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MCP4021 Datasheet(PDF) 1 Page - Microchip Technology |
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MCP4021 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 64 page  © 2006 Microchip Technology Inc. DS21945E-page 1 MCP4021/2/3/4 Features • Non-volatile 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 Ω, 5 kΩ, 10 kΩ or 50 kΩ • Low Tempco: - Absolute (Rheostat): 50 ppm (0°C to 70°C typ.) - Ratiometric (Potentiometer): 10 ppm (typ.) • Low Wiper Resistance: 75 Ω (typ.) • WiperLock™ Technology to Secure the wiper setting in non-volatile 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 Ω device Description The MCP4021/2/3/4 devices are non-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. These device’s implement Microchip’s WiperLock tech- nology, which allows application-specific calibration settings to be secured in the EEPROM without requiring the use of an additional write-protect pin. Package Types Block Diagram Device Features . A W B MCP4021 SOIC, MSOP, DFN MCP4022 SOT-23-6 MCP4023 SOT-23-6 MCP4024 SOT-23-5 Rheostat Potentiometer Potentiometer Rheostat A VSS W 1 2 3 4 8 7 6 5 VDD U/D NC B CS 4 1 2 3 5 W CS VDD VSS U/D 4 1 2 3 6 A CS VDD VSS U/D 5 W A W B 4 1 2 3 6 A CS VDD VSS U/D 5 W A W W A B B V DD V SS U/D W B CS WiperLock™ EEPROM and A 2-Wire Interface and Control Logic Power-Up and Brown-Out Control Technology Device Wiper Configuration Memory Type Resistance (typical) # of Steps VDD Operating Range Control Interface WiperLock™ Technology Options (k Ω)Wiper (Ω) 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. Low-Cost NV Digital POT with WiperLock™ Technology |
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Descripción similar - MCP4021 |
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