MCP355XDV-MS1 Microchip Technology, MCP355XDV-MS1 Datasheet

BOARD DEV SENSOR APP MCP355X

MCP355XDV-MS1

Manufacturer Part Number
MCP355XDV-MS1
Description
BOARD DEV SENSOR APP MCP355X
Manufacturer
Microchip Technology
Datasheets

Specifications of MCP355XDV-MS1

Number Of Adc's
1
Number Of Bits
22
Data Interface
Serial
Inputs Per Adc
1 Differential
Input Range
±0.3 V
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 125°C
Utilized Ic / Part
MCP355x
Processor To Be Evaluated
MCP355x
Interface Type
RS-232, USB
Lead Free Status / RoHS Status
Not applicable / Not applicable
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Not applicable / Not applicable

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP355XDV-MS1
Manufacturer:
MICROCHIP
Quantity:
12 000
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
© 2009 Microchip Technology Inc.
V
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
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
POR
V
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
Analog-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:
high
V
V
V
V
REF
IN
IN
SS
oversampling
+
are
for
1
2
3
4
MCP3550/1/3
MSOP, SOIC
applications
required
rate,
8
7
6
5 SCK
for
V
CS
SDO/RDY
RMS
minimal
DD
DS21950E-page 1
where
, with a total
high-accuracy
external
sensor

Related parts for MCP355XDV-MS1

MCP355XDV-MS1 Summary of contents

Page 1

... Oscillator POR © 2009 Microchip Technology Inc. MCP3550/1/3 Description The Microchip Technology Inc. MCP3550/1/3 devices are 2.7V to 5.5V low-power, 22-bit Delta-Sigma Analog-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 ...

Page 2

... MCP3550/1/3 NOTES: DS21950E-page 2 © 2009 Microchip Technology Inc. ...

Page 3

... 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 Hz. © 2009 Microchip Technology Inc. † Notice: Stresses above those listed under "Maximum Ratings" may cause permanent damage to the device. This is ...

Page 4

... MCP3551 only, 0 < V < < < +V REF REF dB MCP3550-50 or MCP3550-60 only respectively, 0 < V < < < +V REF REF Note 5 MΩ (Note Note 5 MΩ Note µ µ 2.7V DD µ µ 2.7V DD µA µ SCK = mA 5. and 5V. REF © 2009 Microchip Technology Inc. ...

Page 5

... CSL RDY flag setup time rise to output disable t DIS CS disable time t CSD Power- LOW t PUCSL CS High to Shutdown Mode t CSHSD © 2009 Microchip Technology Inc. as full scale range. Unless otherwise noted, specification REF Min Typ Max — — 0 — — 5 — INT ...

Page 6

... MCP3550/1/3 t RDY t CSD t CS CSL SDO /RDY SCK SU FIGURE 1-1: Serial Timing FIGURE 1-2: Power-up Timing. DS21950E-page 6 f SCK PUCSL t CSHSD t DIS © 2009 Microchip Technology Inc. ...

Page 7

... V (V) IN FIGURE 2-2: INL Error vs. Input Voltage (V = 5.0V +125 (V) IN FIGURE 2-3: INL Error vs. Input Voltage (V = 5.0V 5V). DD REF © 2009 Microchip Technology Inc 2.5V 0V REF 1.5 2.5 0 0.5 FIGURE 2- REF 1.5 2.5 -50 -25 FIGURE 2-5: Temperature ...

Page 8

... FIGURE 2-11: REF ( -50 -25 5 5.5 . FIGURE 2-12: DD Temperature ( / REF IN IN MCP3553 MCP3550 100 125 Temperature (°C) Output Noise vs. 3.5 4 4.5 5 5.5 V (V) DD Offset Error 100 125 Temperature (°C) Offset Error vs. = 5.0V). REF © 2009 Microchip Technology Inc. ...

Page 9

... Temperature Positive Full Scale Negative Full Scale - -10 -50 - Temperature (°C) FIGURE 2-15: Full Scale Error vs. Temperature (V = 5.0V). REF © 2009 Microchip Technology Inc 2.5V 0V REF SS Unless otherwise noted, graphs apply to entire MCP3550/1/3 family. 4000 3500 V = 2.5V REF V = 1.25V 3000 25C 2500 ...

Page 10

... FIGURE 2-23: 0.6 0.5 0.4 0.3 0.2 0.1 0 -0.1 -50 - FIGURE 2-24: . REF = V / REF 100 125 Temperature (°C) Maximum TUE vs. 2 5.5 V (V) DD Maximum TUE vs MCP3550/1 MCP3553 100 125 Temperature (°C) I vs. Temperature. DDS © 2009 Microchip Technology Inc. ...

Page 11

... Unless otherwise noted, graphs apply to entire MCP3550/1/3 family. REF 200 180 160 MCP3550-60, MCP3553 140 120 MCP3550-50, MCP3550/1 100 2.5 3 3.5 4 4.5 V (V) DD FIGURE 2-25 © 2009 Microchip Technology Inc 2.5V 0V REF SS 160 MCP3550-60, MCP3553 140 120 100 5.5 -50 -25 FIGURE 2-26: MCP3550/1 / REF ...

Page 12

... MCP3550/1/3 NOTES: DS21950E-page 12 © 2009 Microchip Technology Inc. ...

Page 13

... Section 1.0 Characteristics”. © 2009 Microchip Technology Inc. Table 3-1. I/O/P I Reference Voltage Analog Input Pin I Non-inverting Analog Input Pin ...

Page 14

... Conversion mode. Leaving CS low will place the device in Continuous Conversion mode (i.e., additional internal conversions will automatically occur). CS may be tied permanently low for two-wire Continuous Conversion mode operation. SDO/RDY enters a high- impedance state with CS high. DS21950E-page 14 © 2009 Microchip Technology Inc. ...

Page 15

... Transfer Offset Calibration FIGURE 4-1: MCP3550/1/3 Functional Block Diagram. © 2009 Microchip Technology Inc. The MCP3550/1/3 devices communicate with a simple 3-wire SPI interface. The interface controls the conversion start event, with an added feature of an auto-conversion at system power-up by tying the CS pin to logic-low. The device can communicate with bus speeds MHz, with 50 pF capacitive loading ...

Page 16

... S S for rejection performance). Figure 4-2). Internal Clock 50/60 Hz Rejection f OSC 102.4 kHz -120 dB min 122.88 kHz -120 dB min 112.64 kHz -82 dB min. from Hz and - 122.88 kHz Not Applicable periods before OSC © 2009 Microchip Technology Inc. ...

Page 17

... Frequency (Hz) FIGURE 4-4: SINC Filter Response, MCP3551 Device, Simultaneous 50/60 Hz Rejection. © 2009 Microchip Technology Inc. 0 -20 -40 -60 -80 -100 -120 150 200 -140 0 28160 FIGURE 4-5: Integer Multiples of the Sampling Frequency (f 4.3 Internal Oscillator ...

Page 18

... REF pin. The value of the reference and the common mode of the )/2. REF SS The converter DD. input pin. However, a REF 2 (see Figure 2-4). REF input pin inversely REF pin. REF pin, providing additional DD © 2009 Microchip Technology Inc. ...

Page 19

... This allows all internal analog circuitry to settle to their proper operating point. This timing is typically less than 300 µs, which is negligible compared to one conversion time (72.7 ms for MCP3551). © 2009 Microchip Technology Inc. MCP3550/1/3 4.8 Sleep Mode During Sleep mode, the device is not converting and is awaiting data retrieval ...

Page 20

... MCP3550/1/3 NOTES: DS21950E-page 20 © 2009 Microchip Technology Inc. ...

Page 21

... FIGURE 5-1: Typical Serial Device Communication and Example Digital Output Codes for Specific Analog Input Voltages. © 2009 Microchip Technology Inc. Bit 21 to bit 0 represents the output code in 22-bit binary two's complement. Bit 21 is the sign bit and is logic ‘0’ when the differential analog input is positive and logic ‘ ...

Page 22

... The most recent conversion data will always be available in the Output register. When the device exits Shutdown, there is an internal power-up delay that must be observed. Sleep x24 Hi CONV CONV Shutdown Hi-Z Shutdown x24 Hi-Z © 2009 Microchip Technology Inc. ...

Page 23

... CS Int. Osc t CONV Hi-Z SDO/RDY FIGURE 5-4: RDY Functionality in Single Conversion Mode. © 2009 Microchip Technology Inc. MCP3550/1/3 5.4 Continuous Conversion Mode , If no rising edge of CS occurs during any given CONV conversion per Figure will take place and the contents of the previous conver- sion will be overwritten ...

Page 24

... Continuous Conversion mode, with internal conversions continuously occurring. This mode can be entered by having CS low during power-up or changing low position after power-up low at power- up, the first conversion of the converter is initiated approximately 300 µs after the power supply has stabilized. © 2009 Microchip Technology Inc. ...

Page 25

... FIGURE 5-7: SPI Communication – Mode 0,0. © 2009 Microchip Technology Inc. In SPI mode 1,1, data is read using only 24 clocks or three byte transfers. The data ready bit must be read by testing the SDO/RDY line prior to a falling edge of the clock ...

Page 26

... MCP3550/1/3 NOTES: DS21950E-page 26 © 2009 Microchip Technology Inc. ...

Page 27

... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. © 2009 Microchip Technology Inc. MCP3550/1/3 Example: 3553E 951256 ...

Page 28

... MCP3550/1/3 /HDG 3ODVWLF 0LFUR 6PDOO 2XWOLQH 3DFNDJH 06 >0623@ 1RWH 1RWHV DS21950E-page 28 I © 2009 Microchip Technology Inc. φ ...

Page 29

... Microchip Technology Inc. MCP3550/1/3 PP %RG\ >62,&@ α φ β DS21950E-page 29 ...

Page 30

... MCP3550/1/3 /HDG 3ODVWLF 6PDOO 2XWOLQH 61 ± 1DUURZ 1RWH DS21950E-page 30 PP %RG\ >62,&@ © 2009 Microchip Technology Inc. ...

Page 31

... The following is the list of modifications: • Added MCP3550-50, MCP3550-60 references throughout this document. Revision B (October 2005) The following is the list of modifications: • Changed LSb refefences to LSB. Revision A (September 2005) • Original Release of this Document. © 2009 Microchip Technology Inc. MCP3550/1/3 DS21950E-page 31 ...

Page 32

... MCP3550/1/3 NOTES: DS21950E-page 32 © 2009 Microchip Technology Inc. ...

Page 33

... Single Channel 22-Bit Delta-Sigma ADC MCP3553T: Single Channel 22-Bit Delta-Sigma ADC (Tape and Reel) Temperature Range -40°C to +125°C Package Plastic MSOP, 8-lead SN = Plastic SOIC (150 mil Body), 8-lead © 2009 Microchip Technology Inc. /XX Examples: a) MCP3550-50E/MS: Extended Temp., Package b) MCP3550T-50E/MS: Tape and Reel, c) ...

Page 34

... MCP3550/1/3 NOTES: DS21950E-page 34 © 2009 Microchip Technology Inc. ...

Page 35

... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 36

... Fax: 886-3-6578-370 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2009 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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