ADC0832CIWM/NOPB

Analog To Digital Converters (ADC) Overview

The ADC0832CIWM/NOPB is an 8-bit successive approximation analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a serial I/O interface compatible with TI MICROWIRE and standard SPI protocols, facilitating direct connection to microprocessors. The device includes a configurable input multiplexer supporting two channels in single-ended or differential modes. Operating on a single 5V supply, it delivers a typical conversion time of 32 μs at a clock frequency of 250 kHz. The component is housed in a 14-pin SOIC package and supports an industrial operating temperature range from -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• 8-Bit Resolution: Provides 256 discrete levels with a total unadjusted error of ±1 LSB.
• Dual-Channel Multiplexer: Supports software-configurable single-ended or differential inputs for CH0 and CH1.
• Serial Interface: Compatible with TI MICROWIRE and standard shift registers; data output is MSB first.
• Low Power Consumption: Typical power dissipation is 15 mW under standard operating conditions.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring remote sensor data acquisition.
• Microprocessor-based data logging and monitoring applications.
• Battery-powered devices utilizing ratiometric measurement techniques.
• Embedded systems interfacing with transducers and signal conditioning circuits.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CIWM' corresponds to the commercial temperature grade (-40°C to +85°C) and SOIC-14 surface-mount package as defined in the SNAS531B datasheet. Confirm that the 'NOPB' designation indicates lead-free and RoHS compliance per Texas Instruments manufacturing standards. Ensure the source document matches the revision date of March 2013 for accurate electrical parameter validation.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 8-bit resolution with dual-channel capability is required for cost-sensitive embedded designs. The SAR architecture offers a balance between speed and power consumption suitable for low-frequency sampling. Consider the internal zener diode protection if the system utilizes high-voltage supplies connected to the V+ pin. Verify that the host processor can generate the necessary 250 kHz clock signal for optimal performance.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADC0831-N series family, which also includes the ADC0831, ADC0834, and ADC0838 variants. These devices share a common functional block diagram and serial communication protocol but differ in the number of available analog input channels. The ADC0832 specifically provides two channels, whereas other family members offer one, four, or eight channels respectively.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same package and functionality include the ADC0832CCWM/NOPB. For systems requiring different channel counts, the ADC0834N (4-channel) or ADC0838N (8-channel) may be considered if pin compatibility allows. Legacy National Semiconductor versions without the NOPB suffix are functionally equivalent but may lack modern environmental compliance certifications.