ADS61B23IRHB25

Analog To Digital Converters (ADC) Overview

The ADS61B23 is a 12-bit, 80-MSPS analog-to-digital converter (ADC) from Texas Instruments. It features buffered analog inputs with very low input capacitance (<2 pF) and high DC resistance (5 kΩ). The device operates on a 3.3 V analog supply and a 1.8 V to 3.3 V digital supply. Key performance metrics include an 82 dBc SFDR at -1 dBFS (1.8 Vpp input) and 70 dBFS SNR. It offers parallel CMOS and DDR LVDS output options, internal reference support, and programmable gain for SNR/SFDR trade-offs.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with no missing codes at maximum sampling rate of 80 MSPS
• Buffered analog inputs providing <2 pF capacitance and 5 kΩ DC resistance
• Parallel CMOS and Double Data Rate (DDR) LVDS digital output interfaces
• Internal reference with external reference support and programmable coarse/fine gain

Analog To Digital Converters (ADC) Applications

• Wireless Communications Infrastructure
• Software Defined Radio
• Power Amplifier Linearization
• Test and Measurement Instrumentation
• High Definition Video
• Medical Imaging
• Radar Systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation. The 'IRHB' designation indicates a 32-pin QFN package operating within the -40°C to 85°C temperature range. Confirm that the required transport media (Tape and Reel quantities of 250 or 3000) aligns with production needs. Ensure voltage levels for AVDD and DRVDD match the recommended operating conditions specified in the datasheet.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit ADC with integrated input buffers is required to minimize external driving circuit complexity. The choice between Parallel CMOS and DDR LVDS outputs depends on the downstream logic interface capabilities. Consider the programmable gain feature if optimizing for specific input signal amplitudes to improve dynamic performance metrics like SFDR.

Analog To Digital Converters (ADC) Part Context

The ADS61B23 belongs to the ADS612X family of 12-bit ADCs. It shares pin compatibility with other members of this family, facilitating design upgrades or changes in sampling rates without altering the PCB layout. This family approach allows for standardized board designs across different performance tiers within the same product line.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS61B23 is pin-compatible with other devices in the ADS612X family. Verify that any substitute part maintains the same 32-QFN package dimensions and electrical characteristics, particularly the 80 MSPS sampling rate and 12-bit resolution.