MCP4822-E/SN Microchip Technology, MCP4822-E/SN Datasheet
MCP4822-E/SN
Specifications of MCP4822-E/SN
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MCP4822-E/SN Summary of contents
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... Internal V Features • MCP4802: Dual 8-Bit Voltage Output DAC • MCP4812: Dual 10-Bit Voltage Output DAC • MCP4822: Dual 12-Bit Voltage Output DAC • Rail-to-Rail Output • SPI Interface with 20 MHz Clock Support • Simultaneous Latching of the Dual DACs with LDAC pin • ...
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... Gain Logic DS22249A-page 2 CS SDI SCK LDAC Power-on Interface Logic Reset Input Input Register A Register B 2.048V V REF DAC DAC A B Register Register String String DAC DAC A B Gain Logic Output Op Amps Output Logic V V OUTB OUTA 2010 Microchip Technology Inc. ...
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... SHDN_SW Power-on Reset Threshold V POR DC Accuracy MCP4802 Resolution n INL Error INL DNL DNL MCP4812 Resolution n INL Error INL DNL DNL MCP4822 Resolution n INL Error INL DNL DNL Offset Error V OS Offset Error Temperature V /°C OS Coefficient Gain Error g E G/°C Gain Error Temperature ...
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... Code = 0xFFFh Code = 0xFFFh Code = 0xFFFh Accuracy is better than 1 LSb for –40 mV) OUT DD = 400 pF Within 1/2 LSb of final value from 1/4 to 3/4 full-scale range 1 LSb change around major carry (0111...1111 to 1000...0000) 2010 Microchip Technology Inc. ...
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... SHDN_SW Power-On Reset threshold V POR DC Accuracy MCP4802 Resolution n INL Error INL DNL DNL MCP4812 Resolution n INL Error INL DNL DNL MCP4822 Resolution n INL Error INL DNL DNL Offset Error V OS Offset Error Temperature V /°C OS Coefficient Gain Error g E G/°C Gain Error Temperature ...
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... A Units Conditions A LDAC = CS = SDI = SCK = 5.0V +25° MHz (Note 1) CLK MHz T = +25°C (Note Note 1 ns Note 1 ns Applies only when CS falls with CLK high. (Note 1) ns Note 1 ns Note 1 ns Note 1 2010 Microchip Technology Inc. ...
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... Thermal Resistance, 8L-PDIP Thermal Resistance, 8L-SOIC Note 1: The MCP4802/4812/4822 devices operate over this extended temperature range, but with reduced performance. Operation in this range must not cause T of +150°C. 2010 Microchip Technology Inc. MCP4802/4812/4822 = 2.7V – 5.5V Min Typ Max 15 — ...
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... MCP4802/4812/4822 NOTES: DS22249A-page 8 2010 Microchip Technology Inc. ...
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... Note: Unless otherwise indicated +25° 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 0 1024 2048 3072 Code (Decimal) FIGURE 2-1: DNL vs. Code (MCP4822). 0.2 0.1 0 -0.1 -0.2 0 1024 2048 3072 Code (Decimal) 125C FIGURE 2-2: DNL vs. Code and Temperature (MCP4822). 0.0766 0.0764 ...
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... Code INL vs. Code and VDD: 4V VDD: 3V VDD: 2.7V - 100 120 Ambient Temperature (°C) Full-Scale V vs. OUTA . Gain = 1x. DD VDD: 5.5V VDD 100 120 Ambient Temperature (°C) Full-Scale V vs. OUTA . Gain = 2x. DD 2010 Microchip Technology Inc. ...
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... Output Noise Voltage (V Noise Voltage) vs. Bandwidth. Gain = 1x. REF 340 320 300 280 260 240 220 200 180 -40 - Ambient Temperature (°C) FIGURE 2-15: I vs. Temperature and V DD 2010 Microchip Technology Inc. MCP4802/4812/4822 = 5V 0V 2.048V, Gain = 2x REF 10k 100k 1E+4 1E+5 FIGURE 2-16 ...
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... FIGURE 2-22: Temperature and 5.5V 5.0V 4.0V 3.0V 2.7V 100 120 = 5 k 100 pF 5.5V 5.0V 4.0V 3.0V 2. 100 120 Ambient Temperature (ºC) V High Threshold vs 5.5V 5.0V 4.0V 3.0V 2. 100 120 Ambient Temperature (ºC) V Low Threshold vs 2010 Microchip Technology Inc. ...
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... DD 0.0028 0.0026 0.0024 0.0022 0.0020 0.0018 0.0016 0.0014 0.0012 0.0010 -40 - Ambient Temperature (ºC) FIGURE 2-25: V Low Limit vs. OUT Temperature and 2010 Microchip Technology Inc. MCP4802/4812/4822 = 5V 0V 2.048V, Gain = 2x REF 5.5V 15 5.0V 14 4.0V 13 3. -40 -20 100 120 FIGURE 2-26: Temperature and V 6 ...
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... Rise Time. OUT DS22249A-page 2.048V, Gain = 2x REF V OUT LDAC Time (1 µs/div) FIGURE 2-31 OUT SCK LDAC Time (1 µs/div) FIGURE 2-32: V Shutdown. Frequency (Hz) FIGURE 2-33: PSRR vs. Frequency k 100 pF Rise Time. OUT Rise Time Exit OUT 2010 Microchip Technology Inc. ...
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... CS is the Chip Select input pin, which requires an active-low to enable serial clock and data functions. 3.3 Serial Clock Input (SCK) SCK is the SPI compatible serial clock input pin. 2010 Microchip Technology Inc. MCP4802/4812/4822 Table 3-1. Description Supply Voltage Input (2.7V to 5.5V) ...
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... MCP4802/4812/4822 NOTES: DS22249A-page 16 2010 Microchip Technology Inc. ...
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... GENERAL OVERVIEW The MCP4802, MCP4812 and MCP4822 are dual voltage output 8-bit, 10-bit and 12-bit DAC devices, respectively. These devices include rail-to-rail output amplifiers, internal voltage reference, shutdown and reset-management circuitry. The devices use an SPI serial communication interface and operate with a sin- gle supply voltage from 2 ...
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... REF 4.1.2 VOLTAGE REFERENCE The MCP4802/4812/4822 devices utilize internal 2.048V voltage reference. The voltage reference has a low temperature coefficient and characteristics. Refer to Section 1.0 “Electrical Char- acteristics” for the voltage reference specifications. 2010 Microchip Technology Inc. to OUT low noise ...
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... (V) DD POR FIGURE 4-3: Typical Transient Response. 2010 Microchip Technology Inc. MCP4802/4812/4822 4.1.4 SHUTDOWN MODE The user can shut down each DAC channel selectively using a software command (<SHDN> = 0). During Shutdown mode, most of the internal circuits in the channel that was shut down are turned off for power savings ...
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... MCP4802/4812/4822 NOTES: DS22249A-page 20 2010 Microchip Technology Inc. ...
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... Refer to Figure 1-1 and SPI Timing Specifications Table for detailed input and output timing specifications for both Mode 0,0 and Mode 1,1 operation. 2010 Microchip Technology Inc. MCP4802/4812/4822 5.2 Write Command The write command is initiated by driving the CS pin low, followed by clocking the four Configuration bits and the 12 data bits into the SDI pin on the rising edge of SCK ...
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... MCP4802/4812/4822 REGISTER 5-1: WRITE COMMAND REGISTER FOR MCP4822 (12-BIT DAC) W-x W-x W-x W-0 W-x A/B — GA SHDN D11 bit 15 REGISTER 5-2: WRITE COMMAND REGISTER FOR MCP4812 (10-BIT DAC) W-x W-x W-x W-0 W-x A/B — GA SHDN D9 bit 15 REGISTER 5-3: WRITE COMMAND REGISTER FOR MCP4802 (8-BIT DAC) ...
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... SCK config bits — GA SHDN D11 D10 SDI A/B LDAC V OUT FIGURE 5-1: Write Command for MCP4822 (12-bit DAC SCK config bits — SDI A/B GA SHDN D9 LDAC V OUT Note “don’t care” bits. FIGURE 5-2: Write Command for MCP4812 (10-bit DAC). ...
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... MCP4802/4812/4822 NOTES: DS22249A-page 24 2010 Microchip Technology Inc. ...
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... The power source supplying these devices should be as clean as possible. If the application circuit has separate digital and analog power supplies the device should reside on the analog plane. SS 2010 Microchip Technology Inc. MCP4802/4812/4822 6.3 Output Noise Considerations The voltage noise density (in µV/Hz) is illustrated in Figure 2-13 ...
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... DC SET POINT OR CALIBRATION A common application for the devices is a digitally- controlled set point and/or calibration of variable parameters, such as sensor offset or slope. For example, the MCP4822 provides 4096 output steps selected, the internal 2.048V V produce 500 µV of resolution selected, the internal 2.048 V would produce resolution ...
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... MCP4812 MCP4822 V DD DAC SPI 3-wire D n V OUT = 2.048 G ------ Gain selection ( Digital value of DAC (0-255) for MCP4801/MCP4802 n = Digital value of DAC (0-1023) for MCP4811/MCP4812 = Digital value of DAC (0-4095) for MCP4821/MCP4822 N = DAC bit resolution ------------------ - Thevenin Equivalent ------------------------------------------------------ ...
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... DAC R 4 3-wire G = Gain selection ( Digital value of DAC (0-255) for MCP4801/MCP4802 n = Digital value of DAC (0-1023) for MCP4811/MCP4812 = Digital value of DAC (0-4095) for MCP4821/MCP4822 N = DAC bit resolution The equation can be simplified to: – -------- - k and R 1 Step 4: Next, solve for R 4096, knowing that the output needs ...
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... Gain Adjust OUTB IN (DAC for Offset Adjust – Gain selection ( DAC bit resolution Digital value of DAC (0-255) for MCP4802 Digital value of DAC (0-1023) for MCP4812 = Digital value of DAC (0-4095) for MCP4822 R 2 ----- - and CC ------------------ - ...
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... MCP4802/4812/4822 6.8 Designing a Double-Precision DAC Using a Dual DAC Example 6-5 illustrates how to design a single-supply voltage output capable 24-bit resolution from a dual 12-bit DAC (MCP4822). This design is simply a voltage divider with a buffered output example application similar to the one developed in Section 6.6.1 “Design Design a Bipolar DAC Using Example 6-3 with 12- bit MCP4822 or MCP4821” ...
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... DAC’s setting under known sensor conditions. would OUT DAC SPI V CC 3-wire G = Gain selection ( Digital value of DAC (0-255) for MCP4801/MCP4802 n = Digital value of DAC (0-1023) for MCP4811/MCP4812 = Digital value of DAC (0-4095) for MCP4821/MCP4822 N = DAC bit resolution REF Load + – R SENSE DS22249A-page 31 ...
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... MCP4802/4812/4822 NOTES: DS22249A-page 32 2010 Microchip Technology Inc. ...
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... DEVELOPMENT SUPPORT 7.1 Evaluation and Demonstration Boards ™ The Mixed Signal PICtail Demo Board supports the MCP4802/4812/4822 family of devices. Refer to www.microchip.com for further information on this product’s capabilities and availability. 2010 Microchip Technology Inc. MCP4802/4812/4822 DS22249A-page 33 ...
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... MCP4802/4812/4822 NOTES: DS22249A-page 34 2010 Microchip Technology Inc. ...
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... Note: 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. 2010 Microchip Technology Inc. MCP4802/4812/4822 Example: 4822E 009256 ...
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... MCP4802/4812/4822 /HDG 3ODVWLF 0LFUR 6PDOO 2XWOLQH 3DFNDJH 06 >0623@ 1RWH NOTE 1RWHV DS22249A-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. MCP4802/4812/4822 DS22249A-page 37 ...
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... MCP4802/4812/4822 /HDG 3ODVWLF 'XDO ,Q/LQH 3 ± PLO %RG\ >3',3@ 1RWH N NOTE 1RWHV DS22249A-page 2010 Microchip Technology Inc. ...
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... PP %RG\ >62,&@ 1RWH N NOTE 1RWHV 2010 Microchip Technology Inc. MCP4802/4812/4822 φ α c β DS22249A-page 39 ...
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... MCP4802/4812/4822 /HDG 3ODVWLF 6PDOO 2XWOLQH 61 ± 1DUURZ PP %RG\ >62,&@ 1RWH DS22249A-page 40 2010 Microchip Technology Inc. ...
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... APPENDIX A: REVISION HISTORY Revision A (April 2010) • Original Release of this Document. 2010 Microchip Technology Inc. MCP4802/4812/4822 DS22249A-page 41 ...
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... MCP4802/4812/4822 NOTES: DS22249A-page 42 2010 Microchip Technology Inc. ...
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... MCP4812T-E/MS: Extended temperature, (Extended) c) MCP4812-E/P: d) MCP4812-E/SN: e) MCP4812T-E/SN: a) MCP4822-E/MS: b) MCP4822T-E/MS: Extended temperature, c) MCP4822-E/P: d) MCP4822-E/SN: e) MCP4822T-E/SN: . Extended temperature, MSOP package. MSOP package, Tape and Reel. Extended temperature, PDIP package. Extended temperature, SOIC package. Extended temperature, SOIC package, Tape and Reel. Extended temperature, MSOP package. ...
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... MCP4802/4812/4822 NOTES: DS22249A-page 44 2010 Microchip Technology Inc. ...
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... PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, 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. ...
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