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ZSC31014 Datasheet(PDF) 13 Page - Integrated Device Technology

Part # ZSC31014
Description  Digital Output Sensor Signal Conditioner
PDF  58 Pages
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

ZSC31014 Datasheet(HTML) 13 Page - Integrated Device Technology

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ZSC31014 Datasheet
© 2016 Integrated Device Technology, Inc.
13
January 20, 2016
2
Circuit Description
2.1. Signal Flow and Block Diagram
The ZSC31014 uses a charge-balancing ADC that provides low noise 14-bit samples. The system clock can
operate at 1MHz (lower power, better noise performance) or 4MHz (faster sample rates). The PreAmp nulls its
offset over temperature and offers a wide range of selectable analog gain settings. The on-chip digital signal
processor (DSP) core uses coefficients stored in EEPROM to precisely calibrate/condition the amplified
differential input signal. Temperature can be measured from an internal temperature sensor, which can be
calibrated and output as well as used to compensate for temperature effects of the sensor bridge.
Direct interfacing to µP controllers is facilitated via I
2C™ digital protocol or optional SPI. I2C™ is used as the
calibration interface and can be used in the final application. SPI is only supported for end applications.
Figure 2.1
ZSC31014 Block Diagram
INMUX
PreAmp
VDD
(2.7V - 5.5V)
VSS
EEPROM w/
Charge Pump
& Checksum
DSP
Core
POR/Oscillator
A
D
14-Bit ADC
I
2C™ or SPI
Interface
Temperature
Reference
VBP
RBiciLite™
ZSC31014
Bsupply
Optional
Bsink
0.1µF
INT/SS
SDA/MISO
SCL/SCLK
Sensor
Diagnostics
VBN



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