ADC10464CIWM/NOPB

Analog To Digital Converters (ADC) Overview

The ADC10464CIWM/NOPB is a 10-bit analog-to-digital converter featuring an internal four-channel multiplexer and sample-and-hold circuit. Utilizing a patented multistep conversion technique, it achieves a typical conversion time of 600 ns with a maximum sampling rate of 800 kHz. The device operates on a single +5V supply and dissipates a maximum of 235 mW. It provides tri-state digital outputs for direct microprocessor interfacing without external logic. Key electrical specifications include a total harmonic distortion of -60 dB (max) at 50 kHz and no missing codes over the industrial temperature range.

Analog To Digital Converters (ADC) Feature Summary

• Built-in four-channel analog input multiplexer
• Internal sample-and-hold circuit eliminates external components
• Multistep conversion architecture for high speed and low power
• Tri-state outputs for direct memory or I/O port mapping

Analog To Digital Converters (ADC) Applications

• Digital signal processor front ends
• Data acquisition instrumentation
• Disk drive control systems
• Mobile telecommunications equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify that the component matches the original National Semiconductor design now managed by Texas Instruments. Confirm the CIWM suffix corresponds to the SOIC-28 surface-mount package. Ensure the NOPB designation indicates lead-free compliance. Cross-reference the specific revision level if legacy compatibility is required for existing hardware designs.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a four-input multiplexed channel selection is required within a single ADC package. The ADC10464 differs from the ADC10461 (single channel) and ADC10462 (two channels) by providing four selectable inputs. Verify that the source impedance remains below 500 ohms to maintain specified accuracy at the minimum sample time of 250 ns.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADC1046x family of 10-bit converters developed using National Semiconductor's proprietary technology. It serves as a high-speed alternative to traditional successive-approximation converters. The CIWM variant specifically denotes the small outline package suitable for surface-mount assembly in compact electronic devices.

Analog To Digital Converters (ADC) Replacement Considerations

The ADC10461 and ADC10462 are pin-compatible variants within the same family but offer fewer input channels. Direct substitution requires verifying that the application utilizes all four available multiplexer inputs provided by the ADC10464.