Details, datasheet, quote on part number: MAX1464C/W
PartMAX1464C/W
CategorySensors
DescriptionLow-Power, Low-Noise Multichannel Sensor Signal Processor
The MAX1464 is a highly integrated, low-power, lownoise multichannel sensor signal processor optimized for industrial, automotive, and process-control applications such as pressure sensing and compensation, RTD and thermocouple linearization, weight sensing and classification, and remote process monitoring with limit indication.
The MAX1464 accepts sensors with either single-ended or differential outputs. The MAX1464 accommodates sensor output sensitivities from 1mV/V to 1V/V. The MAX1464 provides amplification, calibration, signal linearization, and temperature compensation that enable an overall performance approaching the inherent repeatability of the sensor without requiring any external trim components.

Two 16-bit voltage-output DACs and two 12-bit PWMs can be used to indicate each of the temperature-compensated sensor signals independently, as a sum or difference signal, or user-defined relationship between each signal and temperature. Uncommitted op amps are available to buffer the DAC outputs, drive heavier external loads, or provide additional gain and filtering.

The MAX1464 incorporates a 16-bit CPU, user-programmable 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 MAX1464 operates from a single 5.0V (typ) supply and is packaged for automotive, industrial, and commercial temperature ranges in a 28-pin SSOP package.
CompanyMaxim Integrated Products
DatasheetDownload MAX1464C/W datasheet
PackagesDie
  

 

Features, Applications

Low-Power, Low-Noise Multichannel Sensor Signal Processor

The is a highly integrated, low-power, lownoise multichannel sensor signal processor optimized for industrial, automotive, and process-control applications such as pressure sensing and compensation, RTD and thermocouple linearization, weight sensing and classification, and remote process monitoring with limit indication. The MAX1464 accepts sensors with either single-ended or differential outputs. The MAX1464 accommodates sensor output sensitivities from to 1V/V. The MAX1464 provides amplification, calibration, signal linearization, and temperature compensation that enable an overall performance approaching the inherent repeatability of the sensor without requiring any external trim components. Two 16-bit voltage-output DACs and two 12-bit PWMs can be used to indicate each of the temperature-compensated sensor signals independently, as a sum or difference signal, or user-defined relationship between each signal and temperature. Uncommitted op amps are available to buffer the DAC outputs, drive heavier external loads, or provide additional gain and filtering. The MAX1464 incorporates a 16-bit CPU, user-programmable 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 SPITM-compatible interface, two GPIOs, and one on-chip temperature sensor. The MAX1464 operates from a single 5.0V (typ) supply and is packaged for automotive, industrial, and commercial temperature ranges a 28-pin SSOP package.

Features

Programmable Amplification, Calibration, Linearization, and Temperature Compensation Two Differential or Four Single-Ended ADC Input Channels Accommodates Sensor Output Sensitivities from to 1V/V Two DAC/PWM Output Signal Channels Supports 4­20mA Current Loop Applications 4kB of FLASH Memory for Code and Coefficients 128 Bytes of FLASH Memory for User Information Integrated Temperature Sensing Flexible Dual Op-Amp Block Programmable Sensor Input Gain and Offset Programmable Sensor Sampling Rate and Resolution No External Trim Components Required

PART MAX1464EAI MAX1464AAI TEMP RANGE to +125°C PIN-PACKAGE 28 SSOP Die 28 SSOP 28 SSOP
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

Functional Diagram and Detailed Block Diagram appear at end of data sheet. SPI is a trademark of Motorola, Inc.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.

Low-Power, Low-Noise Multichannel Sensor Signal Processor MAX1464

VDD to +6.0V VDDF to +6.0V VSSF to +0.3V All Other Pins VSS...................................-0.3V to (VDD + 0.3V) Continuous Power Dissipation (TA +70°C) 28-Pin SSOP (derate 9.1mW/°C above +70°C)..........727mW Operating Temperature Ranges to +125°C Junction Temperature......................................................+150°C Storage Temperature to +150°C Lead Temperature (soldering, 10s)................................ +300°C

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

(VDDF = VDD to 5.5V, VSSF = VSS = 0V, fCLK TA = TMIN to TMAX. Typical values are at VDDF = VDD = 5.0V, VSSF = VSS = +25°C, unless otherwise noted.) (Note 1)

PARAMETER SUPPLY Supply Voltage FLASH Supply Voltage Base Operating Current CPU Current VDD VDDF IBO ICPU VSS = VSSF = 0V VSS = VSSF = 0V CPU stopped (Note 2) All modules off, CPU = on, additive to IBO, ICPU = IDD + IDDF (Note 3) All modules off, ADC = on, ADC clk = 1MHz, additive to IBO; the CPU and ADC are not on at the same time ADC Current (Note 3) IADC All modules off, ADC = on, ADC clk = 7kHz, additive to IBO; the CPU and ADC are not on at the same time DAC Current Large Op-Amp Current Small Op-Amp Current POWER-ON RESET VDDF POR Threshold VDDF POR Hysteresis ANALOG INPUT = 000 Differential Input Impedance to INM1 and = 011 RDIN 11111, CLK[2:0] VDD > VDDF V IDACn IOPLGn IOPSMn All modules off, DAC = on, additive to IBO or 2) (Note 4) All modules off, CPU stopped, large op amp or 2) All modules off, CPU stopped, small op amp V µA SYMBOL CONDITIONS MIN TYP MAX UNITS

(VDDF = VDD to 5.5V, VSSF = VSS = 0V, fCLK TA = TMIN to TMAX. Typical values are at VDDF = VDD = 5.0V, VSSF = VSS = +25°C, unless otherwise noted.) (Note 1)


 

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