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 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 addition to offset and span compensation, the MAX1455 provides a unique temperature compensation strategy that was developed to provide a remarkable degree of flexibility while minimizing testing costs.
Maxim Integrated
