ADS7812P-TI

Analog To Digital Converters (ADC) Overview

The ADS7812P is a low-power, serial 12-bit sampling analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a successive approximation register (SAR) architecture with a single-ended input type and SPI interface. The device operates on analog and digital supply voltages ranging from 4.75 V to 5.25 V. Key electrical parameters include a sampling rate of 40 kS/s, a full power bandwidth of 600 kHz, and a signal-to-noise ratio (SNR) of 74 dB. Differential nonlinearity (DNL) and integral nonlinearity (INL) are specified at ±0.5 LSB. The component dissipates 35 mW of power and supports both internal and external reference configurations.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 40 kS/s sampling rate
• Low power consumption of 35 mW
• SPI compatible serial interface
• Internal or external reference voltage options

Analog To Digital Converters (ADC) Applications

• Battery-powered instrumentation systems
• Industrial process control monitoring
• Portable data acquisition devices

Analog To Digital Converters (ADC) Part Context

The ADS7812P belongs to the ADS7812 family of low-power serial ADCs. It is functionally similar to the ADS7812PB and ADS7812UB variants, differing primarily in packaging. The 'P' suffix denotes a 16-lead PDIP package, suitable for through-hole mounting. This model shares core specifications with other members of the series, such as the ADS7813, which offers 16-bit resolution.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7812PB is a direct pin-compatible alternative in a DIP package. For surface-mount applications, the ADS7812UB in SOIC-16 packaging provides equivalent electrical performance. Designers should verify that the replacement variant supports the required internal reference configuration if applicable.