OPA726AIDRG4

Instrumentation, Op Amps, Buffer Amps Overview

The OPA726AIDRG4 is a single-channel, very low-noise, high-speed operational amplifier manufactured by Texas Instruments. It features a 20 MHz gain-bandwidth product and a 30 V/µs slew rate. The device operates on supply voltages ranging from 4 V to 12 V (or ±2 V to ±6 V) with a maximum quiescent current of 5.5 mA per channel. It incorporates a shutdown mode that reduces current consumption to approximately 6 µA per channel. Key electrical specifications include an input voltage noise density of 6 nV/√Hz at 100 kHz, an input bias current of 200 pA, and a total harmonic distortion plus noise of 0.0003% at 1 kHz.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Features rail-to-rail output capability with excellent linearity across the operating range.
• Includes a dedicated shutdown pin for reducing power consumption in standby modes.
• Provides fast 16-bit settling time suitable for driving precision analog-to-digital converters.
• Maintains low input bias current and low noise characteristics for signal integrity.

Instrumentation, Op Amps, Buffer Amps Applications

• Optical networking transimpedance amplifiers
• Driving 16-bit analog-to-digital converters
• Active filters and integrators
• Portable audio equipment

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. Ensure compatibility with existing PCB footprints, as the 'DGK' designation indicates an MSOP-8 package. Confirm availability status directly with authorized distributors, as component lifecycle stages may affect long-term sourcing options.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a combination of high bandwidth and low noise is required within a single-supply or dual-supply architecture. The integrated shutdown feature makes it appropriate for battery-powered systems requiring extended standby times. Consider the rail-to-rail output swing if maximizing dynamic range near the supply rails is critical for the application design.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the OPA725 and OPA726 series of CMOS operational amplifiers. The OPA726 variant specifically includes an enable/shutdown control function, distinguishing it from the standard OPA725. These devices utilize a proprietary 12V analog CMOS process designed to deliver high AC performance alongside low bias currents.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Public confirmed substitute part numbers are not available in the provided datasheet.