MAX1455 Datasheet | Maxim Integrated

Description Features o Provides Amplification, Calibration, and Temperature pensation o Selectable Output Clipping Limits o Acmodates Sensor Output Sensitivities from 5m V/V to 40m V/V o Single-Pin Digital Programming o No External Trim ponents Required o 16-Bit Offset and Span Calibration Resolution o Fully Analog Signal Path o PRT Bridge Can Be Used for Temperature Correction Input o On-Chip Lookup Table Supports Multipoint Calibration Temperature Correction o Fast 3.2k Hz Frequency Response o On-Chip Unmitted Op Amp o Secure-Lock™ Prevents Data Corruption The MAX1455 is a highly integrated automotive analogsensor signal processor for resistive element sensors. The MAX1455 provides amplification, calibration, and temperature pensation 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 unmitted op amp, and an onchip temperature sensor. In addition to offset and span pensation, the MAX1455 provides a unique temperature pensation strategy that was developed to provide a remarkable degree of flexibility while minimizing testing costs. The MAX1455 is available in die form, 16-pin SSOP and TSSOP packages. Customization Maxim can customize the MAX1455 for high-volume dedicated applications. Using our dedicated cell library of more than 2000 sensor-specific function blocks, Maxim can quickly provide a modified MAX1455 solution. Contact Maxim for further information. PART MAX1455EUE- MAX1455AUE- MAX1455EAE MAX1455AAE Ordering Information TEMP. RANGE -40°C to +85°C...