MCP4922T-E/ST Microchip Technology, MCP4922T-E/ST Datasheet
MCP4922T-E/ST
Specifications of MCP4922T-E/ST
MCP4922T-E/STRTR
MCP4922T-E/STRTR
MCP4922T-E/STTR
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Related parts for MCP4922T-E/ST
MCP4922T-E/ST Summary of contents
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... MCP4922 12 2 Note 1: The products listed here have similar AC/ DC performances. 2010 Microchip Technology Inc. with SPI Interface Description The MCP4902/4912/4922 devices are dual 8-bit, 10-bit, and Digital-to-Analog Converters (DACs), respectively. The devices operate from a single 2.7V to 5.5V supply with SPI compatible Serial Peripheral Interface ...
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... Gain Logic DS22250A-page 2 CS SDI SCK Interface Logic Power-on Reset Input Input Register A Register B DAC DAC A B Register Register String String DAC DAC B A Buffer Gain Logic Output Op Amps Output Logic V V SHDN OUTB OUTA REF 2010 Microchip Technology Inc. ...
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... Note 1: Guaranteed monotonic by design over all codes. 2: This parameter is ensured by design, and not 100% tested. 2010 Microchip Technology Inc. MCP4902/4912/4922 † Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of ...
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... Vp-p, REF Unbuffered 2.5V ±0.2Vp-p, REF Frequency = 1 kHz V Accuracy is better than 1 LSb for – 40 mV) OUT DD µs 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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... Input Impedance R VREF Input Capacitance – C VREF Unbuffered Mode Note 1: Guaranteed monotonic by design over all codes. 2: This parameter is ensured by design, and not 100% tested. 2010 Microchip Technology Inc. MCP4902/4912/4922 = 5V 0V 2.048V, Output Buffer Gain ( REF Min Typ Max Units 2.7 — ...
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... Vp-p, REF Unbuffered 2.5V ±0.1Vp-p, REF Frequency = 1 kHz Accuracy is better than 1 LSb for – 40 mV) OUT DD 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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... IDLE Note 1: This parameter is ensured by design and not 100% tested CSSR Mode 1,1 SCK Mode 0 MSb in LDAC FIGURE 1-1: SPI Input Timing Data. 2010 Microchip Technology Inc. MCP4902/4912/4922 = 2.7V – 5.5V Min Typ Max Units 0.7 V — — — — 0 — ...
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... Min Typ Max Units T -40 — +125 ° -40 — +125 ° -65 — +150 °C A — 70 — °C/W JA — 120 — °C/W JA — 100 — °C exceed the maximum junction temperature GND. SS Conditions Note 1 2010 Microchip Technology Inc. ...
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... Temperature (MCP4922). 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 0 1024 2048 3072 Code (Decimal) 1 FIGURE 2-3: DNL vs. Code and V Gain = 1 (MCP4922). 2010 Microchip Technology Inc. MCP4902/4912/4922 = 5V 0V 2.048V, Gain = 2x REF 0.0766 0.0764 0.0762 0.076 0.0758 0.0756 0.0754 0.0752 0.075 -40 4096 FIGURE 2-4: Temperature (MCP4922) ...
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... Code (Decimal) INL vs. Code (MCP4922). (Figure 2-10) for o o Temp = - +125 C 256 384 512 640 768 896 1024 Code DNL vs. Code and 125 C 256 384 512 640 768 896 1024 Code INL vs. Code and 2010 Microchip Technology Inc. ...
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... C -0 128 160 192 Code FIGURE 2-14: INL vs. Code and Temperature (MCP4902). 400 350 300 250 200 -40 - Ambient Temperature (ºC) FIGURE 2-15: I vs. Temperature and 2010 Microchip Technology Inc. MCP4902/4912/4922 = 5V 0V 2.048V, Gain = 2x REF FIGURE 2-16 224 256 FIGURE 2-17: 5 ...
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... Ambient Temperature (ºC) Gain Error vs. Ambient . 5.5V 5.0V 4.0V 3.0V 2.7V - 100 120 Ambient Temperature (ºC) V High Threshold 5.5V 5.0V 4.0V 3.0V 2.7V - 100 120 Ambient Temperature (ºC) V Low Threshold 2010 Microchip Technology Inc. ...
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... Ambient Temperature (ºC) FIGURE 2-26: V High Limit vs. Ambient OUT Temperature and 2010 Microchip Technology Inc. MCP4902/4912/4922 = 5V 0V 2.048V, Gain = 2x REF 0.0045 V DD 5.5V 0.004 5.0V 0.0035 4.0V 0.003 3.0V 0.0025 2.7V 0.002 ...
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... Rise Time. OUT DS22250A-page 2.048V, Gain = 2x REF V OUT LDAC Time (1 µs/div) FIGURE 2-33 OUT SCK LDAC Time (1 µs/div) FIGURE 2-34: V Shutdown. Frequency (Hz) FIGURE 2-35: PSRR vs. Frequency k 100 pF Rise Time. OUT Rise Time Exit OUT 2010 Microchip Technology Inc. ...
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... V REF 600 580 560 540 520 500 480 460 440 420 400 Worst Case Codes (decimal) FIGURE 2-37 Bandwidth vs. Worst Codes. 2010 Microchip Technology Inc. MCP4902/4912/4922 = 5V 0V 2.50V, Gain = 2x REF 160 D = 416 - 672 D = 928 D = 1184 D = 1440 - 1696 D = 1952 ...
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... MCP4902/4912/4922 NOTES: DS22250A-page 16 2010 Microchip Technology Inc. ...
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... Serial Clock Input (SCK) SCK is the SPI compatible serial clock input pin. 3.4 Serial Data Input (SDI) SDI is the SPI compatible serial data input pin. 2010 Microchip Technology Inc. MCP4902/4912/4922 Table 3-1. Function ) OUT ...
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... MCP4902/4912/4922 NOTES: DS22250A-page 18 2010 Microchip Technology Inc. ...
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... See the output swing voltage specification in Section 1.0 “Electrical Characteris- tics”. 1 LSb is the ideal voltage difference between two successive codes. Table 4-1 illustrates the LSb calculation of each device. 2010 Microchip Technology Inc. MCP4902/4912/4922 TABLE 4-1: Device Selection MCP4902 ( and ...
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... OUT Transients 0 1 FIGURE 4-3: Typical Transient Response. input to REF and frequency response. ) during the device DD pin, can DD V POR POR Transient Duration Time Transients above the below the – V (V) DD POR 2010 Microchip Technology Inc. ...
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... When a DAC is changed from Shutdown to Active mode, the output settling time takes less than 10 µs, but more than the standard active mode settling time (4.5 µs). 2010 Microchip Technology Inc. MCP4902/4912/4922 Op Amp Power-Down ...
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... MCP4902/4912/4922 NOTES: DS22250A-page 22 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. MCP4902/4912/4922 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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... W-x W-x W-x W-x W W-x W-x W-x W-x W-x W available. OUT U = Unimplemented bit, read as ‘0’ bit is cleared W-x W-x W-x W-x W bit 0 W-x W-x W-x W-x W bit 0 W-x W-x W-x W-x W bit bit is unknown 2010 Microchip Technology Inc. ...
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... X = “don’t care” bits FIGURE 5-2: Write Command for MCP4912 (10-bit DAC SCK config bits SDI A/B BUF GA SHDN D7 LDAC V OUT Note “don’t care” bits FIGURE 5-3: Write Command for MCP4902 (8-bit DAC). 2010 Microchip Technology Inc. MCP4902/4912/4922 data bits ...
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... MCP4902/4912/4922 NOTES: DS22250A-page 26 2010 Microchip Technology Inc. ...
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... DD The power source supplying these devices should be as clean as possible. If the application circuit has separate digital and analog power supplies should reside on the analog plane. SS 2010 Microchip Technology Inc. MCP4902/4912/4922 µ 0.1 µ REFA ...
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... V is available with REF output voltage range. However, , the noise REF needs to be very low or REF is used while two resistors REF illustrates this concept. Note that the Comparator V TRIP V – CC 2010 Microchip Technology Inc. ...
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... V R OUT V ------------------------------------------- - = trip R 2 2010 Microchip Technology Inc. MCP4902/4912/4922 If the threshold is not near V a “window” around the threshold has several advantages. One simple method to create this “window” use a voltage divider network with a pull-up and pull-down resistor. Example 6-4 V ...
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... DAC’s output to a selected 4 instead of V REF higher offset REF – CC 0.1 µF R 2.05 2.05 1 – – 2 ------------ - ------------ - ----- - -- - = = V 4 REF k, the gain will be 0.5. 2 and R by setting the DAC 2.05V 0. REF ----------------------------------------- -- - = = REF = 10 k 3 2010 Microchip Technology Inc. , ...
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... IN 2010 Microchip Technology Inc. MCP4902/4912/4922 This circuit is typically used in Multiplier mode and is ideal for linearizing a sensor whose slope and offset varies. Refer to Section 6.9 “Using Multiplier Mode” for more information on Multiplier mode. illustrates how The equation to design a bipolar “window” DAC would ...
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... Step 4:The resulting transfer function is not perfectly linear, Example – CC 0.1 µ Gain selection ( Digital value of DAC (0- 4096 Since 2 = 4.2x10 , 22- ’s V has a resolution of 1 mV, B OUTB by 1000 OUTA needs to be 100 k shown in the equation of 6- 2010 Microchip Technology Inc. ...
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... D n V OUT = V G ------ REF N 2 2010 Microchip Technology Inc. MCP4902/4912/4922 When working with very small sensor voltages, plan on eliminating the amplifier’s offset error by storing the DAC’s setting under known sensor conditions. would sense REF V V OUT ...
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... Gain Amplifiers. Adding an op amp to buffer the output, as illustrated in Examples 6-2 to 6-6, extends the output range and power to meet the precise needs of the application. INPUT REF V RPM_SET V RPM OUT DAC V REF SPI V OUT = V G ------ REF – sense 2010 Microchip Technology Inc. ...
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... DEVELOPMENT SUPPORT 7.1 Evaluation and Demonstration Boards TM The Mixed Signal PICtail Demo Board supports the MCP4902/4912/4922 family of devices. Please refer to www.microchip.com for further information on this products capabilities and availability. 2010 Microchip Technology Inc. MCP4902/4912/4922 DS22250A-page 35 ...
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... MCP4902/4912/4922 NOTES: DS22250A-page 36 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. MCP4902/4912/4922 Example: MCP4922 E/P ...
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... MCP4902/4912/4922 /HDG 3ODVWLF 'XDO ,Q/LQH 3 ± PLO %RG\ >3',3@ 1RWH N NOTE 1RWHV DS22250A-page 2010 Microchip Technology Inc. ...
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... PP %RG\ >62,&@ 1RWH N NOTE 1RWHV 2010 Microchip Technology Inc. MCP4902/4912/4922 φ α c β DS22250A-page 39 ...
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... MCP4902/4912/4922 1RWH DS22250A-page 40 2010 Microchip Technology Inc. ...
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... PP %RG\ >76623@ 1RWH NOTE 1RWHV 2010 Microchip Technology Inc. MCP4902/4912/4922 φ L DS22250A-page 41 ...
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... MCP4902/4912/4922 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS22250A-page 42 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. MCP4902/4912/4922 DS22250A-page 43 ...
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... MCP4902/4912/4922 NOTES: DS22250A-page 44 2010 Microchip Technology Inc. ...
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... MCP4912-E/ST: Extended temperature, j) MCP4912T-E/ST: Extended temperature, k) MCP4922-E/P: l) MCP4922-E/SL: m) MCP4922T-E/SL: n) MCP4922-E/ST: Extended temperature, o) MCP4922T-E/ST: Extended temperature, . Extended temperature, PDIP package. SOIC package. SOIC package, Tape and Reel TSSOP package. TSSOP package, Tape and Reel Extended temperature, PDIP package. Extended temperature, SOIC package. ...
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... MCP4902/4912/4922 NOTES: DS22250A-page 46 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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... Fax: 886-3-6578-370 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 2010 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 ...