Datasheet
Table Of Contents
- 1.0 Electrical Characteristics
- 2.0 Typical Performance Curves
- FIGURE 2-1: INL Error vs. Input Voltage (VDD = 2.7V).
- FIGURE 2-2: INL Error vs. Input Voltage (VDD = 5.0V).
- FIGURE 2-3: INL Error vs. Input Voltage (VDD = 5.0V, VREF = 5V).
- FIGURE 2-4: Maximum INL Error vs. VREF.
- FIGURE 2-5: Maximum INL Error vs. Temperature.
- FIGURE 2-6: Output Noise vs. Input Voltage (VDD = 2.7V).
- FIGURE 2-7: Output Noise vs. Input Voltage (VDD = 5.0V).
- FIGURE 2-8: Output Noise vs. VREF.
- FIGURE 2-9: Output Noise vs.VDD.
- FIGURE 2-10: Output Noise vs. Temperature.
- FIGURE 2-11: Offset Error vs VDD (VCM = 0V).
- FIGURE 2-12: Offset Error vs. Temperature (VREF = 5.0V).
- FIGURE 2-13: Full Scale Error vs. VDD.
- FIGURE 2-14: Full Scale Error vs. Temperature.
- FIGURE 2-15: Full Scale Error vs. Temperature (VREF = 5.0V).
- FIGURE 2-16: MCP3550/1 Output Noise Histogram.
- FIGURE 2-17: MCP3553 Output Noise Histogram.
- FIGURE 2-18: Total Unadjusted Error (TUE) vs. Input Voltage (VDD = 2.7V).
- FIGURE 2-19: Total Unadjusted Error (TUE) vs. Input Voltage.
- FIGURE 2-20: Total Unadjusted Error (TUE) vs. Input Voltage (VREF = 5.0V).
- FIGURE 2-21: Maximum TUE vs. VREF.
- FIGURE 2-22: Maximum TUE vs. Temperature.
- FIGURE 2-23: Maximum TUE vs. VDD.
- FIGURE 2-24: IDDS vs. Temperature.
- FIGURE 2-25: IDD vs. VDD.
- FIGURE 2-26: IDD vs. Temperature.
- 3.0 Pin Descriptions
- 4.0 Device Overview
- FIGURE 4-1: MCP3550/1/3 Functional Block Diagram.
- 4.1 MCP3550/1/3 Delta-Sigma Modulator with Internal Offset and Gain Calibration
- 4.2 Digital Filter
- TABLE 4-1: data rate, output noise and Digital filter specificaTIons by device
- FIGURE 4-2: SINC Filter Response, MCP3550-50 Device.
- FIGURE 4-3: SINC Filter Response, MCP3550-60 Device.
- FIGURE 4-4: SINC Filter Response, MCP3551 Device, Simultaneous 50/60 Hz Rejection.
- FIGURE 4-5: SINC Filter Response at Integer Multiples of the Sampling Frequency (fs).
- 4.3 Internal Oscillator
- 4.4 Differential Analog Inputs
- 4.5 Voltage Reference Input Pin
- 4.6 Power-On Reset (POR)
- 4.7 Shutdown Mode
- 4.8 Sleep Mode
- 5.0 Serial Interface
- 6.0 Packaging Information
MCP3550/1/3
DS21950E-page 8 © 2009 Microchip Technology Inc.
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 MCP3550/1/3 family.
FIGURE 2-7: Output Noise vs. Input
Voltage (V
DD
= 5.0V).
u
FIGURE 2-8: Output Noise vs. V
REF
.
FIGURE 2-9: Output Noise vs.V
DD
.
FIGURE 2-10: Output Noise vs.
Temperature.
FIGURE 2-11: Offset Error vs V
DD
(V
CM
=0V).
FIGURE 2-12: Offset Error vs.
Temperature (V
REF
= 5.0V).
0
5
10
15
-2.5 -1.5 -0.5 0.5 1.5 2.5
V
IN
(V)
Output Noise (µV
RMS
)
MCP3553
MCP3550/1
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
0.0 1.0 2.0 3.0 4.0 5.0
V
REF
(V)
Output Noise (µV
RMS
)
MCP3550/1
MCP3553
0
1
2
3
4
5
6
7
8
9
10
2.5 3 3.5 4 4.5 5 5.5
V
DD
(V)
Output Noise (µV
RMS
)
MCP3550/1
MCP3553
0
1
2
3
4
5
6
7
8
9
10
-50-25 0 255075100125
Temperature (°C)
Output Noise (µV
RMS
)
MCP3550/1
MCP3553
0
1
2
3
4
5
2.5 3 3.5 4 4.5 5 5.5
V
DD
(V)
Offset (µV)
0
1
2
3
4
5
6
7
-50 -25 0 25 50 75 100 125
Temperature (°C)
Offset (µV)