ADS4145IRGZR

Analog To Digital Converters (ADC) Overview

The ADS4145IRGZR is a single-channel, 14-bit analog-to-digital converter manufactured by Texas Instruments. It operates at sampling rates of up to 125 MSPS and utilizes a pipeline architecture. The device accepts differential analog inputs and provides parallel digital outputs. It requires a 1.8 V analog supply and a 1.8 V digital supply. Key performance metrics include a signal-to-noise ratio (SNR) of 70.9 dB, an effective number of bits (ENOB) of 11.4 bits, and a power dissipation of 265 mW. The component functions within a temperature range of -40°C to +85°C and is housed in a 48-pin VQFN package.

Analog To Digital Converters (ADC) Feature Summary

• Ultralow-power consumption design optimized for battery-operated or thermally constrained applications
• Integrated internal reference voltage source reduces external component count
• Differential input structure supports high common-mode rejection and noise immunity

Analog To Digital Converters (ADC) Applications

• Software-defined radio systems
• Instrumentation and test equipment
• Medical imaging subsystems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix against the manufacturer's current datasheet to confirm pinout compatibility and electrical specifications. Ensure the ordering part number matches the required tape-and-reel packaging format. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement to prevent handling damage during assembly.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel, 14-bit resolution is required at sampling rates up to 125 MSPS with minimal power budget. Compare SNR and SFDR specifications against system dynamic range requirements. Verify that the parallel interface timing aligns with the downstream FPGA or processor capabilities. Consider thermal management solutions given the 265 mW power dissipation in the VQFN package.

Analog To Digital Converters (ADC) Part Context

The ADS4145 belongs to Texas Instruments' ADS41xx family of ultralow-power ADCs. This series shares architectural similarities with the ADS4149 and ADS4126 but differs in channel count and maximum sampling speed. The IRGZR suffix indicates an industrial temperature range variant supplied in a reel format, distinguishing it from evaluation module components or tape-and-cut alternatives.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS4145IRGZT serves as a direct tape-and-cut alternative to the reel-packaged IRGZR variant. For higher throughput needs, the dual-channel ADS4222 offers similar power characteristics with increased channel density. Systems requiring buffer integration may consider the ADS41B25 series.