iC-TW11 QFN16-4x4

Description

The iC-TW11 is a single-chip magnetic rotary encoder for low voltage (1.8-3.3 V) and low-power endof-shaft applications. It includes three Hall elements, automatic power management features, and offers 10-bit resolution in a space-saving 4x4mm QFN package with 16 pins. Built-in automatic gain control (AGC) assures optimum analog-to-digital conversion under all conditions with no setup. A noise filter improves measurement stability, and can be disabled to reduce power consumption.

The iC-TW11 supports a maximum conversion rate of 4 kHz (4 000 samples per second) with power consumption proportional to the conversion rate. Low power mode reduces the supply current by a factor of 7 while increasing the maximum sampling rate to 20 kHz. Sampling is initiated over the SPI interface or via a dedicated pin for application versatility.

Communication and control of the iC-TW11 is via a 4-wire SPI interface and multiple devices can be chained together for efficient usage. Absolute position angle, angle-equivalent sine and cosine values, and the three raw Hall element voltages can all be read over the SPI interface allowing both simple and sophisticated applications to be implemented easily.

Features