MCP3551-E/SN Microchip Technology, MCP3551-E/SN Datasheet
MCP3551-E/SN
Specifications of MCP3551-E/SN
Available stocks
Related parts for MCP3551-E/SN
MCP3551-E/SN 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
... Output Noise e Effective Resolution ER Noise Performance (MCP3553) No Missing Codes NMC Output Noise e Effective Resolution ER Conversion Times MCP3550-50 t CONV MCP3550-60 t CONV MCP3551 t CONV MCP3553 t CONV Accuracy Integral Non-Linearity INL Offset Error V Positive Full Scale Error V FS,P Negative Full Scale Error V FS,N Offset Drift ...
Page 4
... Shutdown Mode Leakage Current Reference Input Voltage Range Reference Input Sampling Capacitor Reference Input Impedance Shutdown Mode Reference Leakage Current Power Requirements Power Supply Voltage Range V MCP3550-50, MCP3551 Supply I DD Current MCP3550-60, MCP3553 Supply I DD Current Supply Current, Sleep Mode I DDSL ...
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
... Ratio and L is the order of the filter. The MCP3550-50 device has the main filter notch located at 50 Hz. For the MCP3550-60 device, the notch is located at 60 Hz. The MCP3551 device has its notch located at 55 Hz, and for the MCP3553 device, the main notch is located at 240 Hz, with an OSR of 128 ...
Page 17
... This high accuracy, combined with wide notches, will ensure that the MCP3551 will have simultaneous 50 Hz and 60 Hz line frequency rejection and the MCP3550-50 or MCP3550-60 devices will ...
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 ...
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
... 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 Example (MCP3550): 3550-50E SN^^ 0951 e 3 256 Example (MCP3551): MCP3551E SN^^ 0951 e 3 256 ) e 3 DS21950E-page 27 ...
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
... Numerous changes made throughout docu- ment. Too numerous to itemize Characteristics Table, Conversion Times: Changed all minimums from -1.0% to -2.0%. Changed typical for MCP3551 from 72.73 to 73.1. Changed all maximums from +1.0% to +2.0%. 3. Packaging Outline drawings updated.. Revision D (January 2007) The following is the list of modifications: • ...
Page 32
... MCP3550/1/3 NOTES: DS21950E-page 32 © 2009 Microchip Technology Inc. ...
Page 33
... Microchip Technology Inc. /XX Examples: a) MCP3550-50E/MS: Extended Temp., Package b) MCP3550T-50E/MS: Tape and Reel, c) MCP3550-60E/SN: d) MCP3550T-60E/SN: Tape and Reel, a) MCP3551-E/MS: b) MCP3551T-E/MS: a) MCP3553-E/SN: b) MCP3553T-E/SN: MCP3550/1/3 . 8LD MSOP. Extended Temp., 8LD MSOP. Extended Temp., 8LD SOIC. Extended Temp., 8LD SOIC. Extended Temp., 8LD MSOP. ...
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 ...