AFE5851IRGCT

Analog Front End (AFE) Overview

The AFE5851IRGCT is a Texas Instruments analog front-end (AFE) integrated circuit designed for ultrasound imaging applications. It integrates sixteen channels of voltage-controlled amplifiers (VCAs) with digital control and an eight-channel, 12-bit analog-to-digital converter (ADC). The ADC operates at a sampling rate of 65 MSPS. The device supports dual power supplies: 1.7 V to 1.9 V for analog and digital logic, and 3 V to 3.6 V for I/O interfaces. It is housed in a 64-pin VQFN package measuring 9x9 mm and functions within a temperature range of -40°C to +85°C.

Analog Front End (AFE) Feature Summary

• Integrates 16-channel VCAs with an 8-channel, 12-bit ADC operating at 65 MSPS
• Multiplexes 16 analog inputs into 8 LVDS output pairs for serial data streaming
• Supports low-voltage operation with 1.7-1.9V analog/digital and 3-3.6V I/O supplies
• Housed in a compact 64-VQFN (9x9 mm) surface-mount package

Analog Front End (AFE) Applications

• Ultrasound imaging systems
• Medical diagnostic equipment requiring high-channel-count signal acquisition
• Portable ultrasound devices utilizing the AFE5851EVM for development

Analog Front End (AFE) Procurement Notes

Verify the suffix 'CT' indicates cut-tape packaging when sourcing from distributors. Confirm RoHS compliance status and moisture sensitivity level (MSL 3) requirements for your assembly process. Ensure the 64-VQFN footprint matches your PCB layout specifications. Cross-reference the manufacturer part number AFE5851IRGCT with distributor codes such as 595-AFE5851IRGCT to ensure accurate component identification.

Analog Front End (AFE) Selection Notes

Select the AFE5851IRGCT over the AFE5801 series if sixteen input channels are required, noting that the AFE5801 provides only eight channels. Consider the AFE5851EVM evaluation module for initial characterization and CW functionality testing. Verify compatibility with standard TI LVDS deserializers like the TSW1400EVM for downstream data processing. Ensure power supply rails align with the specified 1.7-1.9V and 3-3.6V ranges.

Analog Front End (AFE) Part Context

The AFE5851 belongs to the AFE5851 family of analog front-ends. The IRGCT suffix denotes a specific tape-and-reel or cut-tape variant of the IRGC package code. Related components include the AFE5851IRGCR (reel version) and the AFE5801 series, which offers fewer channels. The AFE5851EVM serves as the primary evaluation platform for this device.

Analog Front End (AFE) Replacement Considerations

The AFE5851IRGCR is a direct functional equivalent differing only in packaging format (reel vs. cut tape). No other cross-model substitutes are confirmed in the provided documentation.