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Low-Cost Precision Sensor Signal Conditioner

Product Details

Key Features

Applications/Uses

Parametric specs for Sensor Signal Conditioners
Sensing Element PRT
Resistive Bridge
Strain Gauge
PGA Gain 39 to 234 (16 gains)
Calibration Method Internal DACs updated from internal EEPROM
Accuracy (%FSO) (max) 0.1
Output Type Analog
ICC (mA) (typ) 3
IBRIDGE (mA) 0.5 to 2.0
DACs/ADCs 16-bit DAC
VSUPPLY (V) 4.5 to 5.5
Package/Pins SSOP/16
TSSOP/16
Budgetary
Price (See Notes)
2.2
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Simplified Block Diagram

Technical Docs

Data Sheet Low-Cost Precision Sensor Signal Conditioner Jul 24, 2014
App Note Tech Tips: Getting the Most from Your Sensor and Conditioning Electronics
App Note New ICs Revolutionize The Sensor Interface
App Note MAX1452 Serial Communications
App Note Adding Diagnostic Capability to MAX14XX Low Cost High Performance Signal-Conditioning Devices
App Note Overvoltage Protection in Automotive Systems
Tutorial Design and Manufacture of Automotive Pressure Sensors
App Note MAX1455 Diagnostic Clip Boost Circuit
App Note High-Gain Signal Conditioning Circuit for Thin and Thick Film Sensors
App Note Direct Interface of the MAX1452/MAX1455 with the MAX1452/MAX1455 Communication Board
App Note Step-by-Step Procedure for Performing Temperature Compensation Using MAX1452 and MAX1455 Evaluation Kit Software
Tutorial Sensor Temperature Compensation Using the Four DAC Signal Conditioning Architecture
Tutorial PWM Outputs Enhance Sensor Signal Conditioners
App Note Calibration of Weight Sensors Using Dead Weights
App Note Driving Strain-Gauge Bridge Sensors with Signal-Conditioning ICs
App Note Startup Requirements for the MAX1452/MAX1455 Sensor Signal Conditioners
App Note MAX1452/MAX1455 FAQs
App Note MAX1452 Nonlinearity-Correction Application Circuit
App Note Using the MAX1452 for Remote-Sensor Compensation
App Note Making the MAX1452/MAX1455 Signal Conditioners Tolerant of Supply Limitations
Reference Schematic Liquid-Level Measurement System Uses a Compensated Silicon Pressure Sensor and Precision Delta-Sigma ADCs, Part 1

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Parameters

Parametric specs for Sensor Signal Conditioners
Sensing Element PRT
Resistive Bridge
Strain Gauge
PGA Gain 39 to 234 (16 gains)
Calibration Method Internal DACs updated from internal EEPROM
Accuracy (%FSO) (max) 0.1
Output Type Analog
ICC (mA) (typ) 3
IBRIDGE (mA) 0.5 to 2.0
DACs/ADCs 16-bit DAC
VSUPPLY (V) 4.5 to 5.5
Package/Pins SSOP/16
TSSOP/16
Budgetary
Price (See Notes)
2.2

Key Features

  • Provides Amplification, Calibration, and Temperature Compensation
  • Selectable Output Clipping Limits
  • Accommodates Sensor Output Sensitivities from 5mV/V to 40mV/V
  • Single-Pin Digital Programming
  • No External Trim Components Required
  • 16-Bit Offset and Span Calibration Resolution
  • Fully Analog Signal Path
  • PRT Bridge Can Be Used for Temperature-Correction Input
  • On-Chip Lookup Table Supports Multipoint Calibration Temperature Correction
  • Fast 3.2kHz Frequency Response
  • On-Chip Uncommitted Op Amp
  • Secure-Lock™ Prevents Data Corruption

Applications/Uses

  • Accelerometer Measurements
  • Humidity Sensors
  • MR and GMR Sensors
  • Piezoresistive Silicon Sensors
  • Pressure Sensors and Transducers
  • Resistive Elements Sensors
  • Strain Gauges

Description

The MAX1455 is a highly integrated, sensor signal processor for resistive element sensors. The MAX1455 provides amplification, calibration, and temperature compensation that enable 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 integrated 16-bit digital-to-analog converters (DACs). Offset and span are also calibrated using 16-bit DACs, allowing sensor products to be truly interchangeable.

The MAX1455 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 MAX1455 provides a unique temperature compensation strategy that was developed to provide a remarkable degree of flexibility while minimizing testing costs.

The MAX1455 is available in die form, and in 16-pin SSOP and TSSOP packages.

FAQs: MAX1452/5

Simplified Block Diagram

MAX1455: Functional Diagram MAX1455: Functional Diagram Zoom icon

Technical Docs

Data Sheet Low-Cost Precision Sensor Signal Conditioner Jul 24, 2014
App Note Tech Tips: Getting the Most from Your Sensor and Conditioning Electronics
App Note New ICs Revolutionize The Sensor Interface
App Note MAX1452 Serial Communications
App Note Adding Diagnostic Capability to MAX14XX Low Cost High Performance Signal-Conditioning Devices
App Note Overvoltage Protection in Automotive Systems
Tutorial Design and Manufacture of Automotive Pressure Sensors
App Note MAX1455 Diagnostic Clip Boost Circuit
App Note High-Gain Signal Conditioning Circuit for Thin and Thick Film Sensors
App Note Direct Interface of the MAX1452/MAX1455 with the MAX1452/MAX1455 Communication Board
App Note Step-by-Step Procedure for Performing Temperature Compensation Using MAX1452 and MAX1455 Evaluation Kit Software
Tutorial Sensor Temperature Compensation Using the Four DAC Signal Conditioning Architecture
Tutorial PWM Outputs Enhance Sensor Signal Conditioners
App Note Calibration of Weight Sensors Using Dead Weights
App Note Driving Strain-Gauge Bridge Sensors with Signal-Conditioning ICs
App Note Startup Requirements for the MAX1452/MAX1455 Sensor Signal Conditioners
App Note MAX1452/MAX1455 FAQs
App Note MAX1452 Nonlinearity-Correction Application Circuit
App Note Using the MAX1452 for Remote-Sensor Compensation
App Note Making the MAX1452/MAX1455 Signal Conditioners Tolerant of Supply Limitations
Reference Schematic Liquid-Level Measurement System Uses a Compensated Silicon Pressure Sensor and Precision Delta-Sigma ADCs, Part 1

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .