MAX1452

Low-Cost Precision Sensor Signal Conditioner

Low-Cost, Precision Sensor Signal Conditioner


Please check latest availability status for a specific part variant.

Description

The MAX1452 is a highly integrated analog-sensor signal processor optimized for industrial and process control applications utilizing resistive element sensors. The MAX1452 provides amplification, calibration, and temperature compensation that enables an overall performance 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 interchangeable.

The MAX1452 architecture includes a programmable sensor excitation, a 16-step programmable-gain amplifier (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 temperature compensation strategy for offset TC and FSOTC that was developed to provide a remarkable degree of flexibility while minimizing testing costs.

The MAX1452 is packaged for the commercial, industrial, and automotive temperature ranges in 16-pin SSOP/TSSOP and 24-pin TQFN packages.

FAQs: MAX1452/5 FAQs: MAX1452/5
MAX1452: Functional Diagram MAX1452: Functional Diagram Enlarge+

Key Features

  • Single-Chip, Integrated Analog Signal Path Reduces Design Time and Saves Space in a Complete Precision Sensor Solution
    • Provides Amplification, Calibration, and Temperature Compensation
    • Fully Analog Signal Path
    • Accommodates Sensor Output Sensitivities from 4mV/V to 60mV/V
    • Single-Pin Digital Programming
    • No External Trim Components Required
    • 16-Bit Offset and Span Calibration Resolution
    • Supports Both Current and Voltage Bridge Excitation
    • Fast 150µs Step Response
    • On-Chip Uncommitted Op Amp
  • On-Chip Lookup Table Supports Multipoint Calibration Temperature Correction Improving System Performance
  • Secure-Lock™ Prevents Data Corruption
  • Low 2mA Current Consumption Simplifies Power-Supply Design in 4–20mA Applications

Applications/Uses

  • Accelerometers
  • Humidity Sensors
  • Pressure Calibrators and Controllers
  • Pressure Sensors
  • Resistive Elements Sensors
  • Strain Gauges
  • Transducers and Transmitters
Part NumberSensing ElementPGA GainCalibration MethodAccuracy
(%FSO)
Output TypeICC
(mA)
IBRIDGE
(mA)
DACs/ADCsVSUPPLY
(V)
Package/PinsBudgetary
Price
maxtypSee Notes
MAX1452 Strain Gauge39 to 234 (16 gains)Internal DACs updated from internal EEPROM0.1Analog20.5 to 2.016-bit DAC4.5 to 5.5
SSOP/16
TQFN/24
$9.42 @1k
See All Sensor Signal Conditioners (10)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Technical Documents

Tutorial 4699 Overview of Sensor Signal Paths
Tutorial 4688 Introduction to Spirometers and Important Design Considerations for Selecting Electrical Components
App Note 4207 Making the MAX1452/MAX1455 Signal Conditioners Tolerant of Supply Limitations
App Note 4067 Using the MAX1452 for Remote-Sensor Compensation
App Note 4022 MAX1452 Nonlinearity-Correction Application Circuit
App Note 3972 MAX1452/MAX1455 FAQs
App Note 3733 Startup Requirements for the MAX1452/MAX1455 Sensor Signal Conditioners
App Note 3396 Driving Strain-Gauge Bridge Sensors with Signal-Conditioning ICs
App Note 3044 Calibration of Weight Sensors Using Dead Weights
Tutorial 1860 PWM Outputs Enhance Sensor Signal Conditioners
Tutorial 1839 Sensor Temperature Compensation Using the Four DAC Signal Conditioning Architecture
App Note 1152 Step-by-Step Procedure for Performing Temperature Compensation Using MAX1452 and MAX1455 Evaluation Kit Software
App Note 1150 Direct Interface of the MAX1452/MAX1455 with the MAX1452/MAX1455 Communication Board
App Note 1069 High-Gain Signal Conditioning Circuit for Thin and Thick Film Sensors
App Note 884 Miniature Flow Sensor Has Electronic Temperature Compensation
App Note 871 Demystifying Piezoresistive Pressure Sensors
App Note 839 MAX1452 Diagnostic Clip Circuit
Tutorial 762 Design and Manufacture of Automotive Pressure Sensors
App Note 760 Overvoltage Protection in Automotive Systems
App Note 759 Adding Diagnostic Capability to MAX14XX Low Cost High Performance Signal-Conditioning Devices
App Note 753 MAX1452 Serial Communications
App Note 695 New ICs Revolutionize The Sensor Interface
App Note 637 Tech Tips: Getting the Most from Your Sensor and Conditioning Electronics

Quality and Environmental Data

Product Reliability Reports: MAX1452.pdf 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

 
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Related Resources

Type ID PDF Title
Tutorial 4699 Overview of Sensor Signal Paths
Tutorial 4688 Introduction to Spirometers and Important Design Considerations for Selecting Electrical Components
App Note 4207 Making the MAX1452/MAX1455 Signal Conditioners Tolerant of Supply Limitations
App Note 4067 Using the MAX1452 for Remote-Sensor Compensation
App Note 4022 MAX1452 Nonlinearity-Correction Application Circuit
App Note 3972 MAX1452/MAX1455 FAQs
App Note 3733 Startup Requirements for the MAX1452/MAX1455 Sensor Signal Conditioners
App Note 3396 Driving Strain-Gauge Bridge Sensors with Signal-Conditioning ICs
App Note 3044 Calibration of Weight Sensors Using Dead Weights
Tutorial 1860 PWM Outputs Enhance Sensor Signal Conditioners
Tutorial 1839 Sensor Temperature Compensation Using the Four DAC Signal Conditioning Architecture
App Note 1152 Step-by-Step Procedure for Performing Temperature Compensation Using MAX1452 and MAX1455 Evaluation Kit Software
App Note 1150 Direct Interface of the MAX1452/MAX1455 with the MAX1452/MAX1455 Communication Board
App Note 1069 High-Gain Signal Conditioning Circuit for Thin and Thick Film Sensors
App Note 884 Miniature Flow Sensor Has Electronic Temperature Compensation
App Note 871 Demystifying Piezoresistive Pressure Sensors
App Note 839 MAX1452 Diagnostic Clip Circuit
Tutorial 762 Design and Manufacture of Automotive Pressure Sensors
App Note 760 Overvoltage Protection in Automotive Systems
App Note 759 Adding Diagnostic Capability to MAX14XX Low Cost High Performance Signal-Conditioning Devices
App Note 753 MAX1452 Serial Communications
App Note 695 New ICs Revolutionize The Sensor Interface
App Note 637 Tech Tips: Getting the Most from Your Sensor and Conditioning Electronics

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