THS4502IDGN

Instrumentation, Op Amps, Buffer Amps Overview

The THS4502IDGN is a high-speed fully differential amplifier from Texas Instruments, housed in an 8-pin MSOP PowerPAD package. It features a bandwidth of 370 MHz and a slew rate of 2800 V/µs. The device supports a wide supply voltage range including ±5 V, ±12 V, and 15 V single-ended operation. Key electrical characteristics include a common-mode rejection ratio (CMRR) of 80 dB and a third-order intermodulation distortion (IMD3) of -95 dBc at 30 MHz. It includes power-down capability with a quiescent current of 1 mA in the disabled state.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Fully differential architecture providing high linearity and supporting 14-bit operation through 40 MHz.
• Integrated output common-mode control for precise signal centering.
• Power-down functionality to reduce system power consumption when inactive.
• Centered input common-mode range simplifying interface requirements.

Instrumentation, Op Amps, Buffer Amps Applications

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

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix IDGN corresponds to the industrial temperature range (-40°C to +85°C) and the MSOP PowerPAD package configuration. Confirm that the ordering part number matches the required tape-and-reel or tube packaging quantity specified by the manufacturer. Ensure thermal management design accounts for the PowerPAD heatsink requirement to prevent oscillation above 60°C junction temperature.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications requiring high-speed signal conversion with low distortion. Compare against the THS4503 if power-down functionality is not needed. Consider the THS4501 for designs requiring rail-to-rail input/output capabilities. Evaluate thermal dissipation requirements carefully due to the sensitivity of the device to die temperatures exceeding 60°C.

Instrumentation, Op Amps, Buffer Amps Part Context

The THS4502 belongs to the THS450x family of wideband, low-distortion fully differential amplifiers. It shares performance metrics with the THS4503 but adds power-down control via the PD pin. This family is designed to drive high-speed ADCs and support wireless infrastructure applications where signal integrity and dynamic range are critical.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

THS4503IDGN is the direct functional substitute without power-down capability. THS4501IDGN offers similar speed but with rail-to-rail I/O. Verify pin compatibility and thermal characteristics before substitution.

Instrumentation, Op Amps, Buffer Amps FAQ

What is the maximum recommended junction temperature to prevent oscillation?

The device may exhibit low-level oscillation if the die temperature exceeds +60°C. Designers must ensure adequate thermal management to keep the junction temperature below this threshold.

How does the power-down feature affect input impedance?

In the power-down state, the input impedance changes to approximately 50 Ω || 1 kΩ || pF, differing from the typical 10^7 Ω || 1 Ω || pF in normal operation.