LM12L458CIV

ADCs/DACs - Special Purpose Overview

The LM12L458CIV is a specialty analog circuit manufactured by National Semiconductor, now part of Texas Instruments. It is housed in a 44-pin Plastic Quad Chip Carrier (PQCC44) package with J-bend terminals and a 1.27 mm pitch. The device operates within an industrial temperature range of -40°C to 85°C and requires a supply voltage between 3 V and 5.5 V, with a nominal rating of 5 V. This component is classified as a general-purpose analog integrated circuit designed for data acquisition or signal processing applications requiring self-calibration capabilities.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 12-bit + sign data acquisition system with self-calibration functionality
• Industrial temperature operation from -40°C to 85°C
• Single-function analog circuit in a 44-pin PQCC44 surface-mount package

ADCs/DACs - Special Purpose Applications

• Data acquisition systems requiring high-resolution input
• Industrial instrumentation with self-calibration needs
• Signal conditioning circuits in harsh environments

ADCs/DACs - Special Purpose Procurement Notes

Verify the manufacturer source, as National Semiconductor was acquired by Texas Instruments. Confirm the specific datasheet version for the LM12L458 series to ensure compatibility with system requirements. Check for lead-free compliance if required by project specifications. Ensure the PQCC44 package footprint matches the PCB design constraints.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a 12-bit resolution with sign bit is required in a compact quad chip carrier package. Compare against the LM12454 and LM12H458 variants for pinout and feature differences. Ensure the 3 V to 5.5 V supply range aligns with the system power architecture. Verify thermal management requirements for the plastic package within the specified operating temperature range.

ADCs/DACs - Special Purpose Part Context

This part belongs to the LM1245x family of 12-bit data acquisition systems. It shares core functionalities with the LM12454 and LM12H458 but may differ in pin configuration or specific calibration features. The LM12L458CIV specifically denotes the industrial temperature grade and the C suffix typically indicates commercial/industrial variant characteristics within the National Semiconductor lineup.

ADCs/DACs - Special Purpose Replacement Considerations

Direct replacements include the LM12458CIV and LM12H458CIV from the same family. Verify pin-to-pin compatibility and functional equivalence before substitution. Consider the LM12454 if fewer channels are sufficient. Cross-reference with Texas Instruments documentation for updated lifecycle status.