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I2CCON 数据表(PDF) 116 Page - Microchip Technology

部件名 I2CCON
功能描述  High-Performance, 16-bit Digital Signal Controllers
PDF  210 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

I2CCON 数据表(HTML) 116 Page - Microchip Technology

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dsPIC30F2011/2012/3012/3013
DS70139G-page 116
© 2010 Microchip Technology Inc.
16.7
ADC Speeds
The dsPIC30F 12-bit ADC specifications permit a
maximum of 200 ksps sampling rate. Table 16-1
summarizes the conversion speeds for the dsPIC30F
12-bit ADC and the required operating conditions.
Figure 16-2 depicts the recommended circuit for the
conversion rates above 200 ksps. The dsPIC30F2011
is shown as an example.
FIGURE 16-2:
ADC VOLTAGE REFERENCE SCHEMATIC
TABLE 16-1:
12-BIT ADC EXTENDED CONVERSION RATES
dsPIC30F 12-bit ADC Conversion Rates
Speed
TAD
Minimum
Sampling
Time Min
Rs Max
VDD
Temperature
Channel Configuration
Up to 200
ksps(1)
334 ns
1 TAD
2.5 k
Ω
4.5V
to
5.5V
-40°C to +85°C
Up to 100
ksps
668 ns
1 TAD
2.5 k
Ω
3.0V
to
5.5V
-40°C to +125°C
Note 1: External VREF- and VREF+ pins must be used for correct operation. See Figure 16-2 for recommended
circuit.
VREF-VREF+
ADC
ANx
S/H
CHX
VREF-VREF+
ADC
ANx
S/H
CHX
ANx or VREF-
or
AVSS
or
AVDD
VDD
VDD
VDD
C8
1
μF
VDD
C7
0.1
μF
VDD
C6
0.01
μF
AVDD
C5
1
μF
AVDD
C4
0.1
μF
AVDD
C3
0.01
μF
See Note 1:
Note 1: Ensure adequate bypass capacitors are provided on each VDD pin.
1
2
3
4
VSS
6
7
21
20
19
18
VDD
VSS
15
dsPIC30F2011
VDD
R1
10
VDD
R2
10
C2
0.1
μF
C1
0.01
μF



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