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MAX6627MTA+T

更新时间: 2024-09-25 03:09:23
品牌 Logo 应用领域
美信 - MAXIM 传感器温度传感器
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11页 422K
描述
Remote 【1∑C Accurate Digital Temperature Sensors with SPI-Compatible Serial Interface

MAX6627MTA+T 数据手册

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19-2032; Rev 3; 4/06  
Remote ±±1° Accurate Diꢀital emperature  
Sensors with SPI-°ompatible Serial Interface  
General Description  
Features  
Accuracy  
±±1° ꢀ(aꢁx ꢂrꢃ( ꢄ1° T +±251°, T = +3ꢄ1°  
The MAX6627/MAX6628 precise digital temperature  
sensors report the temperature of a remote sensor. The  
remote sensor is a diode-connected transistor, typically  
a low-cost, easily mounted 2N3904 NPN type that  
replaces conventional thermistors or thermocouples.  
The MAX6627/MAX6628 can also measure the die tem-  
perature of other ICs, such as microprocessors (µPs) or  
microcontrollers (µCs) that contain an on-chip, diode-  
connected transistor.  
RJ  
A
±2ꢅ.1° ꢀ(aꢁx ꢂrꢃ( ꢆ551° T +±ꢄꢄ1°,  
RJ  
ꢄ1° T +7ꢄ1°  
A
±2ꢆBit + Sign, ꢄꢅꢄ6251° Resꢃlutiꢃn  
Lꢃw Pꢃwer °ꢃnsu(ptiꢃn  
3ꢄµA ꢀtypx ꢀMAX6628x  
2ꢄꢄµA ꢀtypx ꢀMAX6627x  
Operating Te(perature Range ꢀꢆ551° tꢃ +±251°x  
Measure(ent Te(perature Range, Re(ꢃte  
Remote accuracy is ±±1C when the temperature of the  
remote diode is between 01C and +±251C and the tem-  
perature of the MAX6627/MAX6628 is +301C. The tem-  
perature is converted to a ±2-bit + sign word with  
0.06251C resolution. The architecture of the device is  
capable of interpreting data as high as +±451C from  
the remote sensor. The MAX6627/MAX6628 tempera-  
ture should never exceed +±251C.  
Junctiꢃn ꢀꢆ551° tꢃ +±.51°x  
ꢄꢅ5s ꢀMAX6627x ꢃr 8s ꢀMAX6628x °ꢃnversiꢃn Rate  
SPIꢆ°ꢃ(patible Interꢂace  
+3ꢅꢄV tꢃ +5ꢅ5V Supply Range  
8ꢆPin SOT23 and TDFN Packages  
LeadꢆFree Versiꢃn Available ꢀTDFN Packagex  
These sensors are 3-wire serial interface SPI™ compat-  
ible, allowing the MAX6627/MAX6628 to be readily con-  
nected to a variety of µCs. The MAX6627/MAX6628 are  
read-only devices, simplifying their use in systems  
where only temperature data is required.  
Orderinꢀ Information  
PINꢆ  
TOP  
PKG  
PART  
PA°KAGE  
MARK  
°ODE  
MAX6627MKA-T  
MAX6627MTA+T  
MAX6628MKA-T  
MAX6628MTA+T  
8 SOT23-8  
8 TDFN  
AAEQ  
+AUT  
AAER  
+AUU  
K8F-4  
T833-2  
K8F-4  
Two conversion rates are available, one that continu-  
ously converts data every 0.5s (MAX6627), and one  
that converts data every 8s (MAX6628). The slower ver-  
sion provides minimal power consumption under all  
operating conditions (30µA, typ). Either device can be  
read at any time and provide the data from the last con-  
version.  
8 SOT23-8  
8 TDFN  
T833-2  
Note: All devices are specified over the -55°C to +125°C oper-  
ating temperature range.  
+Denotes lead-free package.  
Both devices operate with supply voltages between  
+3.0V and +5.5V, are specified between -551C and  
+±251C, and come in space-saving 8-pin SOT23 and  
lead-free TDFN packages.  
ypical Operatinꢀ °ircuit  
+ 3V TO + 5.5V  
0.1µF  
Applications  
Hard Disk Drive  
V
GND  
CC  
Smart Battery Packs  
Automotive  
MAX6627  
MAX6628  
Industrial Control Systems  
Notebooks, PCs  
SDO  
2200pF  
2200pF  
DXP  
DXN  
µC  
CS  
SCK  
SPI is a trademark of Motorola, Inc.  
Pin Configurations appears at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
±
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  

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