MCP3204T-BI/P MICROCHIP [Microchip Technology], MCP3204T-BI/P Datasheet

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MCP3204T-BI/P

Manufacturer Part Number
MCP3204T-BI/P
Description
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
Features
• 12-bit resolution
• ± 1 LSB max DNL
• ± 1 LSB max INL (MCP3204/3208-B)
• ± 2 LSB max INL (MCP3204/3208-C)
• 4 (MCP3204) or 8 (MCP3208) input channels
• 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 max. sampling rate at V
• 50 ksps max. sampling rate at V
• Low power CMOS technology:
• Industrial temp range: -40°C to +85°C
• Available in PDIP, SOIC and TSSOP packages
Applications
• Sensor Interface
• Process Control
• Data Acquisition
• Battery Operated Systems
Package Types
© 2007 Microchip Technology Inc.
PDIP, SOIC, TSSOP
PDIP, SOIC
pseudo-differential pairs
- 500 nA typical standby current, 2 µA max.
- 400 µA max. active current at 5V
2.7V 4-Channel/8-Channel 12-Bit A/D Converters
DGND
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH0
CH1
CH2
CH3
NC
NC
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
16
15
14
13
12
10
11
14
13
12
10
11
9
9
8
V
V
AGND
CLK
D
D
CS/SHDN
DGND
V
V
AGND
CLK
D
D
CS/SHDN
DD
REF
OUT
IN
DD
REF
with SPI
OUT
IN
DD
DD
= 2.7V
= 5V
Serial Interface
MCP3204/3208
Description
The
devices are successive approximation 12-bit Analog-
to-Digital (A/D) Converters with on-board sample and
hold circuitry. The MCP3204 is programmable to pro-
vide two pseudo-differential input pairs or four single-
ended inputs. The MCP3208 is programmable to pro-
vide four pseudo-differential input pairs or eight single-
ended inputs. Differential Nonlinearity (DNL) is speci-
fied at ±1 LSB, while Integral Nonlinearity (INL) is
offered in ±1 LSB (MCP3204/3208-B) and ±2 LSB
(MCP3204/3208-C) versions.
Communication with the devices is accomplished using
a simple serial interface compatible with the SPI proto-
col. The devices are capable of conversion rates of up
to 100 ksps. The MCP3204/3208 devices operate 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 320 µA, respec-
tively. The MCP3204 is offered in 14-pin PDIP, 150 mil
SOIC and TSSOP packages. The MCP3208 is offered
in 16-pin PDIP and SOIC packages.
Functional Block Diagram
CH7*
CH0
CH1
Microchip
* Note: Channels 5-7 available on MCP3208 Only
Channel
Input
Mux
Sample
Hold
and
Technology
CS/SHDN
Control Logic
V
DAC
REF
D
Comparator
IN
Inc.
CLK
DS21298D-page 1
MCP3204/3208
12-Bit SAR
Register
V
Shift
D
DD
OUT
V
SS

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MCP3204T-BI/P Summary of contents

Page 1

A/D Converters with SPI Features • 12-bit resolution • ± 1 LSB max DNL • ± 1 LSB max INL (MCP3204/3208-B) • ± 2 LSB max INL (MCP3204/3208-C) • 4 (MCP3204 (MCP3208) input channels • ...

Page 2

MCP3204/3208 1.0 ELECTRICAL CHARACTERISTICS Absolute 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 Soldering temperature of leads (10 seconds) ...

Page 3

ELECTRICAL SPECIFICATIONS (CONTINUED) Electrical Characteristics: Unless otherwise noted, all parameters apply -40°C to +85°C,f = 100 ksps and f AMB SAMPLE Parameters Sym Analog Inputs Input Voltage Range for CH0- CH7 in Single-Ended Mode Input Voltage ...

Page 4

MCP3204/3208 ELECTRICAL SPECIFICATIONS (CONTINUED) Electrical Characteristics: Unless otherwise noted, all parameters apply -40°C to +85°C,f = 100 ksps and f AMB SAMPLE Parameters Sym Temperature Ranges Specified Temperature Range T A Operating Temperature T A Range ...

Page 5

Test Point D OUT C = 100 pF L Voltage Waveforms for OUT Voltage Waveforms for t DO CLK OUT FIGURE 1-2: Load Circuit ...

Page 6

MCP3204/3208 2.0 TYPICAL PERFORMANCE CHARACTERISTICS Note: The graphs and tables 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 ...

Page 7

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 0.2 ...

Page 8

MCP3204/3208 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 Digital Code FIGURE 2-13: Differential Nonlinearity (DNL) vs. Code (Representative Part). 1.0 0.8 0.6 0.4 ...

Page 9

Note: Unless otherwise indicated 0 2.7 V 0.0 DD REF ksps SAMPLE -0.2 -0.4 -0.6 -0.8 -1 -1.2 DD REF F = 100 ksps SAMPLE ...

Page 10

MCP3204/3208 Note: Unless otherwise indicated 12.00 11.75 11.50 11.25 11. 10. 2 REF SAMPLE 10. ksps SAMPLE 10.25 10.00 9.75 9.50 9.25 9.00 0.0 ...

Page 11

Note: Unless otherwise indicated 500 450 REF DD All points MHz, except CLK 400 2 MHz REF DD CLK 350 300 250 ...

Page 12

MCP3204/3208 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 ...

Page 13

PIN DESCRIPTIONS The descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLE Name Function V +2.7V to 5.5V Power Supply DD DGND Digital Ground AGND Analog Ground CH0-CH7 Analog Inputs CLK Serial Clock D ...

Page 14

MCP3204/3208 This diagram illustrates that the source impedance (R adds to the internal sampling switch (R directly effecting the time that is required to charge the capacitor (Csample). Consequently, larger source impedances increase the offset, gain and integral linearity errors ...

Page 15

SERIAL COMMUNICATIONS Communication with the MCP3204/3208 devices is accomplished using a standard SPI-compatible serial interface. Initiating communication with either device is done by bringing the CS line low (see Figure 5-1). If the device was powered up with the ...

Page 16

MCP3204/3208 CS t SUCS CLK SGL Start IN DIFF HI-Z D OUT t SAMPLE * After completing the data transfer, if further clocks are applied with CS low, the A/D converter will output LSB first data, ...

Page 17

APPLICATIONS INFORMATION 6.1 Using the MCP3204/3208 with Microcontroller (MCU) SPI Ports With most microcontroller SPI ports required to send groups of eight bits also required that the microcontroller SPI port be configured to clock out ...

Page 18

MCP3204/3208 CS MCU latches data from A/D converter on rising edges of SCLK SCLK Data is clocked out of A/D converter on falling edges SGL/ D Start DIFF IN HI-Z D OUT Start Bit ...

Page 19

Maintaining Minimum Clock Speed When the MCP3204/3208 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 ...

Page 20

MCP3204/3208 6.4 Layout Considerations When laying out a printed circuit board for use with analog components, care should be taken to reduce noise wherever possible. A bypass capacitor should always be used with this device, placed as close as possible ...

Page 21

PACKAGING INFORMATION 7.1 Package Marking Information 14-Lead PDIP (300 mil) XXXXXXXXXXXXXX XXXXXXXXXXXXXX YYWWNNN 14-Lead SOIC (150 mil) XXXXXXXXXXX XXXXXXXXXXX YYWWNNN 14-Lead TSSOP (4.4mm) * XXXXXXXX YYWW NNN Legend: XX...X Customer-specific information Y Year code (last digit of calendar year) ...

Page 22

MCP3204/3208 Package Marking Information (Continued) 16-Lead PDIP (300 mil) (MCP3304) XXXXXXXXXXXXXX XXXXXXXXXXXXXX YYWWNNN 16-Lead SOIC (150 mil) (MCP3304) XXXXXXXXXXXXX XXXXXXXXXXXXX YYWWNNN DS21298D-page 22 Example: MCP3208 I/P 0723NNN Example: e MCP3208-B 3 XXXXXXXXXX IYWWNNN © 2007 Microchip Technology Inc. ...

Page 23

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 ...

Page 24

MCP3204/3208 14-Lead Plastic Small Outline (SL) – 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 ...

Page 25

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 26

MCP3204/3208 16-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 ...

Page 27

Plastic Small Outline (SL) – 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 ...

Page 28

MCP3204/3208 NOTES: DS21298D-page 28 © 2007 Microchip Technology Inc. ...

Page 29

APPENDIX A: REVISION HISTORY Revision D (January 2007) This revision includes updates to the packaging dia- grams. © 2007 Microchip Technology Inc. MCP3204/3208 DS21298D-page 29 ...

Page 30

MCP3204/3208 NOTES: DS21298D-page 30 © 2007 Microchip Technology Inc. ...

Page 31

... To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO Device Grade Temperature Range Device: MCP3204: 4-Channel 12-Bit Serial A/D Converter MCP3204T: 4-Channel 12-Bit Serial A/D Converter (Tape and Reel) MCP3208: 8-Channel 12-Bit Serial A/D Converter MCP3208T: 8-Channel 12-Bit Serial A/D Converter (Tape and Reel) Grade ±1 LSB INL C = ±2 LSB INL ...

Page 32

MCP3204/3208 NOTES: DS21298D-page 32 © 2007 Microchip Technology Inc. ...

Page 33

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 34

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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