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LM12L458 - 12-Bit Sign Data Acquisition System with Self-Calibration

Description

The LM12L458 is a highly integrated 3.3V Data Acquisition System.

It combines a fully-differential self-calibrating (correcting linearity and zero errors) 13-bit (12-bit + sign) analog-to-digital converter (ADC) and sample-and-hold (S/H) with extensive analog functions and digital functionality.

Features

  • n Three operating modes: 12-bit + sign, 8-bit + sign, and “watchdog” n Single-ended or differential inputs n Built-in Sample-and-Hold n Instruction RAM and event sequencer n 8-channel multiplexer n 32-word conversion FIFO n Programmable acquisition times and conversion rates n Self-calibration and diagnostic mode n 8- or 16-bit wide databus microprocessor or DSP interface n CMOS compatible I/O.

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LM12L458 12-Bit + Sign Data Acquisition System with Self-Calibration July 1999 LM12L458 12-Bit + Sign Data Acquisition System with Self-Calibration General Description The LM12L458 is a highly integrated 3.3V Data Acquisition System. It combines a fully-differential self-calibrating (correcting linearity and zero errors) 13-bit (12-bit + sign) analog-to-digital converter (ADC) and sample-and-hold (S/H) with extensive analog functions and digital functionality. Up to 32 consecutive conversions, using two’s complement format, can be stored in an internal 32-word (16-bit wide) FIFO data buffer. An internal 8-word RAM can store the conversion sequence for up to eight acquisitions through the LM12L458’s eight-input multiplexer.
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