THS4221DGK

Instrumentation, Op Amps, Buffer Amps Overview

The THS4221DGK is a single-channel, low-distortion, high-speed voltage feedback operational amplifier manufactured by Texas Instruments. It features rail-to-rail output swing and operates from a single supply of 3 V to 15 V or dual supplies of ±1.35 V to ±7.5 V. Key electrical parameters include a gain-bandwidth product of 120 MHz, a slew rate of 975 V/µs, and an open-loop voltage gain of 100 dB. The device draws a maximum quiescent current of 14 mA per channel and is housed in an 8-pin DGK (VSSOP) package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail output stage enables full signal swing across the supply range.
• Ultra-low harmonic distortion supports high-fidelity video and signal processing applications.
• High slew rate and wide bandwidth facilitate fast transient response and high-frequency operation.
• Low quiescent current consumption allows for efficient power usage in portable systems.

Instrumentation, Op Amps, Buffer Amps Applications

• Low-voltage analog-to-digital converter preamplifier
• Active filtering circuits
• Video signal processing and switching

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'DGK' corresponds to the 8-pin VSSOP plastic small outline package with the designated thermal characteristics. Confirm that the component meets RoHS compliance standards as specified in the manufacturer's documentation. Ensure the procurement source provides valid traceability for production data released prior to January 2004 revisions.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a single-channel amplifier with rail-to-rail output is required alongside high slew rate performance. It is suitable for designs operating on single supplies down to 3 V. Consider the THS4222 if dual-channel integration is needed, or the THS4225 if power-down functionality is required for the same package type.

Instrumentation, Op Amps, Buffer Amps Part Context

The THS4221DGK belongs to the THS422x family of low-voltage, high-output swing operational amplifiers. This family includes single-channel (THS4221/THS4225) and dual-channel (THS4222/THS4226) variants. The DGK suffix specifically denotes the 8-lead VSSOP package, distinguishing it from other form factors like DGN or DBV within the same functional family.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Public confirmed substitute part numbers: THS4221DGN, THS4221DBV.