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Analog Devices DS1620S+ — Discrete Semiconductors
Analog Devices

DS1620S+ Digital Temperature Sensor, ±0.5°C Accuracy, 8-SOIC

MPNDS1620S+
End of Life

Maxim Integrated DS1620S+, Digital Temperature Sensor, Local, 9-bit Resolution, 3-Wire (CLK, DQ, RST) Interface, ±0.5°C Accuracy, -55°C to 125°C Range, 2.7V to 5.5V Supply, 8-SOIC Package, Tube.

$14.17Ref. price · indicative, final on quote
DS1620S+ datasheet
Packaging8-SOIC (0.209", 5.30mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

DS1620S+ Technical Specifications
ParameterValue
Output type3-Wire (CLK, DQ, RST)
Sensor typeDigital, Local
Mounting typeSurface Mount
Voltage2.7V ~ 5.5V
Operating temperature-55°C ~ 125°C
PackageTube
FeaturesOne-Shot, Output Switch
Resolution9 b
Case8-SOIC (0.209\", 5.30mm Width)
Test condition0°C ~ 70°C (-55°C ~ 125°C)
Accuracy - highest (Lowest)±0.5°C (±2°C)
Sensing temperature - local-55°C ~ 125°C

Product details

What the DS1620S+ is and where it fits

The Maxim Integrated DS1620S+ is a digital temperature sensor IC that measures local ambient temperature and outputs the result over a 3-wire serial interface (CLK, DQ, RST). Rated for the full -55°C to 125°C operating range, it suits environmental monitoring in industrial controllers, telecom enclosures, and automotive cabin or under-hood zones where the extended temperature grade matters. The 9-bit resolution gives 0.5°C steps, and the typical accuracy of ±0.5°C at 0°C to 70°C (worst-case ±2°C across the full range) is tight enough for most system thermal management loops without external calibration.

Package and mounting

8-pin SOIC (0.209" body width, 5.30 mm wide), surface-mount. Tube shipment.

Lifecycle and sourcing

No second-source alternate is listed.

Frequently asked questions

What is the accuracy of DS1620S+?

Typical accuracy is ±0.5°C from 0°C to 70°C, with a worst-case limit of ±2°C across the full -55°C to 125°C range.

Can DS1620S+ operate at 3.3V?

Yes, the supply range of 2.7V to 5.5V covers both 3.3V and 5V rails directly.

How to interface DS1620S+ with a microcontroller?

The 3-wire interface uses RST (chip select), CLK (clock), and DQ (data). The protocol matches the classic DS1620: pull RST high, clock in a command byte, then read or write data bits on DQ. Many open-source Arduino and MCU libraries exist for the DS1620 family.