MAX6627
Remote ±1°C Accurate Digital Temperature Sensors with SPI-Compatible Serial Interface
First Remote SPI-Compatible Temperature Sensors in SOT Packages ±1°C Accurate with 12-Bit +0.0625°C Resolution
Top
Overview
Features and Benefits
- Accuracy
- ±1°C (max) from 0°C ≤ TRJ ≤ +125°C, TA = +30°C
- ±2.4°C (max) from -55°C ≤ TRJ ≤ +100°C,
- 0°C ≤ TA ≤ +70°C
- 12-Bit + Sign, 0.0625°C Resolution
- Low Power Consumption
- 30µA (typ) (MAX6628)
- 200µA (typ) (MAX6627)
- Operating Temperature Range (-55°C to +125°C)
- Measurement Temperature Range, Remote Junction (-55°C to +145°C)
- 0.5s (MAX6627) or 8s (MAX6628) Conversion Rate
- SPI-Compatible Interface
- +3.0V to +5.5V Supply Range
- 8-Pin SOT23 and TDFN Packages
- Lead-Free Version Available (TDFN Package)
Product Details
The MAX6627/MAX6628 precise digital temperature sensors report the temperature of a remote sensor. The remote sensor is a diode-connected transistor, typically a low-cost, easily mounted 2N3904 NPN type that replaces conventional thermistors or thermocouples. The MAX6627/MAX6628 can also measure the die temperature of other ICs, such as microprocessors (µPs) or microcontrollers (µCs) that contain an on-chip, diode-connected transistor.
Remote accuracy is ±1°C when the temperature of the remote diode is between 0°C and +125°C and the temperature of the MAX6627/MAX6628 is +30°C. The temperature is converted to a 12-bit + sign word with 0.0625°C resolution. The architecture of the device is capable of interpreting data as high as +145°C from the remote sensor. The MAX6627/MAX6628 temperature should never exceed +125°C.
These sensors are 3-wire serial interface SPI-compatible, allowing the MAX6627/MAX6628 to be readily connected to a variety of µCs. The MAX6627/MAX6628 are read-only devices, simplifying their use in systems where only temperature data is required.
Two conversion rates are available, one that continuously converts data every 0.5s (MAX6627), and one that converts data every 8s (MAX6628). The slower version provides minimal power consumption under all operating conditions (30µA, typ). Either device can be read at any time and provide the data from the last conversion.
Both devices operate with supply voltages between +3.0V and +5.5V, are specified between -55°C and +125°C, and come in space-saving 8-pin SOT23 and lead-free TDFN packages.
Applications
- Hard Disk Drive
- Industrial Control Systems
- Notebooks, PCs
- Smart Battery Packs/Chargers
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
Product Recommendations
MAX6627 Companion Parts
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX6627MKA+ | Material Declaration | Reliability Data | 8-SOT_23-N/A | |
| MAX6627MKA+T | Material Declaration | Reliability Data | 8-SOT_23-N/A | |
| MAX6627MTA+ | Material Declaration | Reliability Data | Thin Dual Flatpack No Leads, Exposed Pad | |
| MAX6627MTA+T | Material Declaration | Reliability Data | Thin Dual Flatpack No Leads, Exposed Pad | |
| Wafer Fabrication Data | MAX6627 Reliability Data |
Support & Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.