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LM12438 - 12-Bit + Sign Data Acquisition System

Download the LM12438 datasheet PDF. This datasheet also covers the LM12434 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 LM12434 and LM12 L 438 are highly integrated Data Acquisition Systems Operating on 3V to 5V they combine a fully-differential self-calibrating (correcting linearity and zero errors) 13-bit (12-bit a sign) analog-to-digital converter (ADC) and sample-and-hold (S H) with extensive analog and digit

Key Features

  • Y Three operating modes 12-bit a sign 8-bit a sign and ‘‘watchdog’’ comparison mode Y Single-ended or differential inputs Y Built-in Sample-and-Hold Y Instruction RAM and event sequencer Y 8-channel (LM12 L 438) or 4-channel (LM12434) multiplexer Y 32-word conversion FIFO Y Programmable acquisition times and conversion rates Y Self-calibration and diagnostic mode Y Power down output for system power management Y Read while convert capability for maximum through-put rate.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM12434-NationalSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
LM12434 12-Bit + Sign Data Acquisition System
LM124 Low Power Quad Operational Amplifiers
LM12454 12-Bit Sign Data Acquisition System
LM12458 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
LM12434 LM12 L 438 12-Bit a Sign Data Acquisition System with Serial I O and Self-Calibration July 1995 LM12434 LM12 L 438 12-Bit a Sign Data Acquisition System with Serial I O and Self-Calibration General Description The LM12434 and LM12 L 438 are highly integrated Data Acquisition Systems Operating on 3V to 5V they combine a fully-differential self-calibrating (correcting linearity and zero errors) 13-bit (12-bit a sign) analog-to-digital converter (ADC) and sample-and-hold (S H) with extensive analog 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 instruction RAM can store the conversion sequence for up to eight acquisitions through the LM12 L 438’s eight-in