MCP4014 MICROCHIP [Microchip Technology], MCP4014 Datasheet

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MCP4014

Manufacturer Part Number
MCP4014
Description
Low-Cost 64-Step Volatile Digital POT
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
MCP4014T-103E/OT
Manufacturer:
Microchip Technology
Quantity:
135
Part Number:
MCP4014T-103E/OT
Manufacturer:
MICROCHIP/微芯
Quantity:
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Features
• Volatile Digital Potentiometer in SOT-23, SOIC,
• 64 Taps: 63 Resistors with Taps to terminal A and
• Simple Up/Down (U/D) Protocol
• Power-on Recall of Default Wiper Setting
• Resistance Values: 2.1 kΩ, 5 kΩ, 10 kΩ or 50 kΩ
• Low Tempco:
• Low Wiper Resistance: 75Ω (typ.)
• High-Voltage Tolerant Digital Inputs: Up to 12.5V
• Low-Power Operation: 1 µA Max Static Current
• Wide Operating Voltage Range:
• Extended Temperature Range: -40°C to +125°C
• Wide Bandwidth (-3 dB) Operation:
Description
The MCP4011/2/3/4 devices are volatile, 6-bit Digital
Potentiometers that can be configured as either a
potentiometer or rheostat. The wiper setting is
controlled through a simple Up/Down (U/D) serial
interface.
Device Features
.
© 2006 Microchip Technology Inc.
MCP4011 Potentiometer
MCP4012
MCP4013
MCP4014
MSOP and DFN packages
terminal B
- Custom POR wiper settings available
- Absolute (Rheostat): 50 ppm (0°C to 70°C typ.)
- Ratiometric (Potentiometer): 10 ppm (typ.)
- 1.8V to 5.5V - Device Operation
- 2.7V to 5.5V - Resistor Characteristics
- 4 MHz (typ.) for 2.1 kΩ device
Device
Note 1: Floating either terminal (A or B) allows the device to be used in Rheostat mode.
(contact factory)
Specified
2: Analog characteristics (resistor) tested from 2.7V to 5.5V.
Configuration
Potentiometer
Rheostat
Rheostat
Wiper
Low-Cost 64-Step Volatile Digital POT
(1)
Memory
Type
RAM
RAM
RAM
RAM
POR Wiper
Mid-Scale
Mid-Scale
Mid-Scale
Mid-Scale
Setting
2.1, 5.0, 10.0, 50.0
2.1, 5.0, 10.0, 50.0
2.1, 5.0, 10.0, 50.0
2.1, 5.0, 10.0, 50.0
MCP4011/2/3/4
Options (kΩ)
Resistance (typical)
Package Types
Block Diagram
V
V
V
V
U/D
V
U/D
DD
V
SS
SOIC, MSOP, DFN
W
CS
A
DD
SS
DD
SS
Potentiometer
Potentiometer
1
2
3
4
1
2
3
MCP4011
MCP4013
SOT-23-6
A
B
Wiper
A
(Ω)
Brown-Out
75
75
75
75
Power-Up
Interface
W
Control
Control
2-Wire
Logic
and
and
B
W
8
7
6
5
6 A
Steps
5 W
4
# of
64
64
64
64
U/D
NC
B
CS
CS
1.8V to 5.5V U/D
1.8V to 5.5V U/D
1.8V to 5.5V U/D
1.8V to 5.5V U/D
Operating
Range
V
V
U/D
V
V
U/D
DD
SS
DD
SS
V
DD
1
2
3
1
2
3
MCP4014
SOT-23-5
MCP4012
SOT-23-6
Rheostat
Rheostat
B
(2)
DS21978C-page 1
A
W
B
W
A
5 W
4
6 A
5 W
4
CS
CS
A
B
W
No
No
No
No

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MCP4014 Summary of contents

Page 1

... Mid-Scale 2.1, 5.0, 10.0, 50.0 75 Mid-Scale 2.1, 5.0, 10.0, 50.0 75 Mid-Scale 2.1, 5.0, 10.0, 50.0 75 MCP4012 SOT-23-6 Rheostat MCP4014 SOT-23-5 Rheostat U and Control 2-Wire W and Logic Operating Steps (2) ...

Page 2

... For voltages below 2.7V, refer to Section 2.0 “Typical Performance Curves”. 9: The MCP4011 is externally connected to match the configurations of the MCP4012 and MCP4014 and then tested. DS21978C-page 2 † Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is ...

Page 3

... Non-linearity is affected by wiper resistance (R Section 6.0 “Resistor” for additional information. 8: For voltages below 2.7V, refer to Section 2.0 “Typical Performance Curves”. 9: The MCP4011 is externally connected to match the configurations of the MCP4012 and MCP4014 and then tested. © 2006 Microchip Technology Inc. Sym Min Typ ...

Page 4

... This specification by design. 7: Non-linearity is affected by wiper resistance (R Section 6.0 “Resistor” for additional information. 8: For voltages below 2.7V, refer to Section 2.0 “Typical Performance Curves”. 9: The MCP4011 is externally connected to match the configurations of the MCP4012 and MCP4014 and then tested. DS21978C-page 4 Sym Min Typ Max INL -0.5 ± ...

Page 5

... Non-linearity is affected by wiper resistance (R Section 6.0 “Resistor” for additional information. 8: For voltages below 2.7V, refer to Section 2.0 “Typical Performance Curves”. 9: The MCP4011 is externally connected to match the configurations of the MCP4012 and MCP4014 and then tested. © 2006 Microchip Technology Inc. Sym Min Typ ...

Page 6

MCP4011/2/3 LUC LCUF U/D t LCUR W FIGURE 1-1: Increment Timing Waveform. SERIAL TIMING CHARACTERISTICS Electrical Specifications: Unless otherwise noted, all parameters apply across the specified operating ranges. Extended (E +1.8V to 5.5V ...

Page 7

CS t LUC U/D t LCUR W FIGURE 1-2: Decrement Timing Waveform. SERIAL TIMING CHARACTERISTICS Electrical Specifications: Unless otherwise noted, all parameters apply across the specified operating ranges. Extended (E +1.8V to 5.5V Parameters Sym CS ...

Page 8

MCP4011/2/3/4 12V HUC HCUF U/D t HCUR W FIGURE 1-3: High-Voltage Increment Timing Waveform. SERIAL TIMING CHARACTERISTICS Electrical Specifications: Unless otherwise noted, all parameters apply across the specified operating ranges. Extended (E +1.8V to ...

Page 9

HUC U/D t HCUR W FIGURE 1-4: High-Voltage Decrement Timing Waveform. SERIAL TIMING CHARACTERISTICS Electrical Specifications: Unless otherwise noted, all parameters apply across the specified operating ranges. Extended (E +1.8V to 5.5V ...

Page 10

MCP4011/2/3/4 TEMPERATURE CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, V Parameters Temperature Ranges Specified Temperature Range Operating Temperature Range Storage Temperature Range Thermal Package Resistances Thermal Resistance, 5L-SOT-23 Thermal Resistance, 6L-SOT-23 Thermal Resistance, 8L-DFN (2x3) Thermal Resistance, 8L-MSOP Thermal Resistance, 8L-SOIC ...

Page 11

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 ...

Page 12

MCP4011/2/3/4 Note: Unless otherwise indicated +25° 140 -40C Rw 25C Rw 85C Rw 125C Rw -40C INL 25C INL 85C INL 125C INL 120 -40C DNL 25C DNL 85C DNL 125C DNL INL 100 80 DNL ...

Page 13

Note: Unless otherwise indicated +25° 2080 2060 V = 5.5V DD 2040 2020 V = 2.7V DD 2000 - Ambient Temperature (°C) Ω FIGURE 2-11: 2.1 k – Nominal Ω Resistance ( ) vs. ...

Page 14

MCP4011/2/3/4 Note: Unless otherwise indicated +25° WIPER U/D Ω FIGURE 2-13: 2.1 k – Low-Voltage Decrement Wiper Settling Time (V WIPER U/D Ω FIGURE 2-14: 2.1 k – Low-Voltage Decrement Wiper Settling Time (V WIPER V ...

Page 15

Note: Unless otherwise indicated +25° 140 -40C Rw 25C Rw 85C Rw 125C Rw -40C INL 25C INL 85C INL 125C INL 120 -40C DNL 25C DNL 85C DNL 125C DNL 100 INL 80 DNL 60 ...

Page 16

MCP4011/2/3/4 Note: Unless otherwise indicated +25° 4950 4925 4900 4875 V = 5.5V DD 4850 4825 V = 2.7V DD 4800 -40 - Ambient Temperature (°C) Ω FIGURE 2-24 – ...

Page 17

Note: Unless otherwise indicated +25° WIPER U/D Ω FIGURE 2-26 – Low-Voltage Decrement Wiper Settling Time (V WIPER U/D Ω FIGURE 2-27 – Low-Voltage Decrement Wiper Settling Time (V © 2006 Microchip ...

Page 18

MCP4011/2/3/4 Note: Unless otherwise indicated +25° 120 -40C Rw 25C Rw 85C Rw 125C Rw -40C INL 25C INL 85C INL 125C INL 100 -40C DNL 25C DNL 85C DNL 125C DNL DNL 80 INL 60 ...

Page 19

Note: Unless otherwise indicated 10250 10230 10210 10190 10170 10150 10130 V = 5.5V 10110 DD 10090 V = 2.7V 10070 DD 10050 -40 - Ambient Temperature (°C) Ω FIGURE 2-36 – ...

Page 20

MCP4011/2/3/4 Note: Unless otherwise indicated +25° WIPER U/D Ω FIGURE 2-38 – Low-Voltage Decrement Wiper Settling Time (V WIPER U/D Ω FIGURE 2-39 – Low-Voltage Decrement Wiper Settling Time (V DS21978C-page 20 ...

Page 21

Note: Unless otherwise indicated +25° 200 -40C Rw 25C Rw 85C Rw 125C Rw -40C INL 25C INL 85C INL 125C INL -40C DNL 25C DNL 85C DNL 125C DNL 160 DNL 120 INL 80 RW ...

Page 22

MCP4011/2/3/4 Note: Unless otherwise indicated +25° 49800 49600 49400 49200 49000 48800 48600 48400 48200 48000 -40 - Ambient Temperature (°C) Ω FIGURE 2-48 – Nominal Resistance Ω ...

Page 23

Note: Unless otherwise indicated +25° U/D WIPER Ω FIGURE 2-50 – Low-Voltage Decrement Wiper Settling Time (V U/D WIPER Ω FIGURE 2-51 – Low-Voltage Decrement Wiper Settling Time (V WIPER Ω FIGURE ...

Page 24

MCP4011/2/3/4 Note: Unless otherwise indicated +25° 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 -40 25 Temperature (°C) FIGURE 2-55 Bandwidth vs. Temperature. DS21978C-page ...

Page 25

... The terminal A pin can support both positive and negative current. The voltage on terminal A must be between V and The terminal A pin is not available on the MCP4014. The potentiometer’s terminal A is internally floating. © 2006 Microchip Technology Inc. Table 3-1. Pin Buffer Symbol ...

Page 26

MCP4011/2/3/4 3.6 Chip Select (CS) The CS pin is the chip select input. Forcing the CS pin to V enables the serial commands. These commands IL can increment and decrement the wiper. Forcing the CS pin to V enables the ...

Page 27

... The MCP4013 device offers a voltage divider (potenti- ometer) with terminal B connected to ground. The MCP4014 device is a Rheostat device with terminal A of the resistor floating, terminal B connected shows the to ground, and the wiper (W) available on pin. ...

Page 28

MCP4011/2/3/4 4.2 Power-up When the device powers up (rising V Trip Point Voltage (V )), the “default” wiper setting is TP restored. Table 4-1 shows the default value loaded into the wiper on POR/BOR. TABLE 4-1: DEFAULT POR WIPER SETTING ...

Page 29

SERIAL INTERFACE 5.1 Overview The MCP4011/2/3/4 utilizes a simple 2-wire interface to increment or decrement the digital potentiometer’s wiper terminal (W). This interface uses the CS and U/D pins. The CS pin is the Chip Select input, while the ...

Page 30

MCP4011/2/3/4 5.2.1 INCREMENT This mode is achieved by initializing the U/D pin to a high state (V ) prior to achieving a low state ( pin. Subsequent rising edges of the U/D pin increment the wiper setting toward ...

Page 31

INCREMENT (FOR MCP402X COMPATIBILITY) Note: This command allows compatibility with the MCP402X family, which supports updating of the non-volatile wiper setting. This mode is achieved by initializing the U/D pin to a high state (V ) prior to achieving ...

Page 32

MCP4011/2/3/4 5.2.3 DECREMENT This mode is achieved by initializing the U/D pin to a low state (V ) prior to achieving a low state (V IL pin. Subsequent rising edges of the U/D pin will decrement the wiper setting toward ...

Page 33

DECREMENT (FOR MCP402X COMPATIBILITY) Note: This command allows compatibility with the MCP402X family, which supports updating of the non-volatile wiper setting. This mode is achieved by initializing the U/D pin to a low state (V ) prior to achieving ...

Page 34

MCP4011/2/3/4 5.2.5 HIGH-VOLTAGE INCREMENT 1 (FOR MCP402X COMPATIBILITY) Note: This command allows compatibility with the MCP402X family, which supports updating of the non-volatile wiper setting with the WiperLock Technology feature. This mode is achieved by initializing the U/D pin to ...

Page 35

HIGH-VOLTAGE INCREMENT 2 (FOR MCP402X COMPATIBILITY) Note: This command allows compatibility with the MCP402X family, which supports updating of the non-volatile wiper setting with the WiperLock Technology feature. This mode is achieved by initializing the U/D pin to a ...

Page 36

MCP4011/2/3/4 5.2.7 HIGH-VOLTAGE DECREMENT 1 (FOR MCP402X COMPATIBILITY) Note: This command allows compatibility with the MCP402X family, which supports updating of the non-volatile wiper setting with the WiperLock Technology feature. This mode is achieved by initializing the U/D pin to ...

Page 37

HIGH-VOLTAGE DECREMENT 2 (FOR MCP402X COMPATIBILITY) Note: This command allows compatibility with the MCP402X family, which supports updating of the non-volatile wiper setting with the WiperLock Technology feature. This mode is achieved by initializing the U/D pin to the ...

Page 38

MCP4011/2/3/4 5.3 CS High Voltage The CS pin is High-Voltage (V ) tolerant, like the IHH MCP402X. This allows the MCP401X to be used in MCP402X applications without needing to change other portions of the application circuit. 6.0 RESISTOR Digital ...

Page 39

Resistor Configurations 6.1.1 RHEOSTAT CONFIGURATION When used as a rheostat, two of the three digital poten- tiometer’s terminals are used as a resistive element in the circuit. With terminal W (wiper) and either terminal A or terminal B, a ...

Page 40

MCP4011/2/3/4 6.2 Wiper Resistance Wiper resistance is the series resistance of the wiper. This resistance is typically measured when the wiper is positioned at either zero-scale (00h) or full-scale (3Fh). The wiper resistance in potentiometer-generated voltage divider applications is not ...

Page 41

... 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 (MCP4012 and MCP4014 adjustable resistor configuration. MCP4011/2/3/4 Differential Non-Linearity (DNL) Actual Transfer Function Ideal Transfer Function Wide Code, > ...

Page 42

MCP4011/2/3/4 6.3.2 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 resistance is different at each tap location. When changing from one tap ...

Page 43

DESIGN CONSIDERATIONS In the design of a system with the MCP401X devices, the following considerations should be taken into account: • The Power Supply • The Layout 7.1 Power Supply Considerations The typical application will require a bypass capacitor ...

Page 44

MCP4011/2/3/4 8.0 APPLICATIONS EXAMPLES Non-volatile digital potentiometers have a multitude of practical uses in modern electronic circuits. The most popular uses include precision calibration of set point thresholds, sensor trimming, LCD bias trimming, audio attenuation, adjustable power supplies, motor control ...

Page 45

Operational Amplifier Applications Figure 8-3, Figure 8-4 and Figure 8-5 amplifier circuits that could replace fixed resistors with the MCP4011/2/3/4 to achieve digitally-adjustable analog solutions. Figure 8-4 shows a circuit that allows a non-inverting amplifier to have its’ offset ...

Page 46

MCP4011/2/3/4 8.3 Temperature Sensor Applications Thermistors are resistors with very predictable variation with temperature. Thermistors are a popular sensor choice when a low-cost, temperature-sensing solution is desired. Unfortunately, thermistors have non-linear characteristics that are undesirable, typically requiring trimming in an ...

Page 47

... MCP401X device. The board also has a voltage doubler device (TC1240A), which can be used to show the WiperLock™ Technology feature MCP4021. These boards may be purchased directly from the Microchip web site at www.microchip.com. © 2006 Microchip Technology Inc. MCP4011/2/3/4 MCP4014 of the DS21978C-page 47 ...

Page 48

... MCP4011/2/3/4 10.0 PACKAGING INFORMATION 10.1 Package Marking Information 5-Lead SOT-23 (MCP4014) XXNN 6-Lead SOT-23 (MCP4012 / MCP4013) XXNN Legend: XX...X Customer-specific information Y Year code (last digit of calendar year) YY Year code (last 2 digits of calendar year) WW Week code (week of January 1 is week ‘01’) NNN Alphanumeric traceability code ...

Page 49

Package Marking Information 8-Lead DFN (2x3) (MCP4011) XXX YWW NNN 8-Lead MSOP (MCP4011) XXXXXX YWWNNN 8-Lead SOIC (150 mil) (MCP4011) XXXXXXXX XXXXYYWW NNN Legend: XX...X Customer-specific information Y Year code (last digit of calendar year) YY Year code (last 2 ...

Page 50

MCP4011/2/3/4 5-Lead Plastic Small Outline Transistor (OT) (SOT-23) Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging β Dimension Limits Number of Pins Pitch Outside lead pitch (basic) ...

Page 51

Plastic Small Outline Transistor (CH) (SOT-23) Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging β Dimension Limits Number of Pins Pitch Outside lead pitch Overall Height ...

Page 52

MCP4011/2/3/4 8-Lead Plastic Dual-Flat No-Lead Package (MC) 2x3x0.9 mm Body (DFN) – Saw Singulated Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging D N NOTE TOP VIEW A3 Number ...

Page 53

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 ...

Page 54

MCP4011/2/3/4 8-Lead Plastic Small Outline (SN) – Narrow, 150 mil (SOIC) Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 45° c β Units Dimension Limits n Number ...

Page 55

APPENDIX A: REVISION HISTORY Revision C (December 2006) • Added device designators in conditions column to associate units (MHz) in Bandwidth -3 dB parameter in AC/DC Characteristics table. • Added device designations in conditions column for R-INL and R-DNL specifications. ...

Page 56

MCP4011/2/3/4 NOTES: DS21978C-page 56 © 2006 Microchip Technology Inc. ...

Page 57

... MCP4012T-502E/CH 5 kΩ, 6-LD SOT-23 MCP4012T-103E/CH 10 kΩ, 6-LD SOT-23 MCP4012T-503E/CH 50 kΩ, 6-LD SOT-23 MCP4013T-202E/CH 2.1 kΩ, 6-LD SOT-23 MCP4013T-502E/CH 5 kΩ, 6-LD SOT-23 MCP4013T-103E/CH 10 kΩ, 6-LD SOT-23 MCP4013T-503E/CH 50 kΩ, 6-LD SOT-23 MCP4014T-202E/OT 2.1 kΩ, 5-LD SOT-23 MCP4014T-502E/OT 5 kΩ, 5-LD SOT-23 MCP4014T-103E/OT 10 kΩ, 5-LD SOT-23 MCP4014T-503E/OT 50 kΩ, 5-LD SOT-23 DS21978C-page 57 ...

Page 58

MCP4011/2/3/4 NOTES: DS21978C-page 58 © 2006 Microchip Technology Inc. ...

Page 59

Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families ...

Page 60

W ORLDWIDE AMERICAS ASIA/PACIFIC Corporate Office Asia Pacific Office 2355 West Chandler Blvd. Suites 3707-14, 37th Floor Chandler, AZ 85224-6199 Tower 6, The Gateway Tel: 480-792-7200 Habour City, Kowloon Fax: 480-792-7277 Hong Kong Technical Support: Tel: 852-2401-1200 http://support.microchip.com Fax: 852-2401-3431 ...

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