ZSSC3036

Low-Power 16-Bit Sensor Signal Conditioner IC

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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2.3.3.

Temperature Measurement

The ZSSC3036 provides an internal temperature sensor measurement to allow compensation for temperature

effects. See section 1.3 for the temperature sensor resolution. The temperature sensor uses bipolar transistors.

Any transistor circuitry mismatch is suppressed by dynamic element matching technique. The temperature output

signal is a differential voltage that is adapted by the amplifier for the ADC input.

For temperature measurements, the ADC offset and amplifier gain setting are defined by ZMDI. The ADC

MSB/LSB segmentation is programmable by the user for optimizing noise immunity or conversion time (see

section 2.3.2).

2.3.4.

Bridge Supply

The ZSSC3036 provides dedicated bridge supply pins VDDB and VSSB. The ADC reference voltages for the

sensor bridge measurement are derived from these internal voltages so that bridge supply disturbances are

2.4.

Digital Section

2.4.1.

Digital Signal Processor (DSP) Core

The DSP Core block performs the algorithm for correcting the sensor signal. The resulting coefficients are stored

in the MTP memory. When the measurement results are available, the "end of conversion" signal is set at the

EOC pin. The internal EOC information is valid only if both the measurement and calculation have been

completed.

2.4.2.

MTP Memory

The ZSSC3036

’s memory is designed with an OTP (one-time programmable) structure. The memory is organized

in 4 one-time programmable pages. When data in the currently valid memory page needs to be updated, normally

a new page must be selected by increasing the page counter and the whole memory content must be written in its

updated version. The user has access to a 24 x 16 bit storage area for values such as calibration coefficients.

Dedicated calibration values are stored in an area not accessible to the user. The required programming voltage

is generated internally in the ZSSC3036 whereas increased ZSSC3036 power supply requirements must be

fulfilled during programming (see Memory Programming Voltage in section 1.3). There is no over-write or erase

function for the MTP memory.

The physical memory function is such that each single bit that has not yet been set to 1 (i.e., remains 0) can still

be changed to 1, so it is possible to (partially) re-program an MTP register as shown in the following example:



