ADC12048CIV

Analog To Digital Converters (ADC) Overview

The ADC12048CIV is a 12-bit plus sign, parallel I/O, self-calibrating sampling analog-to-digital converter (ADC) manufactured by Texas Instruments. It features an eight-channel fully differential analog multiplexer and operates from a single +5V power supply. The device supports a maximum throughput rate of 216 ksamples/s with a conversion time of 3.6 μs max. Key specifications include ±1 LSB integral linearity error after auto-calibration, programmable acquisition times, and user-controllable throughput rates. It offers low power consumption with a standby mode drawing 75 μW max. The component is housed in a 44-pin LQFP package.

Analog To Digital Converters (ADC) Feature Summary

• 12-Bit Plus Sign Resolution: Provides high-precision data conversion with no missing codes after auto-calibration.
• 8-Channel Multiplexer: Software-programmable for single-ended, differential, or pseudo-differential input configurations.
• Self-Calibrating Architecture: Automatically adjusts linearity, zero, and full-scale errors to maintain accuracy.
• Parallel Interface: Compatible with popular microprocessors including TI HPC family, Intel 386/8051, and Motorola MC68HC11/16.

Analog To Digital Converters (ADC) Applications

• Medical Instrumentation
• Process Control Systems
• Test Equipment
• Data Logging
• Inertial Guidance

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CIV' corresponds to the commercial temperature range (-40°C to 85°C) and LQFP package type as defined in the official datasheet. Confirm that the source document explicitly lists this part number variant to ensure compatibility with system requirements regarding voltage levels and interface timing.

Analog To Digital Converters (ADC) Selection Notes

Select the ADC12048CIV when an 8-channel multiplexed input is required alongside 12-bit resolution at up to 216 kSPS. Ensure the design accommodates a single +5V supply and provides adequate bypassing for VREF+ and VREF- pins. Consider the parallel interface requirements if integrating with legacy microcontrollers or DSPs requiring direct bus access.

Analog To Digital Converters (ADC) Part Context

The ADC12048 is part of Texas Instruments' portfolio of precision data converters, originally developed under National Semiconductor. It serves as a specialized solution for multi-channel signal acquisition where moderate speed and high accuracy are balanced. The 'CIV' designation typically indicates the commercial grade operating temperature range and the plastic quad flat pack (LQFP) surface-mount package.

Analog To Digital Converters (ADC) Replacement Considerations

Consult the manufacturer's product selection guide for current alternatives. Verify pinout compatibility and electrical parameter equivalence before substituting any other ADC model. Cross-reference specific package dimensions and thermal characteristics to ensure mechanical fit within the existing assembly.

Analog To Digital Converters (ADC) FAQ

What is the maximum sampling rate of the ADC12048?

The maximum sampling rate is 216 ksamples/s, achieved with a clock frequency of 12 MHz.

How does the ADC12048 handle calibration?

It features a self-calibrating process that automatically adjusts linearity, zero, and full-scale errors. This can be configured for automatic cycles or triggered manually via the configuration register.

Can the ADC12048 operate in single-ended mode?

Yes, the 8-channel multiplexer is software-programmable to support single-ended, differential, or pseudo-differential input combinations.