Multichannel Sensor Signal Processor Provides Amplification, Calibration, Linearization, and Temperature Compensation of Variety of Sensors
SUNNYVALE, CA-February 22, 2005-Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX1464, a low-power, low-noise, multichannel, 16-bit programmable sensor signal processor. It provides amplification, calibration, signal linearization, and temperature compensation. The MAX1464 delivers a powerful overall performance approaching the inherent repeatability of the sensor without requiring any external trim components.
The MAX1464 accommodates sensors with sensitivities ranging from 1mV/V to 1V/V. Optimized for industrial, automotive, and process control applications, the MAX1464 is designed for use with a broad range of sensors, including pressure sensing and compensation, RTD and thermal-couple linearization, weight sensing and classification, and remote process monitoring with limit indication.
The MAX1464 includes two 16-bit voltage-output DACs and two 12-bit PWMs, which can be used to indicate each of the temperature-compensated sensor signals independently, as a sum or difference signal, or as a 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 also incorporates a 16-bit CPU, user-programmable 4kB of FLASH program memory, 128 bytes of FLASH user information, one 16-bit ADC, four rail-to-rail op amps, one
SPI™-compatible interface, two GPIOs, and one on-chip temperature sensor.
Packaged in a 28-pin SSOP package, the MAX1464 operates from a single 5.0V supply and is available for automotive, industrial, and commercial temperature ranges. Prices start at $3.35 (10,000-up, FOB USA). Evaluation kits are also available to speed designs.
SPI is a trademark of Motorola, Inc.
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