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Maxim Integrated Components
6 part numbers available · Sourced from Maxim Integrated authorized distribution · C-of-C and lot traceability on every shipment
Founded: 1983 · HQ: San Jose, California, USA
Maxim Integrated was one of Silicon Valley's most respected analog and mixed-signal design houses, founded in 1983 and headquartered in San Jose, California until its acquisition by Analog Devices in August 2021. Maxim's catalog parts remain industry standards decades after introduction: the DS1307 real-time clock and DS18B20 1-Wire digital temperature sensor are fixtures in datalogging and HVAC projects, the MAX232 and MAX485 defined RS-232 and RS-485 serial interfacing for generations of embedded engineers, the MAX31855 is the go-to cold-junction-compensated thermocouple-to-digital converter, and the MAX7219 drives 8-digit LED displays and 64-LED matrices from a single 3-wire serial bus. Under ADI, the Maxim part numbers, pinouts and datasheets continue unchanged, with packaging gradually transitioning to ADI branding. Our Shenzhen warehouse stocks Maxim/ADI's highest-volume legacy parts — DS1307, MAX232, MAX485, DS18B20, MAX31855 and MAX7219 — from ADI authorized distribution with full lot traceability.
Available Maxim Integrated Parts
Sourcing from Maxim Integrated – FAQ
Maxim was acquired by Analog Devices — are DS1307 and MAX485 still in production?
Yes. ADI completed the Maxim acquisition in August 2021 and continues the Maxim product lines under their original part numbers — DS1307, MAX232, MAX485, DS18B20, MAX31855 and MAX7219 all remain Active in ADI's catalog. Silicon, pinouts and datasheets are unchanged; only the corporate branding on tape labels and part markings has been transitioning from Maxim to ADI since 2022. Both Maxim-era and ADI-era markings are genuine depending on production date.
Is the DS18B20 counterfeit-prone?
Extremely — the DS18B20 is one of the most counterfeited sensors in the world because of its simple TO-92 package and strong demand from hobby and industrial markets. Common frauds include relabeled lower-grade dies, probes with wrong temperature calibration, and units that fail in parasitic-power mode. We verify every lot by reading the 1-Wire ROM family code (genuine DS18B20 returns 0x28), confirming 12-bit conversion and programmable resolution, and measuring accuracy against a calibrated reference across 0-85 °C.
What is the difference between DS1307 and DS3231 for timekeeping?
The DS1307 is a basic I²C RTC that relies on an external 32.768 kHz crystal, so its accuracy tracks the crystal — typically ±20 ppm, or 1-2 seconds per day, worsening with temperature. The DS3231 integrates a temperature-compensated crystal oscillator (TCXO) on-die, holding ±2 ppm (about ±1 minute per year) across 0-40 °C. For battery-backed dataloggers and clocks where drift matters, use the DS3231; for cost-sensitive designs that resync via NTP or GPS, the DS1307 is sufficient.
What is the lead time for Maxim/ADI interface parts?
ADI authorized channel currently quotes 12-20 weeks for legacy Maxim parts, with periodic allocation on high-demand SKUs like MAX485 and DS18B20. Our Shenzhen warehouse holds stock of all six parts we list for 1-3 day shipment on quantities under 5,000 pcs.
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