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PDF ZSSC3036 Data sheet ( Hoja de datos )
| Número de pieza | ZSSC3036 | |
| Descripción | High Resolution 16-Bit Sensor Signal Conditioner | |
| Fabricantes | Zentrum Mikroelektronik Dresden | |
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Data Sheet
Rev. 1.20 / May 2013
ZSSC3036
Low-Power, High-Resolution 16-Bit Sensor Signal Conditioner
Mobile Sensing ICs
Smart and Mobile
1 page  
ZSSC3036
Low-Power 16-Bit Sensor Signal Conditioner IC
3.7. Calibration Sequence ...........................................................................................................................39
3.7.1. Calibration Step 1 – Assigning Unique Identification .....................................................................40
3.7.2. Calibration Step 2 – Data Collection ..............................................................................................40
3.7.3. Calibration Step 3 – Coefficient Calculations.................................................................................41
3.8. The Calibration Math ............................................................................................................................41
3.8.1. Bridge Signal Compensation .........................................................................................................41
3.8.2. Temperature Signal Compensation ...............................................................................................44
4 Die Dimensions and Pad Assignments .......................................................................................................45
5 Quality and Reliability..................................................................................................................................46
6 Ordering Sales Codes .................................................................................................................................47
7 Related Documents.....................................................................................................................................47
8 Glossary ......................................................................................................................................................48
9 Document Revision History .........................................................................................................................49
Table of Figures
Figure 2.1 ZSSC3036 Functional Block Diagram ...........................................................................................11
Figure 2.2 ADC Offset.....................................................................................................................................17
Figure 3.1 Operational Flow Chart: Power Up ................................................................................................22
Figure 3.2 Operational Flow Chart: Command Mode and Normal Mode .......................................................23
Figure 3.3 SPI Configuration CPHA=0 ...........................................................................................................27
Figure 3.4 SPI Configuration CPHA=1 ...........................................................................................................28
Figure 3.5 SPI Command Request .................................................................................................................28
Figure 3.6 SPI Read Status ............................................................................................................................29
Figure 3.7 SPI Read Data ...............................................................................................................................29
Figure 3.8 I2C™ Command Request ..............................................................................................................30
Figure 3.9 I2C™ Read Status..........................................................................................................................30
Figure 3.10 I2C™ Read Data ............................................................................................................................31
Figure 3.11 Memory Program Operation ..........................................................................................................32
Figure 4.1 ZSSC3036 Pad Placement............................................................................................................45
List of Tables
Table 1.1
Table 1.2
Table 1.3
Table 1.4
Table 2.1
Maximum Ratings ............................................................................................................................7
Operating Conditions .......................................................................................................................7
Requirements for VDD Power-on Reset..........................................................................................8
Electrical Parameters.......................................................................................................................8
Amplifier Gain: Stage 1 ..................................................................................................................12
Data Sheet
May 28, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.20
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without
the prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
5 of 49
5 Page 
ZSSC3036
Low-Power 16-Bit Sensor Signal Conditioner IC
2 Circuit Description
2.1. Brief Description
The ZSSC3036 provides a highly accurate amplification of bridge sensor signals. The compensation of sensor
offset, sensitivity, temperature drift, and non-linearity is accomplished via an 18-bit DSP core running a correction
algorithm with calibration coefficients stored in an MTP memory. The ZSSC3036 can be configured for a wide
range of resistive bridge sensor types. A digital interface (SPI or I2C™) enables communication. The ZSSC3036
supports two operational modes: Normal Mode and Command Mode. Normal Mode is the standard operating
mode. Typically in Normal Mode, the ZSSC3036 wakes up from a Sleep State (low power), runs a measurement
in Active State, and automatically returns to the Sleep State. (See section 3.3 for details on operational modes.)
2.2. Signal Flow and Block Diagram
See Figure 2.1 for the ZSSC3036 block diagram. The sensor bridge supply VDDB and the power supply for analog
circuitry are provided by a voltage regulator, which is optimized for power supply disturbance rejection (PSRR).
See section 1.4 for a graph of PSRR versus frequency. To improve noise suppression, the digital blocks are
powered by a separate voltage regulator. A power supervision circuit monitors all supply voltages and generates
appropriate reset signals for initializing the digital blocks.
The state machine controls the analog circuitry to perform the three measurement types: bridge, temperature, and
offset measurement. The multiplexer selects the signal input to the amplifier, which can be the external signals
from the input pins INP and INN, the internal temperature reference sensor signals, or an input short for
measuring offset. A full measurement request will trigger an automatic sequence of all measurement types and all
input signals. The Temperature Reference Sensor block is based on a resistive sensing element.
Figure 2.1 ZSSC3036 Functional Block Diagram
VDDB
VTP Temperature
Reference
VTN Sensor
AGND / CM
Generator
Vreg int
Bias Current
Generator
Voltage
Regulator
Power Ctr.
ZSSC3036
VDD
VSS
Sensor
Bridge
INP
INN
VSSB
Power-ON
Reset
Pre-
Amplifier
Clock
Generator Ring
Oscillator
A
D
16 Bit
System
Control
Unit
18-bit DSP Core
(Calculations,
Communication)
EOC
MTP
ROM
SPI
I²CTM
SCLK/SCL
SS
MOSI/SDA
MISO
SEL
Data Sheet
May 28, 2013
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.20
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without
the prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
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