OPA2683IDGSTG4

Instrumentation, Op Amps, Buffer Amps Overview

The OPA2683IDGSTG4 is a dual, very low power current feedback operational amplifier manufactured by Texas Instruments. It features a gain-bandwidth product of 150 MHz and a slew rate of 540 V/us. The device operates on a supply voltage range of 5 V to 12 V with a typical operating supply current of 1.9 mA per channel. Key electrical specifications include an input bias current of 10 uA, an input offset voltage of 1.5 mV, and an output current capability of 110 mA per channel. It provides a common-mode rejection ratio of 60 dB and a power supply rejection ratio of 65 dB. The input voltage noise density is 4.4 nV/sqrt Hz. The component is housed in an 8-pin VSSOP package and supports operation temperatures from -40 C to +85 C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Dual-channel architecture providing two independent high-speed amplifiers within a single compact package.
• Current feedback topology designed for applications requiring fast transient response and wide bandwidth.
• Very low power consumption optimized for battery-operated or energy-efficient systems.
• High output drive capability suitable for driving transmission lines or heavy loads.

Instrumentation, Op Amps, Buffer Amps Applications

• Video buffering and signal conditioning
• ADC driver circuits
• RF and IF amplification stages
• Test and measurement equipment

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the complete part number including the suffix 'TG4' to ensure compliance with RoHS directives and lead-free manufacturing standards. Confirm the package type corresponds to the VSSOP-8 variant. Check for moisture sensitivity levels and recommended reflow soldering profiles during procurement to prevent damage during assembly. Ensure the supplier provides valid traceability documentation.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when both high speed and low power are critical constraints. The current feedback architecture offers superior slew rate performance compared to voltage feedback amplifiers at similar power levels. Consider the 110 mA output current if driving low impedance loads. Verify that the 150 MHz bandwidth meets the system's frequency requirements without excessive gain peaking.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the OPA2683 family of dual current feedback amplifiers. It shares functional characteristics with other members like the OPA2683IDCNT but differs in packaging. The IDGSTG4 designation specifically indicates the industrial temperature range and the specific surface-mount package configuration used for space-constrained designs.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct pin-compatible replacements may include other OPA2683 variants such as OPA2683IDCNR or OPA2683IDCNT, provided the package footprint matches. Verify that substitute parts maintain the same current feedback architecture and electrical parameters to ensure circuit stability.