MCP4921-E/SN Microchip Technology, MCP4921-E/SN Datasheet
MCP4921-E/SN
Specifications of MCP4921-E/SN
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MCP4921-E/SN Summary of contents
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... V V OUTA OUTB SHDN 2004 Microchip Technology Inc. MCP4921/4922 Description The Microchip Technology Inc. MCP492X are 2.7 – 5.5V, low-power, low DNL, 12-Bit Digital-to-Analog Con- verters (DACs) with optional 2x buffered output and SPI interface. The MCP492X are DACs that provide high accuracy ...
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... J 5V AC/DC CHARACTERISTICS Electrical Specifications: Unless otherwise indicated GND 100 -40 to +85°C. Typical values at +25° Parameters Sym Power Requirements Input Voltage V DD Input Current - MCP4921 I DD Input Current - MCP4922 Hardware Shutdown Current I SHDN Software Shutdown Current I SHDN_SW Power-on-Reset Threshold V POR ...
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... Electrical Specifications: Unless otherwise indicated GND 100 -40 to +85°C. Typical values at 25° Parameters Sym Power Requirements Input Voltage V DD Input Current - MCP4921 I DD Input Current - MCP4922 Hardware Shutdown Current I SHDN Software Shutdown Current I SHDN_SW Power-On Reset threshold V POR DC Accuracy Resolution ...
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... EXTENDED TEMPERATURE SPECIFICATIONS Electrical Specifications: Unless otherwise indicated GND 100 pF. Typical values at +125°C by characterization or simulation. L Parameters Sym Power Requirements Input Voltage V DD Input Current - MCP4921 I DD Input Current - MCP4922 Hardware Shutdown Current I SHDN Software Shutdown Current I SHDN_SW Power-On Reset threshold ...
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... Dynamic Performance DAC to DAC Crosstalk Major Code Transition Glitch Digital Feedthrough Analog Crosstalk Note 1: By design, not production tested. 2: Too small to quantify. 2004 Microchip Technology Inc. MCP4921/4922 = 5V 0V 2.048V, output buffer gain ( REF Min Typ Max Units — ...
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... MCP4921/4922 AC CHARACTERISTICS (SPI TIMING SPECIFICATIONS) Electrical Specifications: Unless otherwise indicated, V Typical values are at +25°C. Parameters Sym Schmitt Trigger High-Level V Input Voltage (All digital input pins) Schmitt Trigger Low-Level V Input Voltage (All digital input pins) Hysteresis of Schmitt Trigger V HYS Inputs Input Leakage Current ...
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... A T -40 — +125 ° -65 — +150 °C A — 85 — °C/W JA — 163 — °C/W JA — 206 — °C/W JA — 70 — °C/W JA — 120 — °C/W JA — 100 — °C exceed the Maximum Junction Temperature of J MCP4921/4922 = GND. SS Conditions Note 1 DS21897A-page 7 ...
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... MCP4921/4922 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 or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e ...
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... Ambient Temperature (ºC) FIGURE 2-7: Absolute INL vs. Ambient Temperature. 3 2.5 2 1 Voltage Reference (V) FIGURE 2-8: Absolute INL vs. V 2004 Microchip Technology Inc. MCP4921/4922 = 0V 2.048V, Gain = REF 4096 0 FIGURE 2- 100 120 FIGURE 2-10: Note: Single device graph (Figure 2-10) for illustration of 64 code effect ...
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... I (µA) DD FIGURE 2-12: MCP4921 2.7V 151 156 161 166 171 176 181 186 191 196 201 I (µA) DD FIGURE 2-13: MCP4921 5.0V). DD DS21897A-page 2.048V, Gain = REF 400 5.5V 5.0V 4.0V 350 3.0V 2.7V V 300 DD 250 200 100 120 -40 -20 vs. Ambient FIGURE 2-14: ...
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... FIGURE 2-21: . Ambient Temperature and V 1.6 1.5 1.4 V 1.3 DD 1.2 5.5V 1.1 1 5.0V 0.9 4.0V 3.0V 0.8 2.7V 100 120 -40 FIGURE 2-22: Ambient Temperature and V MCP4921/4922 = 100 pF 5.5V 5.0V 4.0V 3.0V 2. 100 120 Ambient Temperature (ºC) Gain Error vs. Ambient . 5.5V 5 ...
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... MCP4921/4922 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 - 100 120 Ambient Temperature (ºC) FIGURE 2-23: Input Hysteresis vs. Ambient Temperature and 175 170 165 160 155 -40 - 100 120 Ambient Temperature (ºC) FIGURE 2-24: V Input Impedance vs. ...
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... OUT SCK LDAC Time (1 µs/div) FIGURE 2-30: V Fall Time. OUT V OUT SCK LDAC Time (1 µs/div) FIGURE 2-31: V Rise Time 50%. OUT 2004 Microchip Technology Inc. MCP4921/4922 = 0V 2.048V, Gain = REF V OUT LDAC Time (1 µs/div) FIGURE 2-32 OUT SCK LDAC Time (1 µs/div) FIGURE 2-33: V Shutdown ...
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... MCP4921/4922 Note: Unless otherwise indicated +25° -10 -12 100 Frequency (kHz) FIGURE 2-35: Multiplier Mode Bandwidth. Figure 2-35 calculation: Attenuation (dB log ( – 20 log (G(D/4096)) OUT REF 600 580 560 540 520 500 480 460 440 420 400 Worst Case Codes (decimal) FIGURE 2-36 Bandwidth vs ...
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... DAC (V REFA V and V REFA REFB The analog signal on these pins is utilized to set the ref- erence voltage on the string DAC. The input signal can range from AV 3.9 Analog Ground ( the analog ground pin. SS MCP4921/4922 Function Outputs ( OUTA OUTB are DAC outputs. The DAC output ...
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... MCP4921/4922 4.0 GENERAL OVERVIEW The MCP492X devices are voltage output string DACs. These devices include input amplifiers, rail-to-rail out- put amplifiers, reference buffers, shutdown and reset- management circuitry. Serial communication conforms to the SPI protocol. The MCP492X operates from 2.7V to 5.5V supplies. ...
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... latched into the device. When a DAC is changed from Shutdown to Active mode, the output settling time takes < 10 µs, but greater than the standard Active mode settling time (4.5 µs). MCP4921/4922 = 2.0V, typical), the DACs will be held and a subsequent write command is pin provides DD ...
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... MCP4921/4922 5.0 SERIAL INTERFACE 5.1 Overview The MCP492X family is 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 the SDI pin, with data being clocked-in on the rising edge of SCK ...
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... SCK config bits A/B BUF GA SHDN D11 D10 SDI LDAC V OUT FIGURE 5-1: Write Command. 2004 Microchip Technology Inc data bits MCP4921/4922 (mode 1,1) (mode 0,0) DS21897A-page 19 ...
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... MCP4921/4922 6.0 TYPICAL APPLICATIONS Note: At the time of this data sheet’s release, circuit examples had not completed testing. Your results may vary. The MCP492X devices are general purpose DACs intended to be used in applications where a precision, low-power DAC with moderate bandwidth is required. ...
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... Gain select (1x or 2x) D ------- G REF Digital value of DAC (0 – 4096 2 ------------------ OUT MCP4921/4922 Decreasing The Output Step Size , simply SS will reduce the magnitude of each out REF to 0.82V or use a REF is avail- REF is an REF REF REF Comparator V trip V – ...
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... MCP4921/4922 6.4.1.2 Building a “Window” DAC When calibrating a set point or threshold of a sensor, rarely does the sensor utilize the entire output range of the DAC. If the LSB size is adequate to meet the appli- cation’s accuracy needs, then the resolution is sacri- ficed without consequences. If greater accuracy is needed, then the output range will need to be reduced to increase the resolution around the desired threshold ...
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... REF Next, solve for R 4096, knowing that the output needs to be +2.05V. ---------------------- - then REF + MCP4921/4922 and R allow the gain to be selected shift the DAC's output to a selected 4 , instead of REF , if a higher offset – CC and R by setting the DAC ...
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... MCP4921/4922 6.6 Selectable Gain and Offset Bipolar Voltage Output Using A Dual DAC In some applications, precision digital control of the output range is desirable. Example 6-4 illustrates how to use the MCP4922 to achieve this in a bipolar or single-supply application REFA V OUTA MCP492X DAC REFB V OUTB MCP492X DAC SPI™ ...
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... The resulting transfer function is not perfectly linear, as shown in the equation of Example 6- 0.1 µ Gain select (1x or 2x) B ------- OUTB REFB Digital value of DAC (0 – 4096 MCP4921/4922 22 = 4.2e06, 22-bit ‘s V has a resolution of 1 mV, B OUTB by 1000 OUTA needs to be 100 – DS21897A-page 25 ...
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... MCP4921/4922 6.8 Building A Programmable Current Source Example 6-6 illustrates a variation on a voltage follower design where a sense resistor is used to convert the DAC’s voltage output into a digitally-selectable current source. Adding the resistor network from Example 6-2 would be advantageous in this application. The smaller R is, the less power dissipated across it ...
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... Please www.microchip.com for further information on this products capabilities and availability. 2004 Microchip Technology Inc. MCP4921/4922 7.2 Application Notes and Tech Briefs Application notes illustrating the performace and imple- mentation of the MCP492X are planned but currently not released. Please refer to www.microchip.com for ...
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... Standard marking consists of Microchip part number, year code, week code, traceability code (facility code, mask rev#, and assembly code). For marking beyond this, certain price adders apply. Please check with your Microchip Sales Office. DS21897A-page 28 Example: 4921E 412256 Example: MCP4921 E/P256 0412 Example: MCP4921 E/SN0412 256 2004 Microchip Technology Inc. ...
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... Package Marking Information (Continued) 14-Lead PDIP (300 mil) (MCP4922) XXXXXXXXXXXXXX XXXXXXXXXXXXXX YYWWNNN 14-Lead SOIC (150 mil) (MCP4922) XXXXXXXXXX XXXXXXXXXX YYWWNNN 14-Lead TSSOP (MCP4922) XXXXXX YYWW NNN 2004 Microchip Technology Inc. MCP4921/4922 Example: MCP4922E/P 0412256 Example: MCP4922E/SL 0412256 Example: 4922E/ST 0412 256 DS21897A-page 29 ...
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... MCP4921/4922 8-Lead Plastic Micro Small Outline Package (MS) (MSOP (F) β Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Overall Length Foot Length Footprint (Reference) Foot Angle Lead Thickness Lead Width Mold Draft Angle Top ...
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... L .125 .130 .135 c .008 .012 .015 B1 .045 .058 .070 B .014 .018 .022 § eB .310 .370 .430 MCP4921/4922 MILLIMETERS MIN NOM MAX 8 2.54 3.56 3.94 4.32 2.92 3.30 3.68 0.38 7.62 7.94 8.26 6.10 6.35 6.60 9.14 9.46 9.78 3.18 3.30 3 ...
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... MCP4921/4922 8-Lead Plastic Small Outline (SN) – Narrow, 150 mil (SOIC Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Overall Length Chamfer Distance Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top ...
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... L .125 .130 .135 c .008 .012 .015 B1 .045 .058 .070 B .014 .018 .022 eB .310 .370 .430 MCP4921/4922 MILLIMETERS MIN NOM MAX 14 2.54 3.56 3.94 4.32 2.92 3.30 3.68 0.38 7.62 7.94 8.26 6.10 6.35 6.60 18.80 19.05 19.30 3.18 3.30 3 ...
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... MCP4921/4922 14-Lead Plastic Small Outline (SL) – Narrow, 150 mil (SOIC Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Overall Length Chamfer Distance Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top ...
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... E1 .169 .173 .177 D .193 .197 .201 L .020 .024 .028 .004 .006 .008 B1 .007 .010 .012 MCP4921/4922 A2 MILLIMETERS* MIN NOM MAX 14 0.65 1.10 0.85 0.90 0.95 0.05 0.10 0.15 6.25 6.38 6.50 4.30 4.40 4.50 4.90 5.00 5.10 0.50 0.60 0. 0.09 ...
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... MCP4921/4922 NOTES: DS21897A-page 36 2004 Microchip Technology Inc. ...
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... Microchip Technology Inc. MCP4921/4922 . Examples: a) MCP4921T-E/SN: Tape and Reel Extended Temperature, 8LD SOIC package. b) MCP4921T-E/MS: Tape and Reel Extended Temperature, 8LD MSOP package. c) MCP4921-E/SN: Extended Temperature, 8LD SOIC package. d) MCP4921-E/MS: Extended Temperature, 8LD MSOP package. e) MCP4921-E/P: Extended Temperature, 8LD PDIP package. a) MCP4922T-E/SL: ...
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... MCP4921/4922 NOTES: DS21897A-page 38 2004 Microchip Technology Inc. ...
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... PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel and Total Endurance 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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... Via Quasimodo, 12 20025 Legnano (MI) Milan, Italy Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands Waegenburghtplein 4 NL-5152 JR, Drunen, Netherlands Tel: 31-416-690399 Fax: 31-416-690340 United Kingdom 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44-118-921-5869 Fax: 44-118-921-5820 05/28/04 2004 Microchip Technology Inc. ...