EVALUATION KIT AVAILABLE
MAX1452
Low-Cost Precision Sensor
Signal Conditioner
General Description
Benefits and Features
● Single-Chip, Integrated Analog Signal Path Reduces
Design Time and Saves Space in a Complete
Precision Sensor Solution
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.
• 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
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.
• 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
The MAX1452 is packaged for the commercial, industrial,
and automotive temperature ranges in 16-pin SSOP/
TSSOP and 24-pin TQFN packages.
Ordering Information
PART
TEMP RANGE
0°C to +70°C
PIN-PACKAGE
16 SSOP
Customization
MAX1452CAE+
MAX1452EAE+
MAX1452AAE+
MAX1452AUE+
MAX1452ATG+
MAX1452C/D
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.
-40°C to +85°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
0°C to +70°C
16 SSOP
16 SSOP
16 TSSOP
24 TQFN-EP*
Dice**
Applications
● Pressure Sensors
● Transducers and Transmitters
● Strain Gauges
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
**Dice are tested at T = +25°C, DC parameters only.
A
● Pressure Calibrators and Controllers
● Resistive Elements Sensors
● Accelerometers
Detailed Block Diagram and Pin Configurations appear at
the end of data sheet.
● Humidity Sensors
Outputs Supported
● 4–20mA
● 0 to +5V (Rail-to-Rail)
● +0.5V to +4.5V Ratiometric
● +2.5V to ±2.5V
Secure-Lock is a trademark of Maxim Integrated Products, Inc.
19-1829; Rev 5; 4/15