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MAX1463 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX1463 Datasheet(HTML) 1 Page - Maxim Integrated Products |
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1 / 49 page  General Description The MAX1463 is a highly integrated, low-power, two- channel sensor signal processor optimized for industri- al and process control applications such as pressure sensing and compensation, RTD and thermal-couple linearization, weight sensing and classification, and remote process monitoring with limit indication. The MAX1463 accommodates sensors with outputs ranging from 1mV/V to 1V/V and supports both pro- grammable current and voltage sensor excitation. The MAX1463 provides amplification, calibration, signal lin- earization, and temperature compensation that enable an overall performance approaching the inherent repeatability of the sensor without requiring any exter- nal trim components. Two 16-bit voltage output DACs and two 12-bit PWMs can be used to indicate each of the temperature-com- pensated sensor signals independently, as a sum or difference signal, or user-defined relationship between each signal and temperature. Uncommitted op amps are available for buffering the DAC outputs, driving heavier external loads, or providing additional gain and filtering. The MAX1463 incorporates a 16-bit CPU, user-pro- grammable 4kB of FLASH program memory, 128 bytes of FLASH user information, one 16-bit ADC, two 16-bit DACs, two 12-bit PWM digital outputs, four Rail-to-Rail® op amps, one SPI™-compatible interface, two GPIOs, and one on-chip temperature sensor. The MAX1463 operates from a single 5.0V supply and is packaged for automotive, industrial, and commercial temperature ranges in a 28-pin SSOP package. Applications Pressure Sensor Signal Conditioning Weight Measurement Systems Thermocouple and RTD Linearization Transducers and Transmitters Process Indicators Calibrators and Controllers GMR and MR Magnetic Direction Sensors Features o Programmable Amplification, Calibration, Linearization, and Temperature Compensation o Two Differential or Four Single-Ended Sensor Input Channels o Accommodates Sensor Output Sensitivities from 1mV/V to 1V/V o Two DAC/PWM Output Signal Channels o 4–20mA Output Capability o 4kB of FLASH Memory for Code and Coefficients o 128 Bytes of FLASH Memory for User Information o Integrated Temperature Sensor o Flexible Dual Op-Amp Blocks o Programmable Sensor Input Gain and Offset o Programmable Sensor Sampling Rate and Resolution o Programmable Current Excitation Source for Bridge Sensors o Buffered 1.25V Output Reference o No External Trim Components Required Low-Power Two-Channel Sensor Signal Processor ________________________________________________________________ Maxim Integrated Products 1 Ordering Information 19-2549; Rev 0; 8/02 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. *Dice are tested at TA = +25°C, DC parameters only. Functional Diagram and Detailed Block Diagram appear at end of data sheet. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. SPI is a trademark of Motorola, Inc. PART TEMP RANGE PIN-PACKAGE MAX1463CAI 0°C to +70°C 28 SSOP MAX1463C/W* 0°C to +70°C Die MAX1463EAI -40°C to +85°C 28 SSOP MAX1463AAI -40°C to +125°C 28 SSOP 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 OUT2SM AMP2M AMP2P OUT2LG ISRC INP1 VDDF INM1 INP2 INM2 VREF VSS GPIO2 GPIO1 VSS SCLK DI DO CS CKIO CKSEL N.C. VDD VBG OUT1LG AMP1P AMP1M OUT1SM SSOP TOP VIEW MAX1463 Pin Configuration |
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