THS4500IDGN

Instrumentation, Op Amps, Buffer Amps Overview

The THS4500IDGN is a high-speed fully differential amplifier from Texas Instruments, housed in an 8-pin MSOP package with PowerPAD. It features a gain-bandwidth product of 300 MHz and a slew rate of 2800 V/µs. The device operates on supply voltages ranging from 4.5 V to 15 V (±2.25 V to ±7.5 V) and includes power-down capability. Key electrical characteristics include a common-mode rejection ratio of 80 dB, input bias current of 4.6 µA, and input offset voltage of 7 mV.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Fully differential architecture providing single-ended to differential conversion and active filtering capabilities.
• Integrated output common-mode control for precise signal conditioning.
• Power-down functionality to reduce quiescent current consumption when inactive.
• Input common-mode range extends to the negative power-supply rail.

Instrumentation, Op Amps, Buffer Amps Applications

• High linearity analog-to-digital converter preamplifier
• Wireless communication receiver chains
• Differential line driver

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'IDGN' corresponds to the industrial temperature range (-40°C to +85°C) and the MSOP-8 package configuration. Confirm that the PowerPAD thermal pad connection requirements are met in the final PCB design to ensure proper heat dissipation and device reliability during operation.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high linearity and wide bandwidth are required for driving ADCs or driving differential loads. The THS4500 is distinct from the THS4501 due to its integrated power-down pin, offering additional system-level power management flexibility compared to the standard version.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the THS4500 family of wideband, low-distortion fully differential amplifiers. It is designed to support 14-bit operation through 40 MHz. The family includes variants such as the THS4501 (no power-down), THS4502, and THS4503, which share similar performance metrics but differ in internal configurations and package options.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

THS4501IDGN serves as a direct functional substitute if power-down capability is not required. Other family members like THS4502 and THS4503 offer alternative internal architectures while maintaining similar bandwidth specifications.

Instrumentation, Op Amps, Buffer Amps FAQ

What is the function of the PD pin?

The PD (Power-Down) pin allows the user to disable the device to minimize power consumption. The device is enabled when the voltage is above -2.9 V and disabled below -4.3 V under dual supply conditions.

How does the input common-mode range behave?

The input common-mode range is shifted to include the negative power-supply rail, allowing the amplifier to handle signals that swing close to or slightly below the negative supply potential.