MCP3550-50-E/SN Microchip Technology, MCP3550-50-E/SN Datasheet - Page 2

• Manufacturer Part Number: MCP3550-50-E/SN
• Description: IC, ADC, 22BIT, 12.5SPS, SOIC-8
• Manufacturer: Microchip Technology

Specifications of MCP3550-50-E/SN

• Resolution (bits): 22bit
• Sampling Rate: 12.5SPS
• Input Channel Type: Differential
• Data Interface: 3-Wire, Serial
• Supply Voltage Range - Analog: 2.7V To 5.5V
• Supply Current: 120µA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MCP3550/1/3
1.0
1.1
V
All inputs and outputs w.r.t V
Difference Input Voltage ....................................... |V
Output Short Circuit Current ................................. Continuous
Current at Input Pins ....................................................±2 mA
Current at Output and Supply Pins ............................±10 mA
Storage Temperature.....................................-65°C to +150°C
Ambient temp. with power applied ................-55°C to +125°C
ESD protection on all pins (HBM, MM)
Maximum Junction Temperature (T
DC CHARACTERISTICS
DS21950C-page 2
Electrical Specifications: Unless otherwise indicated, all parameters apply at -40°C
V
applies to entire MCP3550/1/3 family.
Noise Performance (MCP3550/1)
No Missing Codes
Output Noise
Effective Resolution
Noise Performance (MCP3553)
No Missing Codes
Output Noise
Effective Resolution
Conversion Times
MCP3550-50
MCP3550-60
MCP3551
MCP3553
Accuracy
Integral Non-Linearity
Offset Error
Positive Full-Scale Error
Negative Full-Scale Error
Offset Drift
Positive/Negative Full-Scale Error
Drift
Note 1:
DD
REF
...................................................................................7.0V
= 2.5V. V
2:
3:
4:
5:
6:
ELECTRICAL
CHARACTERISTICS
Maximum Ratings*
Parameters
This parameter is established by characterization and not 100% tested.
INL is the difference between the endpoints line and the measured code at the center of the quantization band.
This current is due to the leakage current and the current due to the offset voltage between V
Input impedance is inversely proportional to clock frequency; typical values are for the MCP3550/1 device. V
Characterized by design, but not tested.
Rejection performance depends on internal oscillator accuracy; see Section 4.0 “Device Overview” for more informa-
tion on oscillator and digital filter design. MCP3550/1 device rejection specifications characterized from 49 to 61 Hz.
IN
+ = V
IN
- = V
SS
CM
.............. -0.3V to V
= V
J
) . .........................+150°C
REF
/2. All ppm units use 2*V
t
t
t
t
V
V
NMC
NMC
Sym
CONV
CONV
CONV
CONV
V
INL
ER
ER
e
e
FS,P
FS,N
OS
N
N
6 kV,
DD
DD
-1.0%
-1.0%
-1.0%
-1.0%
+ 0.3V
Min
-12
-10
-10
22
20
- V
—
—
—
—
—
—
—
—
—
400V
SS
|
66.67
72.73
16.67
0.040
0.028
21.9
20.6
Typ
REF
2.5
80
±2
±3
±4
±6
±2
±2
—
—
6
as full-scale range. Unless otherwise noted, specification
† Notice: Stresses above those listed under "Maximum
Ratings" may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operation listings of this specification is not implied. Exposure
to maximum rating conditions for extended periods may affect
device reliability.
+1.0%
+1.0%
+1.0%
+1.0%
Max
+12
+10
+10
—
—
—
—
—
—
—
—
—
—
6
bits RMS
bits RMS
ppm/°C
ppm/°C
µV
µV
Units
ppm
ppm
ppm
bits
bits
ms
ms
ms
ms
µV
µV
µV
T
RMS
RMS
A
+85°C, V
At DC (Note 5)
V
At DC (Note 5)
V
T
T
T
T
T
T
A
A
A
A
A
A
© 2005 Microchip Technology Inc.
REF
REF
= +25°C only (Note 2)
= +25°C
= +85°C
= +125°C
= +25°C only
= +25°C only
DD
= 5V
= 5V
= 2.7V or 5.0V.
IN
+ and V
Conditions
IN
-.
REF
= 5V.