ISL29501IRZ Sensor IC 2.7V to 3.3V Time of Flight Signal Processing IC with QFN-24 Package

The ISL29501 is a Time of Flight (ToF) based signal processing integrated circuit that enables low-cost, low-power, and long-range optical distance sensing when combined with an external emitter and detector.

The sensor features a built-in current DAC circuit that drives an external LED or laser. Modulated light from the emitter reflects off the target and is received by the photodiode, which converts the returned signal into current for processing by the ISL29501. An on-chip Digital Signal Processor (DSP) calculates the time of flight, which is proportional to the target distance.

The ISL29501 includes an I2C interface for configuration and control and is wavelength agnostic, allowing use of various optical wavelengths suited for specific applications.

• Enables proximity detection and distance measurement
• Modulation frequency of 4.5MHz
• Emitter DAC with programmable current up to 255mA
• Operates in Continuous and Single Shot mode
• On-chip active ambient light rejection
• Auto gain control mechanism
• Interrupt controller
• Supply voltage range of 2.7V to 3.3V
• I2C interface supporting 1.8V and 3.3V bus
• Low profile 24 Ld 4x5 QFN package

• Precise long-range distance measurement
• Drone / robot collision avoidance and soft landings
• Industrial automation
• Car parking sensors
• Gate and door sensors
• Silo level monitoring
• Intermodal and ocean container cargo loading sensors
• Human presence detection and obstacle avoidance
• Smart homes and offices
• Smart appliances, toilets and fixtures
• Smart kiosks
• People counting