OPA827AIDG4

Instrumentation, Op Amps, Buffer Amps Overview

The OPA827AIDG4 is a single-channel, low-noise, high-precision operational amplifier manufactured by Texas Instruments. It features a JFET input stage with a gain-bandwidth product of 22 MHz and a slew rate of 28 V/us. Key electrical parameters include an input offset voltage of 150 uV, input bias current of 10 pA, and input voltage noise density of 4 nV/sqrt Hz. The device operates on supply voltages from 8 V to 36 V (single) or 4 V to 18 V (dual), drawing 4.8 mA of quiescent current per channel. It provides rail-to-rail output swing and supports output currents up to 30 mA. The component is housed in an SOIC-8 package and functions within a temperature range of -40 C to +125 C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• JFET input architecture providing ultra-low input bias current for minimal signal loading
• High precision performance characterized by low input offset voltage and drift
• Rail-to-rail output capability maximizing dynamic range in single-supply applications
• Low voltage noise density suitable for sensitive signal conditioning tasks

Instrumentation, Op Amps, Buffer Amps Applications

• Precision data acquisition systems requiring low noise and high accuracy
• Medical instrumentation and diagnostic equipment signal chains
• Industrial process control sensors and transducer interfaces
• Photodiode amplifiers and high-impedance sensor buffers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'DG4' against the manufacturer's current datasheet to confirm pinout compatibility and RoHS status. Ensure the SOIC-8 package dimensions match your PCB footprint requirements. Confirm that the operating temperature range meets your environmental specifications. Cross-reference the ordering information with official Texas Instruments documentation to avoid counterfeit components.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when low noise and high precision are critical alongside moderate speed requirements. The JFET input makes it suitable for high-impedance sources where bipolar inputs would cause excessive bias current errors. Compare the 22 MHz bandwidth against application needs; faster alternatives exist but may offer higher noise. Consider the rail-to-rail output if maximizing headroom near supply rails is necessary.

Instrumentation, Op Amps, Buffer Amps Part Context

The OPA827 belongs to Texas Instruments' family of low-noise, high-precision operational amplifiers. It is designed to replace older Burr-Brown designs while offering improved performance metrics. The device is part of a broader portfolio including dual-channel variants like the OPA2827, allowing designers to scale solutions for multi-channel applications while maintaining consistent electrical characteristics across the system.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Public confirmed substitute part numbers: OPA827AIDR, OPA827AIDGKR.