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LM12458 - 12-Bit Sign Data Acquisition System

Download the LM12458 datasheet PDF. This datasheet also covers the LM1 variant, as both devices belong to the same 12-bit sign data acquisition system family and are provided as variant models within a single manufacturer datasheet.

General Description

The LM12454, LM12458, and LM12H458 are highly integrated Data Acquisition Systems.

Key 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 and 2.5V bandgap reference n Instruction RAM and event sequencer n 8-channel (LM12(H)458), 4-channel (LM12454) 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 dmicroprocessor or DSP interface.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM1-2454.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LM12458 12-Bit + Sign Data Acquisition Texas Instruments
LM12458CIV 12-Bit + Sign Data Acquisition Texas Instruments
LM12454 12-Bit + Sign Data Acquisition Texas Instruments
LM124 Low-power quad operational amplifiers STMicroelectronics
LM124 Low power quad op amps NXP

Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
LM12454 12-Bit Sign Data Acquisition System
LM124 Low Power Quad Operational Amplifiers
LM12434 12-Bit + Sign Data Acquisition System
LM12438 12-Bit + Sign Data Acquisition System
LM1246 RGB Preamplifier

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LM12454/LM12458/LM12H458 12-Bit + Sign Data Acquisition System with Self-Calibration July 1999 LM12454/LM12458/LM12H458 12-Bit + Sign Data Acquisition System with Self-Calibration General Description The LM12454, LM12458, and LM12H458 are highly integrated Data Acquisition Systems. Operating on just 5V, they combine 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.