MCP3201-BIST Microchip Technology, MCP3201-BIST Datasheet - Page 9

• Manufacturer Part Number: MCP3201-BIST
• Description: 2.7V 12-Bit A/D Converter with SPI Serial Interface
• Manufacturer: Microchip Technology

Note: Unless otherwise indicated, V
FIGURE 2-25: Effective Number of Bits (ENOB) vs.
V
FIGURE 2-26: Spurious
(SFDR) vs. Input Frequency.
FIGURE 2-27: Frequency Spectrum of 10kHz input
(Representative Part).
REF
1999 Microchip Technology Inc.
.
-100
-110
-120
-130
100
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
10000
1.0
Input Frequency (kHz)
V
F
1.5
DD
SAMPLE
Frequency (Hz)
V
F
20000
= V
DD
SAMPLE
REF
2.0
= V
= 50ksps
= 2.7V
V
REF
Free
= 50ksps
REF
10
2.5
= 2.7V
30000
(V)
3.0
Dynamic
DD
V
F
F
4096 points
DD
SAMPLE
INPUT
V
F
3.5
DD
SAMPLE
= V
V
F
= V
40000
= V
DD
SAMPLE
= 9.985kHz
REF
= V
= 100ksps
4.0
REF
REF
=100ksps
= 5V
REF
= 5V
= 100ksps
= 5V, V
= 5V
4.5
Range
50000
100
5.0
Preliminary
SS
= 0V, f
SAMPLE
FIGURE 2-28: Effective Number of Bits (ENOB) vs.
Input Frequency.
FIGURE 2-29: Power Supply Rejection (PSR) vs.
Ripple Frequency.
FIGURE 2-30: Frequency Spectrum of 1kHz input
(Representative Part, V
= 100ksps, f
12.0
11.5
11.0
10.5
10.0
-100
-110
-120
-130
-10
-20
-30
-40
-50
-60
-70
-80
9.5
9.0
8.5
8.0
-10
-20
-30
-40
-50
-60
-70
-80
-90
0
0
1
1
0
5000
CLK
10
Ripple Frequency (kHz)
= 16*f
Input Frequency (kHz)
Frequency (Hz)
10000
DD
V
F
DD
SAMPLE
= 2.7V).
= 2.7V
SAMPLE
100
= 50ksps
10
MCP3201
15000
,T
A
= 25°C
V
F
F
4096 points
DD
SAMPLE
INPUT
DS21290B-page 9
1000
V
F
DD
SAMPLE
= V
20000
= 998.76Hz
= 5V
REF
= 50ksps
= 100ksps
= 2.7V
10000
25000
100