ZSSC5101
xMR Sensor Signal Conditioner
Datasheet
Brief Description
Benefits
The ZSSC5101 is a CMOS integrated circuit for con-
verting sine and cosine signals obtained from
magnetoresistive bridge sensors into a ratiometric
analog voltage with a user-programmable range of
travel and clamping levels.
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No external trimming components required
PC-controlled configuration and single-pass
calibration via one-wire interface allows
programming of fully assembled sensors
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Can be used with low-cost ferrite magnets
The ZSSC5101 accepts sensor bridge arrangements
for both rotational as well as linear movement.
Depending on the type of sensor bridge, a full-scale
travel range of up to 360 mechanical degrees can be
obtained.
Allows large air gaps between sensors and
magnets
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Optimized for automotive environments with
extended temperature range and special
protection circuitry with excellent electro-
magnetic compatibility
Programming of the device is performed through the
output pin, allowing in-line programming of fully
assembled 3-wire sensors. Programming param-
eters are stored in an EEPROM and can be re-pro-
grammed multiple times.
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Power supply monitoring
Sensor monitoring
Detection of EEPROM memory failure
Connection failure management
The ZSSC5101 is fully automotive-qualified with an
ambient temperature range up to 160°C.
High accuracy: ± 0.15° integral nonlinearity (INL)
after calibration
Features
Available Support
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Ratiometric analog output
Up to 4608 analog steps
Step size as small as 0.022°
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Evaluation Kit
Application Notes
Programming through output pin via
one-wire interface
Physical Characteristics
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Wide operation temperature: -40 C to +160 C (die)
Supply voltage: 4.5V to 5.5V
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Offset calibration of the bridge input signals
Programmable linear transfer characteristic:
SSOP-14 package, bare die, or unsawn wafer
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Zero position
Angular range
ZSSC5101 Typical Application Circuit
Upper and lower clamping levels
Rising or falling slope
Sensor Bridges
VDDS
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Loss of magnet indication with programmable
threshold level
Accepts anisotropic, giant, and tunnel magneto-
resistive bridge sensors (AMR, GMR and TMR)
VSINP
VSINN
CB
100nF
+5V
Load
Circuit
VDDE
VOUT
VSSE
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Programmable 32-bit user ID
CRC, error detection, and error correction
on EEPROM data
VCOSP
VCOSN
Rout
Cout
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Diagnostics: broken-wire detection
Automotive-qualified to AEC-Q100, grade 0
VSSS
© 2016 Integrated Device Technology, Inc.
1
January 22, 2016