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Description
MAXIM INTEGRATED PRODUCTS MAX5438EUB+ Volatile Digital Potentiometer, Low Drift, 100 kohm, Single, SPI, Linear, ± 25%, 10 VThe MAX5438EUB+ is a 15V low drift digital potentiometer in 10 pin MAX package. This device is a single 128 position high voltage digital potentiometer which performs the same function as mechanical potentiometer but replace the mechanics with a simple digital interface. The resistor string uses its own analogue supplies (VDD and VSS) that require VDD VSS to be greater than 9V and less than 31. 5V which allows for greater flexibility in voltage ranges
The MAX5438EUB+ is a ±15V low drift digital potentiometer in 10 pin µMAX package. This device is a single 128 position high voltage digital potentiometer which performs the same function as mechanical potentiometer but replace the mechanics with a simple digital interface. The resistor string uses its own analogue supplies (VDD and VSS) that require VDD - VSS to be greater than 9V and less than 31.5V which allows for greater flexibility in voltage ranges that can be used with the device.
- Supply voltage range is 10V to 30V (single supply operation)
- 28V to -10V single negative supply operation
- ±5V to ±15V dual supply operation
- Operating temperature range from -40°C to 85°C
- Power-on reset, wiper goes to midscale (position 64)
- Ratiometric temperature coefficient of 5ppm/°C
- End to end resistance is 100Kohm at ±25% tolerance and temperature coefficient is 35ppm/°C
- Glitchless switching between resistor taps
- 3-wire SPI/QSPI/MICROWIRE compatible serial interface
Applications
Power Management
- :
- -40°C
- :
- 128
- :
- 85°C
- :
- SPI
- :
- 10Pins
- :
- ± 25%
- :
- Single
- :
- Single 128-Tap Volatile Digital Pots
- :
- -
- :
- Linear
- :
- 100kohm
- :
- 35ppm/°C
- :
- 10V
- :
- Each
- :
- 30V
- :
- µMAX
- :
- MSL 1 - Unlimited
Product details
| Operating Temperature Min | -40°C |
| No. of Steps | 128 |
| Operating Temperature Max | 85°C |
| Control Interface | SPI |
| No. of Pins | 10Pins |
| Resistance Tolerance | ± 25% |
| No. of Pots | Single |
| Product Range | Single 128-Tap Volatile Digital Pots |
| Automotive Qualification Standard | - |
| Track Taper | Linear |
| End To End Resistance | 100kohm |
| Temperature Coefficient | 35ppm/°C |
| Supply Voltage Min | 10V |
| Packaging | Each |
| Supply Voltage Max | 30V |
| Potentiometer IC Case Style | µMAX |
| MSL | MSL 1 - Unlimited |
Other details
| Brand | MAXIM INTEGRATED PRODUCTS |
| Part Number | MAX5438EUB+ |
| Quantity | Each |
| Technical Data Sheet EN |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
The only one I'll use!
As the title says, this is the brand to get!! It's fast-acting, doesn't give me weird dreams like some do, and I never wake up feeling groggy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2025
★★★★★ 5
Works wonders
I've been buying these for well over a year now as Subscribe and Save. I work 12 hour overnights as a nurse. My sleep schedule normally gets messed up. I would have no problem falling asleep but would wake up only a few hours later which is not good when you have work again that night. We buy these on Amazon due to the great price and the fact that they are extended release which helps keep me asleep longer. When I take 1 or 2 of them, I am able to sleep about 7-8 hours which is great. I take this both when I sleep during the day and sleep during the night. It helps me sleep no matter when and I am able to adjust my sleep schedule often. I have recommended them to many.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 10, 2013
★★★★★ 4
Works quite well, dose still a bit high for me
Used to take the Natrol 5mg slow release, now that I can compare these 2, I love this more. It doesn't make me feel too edgy, it's quite relaxing actually. I still have to halve the dose as the full dose makes me groggy the next day. Where the Natrol gave me very vivid, but not unpleasant dreams, these don't make me dream as vividly. It does take a bit longer to get me to sleep, but once asleep, your asleep. Highly recommend, once I finish this bottle, I'd get the 2mg tr next time, as a lower dose works better for me.
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Reviewed in the United States on July 10, 2014
★★★★★ 5
Excelente Muy Satisfecho
Servicio excepcional, cuidadoso, el producto muy bien empacado. Y el tiempo de entrega fue el acordado. Y del producto ni hablar, excelente.
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Reviewed in the United States on February 3, 2026
★★★★★ 5
seems to work just fine
Helps me sleep. I also use Mg, B complex and medical cannabis oil before bed. My sleep isn't great otherwise here in the good ol' USA (unlike in Europe where I sometimes go for complicated issues/not vacation; which indicates issues with the much higher radiofrequency exposure allowed in the US than in the European country where I sleep like a happy baby). Just wait for 5G, then I probably need to reinvent my sleep protocol if I want to get any rest. But well, with the 5G impact on the biosphere, we may not be here much longer then. That means we better stop 5G before it's all roleld out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 2, 2019
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