General Description
●The DS7505 low-voltage (1.7V to 3.7V) digital ther mometer and thermostat provides 9-, 10-, 11-, or 12-bit
●digital temperature readings over a -55°C to +125°C range with ±0.5°C accuracy over a -0°C to +70°C range.
●A9-bit resolution mode is software compatible with the LM75. Communication with the DS7505 is achieved
●through a simple 2-wire serial interface. Three address pins allow up to eight DS7505 devices to operate on the
●same 2-wire bus, which greatly simplifies distributed temperature-sensing applications.
●Features
●♦Operating Range from 1.7V to 3.7V
●♦Temperature Measurements Require No Externa Components
●♦Measures Temperatures from -55°C to +125°C (-67°F to +257°F)
●♦±0.5°C Accuracy Over a 0°C to +70°C Range
●♦Thermometer Resolution is User-Configurable from 9 (Default) to 12 Bits (0.5°C to 0.0625°C Resolution)
●♦9-Bit Conversion Time is 25ms (max)
●♦Thermostatic Settings are User-Definable and Nonvolatile (NV)
●♦Stand-Alone Thermostat Capability
●♦Data Read/Write Occurs Through a 2-Wire Serial Interface (SDA and SCL Pins)
●♦Data Lines Filtered Internally for Noise Immunity (50ns Deglitch)
●♦Optional Bus Timeout Feature Prevents Lockup Problems on 2-Wire Interface
●♦Multidrop Capability Simplifies Distributed Temperature-Sensing Applications
●♦Pin/Software Compatible with the LM75 Available in 8-Pin SO and µMAX®Packages
●Applications
●Networking Equipment
●Cellular Base Stations
●Office Equipment
●Medical Equipment
●Any Thermally Sensitive System
