Specifications
| Attribute | Value |
| Supplier | Rochester Electronics, LLC,Analog Devices Inc./Maxim Integrated |
| Package / Case | Tube,Tube |
| Part Status | Obsolete |
| Sensor Type | Digital, Local |
| Sensing Temperature - Local | -55°C ~ 125°C |
| Output Type | I²C |
| Voltage - Supply | 2.7V ~ 5.5V |
| Resolution | 11 b |
| Features | One-Shot, Output Switch, Programmable Limit, Programmable Resolution, Standby Mode |
| Accuracy - Highest(Lowest) | ±0.5°C (±2°C) |
| Test Condition | 0°C ~ 70°C (-55°C ~ 125°C) |
| Operating Temperature | -55°C ~ 125°C |
| Mounting Type | Surface Mount |
Overview
Description
DS1631AU is Dallas/Maxim’s digital temperature sensor with a two‑wire I2C/SMBus interface. It provides ambient temperature readings as a digital value in a temperature register and supports low‑power operation suitable for embedded systems.
Key points:
- I2C-compatible interface; read temperature directly from a register
- Programmable resolution (9–12 bits) with data in Celsius
- Temperature range roughly -55°C to +125°C
- Programmable high/low temperature alarms with an alert/flag
- Low power: microamps in standby; operates on 2.7–5.5V
- Available in a compact package (AU variant indicates a specific package/grade)
Common uses: system thermal monitoring in PCs/embedded boards, battery packs, consumer and industrial equipment.
For exact electrical specs, timing, and the register map, refer to the DS1631AU datasheet.
Key points:
- I2C-compatible interface; read temperature directly from a register
- Programmable resolution (9–12 bits) with data in Celsius
- Temperature range roughly -55°C to +125°C
- Programmable high/low temperature alarms with an alert/flag
- Low power: microamps in standby; operates on 2.7–5.5V
- Available in a compact package (AU variant indicates a specific package/grade)
Common uses: system thermal monitoring in PCs/embedded boards, battery packs, consumer and industrial equipment.
For exact electrical specs, timing, and the register map, refer to the DS1631AU datasheet.
Features
DS1631AU features (concise):
- 8-pin AU package; digital temperature sensor with I2C-like two-wire interface.
- Temperature range: -40°C to +125°C.
- Programmable resolution: 9–12 bits (0.5°C to 0.0625°C steps).
- Supply voltage: typically 2.7–5.5 V; low power operation with standby option.
- Conversion modes: one-shot or continuous; programmable conversion rate.
- Temperature data in a 16-bit register; supports Celsius output.
- Programmable high/low temperature alarms with optional latch.
- Non-volatile memory to store configuration and alarm thresholds.
- Factory-calibrated; suitable for data loggers, HVAC, consumer electronics, and wearables.
- 8-pin AU package; digital temperature sensor with I2C-like two-wire interface.
- Temperature range: -40°C to +125°C.
- Programmable resolution: 9–12 bits (0.5°C to 0.0625°C steps).
- Supply voltage: typically 2.7–5.5 V; low power operation with standby option.
- Conversion modes: one-shot or continuous; programmable conversion rate.
- Temperature data in a 16-bit register; supports Celsius output.
- Programmable high/low temperature alarms with optional latch.
- Non-volatile memory to store configuration and alarm thresholds.
- Factory-calibrated; suitable for data loggers, HVAC, consumer electronics, and wearables.
Pinout
- Pin count: 8 pins (SOIC-8)
- Function: Digital temperature sensor/thermometer with an I2C-compatible two-wire serial interface (provides temperature data and optional alarm/thermostat features).
- Function: Digital temperature sensor/thermometer with an I2C-compatible two-wire serial interface (provides temperature data and optional alarm/thermostat features).
Manufacturer
- Manufacturer: Dallas Semiconductor Corp., a semiconductor company now part of Maxim Integrated Products (and Maxim is under Analog Devices).
- What kind of company: A semiconductor company that designs and manufactures integrated circuits (analog/digital ICs, sensors, etc.).
- What kind of company: A semiconductor company that designs and manufactures integrated circuits (analog/digital ICs, sensors, etc.).
Application
DS1631AU is a digital I2C thermometer used for temperature sensing with alarm features. Common applications include:
- Computer/server thermal management
- Battery packs and portable devices
- Automotive electronics and control modules
- Consumer electronics and home appliances
- Industrial instrumentation and monitoring
- HVAC and environmental sensing
- Data loggers and IoT sensors
- Medical devices requiring temperature measurement
- Smart cooling and safety/over‑temperature alarms
- Computer/server thermal management
- Battery packs and portable devices
- Automotive electronics and control modules
- Consumer electronics and home appliances
- Industrial instrumentation and monitoring
- HVAC and environmental sensing
- Data loggers and IoT sensors
- Medical devices requiring temperature measurement
- Smart cooling and safety/over‑temperature alarms
Package
DS1631AU is in an 8-pin small-outline (SOIC) surface-mount package.
