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MAX1452CAE+ Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX1452CAE+ Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 25 page 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 tem- perature compensation that enables an overall perfor- mance approaching the inherent repeatability of the sensor. The fully analog signal path introduces no quan- tization 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 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 compensation, the MAX1452 provides a unique tem- perature 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, industri- al, 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 solu- tion. 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 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 Secure-Lock is a trademark of Maxim Integrated Products, Inc. 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** Low-Cost Precision Sensor Signal Conditioner ________________________________________________________________ Maxim Integrated Products 1 19-1829; Rev 2; 4/09 EVALUATION KIT AVAILABLE For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Ordering Information + 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. |
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