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ADVANCED COMMUNICATIONS & SENSING
USER GUIDE
SX8724SEVK
Evaluation Kit for SX8724S Data Acquisition System
ACS - Revision 1.0 May 2011
© Semtech Corp.
SX8724SEVK
USER GUIDE
Evaluation Kit for SX8724S Data Acquisition System
Description
The SX8724SEVK is a platform for SX8724S evaluation
and sensing application prototyping. It consists of a
single board with the ZoomingADC device interfaced to
the computer through a USB gateway.
All SX8724S I/Os are available and placed on breakout
pads for easy access. The tool is intended to be the
interface between the sensor and the PC in order to
ease the handling of the SX8724S.
Equipment Needed
PC with Windows XP or a latest version
Powered USB 2.0 port
Features
Evaluation Board
• Directly connects most types of sensors
• Extended temperature range from -40 to 125°C
• 2.4V to 5.5V operation
• Supply from 5V USB, externally or regulated 3.3V
• USB interface with gateway to the SX8724S
• On board master MCU with flash memory, access
to all IO
• Prototyping area
• I/Os, board supplies and grounds placed on pads
Graphical User Interface
• Easy settings through registers and controls
• System and device performance analysis tool
• Save and load configurations
• Log to file
SX8724S ZoomingADC System Evaluation
• Up to 16-bit differential data acquisition
• Programmable gain: (1/12 to 1000)
• Sensor offset compensation up to 15 times full
scale of input signal
• 3 differential or 6 single-ended signal inputs
• Programmable Resolution versus Speed versus
Supply current
• External reference input voltage
• Internal reference output
• Digital outputs to bias sensors
• Low-power (250 uA for 16b @ 500 S/s)
Digital Interface
• Access to SPI signal
• ADC conversion ready
• 2 GPIO
• Possibility to chain boards on the same bus
Application Examples in this User Guide
• Interfacing your first pressure sensor
Ordering Informations
EVK Part Number
Function
SX8724SEVK
SX8724S (SPI) Evaluation
