MCP4017 Microchip Technology Inc., MCP4017 Datasheet
MCP4017
Available stocks
Related parts for MCP4017
MCP4017 Summary of contents
Page 1
... Extended temperature range (-40°C to +125°C) • Very small package (SC70) • Lead free (Pb-free) package Resistance (typical) Wiper Options (kΩ) (Ω) RAM 5.0, 10.0, 50.0, 100.0 75 RAM 5.0, 10.0, 50.0, 100.0 75 RAM 5.0, 10.0, 50.0, 100.0 75 Rheostat MCP4017 SC70 SCL SDA 3 4 SDA ...
Page 2
... Device Block Diagram V Power-up/ DD Brown-out V SS Control Serial Interface SCL Module, SDA Control Logic, & Memory Comparison of Similar Microchip Devices Wiper Device Configuration 2 MCP4017 I C 128 Rheostat MCP4012 U/D 64 Rheostat MCP4022 U/D 64 Rheostat MCP4132 SPI 129 Rheostat MCP4142 SPI 129 Rheostat MCP4152 SPI ...
Page 3
... Maximum Junction Temperature (T ) .............. +150°C J © 2009 Microchip Technology Inc. MCP4017/18/19 † 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 the device at those or any other conditions above those indicated in the operational listings of this specification is not implied ...
Page 4
... MCP4017/18/19 AC/DC CHARACTERISTICS Standard Operating Conditions (unless otherwise specified) Operating Temperature DC Characteristics All parameters apply across the specified operating ranges unless noted Typical specifications represent values for V Parameters Sym Min Supply Voltage V 2.7 DD 1.8 V Start Voltage V DD BOR to ensure Wiper Reset V Rise Rate to ...
Page 5
... and and V . WZSE WFSE ), which changes significantly over voltage and W MCP4017/18/19 ≤ +125°C (extended) = 5.5V +25° Conditions = 5 2.0 mA, code = 00h 2.0 mA, code = 00h W = -20°C to +70°C = -40°C to +85°C = -40°C to +125°C ...
Page 6
... MCP4017/18/19 AC/DC CHARACTERISTICS (CONTINUED) Standard Operating Conditions (unless otherwise specified) Operating Temperature DC Characteristics All parameters apply across the specified operating ranges unless noted Typical specifications represent values for V Parameters Sym Min Full Scale Error V -3.0 WFSE (MCP4018 only) -2.0 (code = 7Fh) -0.5 -0.5 Zero Scale Error ...
Page 7
... DC Characteristics All parameters apply across the specified operating ranges unless noted Typical specifications represent values for V Parameters Sym Min Rheostat Integral R-INL -2.0 Non-linearity -5.0 MCP4018 (Note 3) -2.0 MCP4017 and MCP4019 devices -4.0 only (Note 3) -1.125 -1.5 -0.8 -1.125 Rheostat R-DNL -0.5 Differential Non- -0.75 linearity MCP4018 -0.5 (Note 3) MCP4017 and -0 ...
Page 8
... MCP4017/18/19 AC/DC CHARACTERISTICS (CONTINUED) Standard Operating Conditions (unless otherwise specified) Operating Temperature DC Characteristics All parameters apply across the specified operating ranges unless noted Typical specifications represent values for V Parameters Sym Min Digital Inputs/Outputs (SDA, SCK) Schmitt Trigger V 0 High Input Threshold ...
Page 9
... SDA Out Note 1: Refer to specification D102 (Cb) for load conditions. 2 FIGURE 1- Bus Data Timing. © 2009 Microchip Technology Inc. MCP4017/18/19 Standard Operating Conditions (unless otherwise specified) –40°C ≤ T Operating Temperature Operating Voltage V range is described in Section 2.0 “Typical DD Performance Curves” Min ...
Page 10
... MCP4017/18/19 2 TABLE 1- BUS DATA REQUIREMENTS (SLAVE MODE Characteristics Parame- Sym Characteristic ter No. 100 T Clock high time HIGH 101 T Clock low time LOW T SCL rise time (5) 102A RSCL T SDA rise time (5) 102B RSDA T SCL fall time (5) 103A FSCL T SDA fall time ...
Page 11
... Thermal Resistance, 5L-SC70 (Note 1) Thermal Resistance, 6L-SC70 Note 1: Package Power Dissipation (PDIS) is calculated as follows θ DIS where Junction Temperature © 2009 Microchip Technology Inc. MCP4017/18/19 = +1.8V to +5.5V Sym Min Typ Max Units T -40 — +125 ° -40 — +125 ° ...
Page 12
... MCP4017/18/19 NOTES: DS22147A-page 12 © 2009 Microchip Technology Inc. ...
Page 13
... Temperature (°C) FIGURE 2-1: Interface Active Current (I ) vs. SCL Frequency (f ) and Temperature DD SCL (V = 1.8V, 2.7V and 5.5V). DD © 2009 Microchip Technology Inc. MCP4017/18/ 1.8 5.5V 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 -40 0 120 FIGURE 2- vs. Temperature and V SHDN ( ...
Page 14
... MCP4017/18/19 Note: Unless otherwise indicated +25° 120 -40C Rw 25C Rw 85C Rw 125C Rw -40C INL 25C INL 85C INL 125C INL -40C DNL 25C DNL 85C DNL 125C DNL 100 85°C DNL 125°C 80 INL 60 25°C -40° Wiper Setting (decimal) Ω ...
Page 15
... FIGURE 2-12: Δ Δ vs. Code. WB 2.7 80 120 FIGURE 2-13: Response Time. Wiper V DD 5.5V 80 120 FIGURE 2-14: (SCL signal coupling to Wiper pin). MCP4017/18/19 2.7V 5. Wiper Setting (decimal) Ω 5 Tempco BW Ω 5 Power-Up Wiper Ω 5 Digital Feedthrough DS22147A-page 15 ...
Page 16
... MCP4017/18/19 Note: Unless otherwise indicated +25° Ω FIGURE 2-15: 5 Write Wiper (40h 3Fh) Settling Time (V =5.5V). DD Ω FIGURE 2-16: 5 Write Wiper (40h → 3Fh) Settling Time (V =2.7V). DD Ω FIGURE 2-17: 5 Write Wiper (40h 3Fh) Settling Time (V =1.8V). DD DS22147A-page → ...
Page 17
... FIGURE 2-26: W INL (LSb), DNL (LSb) vs. Wiper Setting and , Temperature (V SS MCP4017/18/19 0.3 -40C Rw 25C Rw 85C Rw 125C Rw -40C INL 25C INL 85C INL 125C INL -40C DNL 25C DNL 85C DNL 125C DNL 0 ...
Page 18
... MCP4017/18/19 Note: Unless otherwise indicated +25° 0.0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 2.7 -0.7 -0.8 1.8V -0.9 -1.0 - Ambient Temperature (°C) Ω FIGURE 2-27 Full Scale Error (FSE) vs. Temperature (V = 5.5V, 2.7V, 1.8V). DD 0.9 0.8 0.7 0.6 1.8V 0.5 0.4 0.3 0.2 5.5V 0.1 0.0 - Ambient Temperature (°C) Ω FIGURE 2-28 Zero Scale Error (ZSE) vs. Temperature (V = 5.5V, 2.7V, 1.8V). DD 10200 10150 10100 1.8V 10050 10000 9950 5.5V 9900 ...
Page 19
... FIGURE 2-34 Write Wiper (40h 3Fh) Settling Time (V =2.7V). DD Ω FIGURE 2-35 Write Wiper (40h 3Fh) Settling Time (V =1.8V). DD © 2009 Microchip Technology Inc. MCP4017/18/ → FIGURE 2-36 00h) Settling Time (V → FIGURE 2-37 00h) Settling Time (V → FIGURE 2-38: ...
Page 20
... MCP4017/18/19 Note: Unless otherwise indicated +25° 120 -40C Rw 25C Rw 85C Rw 125C Rw -40C INL 25C INL 85C INL 125C INL -40C DNL 25C DNL 85C DNL 125C DNL 100 85°C 125° DNL INL -40°C 40 25° ...
Page 21
... FIGURE 2-48: Δ Δ vs. Code. WB 1.8V 2.7 80 120 FIGURE 2-49: Response Time. Wiper V DD 2.7V 80 120 FIGURE 2-50: (SCL signal coupling to Wiper pin). MCP4017/18/19 2.7V 5. Wiper Setting (decimal) Ω Tempco BW Ω Power-Up Wiper Ω Digital Feedthrough DS22147A-page 21 ...
Page 22
... MCP4017/18/19 Note: Unless otherwise indicated +25° Ω FIGURE 2-51 Write Wiper (40h 3Fh) Settling Time (V =5.5V). DD Ω FIGURE 2-52 Write Wiper (40h 3Fh) Settling Time (V =2.7V). DD Ω FIGURE 2-53 Write Wiper (40h 3Fh) Settling Time (V =1.8V). DD DS22147A-page 0V. ...
Page 23
... FIGURE 2-62: W Ω INL (LSb), DNL (LSb) vs. Wiper Setting and Temperature (V MCP4017/18/19 0.3 -40C Rw 25C Rw 85C Rw 125C Rw -40C INL 25C INL 85C INL 125C INL -40C DNL 25C DNL 85C DNL 125C DNL 0 ...
Page 24
... MCP4017/18/19 Note: Unless otherwise indicated +25° 0.00 -0.02 5.5V -0.04 2.7 -0.06 1.8V -0.08 - Ambient Temperature (°C) Ω FIGURE 2-63: 100 k : Full Scale Error (FSE) vs. Temperature (V = 5.5V, 2.7V, 1.8V). DD 0.12 0.08 1.8V 0.04 5.5V 0.00 - Ambient Temperature (°C) Ω FIGURE 2-64: 100 k : Zero Scale Error (ZSE) vs. Temperature (V = 5.5V, 2.7V, 1.8V). DD 99800 99600 99400 99200 99000 1.8V 98800 98600 2 ...
Page 25
... Write Wiper (40h → 3Fh) Settling Time (V = 2.7V). DD Ω FIGURE 2-71: 100 k : Write Wiper (40h → 3Fh) Settling Time (V = 1.8V). DD © 2009 Microchip Technology Inc. MCP4017/18/ FIGURE 2-72: 100 k → 00h) Settling Time (V FIGURE 2-73: 100 k → 00h) Settling Time (V FIGURE 2-74: 100 k → ...
Page 26
... MCP4017/18/19 Note: Unless otherwise indicated +25° 3.5 5.5V 3 2.5 2.7V 2 1.5 1 0 Temperature (°C) FIGURE 2-75: V (SCL, SDA) vs Temperature. 2 5.5V 1.5 2.7V 1 0.5 1. Temperature (°C) FIGURE 2-76: V (SCL, SDA) vs Temperature. DS22147A-page 0.3 0.25 0.2 0.15 0.1 0.05 1.8V 0 120 -40 and FIGURE 2-77: DD Temperature. 1.2 1 0.8 0.6 0.4 0.2 0 120 -40 and FIGURE 2-78: DD and Temperature ...
Page 27
... Code = 3Fh -10 Code = 1Fh -20 Code = 0Fh -30 Code = 01h -40 -50 -60 100 1,000 Frequency (kHz) Ω FIGURE 2-81 – Gain vs. Frequency (-3dB). © 2009 Microchip Technology Inc. MCP4017/18/ -10 -20 Code = 0Fh -30 Code = 01h -40 -50 -60 10,000 100 FIGURE 2-82: Frequency (-3dB). 2.1 Test Circuits ...
Page 28
... MCP4017/18/19 NOTES: DS22147A-page 28 © 2009 Microchip Technology Inc. ...
Page 29
... PIN DESCRIPTIONS The descriptions of the pins are listed in Additional descriptions of the device pins follow. TABLE 3-1: PINOUT DESCRIPTION FOR THE MCP4017/18/19 Pin Number Pin MCP4017 MCP4018 MCP4019 Name (SC70-6) (SC70-6) (SC70- SCL 3 3 SDA — — ...
Page 30
... The terminal A pin does not have a polarity relative to the terminal W pin. The terminal A pin can support both positive and negative current. The voltage on Terminal A must be between V The terminal A pin is not available on the MCP4017 2 C interface. and MCP4019 devices. For these devices, the potentiometer’ ...
Page 31
... This Data Sheet covers a family of three Digital Potentiometer and Rheostat devices. The MCP4018 device is the Potentiometer configuration, while the MCP4017 and MCP4019 devices are the Rheostat configuration. Applications generally suited for the MCP401X devices include: • Set point or offset trimming • ...
Page 32
... Accepted Operational DD Note 1: For system voltages below the minimum operating voltage, the customer will be recommended to use a voltage supervisor to hold the system in reset. This will ensure that MCP4017/18/19 commands are not attempted out of the operating range of the device. Normal Operation Range ...
Page 33
... C Module is compatible with the Phillips I specification. Phillips only defines the field types, field lengths, timings, etc frame. The frame content defines the behavior of the device. The frame content for the MCP4017, MCP4018, and MCP4019 devices are defined in this section of the Data Sheet. 2 Figure 5-1 shows a typical I C bus configurations ...
Page 34
... SDA is sampled low when SCL goes from low to high. • SCL goes low before SDA is asserted low. This may indicate that another mas- ter is attempting to transmit a data "1". A SDA 9 SCL FIGURE 5-5: Waveform. MCP4017/18/ RESPONSES Acknowledge Comment Bit Response N. Module Resets “ ...
Page 35
... CLOCK STRETCHING “Clock Stretching” is something that the Secondary Device can do, to allow additional time to “respond” to the “data” that has been received. The MCP4017/18/19 will not strech the clock signal (SCL) since memory read accesses occur fast enough. SDA SCL ...
Page 36
... GENERAL CALL The General Call is a method that the Master device can communicate with all other Slave devices. The MCP4017/18/19 devices do not respond to General Call address and commands, and therefore the communications are Not Acknowledged. Second Byte x x ...
Page 37
... Device was reset while sending a Write command to the MCP4017/18/19, AND then as the Master Device returns to normal operation and issues a Start condition while the MCP4017/18/19 is issuing this case if the 2nd Start bit is not sent (and the Stop bit was sent) the MCP4017/18/19 could initiate a write cycle. ...
Page 38
... Data is written to the MCP4017/18/19 after every byte transfer (during the A bit STOP or RESTART condition is generated during a data transfer (before the A bit), the data will not be written to MCP4017/18/ 19. Data bytes may be written after each Acknowledge. The command is terminated once a Stop (P) condition occurs ...
Page 39
... X = Don’t Care R/W = Read/Write bit Note 1 = Data bits Note 1: Master Device is responsible for signal signal occurs, the MCP4017/18/19 will abort this transfer and release the bus. 2: The Master Device will A, and the MCP4017/18/19 will release the bus so the Master Device can generate a Stop or Repeated Start condition ...
Page 40
... Read 2 Bytes S Slave Address Master MCP4017/18/ Bus Note 1: For Write Commands, the MSb of the Data Byte is a don’t care since the wiper register is only 7-bits wide. ...
Page 41
... Digital potentiometer applications can be divided into two resistor network categories: • Rheostat configuration • Potentiometer (or voltage divider) configuration The MCP4017 is a true rheostat, with terminal B and the wiper (W) of the variable resistor available on pins. The MCP4018 device offers a voltage divider (potentiometer) with terminal B internally connected to ground ...
Page 42
... Typical 10000 Max. 12000 Min. 40000 MCP4017/18/19-503E Typical 50000 Max. 60000 Min. 80000 MCP4017/18/19-104E Typical 100000 Max. 120000 DS22147A-page 42 A POR/BOR event will load the Volatile Wiper register value with the default value. shows default values offered. Table 6-2 TABLE 6-3: ...
Page 43
... R ), but the temperature coefficient in most cases can be ignored Note: To avoid damage to the internal wiper circuitry in this configuration, care should be taken to insure the current flow never exceeds 2.5 mA. MCP4017/18/19 potentiometer to output a voltage called voltage divider mode. The 6-3 ...
Page 44
... MCP4017/18/19 6.3 Wiper Resistance Wiper resistance is the series resistance of the analog switch that connects the selected resistor ladder node to the Wiper Terminal common signal (see A value in the volatile wiper register selects which analog switch to close, connecting the W terminal to the selected node of the resistor ladder. ...
Page 45
... The absolute temperature coefficient quantifies the error in the end-to-end resistance (Nominal resistance R ) due to temperature drift. This is typically the AB critical error when using a rheostat device (MCP4017 and MCP4019 adjustable resistor configuration. MCP4017/18/19 Differential Non-linearity (DNL) Actual transfer function Ideal transfer function Wide code, > ...
Page 46
... MCP4017/18/19 6.4.2 MONOTONIC OPERATION Monotonic operation means that resistance increases with every step change (from terminal A to terminal B or terminal B to terminal A). The wiper resistances difference at each tap location. When changing from one tap position to the next (either increasing or decreasing), the ΔR ...
Page 47
... DESIGN CONSIDERATIONS In the design of a system with the MCP4017/18/19 devices, the following considerations should be taken into account. These are: • The Power Supply • The Layout In the design of a system with the MCP4017/18/19 devices, the following considerations should be taken into account: • ...
Page 48
... MCP4017/18/19 NOTES: DS22147A-page 48 © 2009 Microchip Technology Inc. ...
Page 49
... LCD bias trimming, audio attenuation, adjustable power supplies, motor control overcurrent trip setting, adjustable gain amplifiers and offset trimming. The MCP4017/18/19 devices can be used to replace the common mechanical trim pot in applications where the operating and terminal voltages are within CMOS process limitations (V 5 ...
Page 50
... MCP4017/18/19 8.2 Operational Amplifier Applications Figure 8-3 and Figure 8-4 illustrate typical amplifier circuits that could replace fixed resistors with the MCP4017/18/19 to achieve digitally-adjustable analog solutions. MCP6291 Amp V DD – MCP4018 MCP4017 FIGURE 8-3: Trimming Offset and Gain in a Non-Inverting Amplifier. ...
Page 51
... This solution puts the digital potentiometer’s R into the voltage divider W calculation. The MCP4017/18/19’s R coefficient is a low 50 ppm (-20°C to +70°C substantially greater than R ’s error because R AB varies with V , wiper setting and temperature ...
Page 52
... The digital potentiometers in this example are used to trim the offset and gain of the wheatstone bridge kΩ MCP4017 V OUT MCP4017 MCP4017 50 kΩ 50 kΩ FIGURE 8-7: Wheatstone Bridge Trimming. DS22147A-page 52 The illustrates © 2009 Microchip Technology Inc. ...
Page 53
... Development Tools To assist in your design and evaluation of the MCP4017/18/19 devices, a Demo board using the MCP4017 device is in development. Please check the Microchip web site for the release of this board. The board part number is tentatively MCP4XXXDM-PGA, and is expected to be available in the summer of 2009. ...
Page 54
... MCP4017/18/19 NOTES: DS22147A-page 54 © 2009 Microchip Technology Inc. ...
Page 55
... 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. MCP4017/18/19 Part Number Code MCP4019T-502E/LT BENN MCP4019T-103E/LT ...
Page 56
... MCP4017/18/19 /HDG 3ODVWLF 6PDOO 2XWOLQH 7UDQVLVWRU /7 >6& 1RWH 1RWHV DS22147A-page © 2009 Microchip Technology Inc. ...
Page 57
... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging © 2009 Microchip Technology Inc. MCP4017/18/19 DS22147A-page 57 ...
Page 58
... MCP4017/18/19 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS22147A-page 58 © 2009 Microchip Technology Inc. ...
Page 59
... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging © 2009 Microchip Technology Inc. MCP4017/18/19 DS22147A-page 59 ...
Page 60
... MCP4017/18/19 NOTES: DS22147A-page 60 © 2009 Microchip Technology Inc. ...
Page 61
... APPENDIX A: REVISION HISTORY Revision A (March 2009) • Original Release of this Document. © 2009 Microchip Technology Inc. MCP4017/18/19 DS22147A-page 61 ...
Page 62
... MCP4017/18/19 NOTES: DS22147A-page 62 © 2009 Microchip Technology Inc. ...
Page 63
... To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office PART NO. XXX X Device Resistance Temperature Version Range Device: MCP4017: Single Rheostat with I interface MCP4017T: Single Rheostat with I interface (Tape and Reel) MCP4018: Single Potentiometer to GND with I MCP4018T: Single Potentiometer to GND with I Reel) MCP4019: Single Rheostat to GND with Interface ...
Page 64
... MCP4017/18/19 NOTES: DS22147A-page 64 © 2009 Microchip Technology Inc. ...
Page 65
... 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. © 2009 Microchip Technology Inc. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, K ...
Page 66
... 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 ...