MCP3550-60 Microchip Technology Inc., MCP3550-60 Datasheet
MCP3550-60
Manufacturer Part Number
MCP3550-60
Description
Low-power, Single-channel 22-bit Delta-sigma Adcs
Manufacturer
Microchip Technology Inc.
Datasheet
1.MCP3550-60.pdf
(30 pages)
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCP3550-60E/MS
Manufacturer:
MICROCHIP
Quantity:
12 000
Company:
Part Number:
MCP3550-60E/SN
Manufacturer:
Microchip Technology
Quantity:
1 993
Features
• 22-bit ADC in Small 8-pin MSOP Package with
• Low-Output Noise of 2.5 µV
• 3 µV Typical Offset Error
• 2 ppm Typical Full-Scale Error
• 6 ppm Maximum INL Error
• Total Unadjusted Error Less Than 10 ppm
• No Digital Filter Settling Time, Single-Command
• Ultra-Low Conversion Current (MCP3550/1):
• Differential Input with V
• 2.7V to 5.5V Single-Supply Operation
• Extended Temperature Range:
Applications
• Weigh Scales
• Direct Temperature Measurement
• 6-digit DVMs
• Instrumentation
• Data Acquisition
• Strain Gauge Measurement
Block Diagram
© 2007 Microchip Technology Inc.
V
Automatic Internal Offset and Gain Calibration
Resolution of 21.9 bits (MCP3550/1)
Conversions through 3-wire SPI Interface
- 100 µA typical (V
- 120 µA typical (V
Range
- -40°C to +125°C
V
IN
IN
+
-
Low-Power, Single-Channel 22-Bit Delta-Sigma ADCs
V
REF
3rd-Order
DS ADC
Modulator
w/ Internal
Calibration
Oscillator
Internal
DD
DD
= 2.7V)
= 5.0V)
SS
to V
RMS
DD
V
POR
V
with Effective
SS
DD
Common Mode
V
DD
SCK
SDO
RDY
CS
MCP3550/1/3
Description
The Microchip Technology Inc. MCP3550/1/3 devices
are 2.7V to 5.5V low-power, 22-bit Delta-Sigma Ana-
log-to-Digital Converters (ADCs). The devices offer
output noise as low as 2.5 µV
unadjusted error of 10 ppm. The family exhibits 6 ppm
Integral Non-Linearity (INL) error, 3 µV offset error and
less than 2 ppm full-scale error. The MCP3550/1/3
devices provide high accuracy and low noise
performance
measurements (such as pressure, temperature and
humidity) are performed. With the internal oscillator
and
components
applications.
This product line has fully differential analog inputs,
making it compatible with a wide variety of sensor,
industrial control or process control applications.
The MCP3550/1/3 devices operate from -40°C to
+125°C and are available in the space-saving 8-pin
MSOP and SOIC packages.
Package Types:
Device Selection Table
MCP3550-50
MCP3550-60
MCP3551
MCP3553
Part Number
high
V
V
V
V
REF
IN
IN
SS
oversampling
+
–
13.75 sps
12.5 sps
are
Sample
for
1
2
3
4
15 sps
60 sps
MCP3550/1/3
Rate
SOIC, MSOP
applications
required
Resolution
Effective
21.9 bits
21.9 bits
21.9 bits
20.6 bits
rate,
8
7
6
5 SCK
for
V
CS
SDO/RDY
RMS
minimal
DD
DS21950D-page 1
where
, with a total
(simultaneous)
high-accuracy
Rejection
50/60 Hz
50/60 Hz
50 Hz
60 Hz
N/A
external
sensor
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