PGA5807ARGCT

Analog Front End (AFE) Overview

The PGA5807ARGCT is an integrated 8-channel analog front-end (AFE) designed for high-performance signal conditioning in ultrasound imaging systems. It operates on a single 3.13 V to 3.6 V supply and features a fixed-gain low-noise amplifier (LNA), programmable gain amplifier (PGA), and programmable low-pass filter (LPF). Each channel includes a 12 dB LNA with a noise density of 2.1 nV/√Hz, supporting full-differential inputs up to 500 mVpp. The PGA offers 0–18 dB adjustable gain in 3 dB steps, while the LPF provides selectable cutoff frequencies of 60 MHz or 75 MHz. The device consumes 60 mW per channel and is housed in a compact 9 mm x 9 mm VQFN-64 package.

Analog Front End (AFE) Feature Summary

• Integrated 8-channel AFE with fixed 12 dB LNA, programmable PGA (0–18 dB), and programmable LPF (60/75 MHz)
• Low noise performance with 2.1 nV/√Hz input-referred noise density
• Full-differential input capability handling up to 500 mVpp signals
• Single 3.3 V analog power supply with 60 mW per-channel power consumption

Analog Front End (AFE) Applications

• Ultrasound imaging systems
• Medical diagnostic equipment requiring multi-channel signal acquisition
• High-density phased array transducer interfaces

Analog Front End (AFE) Procurement Notes

Verify the specific suffix 'ARGCT' against the manufacturer's current datasheet to confirm pinout, packaging dimensions, and environmental compliance status. Confirm that the VQFN-64 package matches the design footprint requirements. Check for any Product Change Notifications (PCNs) regarding reel size conversions or material changes that may affect assembly processes.

Analog Front End (AFE) Selection Notes

Select this component when designing systems requiring simultaneous acquisition from eight ultrasound channels with integrated signal conditioning. Ensure the application supports the specified 3.13 V to 3.6 V operating voltage range. Verify that the required gain settings fall within the 0–18 dB PGA range and that the bandwidth needs align with the 60 MHz or 75 MHz LPF options.

Analog Front End (AFE) Part Context

The PGA5807A series belongs to Texas Instruments' portfolio of specialized analog front-ends for medical imaging. This family integrates multiple signal chain components into a single chip to reduce board space and simplify design complexity for high-channel-count ultrasound probes. The ARGCT variant specifies the commercial temperature grade and tape-and-reel packaging format.

Analog Front End (AFE) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate other members of the PGA5807A family or TI's broader AFE portfolio only after verifying functional compatibility and pinout alignment through official datasheets.