ADS9228RHAR

Analog To Digital Converters (ADC) Overview

The ADS9228RHAR is a dual-channel, simultaneous-sampling, 16-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates at a maximum sampling rate of 10 MSPS per channel with a fully differential input bandwidth of 90 MHz. The device integrates an ADC driver and a precision reference, eliminating the need for external components in many applications. It features a serial LVDS interface supporting SDR and DDR modes, with separate outputs for each channel or a combined single-lane output. Power supplies include AVDD_5V and VDD_1V8, operating within an extended temperature range from -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel simultaneous sampling architecture
• Integrated ADC driver and precision reference
• Serial LVDS data interface with synchronous clock and data outputs
• Extended operating temperature range

Analog To Digital Converters (ADC) Applications

• Power analyzers
• Source measurement units (SMU)
• Marine equipment
• Servo drive position feedback
• DC power supplies, AC sources, electronic loads

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix RHAR corresponds to the VQFN-40 package configuration before procurement. Confirm that the internal reference voltage selection via the SDI/EXTREF pin aligns with system requirements. Ensure proper decoupling capacitors are placed near the REFM and VCMOUT pins as specified in the datasheet layout guidelines.

Analog To Digital Converters (ADC) Selection Notes

Select the ADS9228RHAR when a 10 MSPS throughput per channel is sufficient, offering lower power consumption compared to the 20 MSPS ADS9229 variant. Consider this part if the application requires integrated signal conditioning and reference buffering to simplify the analog front-end design. Verify that the 16-bit resolution meets the dynamic range requirements for the target signal processing tasks.

Analog To Digital Converters (ADC) Part Context

The ADS9228RHAR belongs to the ADS922x family, which includes the ADS9227 and ADS9229 variants. These devices share a common pinout and feature set but differ in maximum sampling rates and power consumption profiles. The ADS9228 specifically targets applications requiring a balance between high-speed performance and moderate power usage.

Analog To Digital Converters (ADC) Replacement Considerations

ADS9229RHAR offers higher speed at 20 MSPS/ch. ADS9227RHAR provides lower power consumption at 5 MSPS/ch. All three share the same RHA package and pin configuration.