10-Bit Ultra Power Magnetic Absolute Rotary

Manufacturer:
MFG Part #:

IC-TW11 QFN16-4X4

Part #:
IC-TW11QFN16-4X4
Availability:
In Stock
RoHS Status:
Unit Price:$5.22
Qty:
Minumum Qty: 1

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Product Information

The iC-TW11 is a single-chip magnetic rotary encoder for low-voltage (1.8 V – 3.3 V) and low-power end-of-shaft applications. It includes three Hall elements, automatic power management features, and offers 10-bit resolution in a space-saving 4 mm x 4 mm QFN16 package. 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 (4000 samples per second) with power consumption proportional to the conversion rate. Low power mode reduces 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.

Applications:

• Battery-powered portable equipment
• Digital potentiometers and front panel controls
• Servo or stepper motor feedback
• Assembly robots and autonomous vehicles
• Office equipment and household appliances


Symmetry Electronics (and its e-commerce division: SemiconductorStore.com) is an authorized iC-Haus distributor.
 

Features

10-bit angle resolution
Split power supplies for 1.8 V I/O applications
Sampling initiated via SPI command or dedicated pin
Interrupt input and output for chaining multiple devices
Up to 4 kHz sampling frequency
21 A typical supply current at 10 Hz sampling frequency
Low power mode reduces current to 3 A at 10 Hz
Automatic sleep mode draws = 100 nA between samples
Standard 4-wire SPI communication
Automatic Hall array gain control (AGC)
Operational temperature range of -40 C to +125 C
Space-saving, RoHS compliant 4x4 mm QFN16 package
 

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