MCP3201T-I/MS MICROCHIP [Microchip Technology], MCP3201T-I/MS Datasheet

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MCP3201T-I/MS

Manufacturer Part Number
MCP3201T-I/MS
Description
2.7V 12-Bit A/D Converter with SPI Serial Interface
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
Features
• 12-bit resolution
• ±1 LSB max DNL
• ±1 LSB max INL (MCP3201-B)
• ±2 LSB max INL (MCP3201-C)
• On-chip sample and hold
• SPI
• Single supply operation: 2.7V - 5.5V
• 100ksps max. sampling rate at V
• 50ksps max. sampling rate at V
• Low power CMOS technology
• 500 nA typical standby current, 2 µA max.
• 400 µA max. active current at 5V
• Industrial temp range: -40°C to +85°C
• 8-pin MSOP, PDIP, SOIC and TSSOP packages
Applications
• Sensor Interface
• Process Control
• Data Acquisition
• Battery Operated Systems
Description
The Microchip Technology Inc. MCP3201 is a succes-
sive approximation 12-bit Analog-to-Digital (A/D) Con-
verter with on-board sample and hold circuitry. The
device provides a single pseudo-differential input. Dif-
ferential Nonlinearity (DNL) is specified at ±1 LSB, and
Integral Nonlinearity (INL) is offered in ±1 LSB
(MCP3201-B) and ±2 LSB (MCP3201-C) versions.
Communication with the device is done using a simple
serial interface compatible with the SPI protocol. The
device is capable of sample rates of up to 100 ksps at
a clock rate of 1.6 MHz. The MCP3201 operates over
a broad voltage range (2.7V - 5.5V). Low current
design permits operation with typical standby and
active currents of only 500 nA and 300 µA, respec-
tively. The device is offered in 8-pin MSOP, PDIP,
TSSOP and 150 mil SOIC packages.
© 2007 Microchip Technology Inc.
2.7V 12-Bit A/D Converter with SPI
serial interface (modes 0,0 and 1,1)
DD
DD
= 2.7V
= 5V
Package Types
Functional Block Diagram
IN+
IN-
MSOP, PDIP, SOIC, TSSOP
V
Sample
IN+
IN–
V
Hold
and
REF
SS
MCP3201
1
2
3
4
Serial Interface
CS/SHDN
Control Logic
DAC
V
REF
Comparator
CLK
8
7
6
5
V
CLK
D
CS/SHDN
12-Bit SAR
DD
OUT
DS21290D-page 1
Register
V
D
Shift
DD
OUT
V
SS

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MCP3201T-I/MS Summary of contents

Page 1

A/D Converter with SPI Features • 12-bit resolution • ±1 LSB max DNL • ±1 LSB max INL (MCP3201-B) • ±2 LSB max INL (MCP3201-C) • On-chip sample and hold ™ • SPI serial interface (modes 0,0 and ...

Page 2

MCP3201 1.0 ELECTRICAL CHARACTERISTICS 1.1 Maximum Ratings* V .........................................................................7.0V DD All inputs and outputs w.r.t. V ...... -0. Storage temperature ..........................-65°C to +150°C Ambient temp. with power applied .....-65°C to +125°C ESD protection on all pins (HBM)....................... ...

Page 3

ELECTRICAL CHARACTERISTICS (CONTINUED) All parameters apply 5V 0V unless otherwise noted. Parameter Sample Capacitor C Digital Input/Output: Data Coding Format High Level Input Voltage Low Level Input Voltage High Level Output Voltage ...

Page 4

MCP3201 CS t SUCS CLK HI-Z D OUT FIGURE 1-1: Serial Timing. Load circuit for 1.4V 3 kΩ Test Point D OUT Voltage Waveforms for t R ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS Note: The graphs provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In ...

Page 6

MCP3201 Note: Unless otherwise indicated 1.0 0.8 Positive INL 0.6 0.4 0.2 0.0 -0.2 Negative INL -0.4 -0.6 -0.8 -1.0 -50 - Temperature (°C) FIGURE 2-7: Integral Nonlinearity Temperature. 1.0 0.8 0.6 0.4 Positive DNL ...

Page 7

Note: Unless otherwise indicated 1.0 0.8 0.6 0.4 0.2 0.0 -0.2 -0.4 -0.6 -0.8 -1.0 0 512 1024 1536 2048 2560 3072 3584 4096 Digital Code FIGURE 2-13: Differential Nonlinearity (DNL) vs. Code (Representative Part). 1.0 0.8 0.6 ...

Page 8

MCP3201 Note: Unless otherwise indicated 1.0 0.8 0 2.7V DD REF ksps 0.4 SAMPLE 0.2 0.0 -0.2 -0.4 -0 -0.8 F SAMPLE -1.0 -50 - Temperature ...

Page 9

Note: Unless otherwise indicated 12.00 11.75 11.50 11.25 11.00 V 10.75 F 10. 2.7V DD REF 10. ksps SAMPLE 10.00 9.75 9.50 9.25 9.00 0.0 0.5 1.0 1.5 2.0 2.5 3.0 ...

Page 10

MCP3201 Note: Unless otherwise indicated 500 REF DD 450 All points 1.6 MHz, except CLK 400 2.5V 800 kHz REF DD CLK 350 300 250 ...

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Note: Unless otherwise indicated REF 2.0 2.5 3.0 3.5 4.0 4.5 V (V) DD FIGURE 2-37 DDS DD 100.00 ...

Page 12

MCP3201 3.0 PIN DESCRIPTIONS 3.1 IN+ Positive analog input. This input can vary from IN IN-. REF 3.2 IN- Negative analog input. This input can vary ±100 mV from 3.3 Chip Select/Shutdown (CS/SHDN) The ...

Page 13

V CHx PIN EGEND VA = Signal Source R = Source Impedance Input Channel Pad Input Pin Capacitance PIN V = Threshold Voltage Leakage ...

Page 14

MCP3201 5.0 SERIAL COMMUNICATIONS Communication with the device is done using a stan- dard SPI-compatible serial interface. Initiating commu- nication with the MCP3201 begins with the CS going low. If the device was powered up with the CS pin low, ...

Page 15

APPLICATIONS INFORMATION 6.1 Using the MCP3201 with Microcontroller SPI Ports With most microcontroller SPI ports required to clock out eight bits at a time. If this is the case, it will be necessary to provide more clocks ...

Page 16

MCP3201 6.2 Maintaining Minimum Clock Speed When the MCP3201 initiates the sample period, charge is stored on the sample capacitor. When the sample period is complete, the device converts one bit for each clock that is received important ...

Page 17

PACKAGING INFORMATION 7.1 Package Marking Information 8-Lead PDIP (300 mil) XXXXXXXX XXXXXNNN YYWW 8-Lead SOIC (150 mil) XXXXXXXX XXXXYYWW NNN 8-Lead MSOP XXXXXX YWWNNN 8-Lead TSSOP XXXX YYWW NNN Legend: XX...X Customer-specific information Y Year code (last digit of ...

Page 18

MCP3201 8-Lead Plastic Dual In-Line (P) – 300 mil Body [PDIP] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging N NOTE Number of Pins Pitch Top ...

Page 19

Plastic Small Outline (SN) – Narrow, 3.90 mm Body [SOIC] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging N NOTE Number of Pins Pitch Overall Height ...

Page 20

MCP3201 8-Lead Plastic Micro Small Outline Package (MS) [MSOP] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging D N NOTE Number of Pins Pitch Overall ...

Page 21

Plastic Thin Shrink Small Outline (ST) – 4.4 mm Body [TSSOP] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging D N NOTE Number of Pins ...

Page 22

MCP3201 NOTES: DS21290D-page 22 © 2007 Microchip Technology Inc. ...

Page 23

APPENDIX A: REVISION HISTORY Revision D (January 2007) This revision includes updates to the packaging diagrams. © 2007 Microchip Technology Inc. MCP3201 DS21290D-page 23 ...

Page 24

MCP3201 NOTES: DS21290D-page 24 © 2007 Microchip Technology Inc. ...

Page 25

... PART NO. X /XX Device Temperature Package Range Device: MCP3201: 12-Bit A/D Converter w/SPI Interface MCP3201T: 12-Bit A/D Converter w/SPI Interface (Tape and Reel) (SOIC and TSSOP only) Temperature Range -40°C to +85°C Package Plastic Micro Small Outline (MSOP), 8-lead P = Plastic DIP (300 mil Body), 8-lead ...

Page 26

MCP3201 NOTES: DS21290D-page 26 © 2007 Microchip Technology Inc. ...

Page 27

Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families ...

Page 28

W ORLDWIDE AMERICAS ASIA/PACIFIC Corporate Office Asia Pacific Office 2355 West Chandler Blvd. Suites 3707-14, 37th Floor Chandler, AZ 85224-6199 Tower 6, The Gateway Tel: 480-792-7200 Habour City, Kowloon Fax: 480-792-7277 Hong Kong Technical Support: Tel: 852-2401-1200 http://support.microchip.com Fax: 852-2401-3431 ...

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