MCP3202-CI/MS Microchip Technology, MCP3202-CI/MS Datasheet

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MCP3202-CI/MS

Manufacturer Part Number
MCP3202-CI/MS
Description
IC,Data Acquisition System,2-CHANNEL,12-BIT,TSSOP,8PIN,PLASTIC
Manufacturer
Microchip Technology
Datasheet

Specifications of MCP3202-CI/MS

Number Of Bits
12
Sampling Rate (per Second)
100k
Data Interface
Serial, SPI™
Number Of Converters
1
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
• 12-Bit resolution
• ±1 LSB maximum DNL
• ±1 LSB maximum INL (MCP3202-B)
• ±2 LSB maximum INL (MCP3202-C)
• Analog inputs programmable as single-ended or
• On-chip sample and hold
• SPI serial interface (modes 0,0 and 1,1)
• Single supply operation: 2.7V-5.5V
• 100 ksps maximum sampling rate at V
• 50 ksps maximum sampling rate at V
• Low power CMOS technology
• 500 nA typical standby current, 5 µA maximum
• 550 µA maximum 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
Functional Block Diagram
© 2008 Microchip Technology Inc.
CH0
CH1
pseudo-differential pairs
Channel
Input
Mux
Sample
Hold
and
CS/SHDN
2.7V Dual Channel 12-Bit A/D Converter
Control Logic
DAC
Comparator
D
IN
CLK
with SPI Serial Interface
12-Bit SAR
DD
DD
Register
V
D
= 2.7V
Shift
DD
OUT
= 5V
V
SS
Description
The Microchip Technology Inc. MCP3202 is a
successive approximation 12-bit Analog-to-Digital
(A/D) Converter with on-board sample and hold
circuitry. The MCP3202 is programmable to provide a
single pseudo-differential input pair or dual single-
ended inputs. Differential Nonlinearity (DNL) is
specified at ±1 LSB, and Integral Nonlinearity (INL) is
offered
(MCP3202-C) versions. Communication with the
device is done using a simple serial interface
compatible with the SPI protocol. The device is capable
of conversion rates of up to 100 ksps at 5V and 50 ksps
at 2.7V. The MCP3202 device 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 375 µA, respectively. The
MCP3202 is offered in 8-pin MSOP, PDIP, TSSOP and
150 mil SOIC packages.
Package Types
PDIP, MSOP, SOIC, TSSOP
CS/SHDN
in
CH0
CH1
V
±1 LSB
MCP3202
SS
1
2
3
4
(MCP3202-B)
8
7
6
5
V
CLK
D
D
DD
OUT
IN
DS21034E-page 1
/V
and
REF
±2 LSB

Related parts for MCP3202-CI/MS

MCP3202-CI/MS Summary of contents

Page 1

... The MCP3202 device 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 375 µA, respectively. The MCP3202 is offered in 8-pin MSOP, PDIP, TSSOP and 150 mil SOIC packages. Package Types PDIP, MSOP, SOIC, TSSOP ...

Page 2

... MCP3202 NOTES: DS21034E-page 2 © 2008 Microchip Technology Inc. ...

Page 3

... Conditions clock cycles clock cycles ksps REF ksps 2.7V DD REF bits LSB MCP3202-B LSB MCP3202-C LSB No missing codes over temperature LSB LSB 0.1V to 4.9V@1 kHz 0.1V to 4.9V@1 kHz 0.1V to 4.9V@1 kHz IN V See Sections 3.1 and 4.1 mV See Sections 3.1 and 4.1 μ ...

Page 4

... MCP3202 ELECTRICAL CHARACTERISTICS (CONTINUED) Electrical Characteristics: Unless otherwise noted, all parameters apply -40°C to +85° 100 ksps and f A SAMPLE Parameter Sym High Level Output Voltage V Low Level Output Voltage Input Leakage Current Output Leakage Current Pin Capacitance C IN (All Inputs/Outputs) ...

Page 5

... OUT Waveform 2† * Waveform 1 is for an output with internal conditions such that the output is high, unless disabled by the output control. † Waveform 2 is for an output with internal conditions such that the output is low, unless disabled by the output control. MCP3202 t CSH DIS ...

Page 6

... MCP3202 NOTES: DS21034E-page 6 © 2008 Microchip Technology Inc. ...

Page 7

... DD 1 0.6 SAMPLE 0.4 0.2 0.0 -0.2 -0.4 -0.6 -0.8 -1.0 3584 4096 0 FIGURE 2-6: vs. Code (Representative Part, V MCP3202 = 18 +25°C. SAMPLE A = 2.7V Positive INL Negative INL 100 Sample Rate (ksps) Integral Nonlinearity (INL) = 2.7V ksps SAMPLE Positive INL Negative INL 3 ...

Page 8

... MCP3202 Note: Unless otherwise indicated 1.0 0.8 Positive INL 0.6 0.4 0.2 0.0 Negative INL -0.2 -0.4 -0.6 -0.8 -1.0 -50 - Temperature (°C) FIGURE 2-7: Integral Nonlinearity (INL) vs. Temperature. 1.0 0.8 0.6 0.4 Positive DNL 0.2 0.0 -0.2 Negative DNL -0.4 -0.6 -0 ...

Page 9

... FIGURE 2-17: (DNL) vs. Temperature (V 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 4.5 5.0 2.5 . FIGURE 2-18: DD MCP3202 = 18 +25°C. SAMPLE ksps 512 1024 1536 2048 2560 3072 3584 4096 Digital Code Differential Nonlinearity = ksps Positive DNL ...

Page 10

... MCP3202 Note: Unless otherwise indicated 1.0 0 2. ksps SAMPLE 0.4 0.2 0.0 -0.2 -0.4 -0 -0.8 f SAMPLE -1.0 -50 - Temperature (°C) FIGURE 2-19: Gain Error vs. Temperature. 100 SAMPLE 2. ksps SAMPLE Input Frequency (kHz) FIGURE 2-20: Signal-to-Noise Ratio (SNR) vs. Input Frequency. 0 -10 -20 -30 ...

Page 11

... FIGURE 2-29: (PSR) vs. Ripple Frequency. 0 -10 -20 = 100 ksps -30 = 9.985 kHz -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 40000 50000 0 FIGURE 2-30: 1 kHz input (Representative Part, V MCP3202 = 18 +25°C. SAMPLE 100 ksps SAMPLE ksps SAMPLE 10 100 Input Frequency (kHz) Effective Number of Bits 10 ...

Page 12

... MCP3202 Note: Unless otherwise indicated 500 All points 1.8 MHz except CLK 450 2.5V 900 kHz DD CLK 400 350 300 250 200 150 100 50 0 2.0 2.5 3.0 3.5 4.0 4.5 V (V) DD FIGURE 2-31 500 450 400 350 300 250 ...

Page 13

... The SPI port serial data input pin is used to clock in input channel configuration data. 3.5 Serial Data Output (D The SPI serial data output pin is used to shift out the results of the A/D conversion. Data will always change on the falling edge of each clock as the conversion takes place. MCP3202 Description ) IN ) OUT DS21034E-page 13 ...

Page 14

... MCP3202 NOTES: DS21034E-page 14 © 2008 Microchip Technology Inc. ...

Page 15

... Following this sample time, the input switch of the converter opens and the device uses the collected charge on the internal sample and hold capacitor to produce a serial 12-bit digital output code. Conversion rates of 100 ksps are possible on the MCP3202. See Section 6.2 “Maintaining Minimum Speed” ...

Page 16

... MCP3202 V CHx PIN 7 pF Legend VA = signal source R = source impedance SS CHx = input channel pad C = input pin capacitance PIN V = threshold voltage leakage current at the pin LEAKAGE due to various junctions SS = sampling switch R = sampling switch resistor sample/hold capacitance SAMPLE FIGURE 4-1: Analog Input Model. 2.0 1 ...

Page 17

... Table 5-1 shows the configuration bits for the MCP3202. The device will begin to sample the analog input on the second rising edge of the clock, after the start bit has been received. The sample period will end on the falling edge of the third clock following the start bit ...

Page 18

... During this time, the bias circuit and the comparator power down while the reference input becomes a DATA high-impedance node, leaving the CLK running to clock out LSB first data or zeroes. FIGURE 5-2: Communication with MCP3202 using LSB first format. DS21034E-page 18 t CYC Don’ ...

Page 19

... As an example, Figure 6-1 and Figure 6-2 show how the MCP3202 can be interfaced to a MCU with a hardware SPI port. Figure 6-1 depicts the operation shown in SPI Mode CS ...

Page 20

... MCP3202 6.2 Maintaining Minimum Clock Speed When the MCP3202 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 for the user to note that a slow clock rate will allow charge to bleed off the sample cap while the conversion is taking place. At 85° ...

Page 21

... In the event the full Microchip part number cannot be marked on one line, it Note: will be carried over to the next line, thus limiting the number of available characters for customer-specific information. © 2008 Microchip Technology Inc. MCP3202 Example: 3202CI 817256 Example: 3202-B ...

Page 22

... MCP3202 /HDG 3ODVWLF 0LFUR 6PDOO 2XWOLQH 3DFNDJH 06 >0623@ 1RWH D N NOTE 1RWHV DS21034E-page φ L © 2008 Microchip Technology Inc. ...

Page 23

... N NOTE 1RWHV © 2008 Microchip Technology Inc. PLO %RG\ >3', MCP3202 c DS21034E-page 23 ...

Page 24

... MCP3202 /HDG 3ODVWLF 6PDOO 2XWOLQH 61 ± 1DUURZ 1RWH N NOTE 1RWHV DS21034E-page 24 PP %RG\ >62,& φ α c β © 2008 Microchip Technology Inc. ...

Page 25

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging © 2008 Microchip Technology Inc. MCP3202 DS21034E-page 25 ...

Page 26

... MCP3202 /HDG 3ODVWLF 7KLQ 6KULQN 6PDOO 2XWOLQH 67 ± 1RWH D N NOTE 1RWHV DS21034E-page 26 PP %RG\ >76623 φ L © 2008 Microchip Technology Inc. ...

Page 27

... The following is the list of modifications: 1. Updates to packaging outline drawings. Revision C (August 2001) The following is the list of modifications: 1. Undocumented changes. Revision B (June 2000) The following is the list of modifications: 1. Undocumented changes. Revision A (August 1999) • Initial release of this document. © 2008 Microchip Technology Inc. MCP3202 DS21034E-page 27 ...

Page 28

... MCP3202 NOTES: DS21034E-page 28 © 2008 Microchip Technology Inc. ...

Page 29

... P = Plastic DIP (300 mil Body), 8-Lead SN = Plastic SOIC (150 mil Body), 8-Lead ST = TSSOP (4.4 mm Body), 8-Lead (C Grade only) © 2008 Microchip Technology Inc. Examples: /XX a) MCP3202-CI/MS: Industrial temperature, Package b) MCP3202-BI/P: c) MCP3202-BI/SN: C Performance grade, d) MCP3202T-BI/SN: Tape and Reel, (Industrial) e) MCP3202T-CI/ST: Tape and Reel, ...

Page 30

... MCP3202 NOTES: DS21034E-page 30 © 2008 Microchip Technology Inc. ...

Page 31

... 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 32

... Fax: 886-3-572-6459 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 © 2008 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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