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MAX5418LETA Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX5418LETA Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 15 page General Description The MAX5417/MAX5418/MAX5419 nonvolatile, linear- taper, digital potentiometers perform the function of a mechanical potentiometer, but replace the mechanics with a simple 2-wire digital interface, allowing communi- cation with multiple devices. Each device performs the same function as a discrete potentiometer or variable resistor and has 256 tap points. The devices feature an internal, nonvolatile EEPROM used to store the wiper position for initialization during power-up. The fast-mode I2C™-compatible serial inter- face allows communication at data rates up to 400kbps, minimizing board space and reducing interconnection complexity in many applications. Each device is available with one of four factory-preset addresses (see the Selector Guide) and features an address input for a total of eight unique address combinations. The MAX5417/MAX5418/MAX5419 provide three nomi- nal resistance values: 50k Ω (MAX5417), 100kΩ (MAX5418), or 200k Ω (MAX5419). The nominal resistor temperature coefficient is 35ppm/°C end-to-end, and only 5ppm/°C ratiometric. This makes the devices ideal for applications requiring a low-temperature-coefficient variable resistor, such as low-drift, programmable gain- amplifier circuit configurations. The MAX5417/MAX5418/MAX5419 are available in a 3mm x 3mm 8-pin TDFN package, and are specified over the extended -40°C to +85°C temperature range. Applications Mechanical Potentiometer Replacement Low-Drift Programmable-Gain Amplifiers Volume Control Liquid-Crystal Display (LCD) Contrast Control Features ♦ Power-On Recall of Wiper Position from Nonvolatile Memory ♦ Tiny 3mm x 3mm 8-Pin TDFN Package ♦ 35ppm/°C End-to-End Resistance Temperature Coefficient ♦ 5ppm/°C Ratiometric Temperature Coefficient ♦ 50kΩ/100kΩ/200kΩ Resistor Values ♦ Fast I2C-Compatible Serial Interface ♦ 500nA (typ) Static Supply Current ♦ Single-Supply Operation: +2.7V to +5.25V ♦ 256 Tap Positions ♦ ±0.5 LSB DNL in Voltage-Divider Mode ♦ ±0.5 LSB INL in Voltage-Divider Mode 256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers ________________________________________________________________ Maxim Integrated Products 1 VDD GND SDA SCL 8-BIT SHIFT REGISTER 8-BIT LATCH 8-BIT NV MEMORY I2C INTERFACE A0 8 8 256 W L 256- POSITION DECODER H POR MAX5417 MAX5418 MAX5419 Ordering Information/Selector Guide Functional Diagram 19-3185; Rev 2; 8/04 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Pin Configuration appears at end of data sheet. I2C is a trademark of Phillips Corp. Purchase of I2C components from Maxim Integrated Products, Inc. or one of its sublicensed Associated Companies, conveys a license under the Philips I2C Patent Rights to use these com- ponents in an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Philips. *Future product—contact factory for availability. **Exposed pad. PART TEMP RANGE I 2C ADDRESS R (k Ω)PIN-PACKAGE TOP MARK MAX5417LETA -40°C to +85°C 010100A0 50 8 TDFN-EP** AIB MAX5417META* -40°C to +85°C 010101A0 50 8 TDFN-EP** ALS MAX5417NETA* -40°C to +85°C 010110A0 50 8 TDFN-EP** ALT MAX5417PETA* -40°C to +85°C 010111A0 50 8 TDFN-EP** ALU MAX5418LETA -40°C to +85°C 010100A0 100 8 TDFN-EP** AIC MAX5418META* -40°C to +85°C 010101A0 100 8 TDFN-EP** ALV MAX5418NETA* -40°C to +85°C 010110A0 100 8 TDFN-EP** ALW MAX5418PETA* -40°C to +85°C 010111A0 100 8 TDFN-EP** ALX MAX5419LETA -40°C to +85°C 010100A0 200 8 TDFN-EP** AID MAX5419META* -40°C to +85°C 010101A0 200 8 TDFN-EP** ALY MAX5419NETA* -40°C to +85°C 010110A0 200 8 TDFN-EP** ALZ MAX5419PETA* -40°C to +85°C 010111A0 200 8 TDFN-EP** AMA |
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