MCP3202-BIST Microchip Technology, MCP3202-BIST Datasheet - Page 9

• Manufacturer Part Number: MCP3202-BIST
• Description: 2.7V Dual Channel 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).
DD
1999 Microchip Technology Inc.
.
100
-100
-110
-120
-130
12.0
11.5
11.0
10.5
10.0
90
80
70
60
50
40
30
20
10
-10
-20
-30
-40
-50
-60
-70
-80
-90
9.5
9.0
0
0
1
2.0
0
F
SAMPLE
10000
2.5
= 50ksps
Input Frequency (kHz)
3.0
Frequency (Hz)
F
V
F
20000
SAMPLE
DD
SAMPLE
= 2.7V
V
Free
= 100ksps
= 50ksps
DD
10
3.5
(V)
30000
Dynamic
DD
4.0
V
F
F
4096 points
DD
SAMPLE
INPUT
= 5V, V
= 5V
V
F
40000
DD
SAMPLE
= 9.985kHz
= 100ksps
= 5V
4.5
= 100ksps
SS
Range
50000
= 0V, f
100
5.0
Preliminary
SAMPLE
=
100ksps, f
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
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
CLK
= 18* f
5000
10
SAMPLE
Ripple Frequency (kHz)
Input Frequency (kHz)
Frequency (Hz)
DD
10000
V
F
DD
SAMPLE
,T
= 2.7V).
= 2.7V
A
100
= 25°C
= 50ksps
10
MCP3202
15000
V
F
F
4096 points
DD
SAMPLE
INPUT
DS21034A-page 9
1000
V
F
= 2.7V
DD
SAMPLE
20000
= 998.76Hz
= 5V
= 50ksps
= 100ksps
25000
10000
100