XE8801AMI027LF Semtech, XE8801AMI027LF Datasheet - Page 87
XE8801AMI027LF
Manufacturer Part Number
XE8801AMI027LF
Description
IC DAS 16BIT FLASH 8K MTP 44LQFP
Manufacturer
Semtech
Datasheet
1.XE8801AMI027LF.pdf
(135 pages)
Specifications of XE8801AMI027LF
Applications
Sensing Machine
Core Processor
RISC
Program Memory Type
FLASH (22 kB)
Controller Series
XE8000
Ram Size
512 x 8
Interface
UART, USRT
Number Of I /o
24
Voltage - Supply
2.4 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
44-LQFP
For Use With
XE8000MP - PROG BOARD AND PROSTART2 CARD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Part Number
Manufacturer
Quantity
Price
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16.1 ZoomingADC™ Features
The ZoomingADC™ is a complete and versatile low-power analog front-end interface typically intended for sensing
applications. The key features of the ZoomingADC™ are:
Programmable 6 to 16-bit dynamic range oversampled ADC
•
•
•
•
•
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16.2 Overview
The total acquisition chain consists of an input multiplexer, 3 programmable gain amplifier stages and an
oversampled A/D converter. The reference voltage can be selected on two different channels. Two offset
compensation amplifiers allow for a wide offset compensation range. The programmable gain and offset allow one to
zoom in on a small portion of the reference voltage defined input range.
© Semtech 2005
Flexible gain programming between 0.5 and 1000
Flexible and large range offset compensation
4-channel differential or 8-channel single-ended input multiplexer
2-channel differential reference inputs
Power saving modes
Direct interfacing to CoolRisc™ microcontroller
Reference
Analog
Inputs
Inputs
0
1
2
3
4
5
6
7
0
1
2
3
Reference
Figure 16-1. ZoomingADC™ general functional block diagram
Selection
Selection
Input
V
IN
f
V
S
Gain1 Gain2
REF
PGA1
GD1
V
D1
Offset2
OFF2
PGA2
GD2
16-2
ZOOM
Gain3
V
D2
Offset3
OFF3
PGA3
GD3
XE8801A – SX8801R
V
IN,ADC
ADC
f
S
16
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