Product Summary

The DS7505 is a low-voltage (1.7V to 3.7V) digital thermometer and thermostat. The DS7505 provides 9-, 10-, 11-, or 12-bit digital temperature readings over a -55℃ to +125℃ range with ±0.5℃ accuracy over a -0 ℃to +70 ℃ range. A 9-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. The applications of the DS7505 include Networking Equipment, Cellular Base Stations, Office Equipment, Medical Equipment, Any Thermally Sensitive System.

Parametrics

DS7505 absolute maximum ratings: (1)Voltage Range on VDD Relative to Ground: -0.3V to +4.0V; (2)Voltage Range on Any Other Pin, Relative to Ground: -0.3V to +6.0V; (3)Operating Temperature Range: -55℃ to +125℃; (4)Storage Temperature Range: -55℃ to +125℃; (5)Soldering Temperature: Refer to the IPC/JEDEC, J-STD-020 Specification.

Features

DS7505 features: (1)Operating Range from 1.7V to 3.7V; (2)Temperature Measurements Require No External Components; (3)Measures Temperatures from -55℃ to +125℃; (4)±0.5°C Accuracy Over a 0℃ to +70℃ Range; (5)Thermometer Resolution is User-Configurable from 9 (Default) to 12 Bits (0.5℃ to 0.0625℃ Resolution); (6)9-Bit Conversion Time is 25ms (max); (7)Thermostatic Settings are User-Definable and Nonvolatile (NV); (8)Stand-Alone Thermostat Capability; (9)Data Read/Write Occurs Through a 2-Wire Serial Interface (SDA and SCL Pins); (10)Data Lines Filtered Internally for Noise Immunity (50ns Deglitch); (11)Optional Bus Timeout Feature Prevents Lockup Problems on 2-Wire Interface; (12)Multidrop Capability Simplifies Distributed Temperature-Sensing Applications; (13)Pin/Software Compatible with the LM75; (14)Available in 8-Pin SO and μMAX Packages.

Diagrams

DS7505 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
DS7505S+
DS7505S+

Maxim Integrated Products

Board Mount Temperature Sensors Thermometer & Thermostat

Data Sheet

0-1: $2.63
1-25: $1.75
25-50: $1.10
50-100: $1.07
DS7505S+T&R
DS7505S+T&R

Maxim Integrated Products

Board Mount Temperature Sensors Thermometer & Thermostat

Data Sheet

0-1990: $0.95
1990-2500: $0.95
DS7505U+
DS7505U+

Maxim Integrated Products

Board Mount Temperature Sensors Thermometer & Thermostat

Data Sheet

0-1: $2.56
1-25: $1.72
25-50: $1.10
50-100: $1.09
DS7505U+T&R
DS7505U+T&R

Maxim Integrated Products

Board Mount Temperature Sensors Thermometer & Thermostat

Data Sheet

0-2380: $0.95
2380-3000: $0.95