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MCP4022 Dataheets PDF



Part Number MCP4022
Manufacturers Microchip Technology
Logo Microchip Technology
Description Low-Cost NV Digital POT
Datasheet MCP4022 DatasheetMCP4022 Datasheet (PDF)

MCP4021/2/3/4 Low-Cost NV Digital POT with WiperLock™ Technology Features • Nonvolatile Digital Potentiometer in SOT-23, SOIC, MSOP, and DFN Packages • 64 Taps: 63 Resistors with Taps to Terminal A and Terminal B • Simple Up/Down (U/D) Protocol • Power-on Recall of Saved Wiper Setting • Resistance Values: 2.1 k, 5 k, 10 k or 50 k • Low Tempco: - Absolute (Rheostat): 50 ppm (0°C to 70°C Typ.) - Ratiometric (Potentiometer): 10 ppm (Typ.) • Low Wiper Resistance: 75 (Typ.) • WiperLock™ Technol.

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MCP4021/2/3/4 Low-Cost NV Digital POT with WiperLock™ Technology Features • Nonvolatile Digital Potentiometer in SOT-23, SOIC, MSOP, and DFN Packages • 64 Taps: 63 Resistors with Taps to Terminal A and Terminal B • Simple Up/Down (U/D) Protocol • Power-on Recall of Saved Wiper Setting • Resistance Values: 2.1 k, 5 k, 10 k or 50 k • Low Tempco: - Absolute (Rheostat): 50 ppm (0°C to 70°C Typ.) - Ratiometric (Potentiometer): 10 ppm (Typ.) • Low Wiper Resistance: 75 (Typ.) • WiperLock™ Technology to Secure the Wiper Setting in Nonvolatile Memory (EEPROM) • High-Voltage Tolerant Digital Inputs: up to 12.5V • Low-Power Operation: 1 µA Max Static Current • Wide Operating Voltage: 2.7V to 5.5V • Extended Temperature Range: –40°C to +125°C • Wide Bandwidth (-3 dB) Operation: - 4 MHz (Typ.) for 2.1 k Device Description The MCP4021/2/3/4 devices are nonvolatile, 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. These device’s implement Microchip’s WiperLock™ technology, which allows application-specific calibration settings to be secured in the EEPROM without requiring the use of an additional write-protect pin. Package Types MCP4021 SOIC, MSOP, DFN Potentiometer VDD 1 VSS 2 A3 A W4 8 U/D 7 NC B 6B W 5 CS MCP4023 SOT-23-6 Potentiometer VDD 1 A VSS 2 B U/D 3 6A W 5W 4 CS MCP4022 SOT-23-6 Rheostat VDD 1 VSS 2 U/D 3 AW B 6A 5W 4 CS MCP4024 SOT-23-5 Rheostat VDD 1 W VSS 2 B U/D 3 5W A 4 CS Block Diagram A VDD Power-Up and Brown-Out VSS Control Wiper Register (Resistor Array) 2-Wire CS Interface W and U/D Control Logic EEPROM and WiperLock Technology B Device Features Device Wiper Memory Configuration Type Resistance (typical) Options (k) Wiper () # of Steps VDD Operating Range Control Interface WiperLock Technology MCP4021 Potentiometer (1) EE 2.1, 5.0, 10.0, 50.0 75 64 2.7V - 5.5V U/D Yes MCP4022 Rheostat EE 2.1, 5.0, 10.0, 50.0 75 64 2.7V- 5.5V U/D Yes MCP4023 Potentiometer EE 2.1, 5.0, 10.0, 50.0 75 64 2.7V - 5.5V U/D Yes MCP4024 Rheostat EE 2.1, 5.0, 10.0, 50.0 75 64 2.7V - 5.5V U/D Yes Note 1: Floating either terminal (A or B) allows the device to be used in Rheostat mode. .  2006-2023 Microchip Technology Inc. DS20001945G-page 1 MCP4021/2/3/4 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † VDD ............................................................................................................. 6.5V CS and U/D inputs w.r.t VSS .................................. –0.3V to 12.5V A, B and W terminals w.r.t VSS................... –0.3V to VDD + 0.3V Current at Input Pins ..................................................±10 mA Current at Supply Pins ...............................................±10 mA Current at Potentiometer Pins ...................................±2.5 mA Storage temperature ....................................–65°C to +150°C Ambient temp. with power applied ...............–55°C to +125°C ESD protection on all pins  4 kV (HBM), 400V (MM) Maximum Junction Temperature (TJ) . .........................+150°C † 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. Exposure to maximum rating conditions for extended periods may affect device reliability. AC/DC CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, all parameters apply across the specified operating ranges. TA = –40°C to +125°C, 2.1 k5 k10 kand50 kdevicesTypical specifications represent values for VDD = 5.5V, VSS = 0V, TA = +25°C. Parameters Sym Min Typ Max Units Conditions Operating Voltage Range CS Input Voltage Supply Current Resistance (± 20%) VDD 2.7 — VCS VSS — IDD — 45 — 15 — 0.3 — 0.6 RAB 1.68 2.1 4.0 5 5.5 12.5 — — 1 3 2.52 6.0 V V The CS pin will be at one of three input levels (VIL, VIH or VIHH). (Note 6) µA 5.5V, CS = VSS, fU/D = 1 MHz µA 2.7V, CS = VSS, fU/D = 1 MHz µA Serial Interface Inactive (CS = VIH, U/D = VIH) mA EE Write cycle, TA = +25°C k -202 devices(Note 1) k -502 devices(Note 1) 8.0 10 12.0 k -103 devices(Note 1) 40.0 50 60.0 k -503 devices(Note 1) Resolution N 64 Taps No Missing Codes Step Resistance RS — RAB / 63 —  Note 6 Note 1: Resistance is defined as the resistance between terminal A to terminal B. 2: INL and DNL are measured at VW with VA = VDD and VB = VSS. (–202 devices VA = 4V). 3: MCP4021/23 only, test conditions are: IW = 1.9 mA, code = 00h. 4: MCP4022/24 .


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