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參數(shù)資料
| 型號： | DS7505U+T&R |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 197K |
| 描述： | IC DGTL THERMOMETER 2WIRE 8-USOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 3,000 |
| 功能： | 溫度計(jì)，恒溫計(jì) |
| 傳感器類型： | 內(nèi)部 |
| 感應(yīng)溫度： | -55°C ~ 125°C |
| 精確度： | ±2°C（最小值） |
| 拓?fù)洌?/td> | ADC（三角積分型），比較器，寄存器庫 |
| 輸出類型： | I²C?/SMBus? |
| 輸出警報(bào)： | 無 |
| 輸出風(fēng)扇： | 無 |
| 電源電壓： | 1.7 V ~ 3.7 V |
| 工作溫度： | -55°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-uMAX |
| 包裝： | 帶卷 (TR) |
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癈 to +125癈
range with ?.5癈 accuracy over a -0癈 to +70癈 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 DS7505 thermostat has a dedicated open-drain out-
put (O.S.) and programmable fault tolerance, which
allows the user to define the number of consecutive
error conditions that must occur before O.S. is activated.
There are two thermostatic operating modes that control
thermostat operation based on user-defined trip points
(T
OS
and T
HYST
) that are stored in EEPROM registers.
Applications
Networking Equipment
Cellular Base Stations
Office Equipment
Medical Equipment
Any Thermally Sensitive System
Features
f Operating Range from 1.7V to 3.7V
f Temperature Measurements Require No External
Components
f Measures Temperatures from -55?/SPAN>C to +125?/SPAN>C
(-67癋 to +257癋)
f ?/SPAN>0.5?/SPAN>C Accuracy Over a 0?/SPAN>C to +70?/SPAN>C Range
f Thermometer Resolution is User-Configurable
from 9 (Default) to 12 Bits (0.5癈 to 0.0625癈
Resolution)
f 9-Bit Conversion Time is 25ms (max)
f Thermostatic Settings are User-Definable and
Nonvolatile (NV)
f Stand-Alone Thermostat Capability
f Data Read/Write Occurs Through a 2-Wire Serial
Interface (SDA and SCL Pins)
f Data Lines Filtered Internally for Noise Immunity
(50ns Deglitch)
f Optional Bus Timeout Feature Prevents Lockup
Problems on 2-Wire Interface
f Multidrop Capability Simplifies Distributed
Temperature-Sensing Applications
f Pin/Software Compatible with the LM75
f Available in 8-Pin SO and ?/SPAN>MAX
?/DIV>
Packages
Digital Thermometer and Thermostat
________________________________________________________________ Maxim Integrated Products 1
SO
TOP VIEW
2
7 A0
SCL
1
8 VDD
SDA
A1
O.S. 3
6
A2
GND
4
5
DS7505
?SPAN class="pst DS7505U-T-R_2291765_7">MAX
2
7 A0
SCL
1
8 VDD
SDA
A1
O.S. 3
6
A2
GND 4
5
DS7505
Pin Configurations
Ordering Information
Rev 1; 3/08
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxims website at www.maxim-ic.com.
PART
TEMP RANGE
PIN-PACKAGE
DS7505S+
-55癈 to +125癈 8 SO (150 mils)
DS7505S+T&R -55癈 to +125癈
8 SO (150 mils),
2500-Piece T&R
DS7505U+
-55癈 to +125癈 8 糓AX
DS7505U+T&R -55癈 to +125癈
8 糓AX,
3000-Piece T&R
+Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
礛AX is a registered trademark of Maxim Integrated Products, Inc.
Commands are capitalized for clarity.
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