MAX1452 データシートの表示（PDF） - Maxim Integrated

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MAX1452

Low-Cost Precision Sensor Signal Conditioner

Maxim Integrated 

MAX1452

EVALUATION KIT AVAILABLE

Low-Cost Precision Sensor

Signal Conditioner

General Description

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 temper-

ature 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 trim-

ming 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 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 com-

pensation, 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.

Customization

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 solution.

Contact Maxim for further information.

Applications

●● Pressure Sensors

●● Transducers and Transmitters

●● Strain Gauges

●● Pressure Calibrators and Controllers

●● Resistive Elements Sensors

●● Accelerometers

●● Humidity Sensors

Outputs Supported

●● 4–20mA

●● 0 to +5V (Rail-to-Rail)

●● +0.5V to +4.5V Ratiometric

●● +2.5V to ±2.5V

Benefits and 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

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

MAX1452CAE+

0°C to +70°C

16 SSOP

MAX1452EAE+

-40°C to +85°C

16 SSOP

MAX1452AAE+ -40°C to +125°C 16 SSOP

MAX1452AUE+ -40°C to +125°C 16 TSSOP

MAX1452ATG+ -40°C to +125°C 24 TQFN-EP*

MAX1452C/D

0°C to +70°C

Dice**

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed pad.

**Dice are tested at TA = +25°C, DC parameters only.

Detailed Block Diagram and Pin Configurations appear at

the end of data sheet.

Secure-Lock is a trademark of Maxim Integrated Products, Inc.

19-1829; Rev 5; 4/15

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