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MAX1254BEUE

更新时间： 2024-11-23 22:34:27
品牌 Logo 应用领域
美信 - MAXIM 传感器温度传感器监视器
页数 文件大小 规格书
29页 437K
描述
Stand-Alone, 10-Channel, 12-Bit System Monitors with Internal Temperature Sensor and VDD Monitor

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MAX1254BEUE 数据手册

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19-2838; Rev 0; 4/03  
Stand-Alone, 10-Channel, 12-Bit System Monitors  
with Internal Temperature Sensor and V Monitor  
DD  
General Description  
Features  
o Monitor 10 Signals Without Processor  
The MAX1253/MAX1254 are stand-alone, 10-channel (8  
external, 2 internal) 12-bit system monitor ADCs with  
internal reference. A programmable single-ended/dif-  
ferential mux accepts voltage and remote-diode tem-  
perature-sensor inputs. These devices independently  
monitor the input channels without microprocessor  
interaction and generate an interrupt when any variable  
exceeds user-defined limits. The MAX1253/MAX1254  
configure both high and low limits, as well as the num-  
ber of fault cycles allowed, before generating an inter-  
rupt. These ADCs can also perform recursive data  
averaging for noise reduction. Programmable wait inter-  
vals between conversion sequences allow the selection  
of the sample rate.  
Intervention  
o Eight External Channels Programmable as  
Temperature or Voltage Monitors  
o Intelligent Circuitry for Reliable Autonomous  
Measurement  
Programmable Digital Averaging Filter  
Programmable Fault Counter  
o Precision Measurements  
12-Bit Resolution  
1 ꢀSB IꢁꢀL 1 ꢀSB Dꢁꢀ  
0ꢂ.75C Temperature Accuracy ꢃtypꢄ  
o Flexible  
Automatic Channel Scan Sequencer with  
Programmable Intervals  
Programmable Inputs: Single Ended/DifferentialL  
Voltage/Temperature  
At the maximum sampling rate of 94ksps (auto mode,  
single channel enabled), the MAX1253 consumes only  
5mW (1.7mA at 3V). AutoShutdownTM reduces supply  
current to 190µA at 2ksps and to less than 8µA at 50sps.  
Programmable Wait State  
o Internal 2ꢂ7V/4ꢂ096V Reference  
ꢃMAX1273/MAX1274ꢄ  
Stand-alone operation, combined with ease of use in a  
small package (16-pin TSSOP), makes the MAX1253/  
MAX1254 ideal for multichannel system-monitoring  
applications. Low power consumption also makes  
these devices a good fit for hand-held and battery-pow-  
ered applications.  
o Remote Temperature Sensing Up to 10m  
ꢃDifferential Modeꢄ  
o Single 3V or 7V Supply Operation  
o Small 16-Pin TSSOP Package  
Applications  
Ordering Information  
System Supervision  
Remote Telecom Networks  
Server Farms  
PART  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
16 TSSOP  
MAX1253AEUE*  
MAX1253BEUE  
MAX1254AEUE*  
MAX1254BEUE  
16 TSSOP  
16 TSSOP  
Remote Data Loggers  
16 TSSOP  
*Future product—contact factory for availability.  
Selector Guide  
Pin Configuration  
TEMP  
SUPPLY  
TOP VIEW  
PART  
INL (LSB)  
ERROR (5C) VOLTAGE (V)  
AIN0  
CS  
1
2
3
4
5
6
7
8
16  
15  
1
1
1
1
1.0  
3.0  
1.0  
2.5  
MAX1253AEUE*  
MAX1253BEUE  
MAX1254AEUE*  
MAX1254BEUE  
2.7 to 3.6  
2.7 to 3.6  
4.5 to 5.5  
4.5 to 5.5  
AIN1  
AIN2  
AIN3  
AIN4  
AIN5  
AIN6  
AIN7  
SCLK  
14 DIN  
13  
MAX1253  
MAX1254  
V
DD  
12 GND  
11 DOUT  
10 INT  
*Future product—contact factory for availability.  
9
REF  
Typical Application Circuit appears at end of data sheet.  
16 TSSOP  
AutoShutdown is a trademark of Maxim Integrated Products, Inc.  
________________________________________________________________ Maxim Integrated Products  
1
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.  
1234567...29

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MAX1254BEUE 替代型号

型号 品牌 替代类型 描述 数据表
MAX1254BEUE-T MAXIM

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