packaging variant versus the tray-packaged APDS-9960 base part, with identical silicon and pinout. What is an optical gesture/color/proximity sensor? It is a multi-function optoelectronic IC that emits infrared light, captures reflections on integrated photodiodes, and runs on-chip DSP to recognize hand gestures, object proximity, ambient light intensity, and RGB color. In the broader taxonomy it sits under: optical sensor -> ambient light, IR, UV sensor -> sensor IC -> semiconductor. Such ICs replaced discrete LED+photodiode pairs and external ADCs by integrating the analog front-end, LED driver, I2C interface, and gesture engine in a single reflow-solderable LGA module. Key features include four independent sensor channels (RGBC + proximity + gesture), I2C interface compatible with 100 kHz and 400 kHz, configurable interrupt output, 8-bit to 16-bit ADC resolution, and an integrated IR LED with a calibrated current driver. The factory calibration removes the need for manual LED current tuning across individual units, while the slim 1.35 mm package enables placement behind dark or IR-transmissive cover glass with minimal mechanical intrusion. The internal architecture uses four photodiode channels with optical filters: a clear channel for ambient light intensity, dedicated red/green/blue filters for color sensing, and an unfiltered IR-sensitive channel for proximity and gesture detection. The integrated gesture engine decodes the IR reflections from four directional photodiodes into LEFT, RIGHT, UP, DOWN, NEAR, and FAR events, offloading processing from the host MCU. The I2C interface supports standard (100 kHz) and fast (400 kHz) modes with selectable addresses. Typical applications include smartphone touchless gesture control, laptop/alphanumeric display auto-brightness, IoT and smart-home gesture UIs, robotics obstacle avoidance, gaming peripherals, and kiosk/proximity wake-up. Designers also use it for color-matching under RGB LED lighting and as a contactless dimmer for industrial panels. When designing with this device, place the module behind IR-transmissive cover glass to maximize IR throughput, and reserve at least 1.5 mm clearance above the package for unobstructed IR emission. The I2C lines require 10 kohm pull-ups to the host's logic level (1.8 V to 3.3 V), and the INT pin should be wired to a host GPIO with interrupt capability for low-power event-driven operation. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet. It also cross-references same-package alternatives from Broadcom's RGB+IR sensor family and competitor modules suitable for second-source qualification.
LDC3114-Q1 - 4-Ch Inductive Touch Sensor 16-TSSOP | TI
The Texas Instruments LDC3114-Q1 is a 4-channel hybrid inductive touch and inductance-to-digital converter supplied in a 16-pin TSSOP (PW) package measuring 5.00 mm x 4.40 mm. It converts changes in inductance caused by conductive target movement into digital data, enabling contactless button, slider, and proximity sensing without mechanical wear. An inductance-to-digital converter (LDC) is a specialized sensor interface IC that measures the resonant frequency shift of an LC tank driven by a conductive target. Within the sensor signal chain hierarchy, it sits between the raw coil sensor and the host MCU, functioning as both an excitation source and a digitizer. LDCs belong to the broader family of capacitive/inductive position and touch sensing interfaces used across automotive and industrial human-machine interfaces. Key features include four well-matched sensing channels that support differential and ratiometric measurements, allowing compensation of environmental and aging effects such as temperature drift and mechanical drift. The device communicates through an I2C interface for simple configuration, and an ultra-low power mode is specifically intended for power on/off buttons and position sensors in battery-powered applications. The device is AEC-Q1 qualified, making it suitable for automotive in-cabin and body electronics designs. Technically, the LDC3114-Q1 drives external coils directly and reports proximity or touch state via I2C registers, offloading threshold computation from the host processor. The well-matched channel structure improves multi-button uniformity, while the single-ended sensing method simplifies sensor PCB layout compared to differential architectures. Typical applications include automotive touch buttons on steering wheels and center consoles, contactless rotary/position sensing in knobs and dials, and industrial control panels where sealed, mechanical-free interfaces improve reliability in harsh environments. Design consideration: keep the LC tank components close to the device and follow the TI sensor PCB layout guidelines to minimize parasitic capacitance; the single-ended architecture is more EMI-sensitive than differential predecessors such as the LDC1662, so shielding and ground plane practices matter.
LDC3114QPWR - 4-Ch Inductance-to-Digital Touch Sensor | TI
The Texas Instruments LDC3114QPWR is a 4-channel hybrid inductive touch and inductance-to-digital converter (LDC) with I2C interface, housed in a 16-pin TSSOP (PW) package rated from -40C to +125C. An inductance-to-digital converter is a sensor interface IC that measures the impedance shift of an external LC tank circuit - typically a copper coil or PCB trace inductor paired with a capacitor - and converts that shift into a digital value. Within the sensor-signal-conditioning hierarchy (sensor AFE -> inductive sensing IC -> sensor interface -> mixed-signal IC), an LDC translates physical events such as a finger press, metal target movement, or spring compression into register data that a microcontroller reads over I2C. Key features include 4 independent sensing channels for multi-button touch panels or position sensing, an ultra-low power mode for battery-powered power on/off buttons, and simple configuration through the I2C interface. The device integrates the excitation and demodulation circuitry internally, so designers only add an external coil and capacitor per channel, reducing bill-of-materials complexity compared with capacitive sensing that requires specialized electrodes. Technically, the LDC3114 drives each channel's LC tank, monitors resonant impedance, and outputs raw and processed data registers; internal compensation and button-detection algorithms offload the host MCU. The hybrid architecture supports both inductive touch buttons and continuous inductance measurement for linear or rotary position sensing. Typical applications include waterproof or gloved-touch buttons on appliances and industrial panels, metal-target proximity switches, and linear or rotary position sensing in knobs and sliders. The TSSOP-16 package suits compact control boards. Design consideration: choose the external capacitor to set the resonant frequency within the datasheet-supported range, and keep sensor coils away from ground planes to maximize sensitivity. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
RPR-0730 - 940nm IrVCSEL Analog Photoreflector | ROHM
The ROHM Semiconductor RPR-0730 is an ultra-compact analog reflective optical sensor (photoreflector) integrating a 940nm infrared VCSEL (IrVCSEL) emitter and a high-speed phototransistor receiver in a single 6-SMD, no-lead surface-mount package. It detects the approach of a person or object at a sensing distance of 0.394" (10 mm) by analyzing the intensity of light reflected back from a nearby surface, outputting an analog photocurrent proportional to the reflected irradiance. What is a photoreflector? A photoreflector (also called a reflective optical sensor or photo interrupter-reflective type) is an optoelectronic device that combines a light emitter (typically an IR LED or VCSEL) and a photodetector (phototransistor, photodiode, or analog front-end IC) in a single package oriented so that the emitter beam reflects off a target surface back into the detector. Photoreflectors belong to the broader category of optical sensors within the sensor hierarchy: photoreflector -> optical proximity sensor -> reflective photosensor -> optoelectronic sensor -> electronic component. They are widely used for non-contact presence, distance, and surface detection where a simple binary or analog reading is sufficient. Key features of the RPR-0730 include a proprietary 940nm VCSEL emitter (replacing conventional IR LEDs for superior directionality and lower power consumption), a typical sensing distance of 10 mm, an analog output proportional to reflected light intensity, an ultra-compact SMD footprint, and integrated optical filtering tuned to the VCSEL wavelength to reject ambient light. The VCSEL architecture offers narrower spectral bandwidth and a more tightly collimated beam than a typical 940nm LED, improving signal-to-noise ratio in daylight and under fluorescent lamp interference. Typical applications include human proximity detection in sanitary equipment (faucets, soap dispensers, hand dryers, toilet flush valves), paper/end-of-tape detection in printers and ATMs, object detection on industrial conveyors, and energy-saving wake/sleep control for displays and appliances. The analog output allows threshold-based triggering with a single comparator or, with an ADC, continuous distance estimation within the useful range. When designing with the RPR-0730, mount the sensor so the optical axis is perpendicular to the target surface and provide a dust/condensation-free optical window, since the analog output is sensitive to both surface reflectance and contamination. Decouple VCC with a 0.1uF ceramic capacitor close to the pins and use the analog output through a transimpedance amplifier or comparator to convert photocurrent into a usable logic level. This page synthesizes distributor pricing, package details, and practical design guidance for the RPR-0730 beyond the datasheet alone.
TCA505BG - 40V Inductive Proximity Switch IC | Infineon
The Infineon TCA505BG is a bipolar monolithic integrated circuit designed for inductive proximity switches with integrated short-circuit and overload protection, supplied in a 16-pin PG-DSO-16-1 (SOIC-16, 3.90 mm body width) surface-mount package. The device operates from a wide 4 V to 40 V supply rail and consumes less than 0.8 mA quiescent current, making it well suited to industrial 24 V sensor loops. It integrates an LC-oscillator frontend, demodulator, and threshold switch, plus a 60 mA push-pull/push-pull-tri-state output stage capable of directly driving the load or an opto-coupler to a PLC. An inductive proximity switch is a non-contact position sensor widely used in industrial automation, where an LC tank oscillation is damped when a metallic target approaches the sensing coil. The TCA505BG replaces the discrete oscillator/detector/threshold chain with a single analog mixed-signal IC, easing EMC immunity design and reducing board area in 3-wire (PNP or NPN) and 2-wire sensor heads. As a Proximity Detector IC with analog input and analog output, the part belongs to the broader sensor interface IC category (sensor conditioning -> sensor interface IC -> mixed-signal IC -> semiconductor). Key features include short-circuit and overload protection of both output stages and the external load, a 40 V maximum supply rating with reverse polarity tolerance of -40 V on the supply pin, an integrated 5 kHz oscillator, and a response frequency up to 5 kHz. The output stage can be configured for PNP (source), NPN (sink), or tri-state switching via a single MODE pin, eliminating the need for separate catalog variants. Operating temperature covers the harsh industrial range of -40 C to +110 C, suiting outdoor panel mounting, mobile hydraulics, and conveyor controls. The IC uses a bipolar process with on-chip temperature compensation and watchdog blocks that continuously monitor the supply rail and output current. Threshold hysteresis is fixed internally, removing the typical external RC network and improving switching repeatability across the operating temperature range. Typical applications include 3-wire PNP/NPN inductive proximity sensors in factory automation, machine tool position feedback, automotive sensor modules, and conveyor/object detection on 24 V industrial power buses. It is also used in harsh-environment limit switches where integrated short-circuit and reverse-polarity protection reduce warranty returns. Designers should add a free-wheeling protection diode to the output when driving inductive loads, route the LC coil as a tight differential pair to the OSC pins, and place the supply bypass capacitor within 5 mm of VCC. Compared to earlier Siemens/Infineon proximity ICs, the TCA505BG removes the external trim resistors and adds active short-circuit protection. This page consolidates distributor pricing, drop-in alternative parts, parametric comparison, and design notes not collected in the manufacturer datasheet, accelerating BOM selection for industrial proximity-sensor designs.
VCNL36821S - 940nm IR Proximity Sensor, I2C, 300mm | Vishay
The Vishay VCNL36821S is a fully integrated proximity sensor (PS) that combines an infrared emitter (IRED), photodiode, signal processing IC, and 12-bit ADC into a single compact 8-pin SMD package. It operates from 1.7 V to 3.6 V supply voltage, drives the internal IRED at up to 156 mA pulsed current, and detects reflected 940 nm infrared light up to 300 mm distance through an I2C bus. The CMOS monolithic integration provides excellent ambient light rejection and low power consumption suitable for battery-powered devices. A proximity sensor is a non-contact optoelectronic device that emits infrared light and measures the intensity of light reflected back from a nearby object to estimate distance. The VCNL36821S belongs to the broader category of optical/photoelectric sensors, which sit within the sensor hierarchy: proximity sensor -> optical sensor -> environmental sensor -> semiconductor IC. This category enables touchless user interfaces in handheld, wearable, and consumer electronics by replacing mechanical buttons and capacitive touch panels. Key features include 12-bit proximity resolution, programmable IRED current up to 156 mA for adjustable range, individual high/low interrupt thresholds for power-saving wake-up, and a fixed I2C address interface with standard (100 kHz) and fast (400 kHz) modes. The integrated 940 nm IRED is invisible to the human eye and immune to sunlight interference when paired with the on-die-band optical filter. The 8-pin SMD module package is reflow-solderable per JEDEC J-STD-020 and rated MSL 3. The architecture uses a CMOS process with on-chip photodiodes, transimpedance amplifiers, and a 12-bit successive-approximation ADC. Programmable IRED drive current allows designers to trade off range versus power consumption: lower current for short-range ear-detection in earbuds, higher current for longer-range presence detection in laptops. The interrupt engine runs autonomously in the background, allowing the host MCU to sleep until an object crosses the threshold. Typical applications include smartphone and tablet touchless gesture control, true wireless stereo (TWS) earbud in-ear detection, laptop/lid-close detection, smart speaker user-presence wake-up, and industrial proximity sensing. The compact 8-SMD footprint fits inside space-constrained enclosures where discrete photodiodes plus analog front-end ICs would not fit. When designing with this device, keep the IRED drive current within the 156 mA pulsed maximum and place a 1 uF decoupling capacitor within 3 mm of the VDD pin to suppress switching transients. Use the interrupt pin rather than polling to maximize battery life. This page synthesizes Vishay datasheet parameters, distributor pricing tiers, drop-in alternatives, and practical application notes not found in the standalone manufacturer datasheet, giving engineers a single-page reference for design and sourcing decisions.
VCNL36821S-SB - VCNL36821S Proximity/ALS SensorXplorer™ Board | Vishay
The Vishay VCNL36821S-SB is a SensorXplorer™ demonstration board designed to evaluate the capabilities of the VCNL36821S proximity sensor and ambient light sensor (ALS) in a plug-and-play hardware platform. The board integrates the VCNL36821S sensor module and provides a 1.7 V to 3.6 V operating voltage range with 940 nm IR LED emitter and 156 mA peak drive capability, intended for handheld device and consumer product prototyping. What is a SensorXplorer™ demonstration board? A sensor evaluation board is a reference design platform provided by a sensor manufacturer to let engineers quickly characterize optical, motion, or environmental sensors without designing custom PCB hardware. The SensorXplorer™ family from Vishay is a USB-driven ecosystem where the daughter sensor board (such as VCNL36821S-SB) plugs onto a main controller board to provide I2C connectivity, power, and on-screen plotting of proximity counts and lux readings. Key features of the VCNL36821S-SB include a small SOT-23 footprint through the daughter-card VCNL36821S sensor module, integrated photodiodes, transimpedance amplifiers, and analog-to-digital converters realized on a single CMOS die. The proximity channel supports up to 300 mm detection range with programmable IRED current and individual high/low interrupt thresholds, while the ambient light channel delivers linear output over a wide dynamic range. I2C interface (up to 1 MHz) and a dedicated interrupt pin simplify integration with low-power microcontrollers. The board reflects the underlying VCNL36821S architecture, which combines a silicon photodiode, IRED, and digital signal processing in a single 8-pin SMD module. The CMOS process technology enables low standby current suitable for battery-powered always-on applications. Proximity programmable interrupt features of individual high and low thresholds offer the best utilization of resource and power saving on the microcontroller. Typical applications for the VCNL36821S-SB include smartphone proximity sensing for touch-screen lock, laptop/lid-close detection, smart speaker wake-on-approach, wearable tap/wear detection, and IoT presence detection in smart home hubs. Automotive cabin gesture detection is also feasible when paired with a qualified host MCU. When designing with this board, ensure the host controller can supply 1.7 V to 3.6 V to the sensor VDD and provides an I2C bus with proper pull-ups. The interrupt pin (pin 2 on the sensor) must be connected to a dedicated GPIO with the required pull-up resistor. This page synthesizes distributor stock levels, SensorXplorer™ ecosystem alternatives, and practical evaluation guidance not found in the standalone datasheet.
VCNL4040M3OE-H3 - 200mm I2C Proximity/ALS Sensor | Vishay Semiconductor
The Vishay Semiconductor VCNL4040M3OE-H3 is a fully integrated proximity sensor (PS), ambient light sensor (ALS), and high-power infrared emitter (IRED) housed in a single 8-pin SMD module with 200 mm (7.874 in) detection range, 16-bit I2C digital output, and 2.5 V to 3.6 V supply operation. It also operates as 3.3 V typical supply and includes an interrupt (INT) pin for threshold-based event signaling without continuous host polling. According to the Vishay datasheet for the VCNL4040 family, the device combines photodiodes, amplifiers, and analog-to-digital conversion circuits in a single CMOS die, allowing designers to replace a discrete photodiode-plus-ADC chain with one surface-mount module. Operating between 2.5 V and 3.6 V, the VCNL4040M3OE-H3 interfaces to any microcontroller over the standard I2C bus (up to 400 kHz fast mode) using a 7-bit slave address. A proximity sensor is an electronic module that emits infrared light and measures the intensity of the return signal to estimate the distance to a nearby surface. The SHIM (smart-LED-like) integration found in the VCNL4040 places the IRED driver, photo detection, ADC, and digital signal conditioning inside one package, and ambient light sensors share the same optical window to convert lux measurements into 16-bit digital counts via the same I2C bus. This category hierarchy maps to: proximity/ALS module -> optical sensor -> sensor IC -> semiconductor. The VCNL4040 occupies the position of a mid-range, fully integrated multi-function optical sensor in Vishay's VCNL product family, sitting between simpler PS-only modules and more expensive ToF (time-of-flight) alternatives. Key features include 16-bit effective resolution for both the ALS and PS channels, programmable IRED drive current with up to 200 mA peak pulse, integrated 940 nm IRED with factory-calibrated spectrum matching, and selectable integration times that allow designers to trade measurement noise against power consumption. The device integrates a low-noise photodiode, transimpedance amplifier, 16-bit sigma-delta ADC per channel, IRED driver with programmable current, I2C slave interface, and an interrupt output. A built-in temperature compensation mechanism mitigates IRED output drift across -40 °C to +85 °C. Eight selectable IRED modulation frequencies allow multi-device co-existence on the same PCB without cross- interference. Typical applications include display backlight dimming in smartphones and tablets, proximity detection for ear-detection in wearables, paper/hand presence detection in printers and copiers, automatic faucet and soap dispenser actuation, and industrial human-machine interface (HMI) touchless controls. Its compact 4.0 mm x 2.36 mm x 1.05 mm SMD footprint makes it well suited for space-constrained designs. When designing with this device, place a 100 nF bypass capacitor close to VDD and a 4.7 µF reservoir capacitor to handle IRED pulse transients. Keep the optical window free of opaque overmold and protect the front face with a transmissive IR cover that does not attenuate the 940 nm wavelength. Always honor the maximum IRED on-time duty cycle of 1% to avoid thermal damage. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
VL53L0CXV0DH/1 - Time-of-Flight Ranging Sensor | STMicroelectronics
The VL53L0CXV0DH/1 is a Time-of-Flight (ToF) laser-ranging sensor module from STMicroelectronics, designed for accurate distance measurement up to 2 meters. It integrates a 940nm VCSEL (Vertical-Cavity Surface-Emitting Laser), a single-photon avalanche diode (SPAD) array, and a microcontroller in a compact optical module. The device communicates via I2C interface and operates from a 2.8V supply, making it ideal for battery-powered applications. A Time-of-Flight sensor measures distance by emitting a light pulse and measuring the time it takes for the reflected light to return. The VL53L0C uses a VCSEL to emit infrared light and a SPAD array to detect the reflection, calculating distance with millimeter-level accuracy. This technology is superior to infrared proximity sensors because it provides absolute distance measurement rather than just presence detection, and it is less affected by ambient light and target color. Key features include a measurement range of 30mm to 2000mm, an accuracy of ±3% at typical conditions, and a fast measurement time of less than 30ms. The module operates from a 2.8V supply with a typical power consumption of 20mW during active ranging. It includes an I2C interface with a configurable address, an interrupt output for ranging completion, and a built-in VCSEL driver. The device is housed in a 4.4mm x 2.4mm x 1.0mm optical module with an integrated lens, providing a field of view of 25 degrees. The VL53L0C uses STMicroelectronics' FlightSense technology, which combines a VCSEL, SPAD array, and advanced algorithms to achieve high accuracy and robustness. The module includes an on-chip microcontroller that handles ranging calculations, calibration, and ambient light rejection. The I2C interface supports standard and fast modes up to 400kHz, and the device can be programmed for different ranging modes, including single-shot and continuous. Typical applications include smartphone proximity detection, robotics obstacle avoidance, drone landing assistance, and consumer electronics such as automatic faucets and vacuum cleaners. The compact size and low power consumption make it suitable for portable and battery-operated devices. When designing with the VL53L0C, ensure a clean power supply with adequate decoupling, and place the module with a clear field of view. The device requires a cover glass with high infrared transmittance, and the I2C lines should be pulled up with appropriate resistors. Calibration is performed at the factory, but additional calibration may be needed for specific cover glass or system integration.
VL53L1CBV0FY/1 - Long Range Time-of-Flight Sensor | STMicroelectronics
The VL53L1CBV0FY/1 is a state-of-the-art Time-of-Flight (ToF) ranging sensor with enhanced performance, manufactured by STMicroelectronics. It integrates a complete ToF system in a compact optical module, enabling accurate distance measurement up to 4 meters. The sensor operates at a supply voltage of 2.8V and communicates via I2C interface, making it ideal for a wide range of proximity and ranging applications. A Time-of-Flight (ToF) sensor measures distance by emitting a light signal and calculating the time it takes for the light to reflect back from an object. This technology is distinct from infrared (IR) proximity sensors, which only detect presence, and from ultrasonic sensors, which use sound waves. ToF sensors are part of the broader category of optical sensors and are widely used in robotics, consumer electronics, and industrial automation for precise distance measurement. Key features of the VL53L1CBV0FY/1 include a long ranging distance of up to 4 meters, a fast ranging frequency of up to 50 Hz, and a field of view (FOV) of 27 degrees. The sensor is housed in an optical module package, which integrates the emitter, receiver, and optics in a single component. It operates over a temperature range of -30°C to +85°C, ensuring reliable performance in various environments. The VL53L1CBV0FY/1 uses STMicroelectronics' patented ToF technology, which employs single-photon avalanche diodes (SPADs) to detect reflected light. This architecture enables high accuracy and immunity to ambient light, making it suitable for outdoor applications. The sensor also features a programmable region of interest (ROI), allowing users to optimize the field of view for specific applications. Typical applications include smartphone proximity detection, robotics obstacle avoidance, drone landing assistance, and industrial safety systems. The sensor's long range and fast ranging frequency make it ideal for applications requiring real-time distance measurement, such as autonomous navigation and collision avoidance. When designing with the VL53L1CBV0FY/1, it is important to consider the optical interface. The sensor requires a clear line of sight to the target, and the cover glass or window must be transparent to infrared light. Additionally, proper power supply decoupling and PCB layout are critical to minimize noise and ensure accurate measurements.
VL53L3CXV0DH/1 - Time-of-Flight Ranging Sensor | STMicroelectronics
The VL53L3CXV0DH/1 is a Time-of-Flight (ToF) ranging sensor from STMicroelectronics, designed for high-accuracy distance measurement in a compact optical module. It integrates a single-photon avalanche diode (SPAD) array, a VCSEL light source, and a low-power microcontroller in a 4.4 x 2.4 x 1.0 mm optical LGA package. The sensor provides absolute distance measurement up to 300 cm with millimeter-level accuracy, making it suitable for a wide range of proximity, gesture, and ranging applications. A Time-of-Flight (ToF) sensor measures distance by emitting a light pulse and calculating the time it takes for the reflected light to return. The VL53L3CXV0DH/1 uses a VCSEL (Vertical-Cavity Surface-Emitting Laser) to emit infrared light and a SPAD array to detect the reflected photons. This technology enables fast, accurate, and reliable distance measurement even in challenging lighting conditions. ToF sensors are part of the broader category of optical sensors, which also includes ambient light sensors, proximity sensors, and image sensors. In a system hierarchy, the VL53L3CXV0DH/1 sits at the sensor layer, providing raw distance data to a host processor via an I2C interface. Key features of the VL53L3CXV0DH/1 include a ranging distance of up to 300 cm, a fast ranging frequency of up to 50 Hz, and a field of view (FOV) of 27 degrees. The sensor operates from a 2.8V supply voltage and communicates via I2C, with an interrupt output for event-driven operation. It also features an on-chip histogram processing algorithm that improves robustness against ambient light and multi-object detection. The device is RoHS compliant and operates over a temperature range of -30°C to +85°C. The VL53L3CXV0DH/1 uses a histogram-based ranging architecture that enables multi-object detection and improved accuracy in cluttered environments. The integrated VCSEL emits at 940 nm, which is invisible to the human eye and safe for consumer applications. The sensor's low power consumption (typically 20 mA during ranging) and small form factor make it ideal for battery-powered devices. The I2C interface supports standard and fast modes, allowing easy integration with microcontrollers. Typical applications include smartphone camera autofocus, robotics obstacle avoidance, drone landing assistance, smart home presence detection, and industrial safety systems. The sensor's ability to measure absolute distance, rather than just proximity, enables advanced features such as gesture recognition and 3D mapping. In robotics, the VL53L3CXV0DH/1 can be used for collision avoidance and navigation, providing accurate distance data to the control system. When designing with the VL53L3CXV0DH/1, ensure proper optical alignment and a clear line of sight to the target. The sensor requires a small aperture in the enclosure to allow the VCSEL and SPAD to operate correctly. Additionally, the I2C address can be configured via a single pin, allowing multiple sensors to be used on the same bus. For optimal performance, place the sensor away from other infrared sources and avoid covering the optical window with materials that absorb infrared light.
VL53L5CXV0GC/1 - 8x8 Multi-Zone Time-of-Flight Sensor | STMicroelectronics
The STMicroelectronics VL53L5CXV0GC/1 is a state-of-the-art Time-of-Flight (ToF) ranging sensor with an 8x8 multi-zone capability, enabling simultaneous measurement of distances across 64 independent zones. It integrates a single-photon avalanche diode (SPAD) array, a low-power infrared laser, and advanced optics in a compact, reflowable module. The sensor operates at 940 nm wavelength, providing accurate ranging from 1 cm to 400 cm in typical conditions, with a field of view (FoV) of 61 degrees diagonal. It communicates via I2C (up to 1 MHz) or SPI interfaces, and includes an interrupt output for event-driven host communication. A Time-of-Flight (ToF) sensor is a type of optical sensor that measures distance by calculating the time it takes for emitted light to reflect off an object and return to the sensor. Unlike infrared proximity sensors that only detect presence, ToF sensors provide absolute distance measurements, making them essential for applications requiring precise depth sensing. In the broader system hierarchy, a ToF sensor is a type of optical sensor, which falls under the category of sensors, which are components of electronic systems that perceive the physical world. The VL53L5CXV0GC/1 is a direct ToF sensor, meaning it measures the round-trip time of light pulses directly, as opposed to indirect ToF methods that use phase-shift measurements. Key features of the VL53L5CXV0GC/1 include its 8x8 multi-zone ranging, which allows for depth mapping and object detection across a wide area. It offers a maximum ranging frequency of 60 Hz, enabling real-time depth sensing for gesture recognition and SLAM applications. The sensor has a low power consumption of 1.5 mA in continuous operation, making it suitable for battery-powered devices. It also features an on-chip microcontroller that handles ranging algorithms, reducing host processing load. The module is housed in a 6.4 mm x 3.0 mm x 1.5 mm optical module package, which is reflowable and compatible with standard SMT assembly. Technically, the VL53L5CXV0GC/1 uses a SPAD array to detect individual photons, achieving high sensitivity even in low-light conditions. The integrated laser driver emits short infrared pulses, and the time-of-flight is measured with picosecond resolution. The sensor includes a histogram-based algorithm that distinguishes multiple targets and suppresses crosstalk, improving accuracy in complex scenes. The device operates from a 2.8 V supply voltage, with I2C and SPI interfaces for flexible integration. It also includes a programmable GPIO for interrupt generation, which can be configured for various events such as new data ready or threshold crossing. Typical applications include robotics for obstacle avoidance and navigation, smart home devices for presence detection and gesture control, and consumer electronics for camera autofocus assistance. In robotics, the multi-zone capability allows the sensor to map the environment in real-time, enabling collision avoidance. In smart home devices, it can detect human presence for energy-saving automation. In camera systems, it provides fast and accurate autofocus even in low-light conditions. When designing with this sensor, ensure proper optical alignment and avoid covering the module with materials that are opaque to 940 nm light. The sensor requires a clean power supply with adequate decoupling, and the I2C address can be configured via a pin. For best performance, calibrate the sensor in the final product environment to account for cover glass and other optical elements.