MCP3551 Datasheet, PDF (7/30 Pages) Microchip Technology – Low-Power, Single-Channel 22-Bit Delta-Sigma ADCs

MCP3551/3
Note: Unless otherwise specified, T_A = +25°C, V_DD = 5V, V_REF = 2.5V, V_SS = 0V, V_CM = V_REF/2, V_IN+ = V_IN-.
All ppm units use 2*V_REF as full-scale range. Unless otherwise noted, graphs apply to entire MCP3551/3 family.
15
10
MCP3553
5
MCP3551
0
-2.5
-1.5
-0.5
0.5
1.5
2.5
V_IN (V)
FIGURE 2-7:
Output Noise vs. Input
Voltage (V_DD = 5.0V).
u
10.0
9.0
8.0
7.0
6.0
MCP3553
5.0
4.0
MCP3551
3.0
2.0
1.0
0.0
0.0
1.0
2.0
3.0
4.0
5.0
V_REF (V)
FIGURE 2-8:
Output Noise vs. V_REF.
10
9
8
7
6
5
4
3
2
1
0
-50 -25
MCP3553
MCP3551
0 25 50 75 100 125
Temperature (°C)
FIGURE 2-10:
Temperature.
Output Noise vs.
5
4
3
2
1
0
2.5
3
3.5
4
4.5
5
5.5
V_DD (V)
FIGURE 2-11:
(V_CM = 0V).
Offset Error vs V_DD
10
9
8
7
6
5
4
3
2
1
0
2.5
3
FIGURE 2-9:
MCP3553
MCP3551
3.5
4
4.5
5
5.5
V_DD (V)
Output Noise vs.V_DD.
7
6
5
4
3
2
1
0
-50 -25
0
25 50 75
Temperature (°C)
100 125
FIGURE 2-12:
Offset Error vs.
Temperature (V_REF = 5.0V).
© 2005 Microchip Technology Inc.
DS21950B-page 7