ADC0838CCN/NOPB

Analog To Digital Converters (ADC) Overview

The ADC0838CCN/NOPB is an 8-bit successive approximation analog-to-digital converter featuring an 8-channel configurable input multiplexer. It operates on a single 5 VDC supply with a power consumption of 15 mW and supports a clock frequency up to 400 kHz. The device provides serial I/O compatible with TI MICROWIRE standards, allowing direct interface to microprocessors. It accommodates single-ended, differential, and pseudo-differential input configurations via software control. The component is housed in a 20-pin PDIP package and ensures a total unadjusted error of ±1 LSB across the specified operating temperature range.

Analog To Digital Converters (ADC) Feature Summary

• 8-Channel Multiplexer: Supports software-configurable single-ended, differential, or pseudo-differential input modes.
• Serial Interface: MICROWIRE-compatible serial data link for easy processor integration.
• Single Supply Operation: Functions with a 4.5 VDC to 6.3 VDC supply voltage.
• Low Power Consumption: Dissipates 15 mW during operation.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel signal acquisition.
• Data acquisition modules for remote sensor monitoring.
• Microprocessor-based instrumentation with limited I/O pins.
• Battery-powered devices utilizing ratiometric measurement techniques.

Analog To Digital Converters (ADC) Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the supplier source provides valid production data certificates to guarantee component authenticity and adherence to electrical specifications.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 8-bit resolution with multiple analog inputs is required within a single package. It is suitable for applications needing flexible input configuration without external multiplexers. Verify that the system clock frequency does not exceed 400 kHz and that the supply voltage remains within the 4.5 VDC to 6.3 VDC range for optimal performance.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADC0831-N series, which includes variants with different channel counts (1, 2, 4, and 8). The ADC0838 variant specifically provides the highest channel count in this family. All members share identical core architecture, serial interface protocols, and electrical characteristics, differing primarily in the number of available analog input channels and corresponding pin counts.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements include other parts from the ADC0831-N family such as the ADC0834CN/NOPB for 4-channel applications. Cross-vendor equivalents may require verification of pin compatibility and timing parameters. Ensure any substitute maintains MICROWIRE compatibility if existing firmware relies on the specific serial protocol.

Analog To Digital Converters (ADC) FAQ

Can the ADC0838CCN/NOPB operate in differential mode?

Yes, the device supports differential input mode where adjacent channels are paired. The polarity of the positive and negative inputs can be selected via software addressing.

What is the maximum clock frequency supported?

The maximum clock frequency is 400 kHz. The duty cycle should ideally remain between 40% and 60% for proper operation.

How is the reference voltage handled?

The reference voltage defines the input span. It can be tied to VCC for ratiometric applications or connected to an external stable voltage source for absolute accuracy.