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
© 2009 Microchip Technology Inc. DS21950E-page 9
MCP3550/1/3
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 are ratioed against 2*V
REF .
Unless otherwise noted, graphs apply to entire MCP3550/1/3 family.
FIGURE 2-13: Full Scale Error vs. V
DD
.
FIGURE 2-14: Full Scale Error vs.
Temperature.
FIGURE 2-15: Full Scale Error vs.
Temperature (V
REF
= 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 (V
DD
= 2.7V).
-5
-4
-3
-2
-1
0
1
2
3
4
5
2.533.544.555.5
V
DD
(V)
Full Scale Error (ppm)
Positive Full Scale
Negative Full Scale
-10
-8
-6
-4
-2
0
2
4
6
8
10
-50 -25 0 25 50 75 100 125
Temperature (°C)
Full Scale Error (ppm)
Positive Full Scale
Negative Full Scale
-10
-8
-6
-4
-2
0
2
4
6
8
10
-50-250 255075100125
Temperature (°C)
Full Scale Error (ppm)
Positive Full Scale
Negative Full Scale
0
500
1000
1500
2000
2500
3000
3500
4000
-15 -10 -5 0 5 10 15
Output Code (LSB)
Number of Occurrences
V
DD
= 5V
V
REF
= 2.5V
V
CM
= 1.25V
V
IN
= 0V
T
A
= 25C
16384
consecutiv
e readings
0
200
400
600
800
1000
1200
1400
1600
1800
-15 -10 -5 0 5 10 15
Output Code (LSB)
Number of Occurrences
V
DD
= 5V
V
REF
= 2.5V
V
CM
= 1.25V
V
IN
= 0V
T
A
= 25°C
16384
consecutive
readin
g
s
-5.0
-4.0
-3.0
-2.0
-1.0
0.0
1.0
2.0
3.0
4.0
5.0
-2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5
V
IN
(V)
TUE (ppm)