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Part Number: MAX5439
Description: The MAX5436MAX5439 are 128-tap high-voltage (±5V to ±15V) digital potentiometers in packages that are ...
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MAX5439
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General Description
MAX5439 General Description
The MAX5436MAX5439 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 (VDD and VSS) 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 MAX packages. The MAX5437/MAX5439 are available in 14- pin TSSOP package. Each device is guaranteed over the extended temperature range of -40°C to +85°C.
MAX5439 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
MAX5436MAX5439.........................................................±1mA
Continuous Power Dissipation (TA = +70°C)
10-Pin MAX (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.
MAX5439 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 MAX (MAX5436/MAX5438)
14-Pin TSSOP (MAX5437/MAX5439)
` Glitchless Switching Between the Resistor Taps
` 3-Wire SPI/QSPI/MICROWIRE-Compatible Serial Interface
` 50k/100k End-to-End Resistances
` Power-On Reset: Wiper Goes to Midscale (Position 64)
` -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 MAX (MAX5436/MAX5438)
14-Pin TSSOP (MAX5437/MAX5439)
` Glitchless Switching Between the Resistor Taps
` 3-Wire SPI/QSPI/MICROWIRE-Compatible Serial Interface
` 50k/100k End-to-End Resistances
` Power-On Reset: Wiper Goes to Midscale (Position 64)
MAX5439 Typical Application
·LCD Screen Contrast Adjustment
·Data-Acquisition Systems
·Mechanical Potentiometer Replacement
·Low-Drift Programmable Gain Amplifier
·Audio Volume Control
·Data-Acquisition Systems
·Mechanical Potentiometer Replacement
·Low-Drift Programmable Gain Amplifier
·Audio Volume Control
MAX5439 Connection Diagram
MAX5439
PDF/DataSheet Download
- Datasheet: MAX5439
- File Size: 365325 KB
- Manufacturer: Maxim
- Click here to Download
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