ZMID4200 Datasheet | Renesas

Description The ZMID4200 is an inductive position sensor IC, applicable for absolute rotary or linear motion sensing in industrial, medical, and consumer applications. The ZMID4200 uses the physical principles of induction in a wire loop and eddy currents to detect the position of an electrically conducting target that is sliding or rotating above a set of coils, consisting of one transmitter coil and two receiver coils. The three coils are typically printed as copper traces on a printed circuit board (PCB). They are arranged such that the transmitter coil induces a secondary voltage in the receiver coils that depends on the position of the metallic target above the coils. A signal representative of the target’s position over the coils is obtained by demodulating and processing the secondary voltages from the receiver coils. The target can be any kind of metal, such as aluminum, steel, or a PCB with a printed copper layer. Three output options are available, selectable by user programming: - 10-bit Analog output (default) - 10-bit PWM digital output (programming option) - 12-bit SENT digital output (programming option) Physical Characteristics - Operation temperature: -40 C to +150°C - Supply voltage: 4.5V to 5.5V - Small 14-TSSOP package Application Usage - Qualified for industrial, medical and consumer applications only - not qualified for usage in automotive applications Typical Applications - Rotary position sensors up to 360°; e.g. rotary actuators, potentiometer replacement - Small-angle sensors or arc-motion sensors, e.g. industrial pedal or valve sensors, robotics - Linear motion sensors, e.g. linear-actuators, position sensors, fluid-level sensors, slide potentiometer replacement Features - Position sensing based on inductive principle - Cost effective; no magnet required - Immune to magnetic stray fields; no shielding required - Suitable for harsh environments and extreme temperatures - Only three wires (ground, supply, output) - Nonvolatile user memory;...