XE8805 Datasheet, PDF (1/156 Pages) Semtech Corporation – Data Acquisition MCU

XE8805/05A Sensing Machine
Data Acquisition MCU
with Zooming ADC and DACs
XE8805/05A – SX8805R Sensing
Machine – Data Acquisition with 16+10 bit
ZoomingADC™ and buffered DACs
General Description
The XE8805A is a data acquisition ultra low-
power low-voltage system on a chip (SoC) with a
high efficiency microcontroller unit embedded
(MCU), allowing for 1 MIPS at 300uA and 2.4 V,
and multiplying in one clock cycle.
The XE8805A includes a high resolution
acquisition path with the 16+10 bits ZoomingADC
and two buffered DACs.
The XE8805A is available with on chip ROM (the
SX8805) or Multiple-Time-Programmable (MTP)
program memory.
Applications
• Portable, battery operated instruments
• Current loop powered instruments
• Wheatstone bridge interfaces
• Pressure and chemical sensors
• HVAC control
• Metering
• Sports watches, wrist instruments
Key product Features
• Low-power, high resolution ZoomingADC
• 0.5 to 1000 gain with offset cancellation
• up to 16 bits analog to digital converter
• up to 13 inputs multiplexer
• Low-voltage low-power controller operation
• 2 MIPS with 2.4 V to 5.5 V operation
• 300 µA at 1 MIPS over voltage range
• 22 kByte (8 kInstruction) MTP
• 520 Byte RAM data memory
• RC and crystal oscillators
• 5 reset, 22 interrupt, 8 event sources
• 8 bit and 16 bit buffered DACs
• 100 years MTP Flash retention at 55°C
Ordering Information
Product
Temperature range Memory type
XE8805MI028*
-40°C to 85 °C
MTP
XE8805AMI000
-40°C to 85 °C
MTP
XE8805AMI028LF -40°C to 85 °C
MTP
SX8805Rxxx
-40°C to 85 °C**
ROM
*Not for new designs
**Extended temperature range on request
Package
LQFP64
die
LQFP64
Rev 1 January 2006
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