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MAX5437 Dataheets PDF



Part Number MAX5437
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description +-15V 128-Tap Low-Drift Digital Potentiometers
Datasheet MAX5437 DatasheetMAX5437 Datasheet (PDF)

19-2657; Rev 3; 9/04 www.DataSheet4U.com ±15V, 128-Tap, Low-Drift Digital Potentiometers General Description The MAX5436–MAX5439 are 128-tap high-voltage (±5V to ±15V) digital potentiometers in packages that are half the size of comparable devices in 8-pin SO. They perform the same function as mechanical potentiometers, but replace the mechanics with a simple digital interface. The digital logic is powered by a separate single +2.7V to +5.25V supply voltage (VCC). The resistor string uses its .

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19-2657; Rev 3; 9/04 www.DataSheet4U.com ±15V, 128-Tap, Low-Drift Digital Potentiometers General Description The MAX5436–MAX5439 are 128-tap high-voltage (±5V to ±15V) digital potentiometers in packages that are half the size of comparable devices in 8-pin SO. They perform the same function as mechanical potentiometers, but replace the mechanics with a simple digital interface. The digital logic is powered by a separate single +2.7V to +5.25V supply voltage (VCC). The resistor string uses its own analog supplies (V DD and V SS ) that require VDD - VSS to be greater than 9V and less than 31.5V. This allows for greater flexibility in voltage ranges that can be used with these devices. Examples of analog supply ranges include not only dual voltages of ±5V to ±15V, but single-supply voltages, such as +10V, +15V, +30V, -30V, and more, as long as the ranges of VDD - VSS and VCC VSS are met. The MAX5437/MAX5439 include an on-chip, highvoltage, uncommitted amplifier, providing additional reductions in board space and cost. Other features include low 35ppm/°C end-to-end and 5ppm/°C ratiometric resistor temperature coefficients, a 3-wire SPI™/ QSPI™/MICROWIRE™-compatible serial interface, and a power-on reset to midscale. The MAX5436/MAX5438 are available in 10-pin µMAX packages. The MAX5437/MAX5439 are available in 14pin TSSOP package. Each device is guaranteed over the extended temperature range of -40°C to +85°C. Features ♦ +10V to +30V Single-Supply Operation ♦ -28V to -10V Single Negative Supply Operation ♦ ±5V to ±15V Dual-Supply Operation ♦ 128 Tap Positions ♦ Uncommitted High-Voltage Amplifier (MAX5437/MAX5439) ♦ Low Temperature Coefficient 35ppm/°C (End-to-End) 5ppm/°C (Ratiometric) ♦ Small-Footprint Packages 10-Pin µMAX (MAX5436/MAX5438) 14-Pin TSSOP (MAX5437/MAX5439) ♦ Glitchless Switching Between the Resistor Taps ♦ 3-Wire SPI/QSPI/MICROWIRE-Compatible Serial Interface ♦ 50kΩ/100kΩ End-to-End Resistances ♦ Power-On Reset: Wiper Goes to Midscale (Position 64) MAX5436–MAX5439 Ordering Information PART MAX5436EUB TEMP RANGE PINPACKAGE RESISTANCE (kΩ) 50 50 100 100 -40°C to +85°C 10 µMAX -40°C to +85°C 14 TSSOP -40°C to +85°C 10 µMAX -40°C to +85°C 14 TSSOP Applications LCD Screen Contrast Adjustment Data-Acquisition Systems Mechanical Potentiometer Replacement Low-Drift Programmable Gain Amplifier Audio Volume Control MAX5437EUD MAX5438EUB MAX5439EUD Pin Configurations TOP VIEW SCLK 1 DIN 2 CS 3 GND 4 VSS 5 10 VCC 9 L SCLK 1 DIN 2 CS 3 SHDN 4 GND 5 VSS 6 OUT 7 14 VCC 13 L 12 W MAX5436 MAX5438 8 W 7 H 6 VDD MAX5437 MAX5439 11 H 10 VDD 9 IN+ 8 IN- µMAX SPI/QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. TSSOP ________________________________________________________________ Maxim Integrated Products 1 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. www.DataSheet4U.com ±15V, 128-Tap, Low-Drift Digital Potentiometers MAX5436–MAX5439 ABSOLUTE MAXIMUM RATINGS VDD to GND, VSS = GND........................................-0.3V to +34V VSS to GND, VDD = GND........................................-34V to +0.3V VDD to VSS ..............................................................-0.3V to +34V VDD to VCC ........................................................-6.3V to +28.75V VCC to VSS ..............................................................-0.3V to +34V VCC to GND ..............................................................-0.3V to +6V DIN, SCLK, CS, SHDN ...............................-0.3V to (VCC + 0.3V) H, L, W, IN+, IN-, OUT .....................(VSS - 0.3V) to (VDD + 0.3V) Maximum Continuous Current into H, L, and W MAX5436–MAX5439.......................................................±1mA Continuous Power Dissipation (TA = +70°C) 10-Pin µMAX (derate 6.94mW/°C above +70°C) .........556mW 14-Pin TSSOP (derate 9.1mW/°C above +70°C) .........727mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (VDD = +15V, VSS = -15V, VCC = +5V, VH = VDD, VL = VSS, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C, unless otherwise noted.) PARAMETER Resolution Integral Nonlinearity Differential Nonlinearity End-to-End Resistor Tempco Ratiometric Resistor Tempco Full.


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