MCP4801T-E/P MICROCHIP [Microchip Technology], MCP4801T-E/P Datasheet

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MCP4801/4811/4821 8/10/12-Bit Voltage Output Digital-to-Analog Converter with Internal V Features • MCP4801: 8-Bit Voltage Output DAC • MCP4811: 10-Bit Voltage Output DAC • MCP4821: 12-Bit Voltage Output DAC • Rail-to-Rail Output • SPI Interface with 20 MHz Clock Support • ...

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MCP4801/4811/4821 Package Types PDIP, SOIC, MSOP SCK SDI 4 * Includes Exposed Thermal Pad (EP); see Block Diagram LDAC DS22244B-page 2 DFN (2x3 OUT ...

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ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † V ............................................................................................................. DD All inputs and outputs .....................V – 0. Current at Input Pins ....................................................±2 mA Current at Supply Pins ...............................................±50 mA Current at Output Pins ...............................................±25 mA Storage temperature ...

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MCP4801/4811/4821 ELECTRICAL CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise indicated, V Output Buffer Gain ( k to GND, C Parameters Sym Internal Voltage Reference (V ) REF Internal Reference Voltage V REF Temperature Coefficient (Note 2) ...

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ELECTRICAL CHARACTERISTIC WITH EXTENDED TEMPERATURE Electrical Specifications: Unless otherwise indicated k to GND 100 pF. Typical values are at +125°C by characterization or simulation Parameters Sym Power Requirements Operating Voltage V DD ...

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MCP4801/4811/4821 ELECTRICAL CHARACTERISTIC WITH EXTENDED TEMPERATURE (CONTINUED) Electrical Specifications: Unless otherwise indicated k to GND 100 pF. Typical values are at +125°C by characterization or simulation Parameters Sym Output Amplifier Output Swing ...

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CS t CSSR Mode 1,1 SCK Mode 0 SDI MSb in LDAC FIGURE 1-1: SPI Input Timing Data. TEMPERATURE CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, V Parameters Temperature Ranges Specified Temperature Range Operating Temperature Range Storage ...

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MCP4801/4811/4821 2.0 TYPICAL PERFORMANCE CURVES 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 ...

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Note: Unless otherwise indicated +25° 0 0.2 0.1 0 -0.1 -0 +125 -0.3 0 128 256 384 512 640 768 Code FIGURE 2-7: DNL vs. Code and Temperature ...

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MCP4801/4811/4821 Note: Unless otherwise indicated +25° 100 1.E-04 1.E-05 10 1.E-06 1 0.1 1.E-07 0 100 1k 1E-1 1E+0 1E+1 1E+2 1E+3 Frequency (Hz) FIGURE 2-13: Output Noise Voltage Density (V Noise Density) vs. ...

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Note: Unless otherwise indicated +25° 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -40 - Ambient Temperature (ºC) FIGURE 2-18: Hardware Shutdown Current vs. Temperature and 3.5 ...

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MCP4801/4811/4821 Note: Unless otherwise indicated +25° 2.5 2.25 2 1.75 1.5 1.25 1 0.75 0.5 0.25 0 -40 - Ambient Temperature (ºC) FIGURE 2-24: Input Hysteresis vs. Temperature and V . ...

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Note: Unless otherwise indicated +25° OUT SCK LDAC Time (1 µs/div) FIGURE 2-29: V Rise Time. OUT V OUT SCK LDAC Time (1 µs/div) FIGURE 2-30: V Fall Time. OUT V OUT SCK LDAC Time ...

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MCP4801/4811/4821 NOTES: DS22244B-page 14  2010 Microchip Technology Inc. ...

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PIN DESCRIPTIONS The descriptions of the pins are listed in TABLE 3-1: PIN FUNCTION TABLE FOR MCP4801/4811/4821 MCP4801/4811/4821 Symbol MSOP, PDIP, DFN SOIC, DFN SCK 4 4 SDI 5 5 ...

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MCP4801/4811/4821 NOTES: DS22244B-page 16  2010 Microchip Technology Inc. ...

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GENERAL OVERVIEW The MCP4801, MCP4811 and MCP4821 are single channel voltage-output 8-bit, 10-bit and 12-bit DAC devices, respectively. These devices include rail-to-rail output amplifier, internal voltage reference, shutdown and reset-management circuitry. The devices use an SPI serial communication interface ...

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MCP4801/4811/4821 4.0.2 DNL ACCURACY A Differential Non-Linearity (DNL) error is the measure of the variations in code widths from the ideal code width. A DNL error of zero indicates that every code is exactly 1 LSb wide. Actual 111 Transfer ...

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POWER-ON RESET CIRCUIT The internal Power-on Reset (POR) circuit monitors the power supply voltage (V ) during the device DD operation. The circuit also ensures that the DAC powers up with high output impedance (<SHDN> typically 500 ...

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MCP4801/4811/4821 NOTES: DS22244B-page 20  2010 Microchip Technology Inc. ...

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SERIAL INTERFACE 5.1 Overview The MCP4801/4811/4821 devices are designed to interface directly with the Serial Peripheral Interface (SPI) port, available on many microcontrollers, and supports Mode 0,0 and Mode 1,1. Commands and data are sent to the device via ...

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MCP4801/4811/4821 REGISTER 5-1: WRITE COMMAND REGISTER FOR MCP4821 (12-BIT DAC) W-x W-x W-x W-0 W-x 0 — GA SHDN D11 bit 15 REGISTER 5-2: WRITE COMMAND REGISTER FOR MCP4811 (10-BIT DAC) W-x W-x W-x W-0 W-x 0 — GA SHDN ...

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SCK config bits 0 — GA SHDN D11 D10 SDI LDAC V OUT FIGURE 5-1: Write Command for MCP4821 (12-bit DAC SCK config bits 0 — SDI GA ...

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MCP4801/4811/4821 NOTES: DS22244B-page 24  2010 Microchip Technology Inc. ...

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TYPICAL APPLICATIONS The MCP4801/4811/4821 family of devices are general purpose, single channel voltage output DACs for various applications where a precision operation with low-power and internal voltage reference is required. Applications generally suited for the devices are: • Set ...

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MCP4801/4811/4821 6.5 Single-Supply Operation The MCP4801/4811/4821 devices are rail-to-rail voltage output DAC devices designed to operate with a V range of 2.7V to 5.5V. Its output amplifier is robust DD enough to drive small-signal loads directly. Therefore, it does not ...

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Building a “Window” DAC When calibrating a set point or threshold of a sensor, typically only a small portion of the DAC output range is utilized. If the LSb size is adequate enough to meet the application’s accuracy needs, ...

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MCP4801/4811/4821 6.6 Bipolar Operation Bipolar operation is achievable MCP4801/4811/4821 family of devices by utilizing an external operational amplifier (op configuration is desirable due to the wide variety and availability of op amps. This allows a general purpose DAC, with its ...

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Selectable Gain and Offset Bipolar Voltage Output In some applications, precision digital control of the output range is desirable. Example 6-4 to use the MCP4801/4811/4821 family of devices to achieve this in a bipolar or single-supply application. EXAMPLE 6-4: ...

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MCP4801/4811/4821 6.8 Designing a Double-Precision DAC Example 6-5 illustrates how to design a single-supply voltage output capable 24-bit resolution by using 12-bit DACs. This design is simply a voltage divider with a buffered output example, ...

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Building Programmable Current Source Example 6-6 shows an example of building a programmable current source using a voltage follower. The current sensor (sensor resistor) is used to convert the DAC voltage output into a digitally-selectable current source. Adding the ...

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MCP4801/4811/4821 NOTES: DS22244B-page 32  2010 Microchip Technology Inc. ...

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DEVELOPMENT SUPPORT 7.1 Evaluation & Demonstration Boards ™ The Mixed Signal PICtail Demo Board supports the MCP4801/4811/4821 family of devices. Refer to www.microchip.com for further information on this product’s capabilities and availability.  2010 Microchip Technology Inc. MCP4801/4811/4821 DS22244B-page ...

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MCP4801/4811/4821 NOTES: DS22244B-page 34  2010 Microchip Technology Inc. ...

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PACKAGING INFORMATION 8.1 Package Marking Information 8-Lead DFN (2x3) XXX YWW NN 8-Lead MSOP XXXXXX YWWNNN 8-Lead PDIP (300 mil) XXXXXXXX XXXXXNNN YYWW 8-Lead SOIC (150 mil) XXXXXXXX XXXXYYWW NNN Legend: XX...X Customer-specific information Y Year code (last digit ...

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MCP4801/4811/4821 /HDG 3ODVWLF 'XDO )ODW 1R /HDG 3DFNDJH 0& ± 1RWH D N NOTE TOP VIEW A3 1RWHV DS22244B-page 36 PP %RG\ >') EXPOSED PAD BOTTOM VIEW A NOTE 2 A1 ...

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Microchip Technology Inc. MCP4801/4811/4821 PP %RG\ >')1@ DS22244B-page 37 ...

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MCP4801/4811/4821 /HDG 3ODVWLF 0LFUR 6PDOO 2XWOLQH 3DFNDJH 06 >0623@ 1RWH D N NOTE 1RWHV DS22244B-page φ L  2010 Microchip Technology Inc. ...

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Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  2010 Microchip Technology Inc. MCP4801/4811/4821 DS22244B-page 39 ...

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MCP4801/4811/4821 /HDG 3ODVWLF 'XDO ,Q /LQH 3 ± 1RWH N NOTE 1RWHV DS22244B-page 40 PLO %RG\ >3',  2010 Microchip Technology Inc. ...

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N NOTE 1RWHV  2010 Microchip Technology Inc. MCP4801/4811/4821 PP %RG\ >62,& φ ...

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MCP4801/4811/4821 /HDG 3ODVWLF 6PDOO 2XWOLQH 61 ± 1DUURZ 1RWH DS22244B-page 42 PP %RG\ >62,&@  2010 Microchip Technology Inc. ...

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APPENDIX A: REVISION HISTORY Revision A (April 2010) • Original Release of this Document. Revision B (April 2010) • Corrected the “Related Products” table on page 1.  2010 Microchip Technology Inc. MCP4801/4811/4821 DS22244B-page 43 ...

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MCP4801/4811/4821 NOTES: DS22244B-page 44  2010 Microchip Technology Inc. ...

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... P = 8-Lead Plastic Dual In-Line (PDIP 8-Lead Plastic Small Outline - Narrow, 150 mil (SOIC)  2010 Microchip Technology Inc. MCP4801/4811/4821 Examples: a) MCP4801-E/MC: b) MCP4801T-E/MC: Extended temperature, c) MCP4801-E/MS: d) MCP4801T-E/MS: Extended temperature, e) MCP4801-E/P: f) MCP4801-E/SN: g) MCP4801T-E/SN: (Extended) a) MCP4811-E/MC: b) MCP4811T-E/MC: Extended temperature, c) MCP4811-E/MS: d) MCP4811T-E/MS: Extended temperature, e) MCP4811-E/P: ...

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MCP4801/4811/4821 NOTES: DS22244B-page 46  2010 Microchip Technology Inc. ...

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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 ...

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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 Harbour City, Kowloon Fax: 480-792-7277 Hong Kong Technical Support: Tel: 852-2401-1200 http://support.microchip.com Fax: 852-2401-3431 ...