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PDF ZSSC5101 Data sheet ( Hoja de datos )
| Número de pieza | ZSSC5101 | |
| Descripción | xMR Sensor Signal Conditioner | |
| Fabricantes | IDT | |
| Logotipo |  |
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xMR Sensor Signal Conditioner
ZSSC5101
Datasheet
Brief Description
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.
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.
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.
The ZSSC5101 is fully automotive-qualified with an
ambient temperature range up to 160°C.
Features
• Ratiometric analog output
• Up to 4608 analog steps
• Step size as small as 0.022°
• Programming through output pin via
one-wire interface
• Offset calibration of the bridge input signals
• Programmable linear transfer characteristic:
Zero position
Angular range
Upper and lower clamping levels
Rising or falling slope
• Loss of magnet indication with programmable
threshold level
• Accepts anisotropic, giant, and tunnel magneto-
resistive bridge sensors (AMR, GMR and TMR)
• Programmable 32-bit user ID
• CRC, error detection, and error correction
on EEPROM data
• Diagnostics: broken-wire detection
• Automotive-qualified to AEC-Q100, grade 0
Benefits
• No external trimming components required
• PC-controlled configuration and single-pass
calibration via one-wire interface allows
programming of fully assembled sensors
• Can be used with low-cost ferrite magnets
• Allows large air gaps between sensors and
magnets
• Optimized for automotive environments with
extended temperature range and special
protection circuitry with excellent electro-
magnetic compatibility
• Power supply monitoring
• Sensor monitoring
• Detection of EEPROM memory failure
• Connection failure management
• High accuracy: ± 0.15° integral nonlinearity (INL)
after calibration
Available Support
• Evaluation Kit
• Application Notes
Physical Characteristics
• Wide operation temperature: -40 C to +160 C (die)
• Supply voltage: 4.5V to 5.5V
• SSOP-14 package, bare die, or unsawn wafer
ZSSC5101 Typical Application Circuit
Sensor Bridges
VDDS
VSINP
VSINN
VCOSP
VCOSN
CB
100nF
VDDE
VOUT
VSSE
+5V
Load
Circuit
Rout
Cout
VSSS
© 2016 Integrated Device Technology, Inc.
1
January 22, 2016
1 page  
ZSSC5101 Datasheet
1 IC Characteristics
1.1. Absolute Maximum Ratings
Table 1.1 Absolute Maximum Ratings
Parameter
1.1.1.1. Supply voltage at VDDE pin
1.1.1.2. Voltage at VDDS pin
1.1.1.3. Voltage at VSINP, VSINN, VCOSP, and VCOSN pins
1.1.1.4. Voltage at VOUT pin
1.1.1.5. Storage temperature
Symbol
VDDE
VDDS
VOUT
TS
Min
-0.3
-0.3
-0.3
-0.3
-60
1.2. Operating Conditions
Table 1.2 Operating Conditions
Note: See important notes at the end of the table.
Parameter
Symbol
1.2.1.1.
1.2.1.2.
1.2.1.3.
1.2.1.4.
Supply voltage for normal operation
Operating ambient temperature range, bare die 1)
Extended ambient temperature range, bare die 1), 2)
Operating ambient temperature range, SSOP-14
VDDE
TA
TA
TA
1.2.1.5. Temperature range – EEPROM programming
TA-EEP
1.2.1.6. Blocking capacitance between VDDE and VSSE pins
CB
1.2.1.7.
1.2.1.8.
1.2.1.9.
Sensor bridge current (sine and cosine)
Capacitive load at outputs
Output pull-up or pull-down load
IBRIDGE
COUT
RLOAD
1.2.1.10. Angular rate (mechanical)
1.2.1.11. EEPROM programming time for a single address
(condition: fDIGITAL is within specification; see 1.3.1.7)
1.2.1.12. Data retention time of memory over lifetime at
maximum average temperature 50°C
tPROG
tRET
1.2.1.13. EEPROM endurance
1.2.1.14. Range of differential input voltage
(range of differential sensor output signal)
VIN-RANGE
1.2.1.15. Range of offset voltage at input that can be digitally
compensated
VOFFSET-COMP
1.2.1.16. Range of offset temperature compensation at input
that can be digitally compensated
TCOEFF-RANGE
Min
4.5
-40
-60
-40
10
75
5
20
17
200
-4
-4
Typ.
Max
5.7
VDDE+0.3
VDDS
VDDE+0.3
160
Typ.
5.0
100
Max
5.7
160
160
150
150
4.0
20
1000
±23
+4
+4
Unit
V
V
V
V
°C
Unit
V
°C
°C
°C
°C
nF
mA
nF
kΩ
°/s
ms
years
cycles
mV/V
mV/V
(µV/V)/K
© 2016 Integrated Device Technology, Inc.
5
January 22, 2016
5 Page 
ZSSC5101 Datasheet
1.3.7. Supervision Circuits
See section 2.4 for details for specifications in Table 1.9 that are related to power-up/power-down characteristics.
Table 1.9 Supervision Circuits
Parameter
Symbol
Condition
Min
1.3.7.1.
1.3.7.2.
1.3.7.3.
1.3.7.4.
Time to enter Command
Mode 1)
Power watch on-level 2)
Power watch off-level 3)
Hysteresis on/off
1.3.7.5.
1.3.7.6.
1.3.7.7.
Power-on level 4)
Lower diagnostic range
Upper diagnostic range
tCODE
VPW-ON
VPW-OFF
VHYST
VON
VDIAG-LOW
VDIAG-HIGH
Start-up sequence
16
VHYST =
VPW-ON – VPW-OFF
Fixed as DAC value 96
Fixed as DAC value
5024
4.05
3.9
100
2.4
96%
1) After power-on, device checks for correct signature until tCODE expires.
2) If VDDE is above this level, VOUT is on in Normal Operating Mode.
3) If VDDE is below this level, VOUT is set to the defined Diagnostics Mode.
4) If VDDE is equal to or below this level, VOUT is in reset state or diagnostics LOW state (see Table 2.1).
Typ. Max
20 26
4.30 4.45
4.2 4.3
350
2.7 3.3
4%
Unit
ms
V
V
mV
V
VDDE (min)
VDDE (min)
1.3.8. Power Loss Circuit
Table 1.10 Power Loss Circuit
Parameter
1.3.8.1. Output impedance at VOUT
for power loss
Symbol
RP-LOSS
Condition
VDDE – VSSE < 0.7V
Corresponds to
diagnostics range for
pull-up/pull-down ≥ 5kΩ
Min Typ. Max
200
Unit
Ω
© 2016 Integrated Device Technology, Inc.
11
January 22, 2016
11 Page | ||
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