XE8805AMI028LF Semtech, XE8805AMI028LF Datasheet - Page 116
XE8805AMI028LF
Manufacturer Part Number
XE8805AMI028LF
Description
IC DAS 16BIT FLASH 8K MTP 64LQFP
Manufacturer
Semtech
Datasheet
1.XE8805AMI028LF.pdf
(156 pages)
Specifications of XE8805AMI028LF
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
64-LQFP
Supply Voltage Range
2.4V To 5.5V
Operating Temperature Range
-40°C To +85°C
Digital Ic Case Style
LQFP
No. Of Pins
64
For Use With
XE8000MP - PROG BOARD AND PROSTART2 CARD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
XE8805AMI028LF
Manufacturer:
SEMTECH/美国升特
Quantity:
20 000
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16.8.7
Figure 16-25 shows power supply rejection ratio (PSRR) at 3V and 5V supply voltage, and for various PGA gains.
PSRR is defined as the ratio (in dB) of voltage supply change (in V) to the change in the converter output (in V).
PSRR depends on both PGA gain and supply voltage V
© Semtech 2006
-10
-15
-20
15
10
-5
5
0
Figure 16-24. (a) Absolute and (b) relative change in quiescent curent consumption vs. RC oscillator
0
Table 16-28. Typical quiescent current distributions in acquisition chain (n = 16 bits, f
Power Supply Rejection Ratio
500
1000
Frequency - f
V
V
Supply
DD
DD
1500
= 5V
= 3V
2000
RC
[kHz]
(a)
2500
ADC
250
190
Figure 16-25. Power supply rejection ratio (PSRR)
3000
105
100
95
90
85
80
75
70
65
60
frequency (all PGAs active, V
PGA1
3500
165
150
VDD=3V
VDD=5V
1
PGA2
5
130
120
850
800
750
700
650
600
550
500
PGA Gain [V/V]
16-30
DD
0
.
10
PGA3
175
160
500
20
1000
Frequency - f
TOTAL
720
620
1500
DD
100
= 5V)
2000
RC
Unit
[kHz]
µA
µA
(b)
2500
3000
XE8805/05A
3500
www.semtech.com
S
= 500kHz)
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