ZSSC3036CC1C datasheet(20/49 Pages) ETC2

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ZSSC3036

Low-Power 16-Bit Sensor Signal Conditioner IC

Data Sheet

May 28, 2013

— Rev. 1.20

the prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.

20 of 49

Functional Description

3.1.

Power Up

Specifications for this section are given in sections 1.2 and 1.3. On power-up, the ZSSC3036 communication

interface is able to receive the first command after a time tSTA1 from when the VDD supply is within operating

specifications. The ZSSC3036 can begin the first measurement after a time of tSTA2.from when the VDD supply is

operational.

The wake up time from Sleep State to Active State (see section 3.3) after receiving the activating command is

defined as tWUP1 and tWUP2. In Command Mode, subsequent commands can be sent after tWUP1. The first

measurement starts after tWUP2 if a measurement request was sent.

3.2.

Measurements

Available measurement procedures are

 AZBM: auto-zero bridge measurement

 BM: bridge measurement

 AZTM: auto-zero temperature measurement

 TM: temperature measurement

AZBM: The configuration for bridge measurements is loaded. The Multiplexer block connects the amplifier input

to the AGND analog ground reference. An analog-to-digital conversion is performed so that the inherent system

offset for the bridge configuration is converted by the ADC to a 16-bit digital word.

BM: The configuration for bridge measurements is loaded. The Multiplexer connects the amplifier input to the

bridge pins INP and INN. An analog-to-digital conversion is performed. The result is a 16-bit digital word.

AZTM: The configuration for temperature measurements is loaded. The Multiplexer connects the amplifier input to

AGND. An analog-to-digital conversion is performed so that the inherent system offset for the temperature

configuration is converted by the ADC to a 16-bit digital word.

TM: The configuration for temperature measurements is loaded. The Multiplexer connects the Amplifier input to

the internal temperature sensor. An analog-to-digital conversion is performed. The result is a 16-bit digital word.

The typical application’s measurement cycle is a complete SSC measurement (using the command AC

HEX) with

AZBM, BM, AZTM, and TM followed by a signal correction calculation.

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