ADS7812UB/1K

Analog To Digital Converters (ADC) Overview

The ADS7812UB/1K is a low-power, serial 12-bit analog-to-digital converter (ADC) manufactured by Texas Instruments. It utilizes a successive approximation register (SAR) architecture and operates on a single 5V supply with an analog and digital voltage range of 4.75 V to 5.25 V. The device features a sampling rate of 40 kS/s and supports single-ended input signals via an SPI-compatible serial interface. Key performance metrics include a signal-to-noise ratio (SNR) of 74 dB, differential nonlinearity (DNL) of +/- 0.5 LSB, and integral nonlinearity (INL) of +/- 0.5 LSB. Power consumption is rated at 35 mW. It is housed in a 16-pin SOIC package and includes an internal reference.

Analog To Digital Converters (ADC) Feature Summary

• Integrates an internal voltage reference to simplify circuit design.
• Supports standard SPI communication protocols for microcontroller interfacing.
• Operates within a wide industrial temperature range from -40°C to +85°C.

Analog To Digital Converters (ADC) Applications

• Portable instrumentation systems requiring low power consumption.
• Industrial process control data acquisition.
• Battery-powered measurement devices.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix '/1K' confirms the reel packaging quantity of 1000 units as documented in distributor specifications. Ensure the component matches the SOIC-16 package dimensions and pinout configuration required for the target PCB layout. Confirm RoHS compliance status through the manufacturer's official documentation before integration.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit resolution and 40 kS/s sampling rate are sufficient for the application. It is suitable for designs constrained by power budgets due to its 35 mW dissipation. Consider alternative packages such as the PB variant if through-hole mounting is required instead of surface mount technology.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS7812 series of low-power ADCs. It shares architectural similarities with other members like the ADS7812PB but differs in packaging and reel configuration. The UB suffix typically denotes the SOIC-16 surface-mount package, while the /1K indicates tape-and-reel delivery.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7812PB serves as a functional equivalent with identical electrical characteristics but utilizes a PDIP-16 through-hole package. Verify pin compatibility and thermal requirements when substituting between surface-mount and through-hole variants.