ADC0838CCN

Analog To Digital Converters (ADC) Overview

The ADC0838CCN is an 8-bit successive approximation analog-to-digital converter (ADC) manufactured by Texas Instruments. It features an 8-channel multiplexer with configurable single-ended, differential, and pseudo-differential input modes. The device operates on a single 5 VDC supply within a voltage range of 4.5 V to 6.3 V. Key electrical specifications include a maximum total unadjusted error of ±1 LSB, a conversion time of 32 μs, and low power consumption of 15 mW. It utilizes a TI MICROWIRE-compatible serial interface for data exchange.

Analog To Digital Converters (ADC) Feature Summary

• 8-Channel Multiplexer: Supports software-configurable single-ended, differential, and pseudo-differential input modes.
• Serial Interface: TI MICROWIRE compatible direct interface to COPS family processors; standard shift register or microprocessor compatible.
• High Accuracy: Total unadjusted error of ±1 LSB with no zero or full-scale adjustment required.
• Low Power Operation: Consumes 15 mW at a single 5 VDC supply.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel signal acquisition.
• Data acquisition systems utilizing remote operation with serial digital data links.
• Battery-powered instrumentation benefiting from low power consumption and single-supply operation.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CCN' against current Texas Instruments documentation to confirm package type (PDIP-14) and temperature range (0°C to +70°C). Check for availability status as legacy components may have limited production runs. Ensure compatibility with system voltage levels (4.5V–6.3V) and clock frequencies (up to 400 kHz) during integration.

Analog To Digital Converters (ADC) Selection Notes

Select the ADC0838CCN when eight analog channels require simultaneous or sequential sampling with high noise immunity via serial transmission. Choose this component over parallel ADCs if PCB space is constrained, as the serial interface reduces pin count. Ensure the application can accommodate the 32 μs conversion latency and provides a stable reference voltage between 1.3 V and 5.9 kΩ source impedance.

Analog To Digital Converters (ADC) Part Context

The ADC0838CCN belongs to the ADC0831-N/ADC0832-N/ADC0834-N/ADC0838-N series of 8-bit serial I/O A/D converters. This family shares common architectural features such as the SAR structure and MICROWIRE interface, differing primarily in the number of multiplexed input channels (1, 2, 4, or 8).

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same series include ADC0834CN (4-channel) or ADC0832CN (2-channel) if fewer inputs are needed. For higher resolution, consider the ADC10xx series, though pinouts and interfaces may differ. Verify that any substitute maintains the 4.5V–6.3V operating range and MICROWIRE compatibility.