mcp3208t-ci-sl Microchip Technology Inc., mcp3208t-ci-sl Datasheet - Page 10

• Manufacturer Part Number: mcp3208t-ci-sl
• Description: 2.7v 4-channel/8-channel 12-bit A/d Converters With Spi Serial Interface
• Manufacturer: Microchip Technology Inc.

MCP3204/3208
Note: Unless otherwise indicated, V
FIGURE 2-25:
(ENOB) vs. V
FIGURE 2-26:
Range (SFDR) vs. Input Frequency.
FIGURE 2-27:
10 kHz input (Representative Part).
DS21298D-page 10
100
-100
-110
-120
-130
12.00
11.75
11.50
11.25
11.00
10.75
10.50
10.25
10.00
90
80
70
60
50
40
30
20
10
-10
-20
-30
-40
-50
-60
-70
-80
-90
9.75
9.50
9.25
9.00
0
0
1
0
0.0
0.5
V
F
10000
REF
SAMPLE
DD
1.0
= V
.
V
F
REF
= 50 ksps
Input Frequency (kHz)
SAMPLE
DD
1.5
= 2.7 V
= V
Frequency (Hz)
Effective Number of Bits
Spurious Free Dynamic
Frequency Spectrum of
20000
REF
= 50 ksps
2.0
= 2.7 V
V
REF
10
2.5
(V)
30000
3.0
V
F
SAMPLE
V
F
DD
V
F
F
4096 points
DD
SAMPLE
DD
DD
SAMPLE
INPUT
= V
3.5
= V
= V
REF
40000
= 100 ksps
= 9.985 kHz
= V
REF
REF
=100 ksps
= 100 ksps
4.0
= 5 V
= 5 V
= 5 V
REF
4.5
= 5V, V
50000
100
5.0
SS
= 0V, f
FIGURE 2-28:
(ENOB) vs. Input Frequency.
FIGURE 2-29:
(PSR) vs. Ripple Frequency.
FIGURE 2-30:
1 kHz input (Representative Part, V
SAMPLE
12.0
11.5
11.0
10.5
10.0
-10
-20
-30
-40
-50
-60
-70
-80
-100
-110
-120
-130
9.5
9.0
8.5
8.0
-10
-20
-30
-40
-50
-60
-70
-80
-90
0
0
1
= 100 ksps, f
1
0
5000
V
F
DD
SAMPLE
10
= V
Ripple Frequency (kHz)
Input Frequency (kHz)
CLK
REF
= 50 ksps
Effective Number of Bits
Power Supply Rejection
Frequency Spectrum of
Frequency (Hz)
10000
© 2007 Microchip Technology Inc.
= 2.7 V
= 20* f
100
10
15000
SAMPLE
V
F
SAMPLE
DD
V
F
F
4096 points
DD
SAMPLE
INPUT
= V
1000
= V
REF
,T
= 100 ksps
20000
DD
= 998.76 Hz
REF
= 50 ksps
A
= 5 V
= 25°C.
= 2.7 V
= 2.7V).
10000
25000
100