INTRODUCTION

The SMD1108 is a versatile, programmable 8-channel, 10-bit Data Acquisition System that is designed to operate autonomously, relieving the system host and logic board of the environmental monitoring tasks.

Programming of configuration, control and calibration values by the user can be simplified with the interface adapter and Windows GUI software obtainable from Summit Microelectronics.

FEATURES

● Programmable 8 Channel 10-Bit A to D converter

♦ Programmable Sequencing of Analog Switches in Auto-Monitor Mode

♦ Resolution of 10 bits

♦ Differential Non-Linearity of ±1LSB

♦ Top 4 Channels Programmable, Nonvolatile Upper/Lower IRQ Limits

♦ Bottom 4 Channels Tied to Matching Programmable, Nonvolatile Comparators

♦ 4 Companion Over-current Comparators

● Internal Temperature Sensor

● Programmable LED Driver Outputs

● Programmable, Nonvolatile Combinatorial Reset logic

● Nonvolatile Status Capture Register

● Two Programmable, Nonvolatile Watchdog Timers

● 1K-Bit Nonvolatile Memory

● Industry Standard 2-Wire Interface

♦ Nonvolatile Configuration Registers

♦ ADC Conversion Results

♦ Memory Array

♦ Mechanism for System Level Presence Detect