MCP4921-E/SN Microchip Technology Inc., 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 © 2007 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 kΩ to 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 ...
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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. © 2007 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 θ — 85 — °C/W JA θ — 163 — °C/W JA θ — 206 — °C/W JA θ — 70 — °C/W JA θ — 120 — °C/W JA θ — 100 — °C exceed the Maximum Junction Temperature of J MCP4921/4922 = GND. SS Conditions Note 1 DS21897B-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 © 2007 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 DS21897B-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 = 5 kΩ 100 pF 5.5V 5.0V 4.0V 3.0V 2. 100 120 Ambient Temperature (ºC) Gain Error vs. Ambient . ...
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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 © 2007 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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... 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. © 2007 Microchip Technology Inc data bits MCP4921/4922 (mode 1,1) (mode 0,0) DS21897B-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 D = 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. ---------------------- - ( kΩ, 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 kΩ – DS21897B-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. © 2007 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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... 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. DS21897B-page 28 Example: e 4921E 3 712256 Example: MCP4921 e E/P 3 256 0712 Example: MCP4921 e E/SN 3 0712 256 © 2007 Microchip Technology Inc. ...
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... Package Marking Information (Continued) 14-Lead PDIP (300 mil) XXXXXXXXXXXXXX XXXXXXXXXXXXXX YYWWNNN 14-Lead SOIC (150 mil) XXXXXXXXXX XXXXXXXXXX YYWWNNN 14-Lead TSSOP XXXXXX YYWW NNN © 2007 Microchip Technology Inc. MCP4921/4922 Example: e MCP4922E/P 3 0712256 Example MCP4922E/SL 0712256 Example: e 4922E/ST 3 0712 256 DS21897B-page 29 ...
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... MCP4921/4922 8-Lead Plastic Micro Small Outline Package (MS) [MSOP] 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 Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Overall Length ...
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... Dimension Limits MIN N e .100 BSC A – A2 .115 A1 .015 E .290 E1 .240 D .348 L .115 c .008 b1 .040 b .014 eB – MCP4921/4922 c NOM MAX 8 – .210 .130 .195 – – .310 .325 .250 .280 .365 .400 .130 .150 .010 .015 .060 .070 .018 .022 – .430 ...
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... MCP4921/4922 8-Lead Plastic Small Outline (SN) – 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 Overall Height Molded Package Thickness § Standoff Overall Width Molded Package Width ...
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... Dimension Limits MIN N e .100 BSC A – A2 .115 A1 .015 E .290 E1 .240 D .735 L .115 c .008 b1 .045 b .014 eB – MCP4921/4922 INCHES NOM MAX 14 – .210 .130 .195 – – .310 .325 .250 .280 .750 .775 .130 .150 .010 .015 .060 .070 .018 .022 – ...
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... MCP4921/4922 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 Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width ...
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... Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15 mm per side. 3. Dimensioning and tolerancing per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact value shown without tolerances. REF: Reference Dimension, usually without tolerance, for information purposes only. © 2007 Microchip Technology Inc. MCP4921/4922 ...
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... MCP4921/4922 NOTES: DS21897B-page 36 © 2007 Microchip Technology Inc. ...
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... APPENDIX A: REVISION HISTORY Revision B (February 2007) This revision includes updates to the packaging diagrams. © 2007 Microchip Technology Inc. MCP4921/4922 DS21897B-page 37 ...
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... MCP4921/4922 NOTES: DS21897B-page 38 © 2007 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: DS21897B-page 40 © 2007 Microchip Technology Inc. ...
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... Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. © 2007 Microchip Technology Inc. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, K ...
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... Fax: 886-3-572-6459 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 © 2007 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 ...