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MAX1452

Low-Cost Precision Sensor Signal Conditioner

Low-Cost, Precision Sensor Signal Conditioner

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

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.

Data Sheet

Download	Rev 2	(PDF, 268kB)
E-Mail

NOTE: This product uses the following:
MAX1452/MAX1455 EVKIT Software

Key Features

Provides Amplification, Calibration, and Temperature Compensation
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
Fully Analog Signal Path
On-Chip Lookup Table Supports Multipoint Calibration Temperature Correction
Supports Both Current and Voltage Bridge Excitation
Fast 150µs Step Response
On-Chip Uncommitted Op Amp
Secure-Lock™ Prevents Data Corruption
Low 2mA Current Consumption

Applications/Uses

Data Acquisition

Key Specifications:

Sensor Signal Conditioners

Part Number

Sensing Element

PGA Gain

Calibration Method

Accuracy
(%FSO)

Output Type

I_CC
(mA)

I_BRIDGE
(mA)

DACs/ADCs

V_SUPPLY
(V)

Budgetary Price

max

typ

See Notes

MAX1452

PRT

Resistive Bridge

Strain Gauge

39 to 234 (16 gains)

Internal DACs updated from internal EEPROM

0.1

Analog

0.5 to 2.0

16-bit DAC

4.5 to 5.5

$2.95 @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 prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Functional Diagram

Application Notes

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

Reliability Reports

Reliability Report:	MAX1452.pdf AEC-MAX1452AAE_B.pdf MAX1452AAE.pdf
Show FIT data for:

Software/Models

MAX1452/MAX1455 EVKIT Software

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1452AAE			Active	SSOP;16 pin;50 mm² Outline Drawing:21-0056 (PDF) Land Pattern: 90-0106 (PDF) Use pkgcode/variation: A16-2*	-40°C to +125°C	See data sheet
MAX1452AAE+			Active	SSOP;16 pin;50 mm² Outline Drawing:21-0056 (PDF) Land Pattern: 90-0106 (PDF) Use pkgcode/variation: A16+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1452AAE+T			Active	SSOP;16 pin;50 mm² Outline Drawing:21-0056 (PDF) Land Pattern: 90-0106 (PDF) Use pkgcode/variation: A16+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1452AAE-T			Active	SSOP;16 pin;50 mm² Outline Drawing:21-0056 (PDF) Land Pattern: 90-0106 (PDF) Use pkgcode/variation: A16-2*	-40°C to +125°C	See data sheet
MAX1452ATG			Active	TQFN;24 pin;16.8 mm² Outline Drawing:21-0139 (PDF) Land Pattern: 90-0022 (PDF) Use pkgcode/variation: T2444-4*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX1452ATG+			Active	TQFN;24 pin;16.8 mm² Outline Drawing:21-0139 (PDF) Land Pattern: 90-0022 (PDF) Use pkgcode/variation: T2444+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1452ATG+C8J			Active	TQFN;24 pin;16.8 mm² Outline Drawing:21-0139 (PDF) Land Pattern: 90-0022 (PDF) Use pkgcode/variation: T2444+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1452ATG+T			Active	TQFN;24 pin;16.8 mm² Outline Drawing:21-0139 (PDF) Land Pattern: 90-0022 (PDF) Use pkgcode/variation: T2444+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1452ATG+TC8J			Active	TQFN;24 pin;16.8 mm² Outline Drawing:21-0139 (PDF) Land Pattern: 90-0022 (PDF) Use pkgcode/variation: T2444+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1452ATG-T			Active	QFN;24 pin Land Pattern: Not Available	-40°C to +125°C	See data sheet
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1452C/D			Active	DICE SALES;NA pin;DICE; Land Pattern: Not Applicable Use pkgcode/variation: DICE*		See data sheet
MAX1452C/DW			Active	DICE SALES;NA pin;DICE; Land Pattern: Not Applicable Use pkgcode/variation: DICE*		See data sheet
MAX1452CAE			Active	SSOP;16 pin;50 mm² Outline Drawing:21-0056 (PDF) Land Pattern: 90-0106 (PDF) Use pkgcode/variation: A16-2*	0°C to +70°C	See data sheet
MAX1452CAE+			Active	SSOP;16 pin;50 mm² Outline Drawing:21-0056 (PDF) Land Pattern: 90-0106 (PDF) Use pkgcode/variation: A16+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1452CAE+C8H			Active	SSOP;16 pin;50 mm² Outline Drawing:21-0056 (PDF) Land Pattern: 90-0106 (PDF) Use pkgcode/variation: A16+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1452CAE+T			Active	SSOP;16 pin;50 mm² Outline Drawing:21-0056 (PDF) Land Pattern: 90-0106 (PDF) Use pkgcode/variation: A16+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1452CAE-T			Active	SSOP;16 pin Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX1452CDW			Active	Land Pattern: Not Available		See data sheet
MAX1452EAE			Active	SSOP;16 pin;50 mm² Outline Drawing:21-0056 (PDF) Land Pattern: 90-0106 (PDF) Use pkgcode/variation: A16-2*	-40°C to +85°C	See data sheet
MAX1452EAE+			Active	SSOP;16 pin;50 mm² Outline Drawing:21-0056 (PDF) Land Pattern: 90-0106 (PDF) Use pkgcode/variation: A16+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1452EAE+T			Active	SSOP;16 pin;50 mm² Outline Drawing:21-0056 (PDF) Land Pattern: 90-0106 (PDF) Use pkgcode/variation: A16+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1452EAE-T			Active	SSOP;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX1452EVKIT-CS			Active	KIT; Land Pattern: Not Available		See data sheet
MAX1452EVKIT-NS			Active	KIT; Land Pattern: Not Available		See data sheet
MAX1452EVKIT-NS+			Active	KIT; Land Pattern: Not Available		See data sheet

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-1829 Rev 2; 2009-07-21
This page last modified: 2010-03-18