ADS7831P

Analog To Digital Converters (ADC) Overview

The ADS7831P is a discontinued 12-bit CMOS Analog-to-Digital Converter (ADC) manufactured by Texas Instruments. It features a complete Successive Approximation Register (SAR) architecture with an integrated sample/hold circuit, internal reference, and clock. The device operates at a throughput rate of 600 kHz with a standard ±2.5V input range. It utilizes parallel data output with latches and three-state drivers. The ADS7831P is housed in a 28-pin Plastic Dual In-Line Package (PDIP). It is specified for operation over the industrial temperature range of –40 °C to +85 °C.

Analog To Digital Converters (ADC) Feature Summary

• 600 kHz throughput rate with 1.3 μs conversion time
• 12-bit resolution with Binary Two's Complement data format
• Standard ±2.5V analog input range
• Integrated internal 2.5V reference voltage
• Parallel 12-bit data bus with three-state outputs

Analog To Digital Converters (ADC) Applications

• High-speed data acquisition systems
• Industrial process control monitoring
• Portable instrumentation requiring ±5V supply systems

Analog To Digital Converters (ADC) Procurement Notes

The ADS7831P is listed as obsolete in the manufacturer documentation. No new production units are available from the original manufacturer. Verification of component authenticity and condition is required when sourcing from secondary distributors. Designers should consider replacement strategies due to discontinuation status.

Analog To Digital Converters (ADC) Selection Notes

Select this component only if legacy system compatibility with a 28-pin PDIP package and parallel interface is mandatory. The device requires dual ±5V power supplies for optimal performance. Ensure the application can accommodate the specific timing requirements of the CS and R/C control lines for conversion initiation and data reading.

Analog To Digital Converters (ADC) Part Context

The ADS7831P belongs to the ADS783x family of high-speed sampling ADCs. It shares architectural similarities with other devices in the series but is distinct in its parallel interface configuration and PDIP packaging option. The 'P' suffix specifically denotes the 28-pin plastic DIP package variant.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers: None.