Data Sheet
NSE-5310
Miniature Position Encoder SOIC with Zero
Reference and I²C Output
1 General Description
The TRACKER NSE-5310 is an incremental position sensor with on-
chip encoding for direct digital output. A Hall element array on the
chip is used to derive the incremental position of an external
magnetic strip placed above the IC at a distance of 0.3 mm (typ).
This sensor array detects the ends of the magnetic strip to provide a
zero reference point.
The integration of Hall-effect position sensors, analog front end and
digital signal processing on a single IC chip provides an ingeniously
small position sensor, without the need for external pulse counters.
Direct digital output is accessible over the serial interface using I²C
protocol.
The TRACKER NSE-5310 provides absolute position information
over the length of a magnet pole pair (2 mm). A user can count pole
pairs and achieve absolute position information over the entire length
of the magnet (essentially unlimited).
With better than 0.5 micron resolution, the TRACKER is a robust,
cost-effective alternative to miniature optical encoders. It can be
used as a linear or off-axis rotary encoder.
2 Key Features
Direct digital output using I²C protocol
End-of-magnet detection for built-in zero reference
0.488
μm
resolution
< 2
μm
bi-directional repeatability
< ±10 µm absolute error
On-chip temperature sensor
Magnetic field strength monitor
Available in TSSOP or 3.9 mm x 2.5 mm die for chip-on-board
mounting
Custom packaging such as wafer-level chip scale packaging
can be provided. Minimum order quantities may apply.
RoHS compliant
3 Applications
The NSE-5310 is ideal for Micro-actuator and servo drive feedback,
Replacement for optical encoders, Optical and imaging systems,
Consumer electronics, Precision biomedical devices,
Instrumentation and automation, Automotive applications, and
Integrated closed-loop motion systems using New Scale’s
SQUIGGLE micro motor.
Figure 1. TRACKER NSE-5310 Block Diagram
VDD3V3
MagINCn
MagDECn
Pos
Mag
VDD5V
LDO 3.3V
Sin
Cos
PWM
Interface
PWM
SDA
DSP
Linear Hall
Array
&
Frontend
Amplifier
AGC
AGC
Temperature sensor
AGC
Absolute
Interface
(I
2
C)
SCL
AO
CSn
OTP
Register
NSE-5310
Programming
Parameters
Incremental
Interface
Prog
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