器件名称:
MAX1455
功能描述:
Low-Cost Automotive Sensor Signal Conditioner
文件大小:
290.95KB 共25页
简 介:
19-2088; Rev 1; 10/01 KIT ATION EVALU E L B A IL AVA Low-Cost Automotive Sensor Signal Conditioner General Description Features o Provides Amplification, Calibration, and Temperature Compensation o Selectable Output Clipping Limits o Accommodates Sensor Output Sensitivities from 5mV/V to 40mV/V o Single-Pin Digital Programming o No External Trim Components Required o 16-Bit Offset and Span Calibration Resolution o Fully Analog Signal Path o PRT Bridge Can Be Used for TemperatureCorrection Input o On-Chip Lookup Table Supports Multipoint Calibration Temperature Correction o Fast 3.2kHz Frequency Response o On-Chip Uncommitted Op Amp o Secure-Lock Prevents Data Corruption MAX1455 The MAX1455 is a highly integrated automotive analogsensor signal processor for resistive element sensors. The MAX1455 provides amplification, calibration, and temperature compensation that enable 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 trimming with integrated 16-bit digital-to-analog converters (DACs). Offset and span are also calibrated using 16-bit DACs, allowing sensor products to be truly interchangeable. The MAX1455 architecture includes a programmable sensor excitation, a 16-step programmable-gain amplifier (PGA), a 768-byte (6144 bits) internal EEPROM, four 16-bit DACs, an uncommitted op amp, and an onchip temperature sensor. In additio……
