Renesas ZMID4200

The ZMID4200 is an inductive position sensor IC with analog, PWM or SENT output, used for absolute rotary and linear motion sensing in industrial and consumer applications. The ZMID4200 uses the physical principles of induction in a wire loop and Eddy currents to detect the position of a metallic target that is sliding or rotating above a set of coils. Three coils are typically printed as copper traces on a PCB. The ZMID4200 can detect the absolute mechanical position of the metallic target and display it. The ZMID4200 is  qualified  to function up to 150°C ambient temperature.

Key features

• Durability thanks to contactless technology
• Scalable resolution for small angular excursions or small linear measurements
• Enhancement of the accuracy through linearity correction
• Automatic gain control supporting a wide range of coil designs

Additional features

• Inductive principle
• Rotation sensing up to a full turn of 360°
• Analog, PWM or SENT output with programmable limits
• Overvoltage, reverse polarity, ESD and short circuit protection
• 10-bit resolution (Analog and PWM)
• 12-bit resolution (SENT)
• Power or ground loss detection
• Facilitates redundant design requirements
• Programmable linearity correction
• Adaptive gain control supporting a wide range of coil designs
• Diagnostic features
• Overvoltage and reverse polarity protection up to ±18V
• Small 14-TSSOP package

Applications

• Rotary position sensors up to 360°
• Linear motion sensors
• Small-angle sensors or arc-motion sensors

Available tools

The ZMID4201STKIT is an all-in-one starter kit, providing fully-functional evaluation of the ZMID4200 position sensor. This kit combines the linear, rotary, and arc types into a single kit, along with the communications board required to interface with the control software. This evaluation kit allows to select the wanted interface among Analog (default), PWM or SENT.