ADS7832BP

Analog To Digital Converters (ADC) Overview

The ADS7832BP is a monolithic CMOS 12-bit analog-to-digital converter featuring an internal sample/hold circuit and a four-channel multiplexer. It operates on a single +5V or +3.3V supply with standard CS, RD, and WR control signals for microprocessor interfacing. Conversion results are output via an 8-bit three-state bus in two bytes. The device includes autocalibration to eliminate offset and gain adjustments. It is available in a 28-pin plastic DIP package (ADS7832BP) and is fully specified for operation over the industrial temperature range of –40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 4-channel input multiplexer
• Autocalibrating architecture requiring no external offset or gain adjustment
• Single-supply operation (+5V or +3.3V)
• Low power consumption: 14mW typical in power-up mode, 50μW in power-down mode
• Pin-compatible with ADC7802 and ADS7803

Analog To Digital Converters (ADC) Applications

• Microprocessor-based data acquisition systems
• Industrial process control monitoring
• Battery-powered instrumentation requiring low power
• Multi-channel sensor interfaces

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix 'BP' corresponds to the 28-pin Plastic DIP package (Drawing 215). Confirm the device meets the industrial temperature specification of –40°C to +85°C. Ensure the datasheet version matches the specific revision required for timing parameters, as calibration cycles and clock dependencies may vary between revisions.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit SAR ADC with integrated multiplexer and autocalibration is required. It supports both internal and external clocking; use an external clock for synchronization with system timing. The device requires a reference voltage within the supply range. Consider the 8.5μs conversion time at 2MHz external clock for throughput requirements. Ensure the application can accommodate the parallel 8-bit bus interface and standard logic control signals.

Analog To Digital Converters (ADC) Part Context

The ADS7832BP is part of the ADS7832 family from Texas Instruments (formerly Burr-Brown). It serves as a direct pin-compatible replacement for the ADC7802 and ADS7803. The 'BP' suffix specifically denotes the 28-lead Plastic DIP package variant, distinct from the 'BN' suffix which indicates the 28-lead LCC package.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7832BP is pin-compatible with the ADC7802 and ADS7803. Verify that the substitute device supports the same 28-pin DIP footprint and maintains compatibility with the required 5V or 3.3V logic levels and control signal timings.