MCP4728EV Microchip Technology, MCP4728EV Datasheet
MCP4728EV
Specifications of MCP4728EV
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MCP4728EV Summary of contents
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... Low Power Portable Instrumentation • PC Peripherals • Programmable Voltage and Current Source • Industrial Process Control • Instrumentation © 2009 Microchip Technology Inc. MCP4728 Description The MCP4728 device is a quad, 12-bit voltage output Digital-to-Analog Convertor (DAC) with non-volatile memory (EEPROM). Its on-board precision output amplifier allows it to achieve rail-to-rail analog output swing ...
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... Selector V REF REF ( REF REF REF REF V DD Output Logic OUT AMP A Power Down Control Output Logic OUT AMP B Power Down Output Control Logic OUT AMP C Power Down Output Control Logic OUT AMP D Power Down Control © 2009 Microchip Technology Inc. ...
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... This time delay is measured from the falling edge of ACK pulse in I This time delay is not included in the output settling time specification. © 2009 Microchip Technology Inc. † Notice: Stresses above those listed under “Maximum rat- ings” may cause permanent damage to the device. This is a ...
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... Offset error is not included Internal, Gain = x2 REF Code = FFFh, Offset error is not included REF DD Code = FFFh, Offset error is not included. -40 to 0°C -40 to 0° +125° +125°C Code = FFFh Code = FFFh, 1 kHz Code = FFFh, 10 kHz (Note 7) . OUT © 2009 Microchip Technology Inc. ...
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... Within 1/2 LSB of the final value when code changes from 1 3/4 of full scale. 9: This time delay is measured from the falling edge of ACK pulse in I This time delay is not included in the output settling time specification. © 2009 Microchip Technology Inc. DD Min Typical ...
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... SDA and RDY/BSY pins V > 2.7V. DD SDA, SCL, LDAC pins ≤ 2.7V SDA, SCL, LDAC pins SDA, SCL, LDAC pins SCL = SDA = LDAC = SCL = SDA = LDAC = V SS (Note 4) EEPROM write time At +25°C, (Note 3) Updates analog outputs (Note 3) . OUT © 2009 Microchip Technology Inc. ...
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... T FSCL T SCL SU:STA T LOW T SDA HD:STA FSDA 2 FIGURE 1- Bus Timing Data. LDAC V (UDAC = 1) OUT No Update FIGURE 1-2: LDAC Pin Timing vs. V © 2009 Microchip Technology Inc. T HIGH T SU:DAT T HD:DAT LDAC 0.7V DD 0.3V DD Update Update. OUT MCP4728 T RSCL T SU:STO T BUF 0.7V DD 0.3V ...
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... High Speed Mode 1.7 ns High Speed Mode 3.4 ns Standard Mode ns Fast Mode ns High Speed Mode 1.7 ns High Speed Mode 3.4 ns Standard Mode ns Fast Mode ns High Speed Mode 1.7 ns High Speed Mode 3 bus line can be affected. LOW parameter HD:DAT © 2009 Microchip Technology Inc. ...
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... Data Input: This parameter must be longer than t Data Output: This parameter is characterized, and tested indirectly by testing T 4: This specification is not a part of the I plus SDA Fall (or rise) time Time between Start and Stop conditions. © 2009 Microchip Technology Inc. = -40 to +125° +2.7V to +5. +4.5V to +5.5V. DD Min ...
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... Operating Temperature Range Storage Temperature Range Thermal Package Resistances Thermal Resistance, 10L-MSOP DS22187A-page 10 = +2.7V to +5.5V Min Typical Max Units T -40 — +125 ° -40 — +125 ° -65 — +150 °C A θ — 202 — °C GND. SS Conditions © 2009 Microchip Technology Inc. ...
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... Code FIGURE 2-2: INL vs. Code ( 5.5V 1024 2048 3072 Code FIGURE 2-3: INL vs. Code (T © 2009 Microchip Technology Inc. = +5.0V 0V 0.3 0.2 0.1 0 -0.1 -0.2 4096 0 = +25°C). FIGURE 2-4: A 0.3 0.2 0.1 0 -0.1 -0.2 0 4096 = +25°C FIGURE 2-5: ) ...
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... Internal, Gain = x1 DD REF 1024 2048 3072 4096 Code DNL vs. Code (T = +25° 2.7V REF DD 1024 2048 3072 4096 Code DNL vs. Code (T = +25°C 5.5V Internal, Gain = x1 DD REF +85 C 1024 2048 3072 4096 Code DNL vs. Code and © 2009 Microchip Technology Inc. ...
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... INL vs. Code and Temperature 5.5V 125 1024 2048 3072 Code FIGURE 2-15: INL vs. Code and Temperature. © 2009 Microchip Technology Inc. = +5.0V 0V 0.4 0.3 0.2 0.1 0 -0.1 -0.2 +125 -0.3 0 4096 FIGURE 2-16: Temperature . 0.5 0.4 0.3 0.2 0 -0.1 -0.2 o +125 C -0 ...
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... C = 100 pF REF +125 +85 C 1024 2048 3072 4096 Code DNL vs. Code and . V = 5.5V, Gain = 5.5V, Gain = 2.7V, Gain = 110 125 o Temperature ( C) Zero Scale Error vs. = Internal). REF 110 125 o Temperature ( C) Zero Scale Error vs REF DD © 2009 Microchip Technology Inc. ...
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... Half Scale Settling Time ( 5V, UDAC = 1, REF DD DD Code Change: 000h to 7FFh). LDAC FIGURE 2-27: Full Scale Settling Time (V = Internal 5V, UDAC = 1, REF DD Code Change: 000h to FFFh). © 2009 Microchip Technology Inc. = +5.0V 0V (2V/Div) OUT V (2V/Div) OUT Time (2/µs/Div LDAC FIGURE 2-28 REF DD Code Change: FFFh to 000h ) ...
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... Time (5 ¬µs/Div CLK Last ACK CLK pulse Exiting Power Down Mode = 5V, for all REF DD DD Discharging Time due to internal pull-down resistor (500 kΩ) Time (20/µs/Div Last ACK CLK pulse Entering Power Down Mode = 5V, REF DD DD © 2009 Microchip Technology Inc. ...
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... OUT (5V/Div) LDAC V at Channel A OUT Time (5/µs/Div (100 mV/Div) FIGURE 2-39: Channel Cross Talk ( 5V). REF DD DD © 2009 Microchip Technology Inc. = +5.0V 0V kΩ FIGURE 2-40: Code Change Glitch . (V = External REF DD Code Change: 800h to 7FFh. FIGURE 2-41: Code Change Glitch ...
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... Channel 110 125 o Temperature ( C) I vs. Temperature DD = 5V, Code = FFFh). REF = 2.7V All Channels On 3 Channels On 2 Channels On 1 Channel 110 125 o Temperature ( C) I vs. Temperature (V = REF 110 125 o Temperature ( C) I vs. Temperature DD All Channels are in Normal , © 2009 Microchip Technology Inc. ...
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... Temperature ( C) FIGURE 2-49: I vs. Temperature Internal All Channels are in Powered REF , Down Current (mA) FIGURE 2-50: Source Current Capability ( Code = FFFh). REF DD © 2009 Microchip Technology Inc. = +5.0V 0V 110 125 FIGURE 2-51 REF DD Code = FFFh MCP4728 = 5 kΩ 100 pF Code = 000h ...
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... MCP4728 NOTES: DS22187A-page 20 © 2009 Microchip Technology Inc. ...
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... Power-Down selection bit settings. The V pin can drive up to 1000 pF of capacitive OUT load recommended to use a load with R than 5 kΩ. © 2009 Microchip Technology Inc. Table 3-1. Function ). OUT 2 line. ...
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... It goes “High” when the EEPROM program is completed. The RDY/BSY pin is an open-drain N-channel driver. Therefore, it needs a pull-up resistor (about 100 kΩ) from the V line to the RDY/BSY pin. DD the input registers to their 2 C address 2 C © 2009 Microchip Technology Inc. ...
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... Figure 5-15 for the details of the POR status bit. The POR circuit is also powered off if all channels are powered down during the Power-Down mode. © 2009 Microchip Technology Inc. 4.2 Reset Conditions The device can be reset by two independent events: (a) by Power-On-Reset or ( Command ...
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... Gain Select Select (Note 2) (Note 2) (Note 2) PD1 PD0 G D11 D10 D9 X Power-Down Gain Select Select (Note Internal V (V REF DD INPUT REGISTER MAP (VOLATILE) DAC Input Data (12 bits (Note 2) DAC Input Data (12 bits Address Write (2.048V). REF © 2009 Microchip Technology Inc ...
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... UDAC DAC latch bit. Upload the selected DAC input register to its output register ( Upload. Output ( not upload. Note: UDAC bit affects the selected channel only. © 2009 Microchip Technology Inc. Functions and Figure 4-1 for more details. is selected ...
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... Fast Mode Writing. Table 4-5 shows the output update vs. LDAC pin and UDAC bit conditions. =2.048V) is REF = REF FOR OUT REF INTERNAL REFERENCE × REF n ≤ ------------------------------ - 4096 FOR V OUT REF DD × ---------------------------- - V = OUT 4096 DAC input code OUT © 2009 Microchip Technology Inc. ). ...
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... Note 1: (a) LSB with gain 0.5 mV, and (b) LSB with gain mV. © 2009 Microchip Technology Inc. ) OUT TABLE 4-6: Nominal Output Voltage (V) Gain (See Note 1) Selection LSB Ignored REF 2 LSB REF LSB REF ...
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... POWER-DOWN BITS Function Normal Mode 1 kΩ resistor to ground (Note 1) 100 kΩ resistor to ground (Note 1) 500 kΩ resistor to ground (Note 1) is off and OUT V OUT 1 kΩ 100 kΩ 500 kΩ Resistive Load Output Stage for © 2009 Microchip Technology Inc. ...
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... Master Mode Code (HSMMC). The MCP4728 device does not acknowledge this byte. However, upon receiving this command, the device switches to HS © 2009 Microchip Technology Inc. mode and can communicate 3.4 Mbit/s on SDA and SCL lines. The device will switch out of the HS mode on the next STOP condition ...
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... Section 5.6.8 “Write Command: Write I2C Address bits (C2=0, C1=1, C0=1)” for writing the address bits. A0 (C) (A) STOP CONDITION 2 C ADDRESS 2 C address bits into the 2 C address 2 C Address © 2009 Microchip Technology Inc. ...
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... Data (SDA Line) Note 1: Resets Power-Down bits at this falling edge of the last ACK clock bit. FIGURE 5-4: General Call Wake-Up. © 2009 Microchip Technology Inc. 5.4.1 GENERAL CALL RESET The General Call Reset occurs if the second byte is “00000110” (06h). At the acknowledgement of this ...
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... Note 1: At this falling edge of the last ACK clock bit, V updated. FIGURE 5-5: General Call Software Update. DS22187A-page the same ACK (MCP4728 2nd Byte (Command Type = General Call Software Update OUT OUT Stop Note are OUT OUT © 2009 Microchip Technology Inc. ...
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... LDAC pin resumes its normal function after “Stop” bit. FIGURE 5-6: General Call Read I © 2009 Microchip Technology Inc. select the device of LDAC pin needs a logic transition from “High” to “Low” during the negative pulse of the 8th clock of the second byte, and stays “ ...
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... EEPROM. This command writes Reference (V ) selection bits This command writes Gain selection bits of each channel. This command writes Power-Down bits of each channel. Function DAC0 address bits (A2, A1, A0) to the DAC ) selection bits of each channel. REF © 2009 Microchip Technology Inc. ...
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... Send the General Call Software Update command: This command updates all channels simultaneously. Note 1: UDAC bit is not used in this command. © 2009 Microchip Technology Inc. 5.6.2 MULTI-WRITE COMMAND: WRITE DAC INPUT REGISTERS (C2=0, C1=1, C0=0; W1=0, W0=0) This command is used to write DAC input register, one at a time ...
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... By sending the General Call Software Update command. Note 1: The UDAC bit can be used effectively to upload the input register to the output register, but it affects only a selected channel only, while the LDAC pin and General Call Software Update command affect all channels. © 2009 Microchip Technology Inc. ...
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... The analog out- put is updated after the acknowledge pulse of the last byte. Figure 5-14 shows an example of the write com- mand for select gain bits. © 2009 Microchip Technology Inc. 5.6.8 WRITE COMMAND: WRITE I REF ADDRESS BITS (C2=0, C1=1, C0=1) This command writes new each A0) to the DAC input registers and EEPROM ...
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... Update Channel C DAC Input Register at this ACK pulse. Repeat Bytes can be updated after the last byte’s ACK pulse is issued and by OUT 3rd Byte ACK (MCP4728) 3rd Byte ACK (MCP4728) 3rd Byte ACK (MCP4728) 3rd Byte P Stop © 2009 Microchip Technology Inc. ...
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... If UDAC = 0 or LDAC Pin = The user can write to the other channels by sending repeated bytes with new channel selection bits (DAC1 don’t care bit. FIGURE 5-8: Multi-Write Command: Write DAC Input Registers. © 2009 Microchip Technology Inc. C0=0 W1=0 W0=0 A ACK (MCP4728) 3rd Byte ...
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... Repeat Bytes of the 3rd - 4th Bytes ACK (MCP4728) 3rd Byte V PD1 PD0 Gx D11 D10 REF DAC Input Register of Channel D is updated after the 4th byte’s ACK is issued. OUT 4th Byte Note 1 Stop 4th Byte P Notes 1 and 2 © 2009 Microchip Technology Inc. ...
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... EEPROM Write: The MCP4728 device starts writing EEPROM at the falling edge of the 4th byte’s ACK pulse. FIGURE 5-10: Single Write Command: Write to a Single DAC Input Register and EEPROM. © 2009 Microchip Technology Inc. C0=0 W1=1 W0=1 A ACK (MCP4728) 3rd Byte ...
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... Note 2(b) Note 2(b) Stay “Low” during this 3rd byte 2 C Address Bits to the DAC Registers and EEPROM. Stop 4th Byte Command New Address Bits (for confirmation) Type Note 4 Note 3 Stop ----- 9 P 4th Byte Note 4 Note 3 © 2009 Microchip Technology Inc. ...
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... Byte PD1 A PD0 A PD1 B PD0 B A Write Channel A Command Note don’t care bit. FIGURE 5-13: Write Command: Write Power-Down Selection Bits (PD1, PD0) to the DAC Input Registers. © 2009 Microchip Technology Inc. C0=0 ACK (MCP4728) (C2 C1 C0) 2nd Byte REF R/W ...
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... X is don’t care bit. FIGURE 5-14: Write Command: Write Gain Selection Bit (G DS22187A-page 44 C0=0 ACK (MCP4728) ( R/W Write Command Registers and V at this falling edge of ACK pulse the DAC Input Registers. X 2nd Byte Stop Note 1 are updated OUT © 2009 Microchip Technology Inc. ...
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... Note 1: The 2nd - 4th bytes are the contents of the DAC Input Register and the 5th - 7th bytes are the EEPROM contents. The device outputs sequentially from channel POR Bit Set (Device is powered on with V FIGURE 5-15: Read Command and Device Outputs. © 2009 Microchip Technology Inc. ACK (MCP4728) A ACK (MCP4728) 3rd Byte V ...
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... MCP4728 NOTES: DS22187A-page 46 © 2009 Microchip Technology Inc. ...
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... V – V OUT Ideal INL = -------------------------------------- - LSB Where: INL is expressed in LSB V = Code*LSB Ideal V = The output voltage measured at OUT the given input code © 2009 Microchip Technology Inc Analog 4 Output INL = 0.5 LSB 3 (LSB 000 001 ) FIGURE 6-1: ) 6.4 Differential Nonlinearity (DNL) Differential nonlinearity (DNL) error (see the measure of step size between codes in actual transfer function ...
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... V – V OUT Ideal FSE = -------------------------------------- - LSB - Offset Voltage (V ) REF OS Voltage Reference Full Scale Error Gain Error Actual Transfer Function after Offset Error is removed Ideal Transfer Function DAC Input Code Gain Error and Full Scale © 2009 Microchip Technology Inc. ...
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... The digital feedthrough is measured when the DAC is not being written to the output register. This condition can be created by writing input register with both UDAC bit and LDAC pin high. © 2009 Microchip Technology Inc. MCP4728 6.13 Analog Crosstalk Analog crosstalk is the glitch that appears at the output of one DAC due to a change in the output of the other DAC ...
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... MCP4728 NOTES: DS22187A-page 50 © 2009 Microchip Technology Inc. ...
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... Ceramic capacitor µF, Tantalum capacitor 2 FIGURE 7-1: Example of the MCP4728 Device Connection. © 2009 Microchip Technology Inc. 7.1 Connecting to I Pull-Up Resistors The SCL, SDA, and RDY/BSY pins of the MCP4728 device are open-drain configurations. These pins require a pull-up resistor as shown in LDAC pin has a schmitt trigger input configuration and it can be driven by an external MCU I/O pin ...
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... Section 5.5 “Writing and Reading Registers and EEPROM” for more details of using the non-volatile EEPROM memory. and Any REF DD. line can affect DAC DD line. These DD pin (shut-down) mode. During the as the voltage reference for all device address bits command. © 2009 Microchip Technology Inc. ...
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... Since each channel has its own configuration bits for selecting the voltage reference, gain, power-down, etc., the MCP4728 device offers great simplicity and flexibility to use for various DAC applications. © 2009 Microchip Technology Inc. MCP4728 7.6.1 DC SET POINT OR CALIBRATION VOLTAGE SETTINGS ...
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... OUT Light OUT Analog Outputs To MCU Light Comparator 1 R SENSE TRIP R 0.1 ¬µ Comparator 2 R SENSE TRIP R 0.1 ¬µ Comparator 3 R SENSE TRIP R 0.1 ¬µ Comparator 4 R SENSE TRIP R 2 0.1 ¬µ © 2009 Microchip Technology Inc. ...
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... OUT OUT OUT FIGURE 7-4: Sequential Write Command for Setting Test Points in © 2009 Microchip Technology Inc. ACK (MCP4728) UDAC V G REF X Selecting Channel A for Starting channel Update DAC A Input Register at this ACK pulse REF Update DAC A Input Register at this ACK pulse. ...
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... Stop . . . . . . . P ⎞ 1 ----------- - = V DD – LSB ⎠ 4096 V DD ⎞ 2 – ----------- - = ------------ - – LSB ⎠ 4096 ⎞ 4 – ----------- - = ------------ - – LSB ⎠ 4096 ⎞ 8 ----------- - = ------------ - – LSB ⎠ 4096 for all OUT REF DD © 2009 Microchip Technology Inc. ...
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... Evaluation & Demonstration Boards The MCP4728 Evaluation Board is available from Microchip Technology Inc. This board works with Micro- chip’s PICkit™ Serial Analyzer. The user can easily program the DAC input registers and EEPROM using the PICkit Serial Analyzer, and test out the DAC analog output voltages ...
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... MCP4728 NOTES: DS22187A-page 58 © 2009 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. © 2009 Microchip Technology Inc. MCP4728 Example 4728 906256 ...
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... MCP4728 /HDG 3ODVWLF 0LFUR 6PDOO 2XWOLQH 3DFNDJH 81 >0623@ 1RWH 1RWHV DS22187A-page 60 I © 2009 Microchip Technology Inc. φ ...
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... APPENDIX A: REVISION HISTORY Revision A (June 2009) • Original Release of this Document. © 2009 Microchip Technology Inc. MCP4728 DS22187A-page 61 ...
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... MCP4728 NOTES: DS22187A-page 62 © 2009 Microchip Technology Inc. ...
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... To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office PART NO. X /XX ‚ Device Temperature Package Range Device: MCP4728: Single Comparator = -40 ° +125 ° C Temperature Range: E Package Plastic Micro Small Outline Transistor, 10-lead © 2009 Microchip Technology Inc. MCP4728 . Examples: a) MCP4728: Tape and Reel, Extended Temperature, 10LD MSOP package. DS22187A-page 63 ...
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... MCP4728 NOTES: DS22187A-page 64 © 2009 Microchip Technology Inc. ...
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... PICDEM, PICDEM.net, PICtail, PIC Select Mode, Total Endurance, TSHARC, 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 © 2009 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 ...