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MAX1452

更新时间： 2024-09-13 22:57:59
品牌 Logo 应用领域
美信 - MAXIM 传感器
页数 文件大小 规格书
24页 282K
描述
Low-Cost Precision Sensor Signal Conditioner

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MAX1452 数据手册

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19-1829; Rev 1; 6/01  
Low-Cost Precision Sensor  
Signal Conditioner  
General Description  
Features  
The MAX1452 is a highly integrated analog-sensor sig-  
nal processor optimized for industrial and process con-  
trol applications utilizing resistive element sensors.  
The MAX1452 provides amplification, calibration, and  
temperature compensation that enables an overall per-  
formance approaching the inherent repeatability of the  
sensor. The fully analog signal path introduces no  
quantization noise in the output signal while enabling  
digitally controlled trimming with the integrated 16-bit  
DACs. Offset and span are calibrated using 16-bit  
DACs, allowing sensor products to be truly inter-  
changeable.  
o Provides Amplification, Calibration, and  
Temperature Compensation  
o Accommodates Sensor Output Sensitivities  
from 1mV/V to 40mV/V  
o Single Pin Digital Programming  
o No External Trim Components Required  
o 16-Bit Offset and Span Calibration Resolution  
o Fully Analog Signal Path  
o On-Chip Lookup Table Supports Multipoint  
The MAX1452 architecture includes a programmable  
sensor excitation, a 16-step programmable-gain ampli-  
fier (PGA), a 768-byte (6144 bits) internal EEPROM,  
four 16-bit DACs, an uncommitted op amp, and an on-  
chip temperature sensor. In addition to offset and span  
compensation. The MAX1452 provides a unique tem-  
perature compensation strategy for offset TC and  
FSOTC that was developed to provide a remarkable  
degree of flexibility while minimizing testing costs.  
Calibration Temperature Correction  
o Supports Both Current and Voltage Bridge  
Excitation  
o Fast 3.2kHz Frequency Response  
o On-Chip Uncommitted Op Amp  
o Secure-Lock™ Prevents Data Corruption  
o Low 2mA Current Consumption  
The MAX1452 is packaged for the commercial, industri-  
al, and automotive temperature ranges in 16-pin SSOP  
packages.  
Ordering Information  
Customization  
PART  
TEMP. RANGE  
PIN-PACKAGE  
16 SSOP  
16 SSOP  
16 SSOP  
Dice*  
Maxim can customize the MAX1452 for high-volume  
dedicated applications. Using our dedicated cell library  
of more than 2000 sensor-specific functional blocks,  
Maxim can quickly provide a modified MAX1452 solu-  
tion. Contact Maxim for further information.  
MAX1452CAE  
MAX1452EAE  
MAX1452AAE  
MAX1452C/D  
0°C to +70°C  
-40°C to +85°C  
-40°C to +125°C  
0°C to +70°C  
*Dice are tested at T = +25°C, DC parameters only.  
A
Applications  
Pressure Sensors  
A detailed block diagram appears at the end of data sheet.  
Transducers and Transmitters  
Strain Gauges  
Pressure Calibrators and Controllers  
Resistive Elements Sensors  
Accelerometers  
Pin Configuration  
TOP VIEW  
ISRC  
OUT  
1
2
3
4
5
6
7
8
16 FSOTC  
15 AMP+  
14 AMP-  
Humidity Sensors  
V
SS  
Outputs Supported  
4–20mA  
0 to +5V (Rail-to-Rail®)  
+0.5V to +4.5V Ratiometric  
+2.5V to 2.5V  
INM  
BDR  
INP  
13 AMPOUT  
12 CLK1M  
11 DIO  
MAX1452  
(NOT TO SCALE)  
V
10 UNLOCK  
DD  
TEST  
9
V
DDF  
Rail-to-Rail is a trademark of Nippon Motorola Ltd.  
Secure-Lock is a trademark of Maxim Integrated Products.  
SSOP  
________________________________________________________________ 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...24

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