Digital Thermometer, Nsoic-8; Sensor Output Type:Digital; Accuracy:± 0.5°C; Sensor Case/Package:Soic; No. Of Pins:8Pins; Supply Voltage Min:2.7V; Supply Voltage Max:5.5V; No. Of Channels:-; Resolution:12 Bits; Output Interface:I2C Rohs Compliant: Yes |Analog Devices DS1621S+

DS1621S+ – Digital Thermometer with I2C Interface – Analog Devices

Optimize your thermal management systems with the DS1621S+ digital thermometer from Analog Devices. This high-accuracy, low-power sensor delivers precise temperature monitoring via I2C interface, ideal for space-constrained applications. PCX ensures authentic Analog Devices components with same-day shipping and dedicated technical support.

Key Features

• Resolution: 9-bit digital output
• Accuracy: ±0.5°C (0°C to 70°C)
• Wide Temperature Range: -55°C to +125°C
• Low Voltage Operation: 2.7V to 5.5V supply
• Interface: I2C-compatible serial communication
• Package: 8-SOIC surface-mount (3.90mm width)

Technical Details

The DS1621S+ provides digital temperature readings without external components, featuring One-Shot conversion mode for power savings and programmable nonvolatile temperature settings. Its 12-bit core enables 0.0625°C resolution (factory-calibrated to 9-bit output). The sensor operates across industrial temperature ranges (-55°C to +125°C) with ±2°C accuracy at extremes. Integrated standby mode reduces current draw to 1μA during idle periods.

Typical Applications

• Industrial process control systems
• Medical diagnostic equipment
• Server/PC thermal monitoring
• HVAC controllers
• Portable battery-powered devices

About Analog Devices

Analog Devices Inc. (ADI) stands at the forefront of high-performance semiconductor technology, with over 50 years of innovation in data conversion and signal processing. Their acquisition of Maxim Integrated further strengthened their portfolio in precision sensing solutions.

ADI components are renowned for rigorous quality standards, military-grade reliability, and industry-leading low-power performance. As a trusted NASA and automotive supplier, their designs undergo exhaustive validation for critical environments. PCX partners directly with ADI to deliver certified authentic components with full traceability.

About Digital Temperature Sensors

Digital thermometers like the DS1621S+ convert thermal measurements into direct digital outputs, eliminating analog signal conditioning circuits. This simplifies design integration while improving noise immunity compared to analog sensors.

Modern digital temperature ICs enable real-time system health monitoring in electronics, industrial controls, and IoT devices. Key advantages include programmable alert thresholds, low power consumption, and direct microcontroller interfacing. Their compact packages make them essential for thermally sensitive applications where board space is constrained.

Packaging Options

Available in protective Tube packaging for automated assembly. Contact PCX for reel quantity options and kitting services.

Frequently Asked Questions

Q: What is the conversion time for temperature readings?
A: Typical conversion time is 500ms in 9-bit mode. One-Shot mode allows single conversions to minimize power consumption.

Q: Does this support daisy-chaining multiple sensors?
A: Yes, three address pins allow up to eight DS1621S+ devices on the same I2C bus (address range 0x48-0x4F).

Q: Is nonvolatile storage included?
A: Yes, EEPROM stores high/low alarm thresholds and configuration settings during power loss.

Q: Can it directly drive cooling fans?
A: The integrated alarm output (T_OUT pin) can control external circuitry but requires a driver for high-current loads.

Q: How does accuracy vary across the temperature range?
A: Accuracy is ±0.5°C from 0°C to 70°C, ±1°C from -10°C to 85°C, and ±2°C at full range extremes.

Q: Are evaluation boards available?
A: PCX provides access to manufacturer evaluation kits – contact our technical support for details.

Order Today for Fast Delivery!

Ensure reliable temperature monitoring in your next project. PCX stocks genuine DS1621S+ sensors with guaranteed same-day shipping and datasheet support. Order now to secure inventory!

Product images are representational. Refer to datasheet for exact specifications. Datasheet available at PCXCo.com.