ASNT7113A-KMC

Overview

The ASNT7113A-KMC is a high-speed, temperature-stable SiGe differential Track-and-Hold Amplifier (THA) fabricated by Advanced Science And Novel Technology Company, Inc. It supports sampling speeds from 50MSps to 4GSps with an input bandwidth up to 20GHz. The device maintains more than 8-bit accuracy across its full frequency range and features a nominal 0dB differential gain. Key electrical parameters include a total power consumption of 1.75W, a negative supply voltage (vee) ranging from -3.3V to 0V, and a positive supply voltage (vcc) from 0V to 3.3V. The component utilizes a custom 24-pin CQFP package.

Feature Summary

• Features adjustable track period length controlled by external voltage to maximize valid output step duration.
• Includes an internal input data equalizer for compensating high-frequency gain drops in front-end circuitry.
• Provides fully differential input and output buffers with on-chip 50Ohm termination for CML-type logic interfaces.
• Supports dual power supply configurations (negative or positive scheme) with AC/DC coupling options.

Applications

• High-speed analog-to-digital converter front-ends
• Broadband signal sampling systems
• Test and measurement equipment requiring precise waveform capture

Procurement Notes

Verify the specific ordering suffix matches the required package type and pinout configuration. Confirm that the supplier provides documentation compliant with RoHS standards per directive 2011/65/EU. Ensure the procurement channel sources genuine components from Advanced Science And Novel Technology Company, Inc. to guarantee reliability and performance specifications are met.

Selection Notes

Select this component when applications require a broadband THA with adjustable gain and equalization up to 20GHz. Consider the SiGe fabrication technology for high performance and yield. Evaluate the need for adjustable duty cycle control and the specific power supply scheme (negative vs. positive) during PCB layout design to ensure optimal common-mode voltage levels.

Part Context

This device belongs to the ADSANTEC family of high-speed integrated circuits. It is designed for demanding RF and microwave applications where signal integrity and wide bandwidth are critical. The part is manufactured using Silicon Germanium (SiGe) processes to achieve superior speed and linearity compared to standard CMOS technologies.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided datasheet.

FAQ

How is the input data bandwidth adjusted?

The input data bandwidth is adjusted via an internal equalizer controlled by the external voltage applied to the varcrl pin, which compensates for gain drop at high frequencies.

What are the recommended DC-coupled input conditions?

For DC-coupled mode, the input common-mode voltage must be equal to vcc to ensure optimal performance of the chip.