INA849DR

Instrumentation, Op Amps, Buffer Amps Overview

The INA849DR is a low-noise instrumentation amplifier from Texas Instruments, housed in an 8-SOIC package. It features a gain bandwidth product of 28 MHz and a slew rate of 35 V/µs. The device operates on supply voltages ranging from 8 V to 36 V (single) or ±4 V to ±18 V (dual). Key electrical specifications include a maximum input offset voltage of 35 µV, a maximum input bias current of 20 nA, and a typical input voltage noise density of 1 nV/√Hz. It provides a minimum common-mode rejection ratio of 120 dB at maximum gain.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low noise performance with 1 nV/√Hz input voltage noise for high-resolution signal integrity
• Precision super-beta input transistors providing exceptionally low input bias current
• High common-mode rejection ratio of up to 120 dB across the full input range
• Current feedback topology enabling high bandwidth and fast settling times for rapid signals

Instrumentation, Op Amps, Buffer Amps Applications

• Analog input modules
• Microphone preamplifiers
• Electrocardiogram (ECG) systems
• Surgical equipment
• Process analysis sensors

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix DR indicates the 8-SOIC surface-mount package variant. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the operating temperature range of -40°C to +125°C aligns with your environmental constraints. Cross-reference the manufacturer part number against official datasheets to avoid counterfeit components.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when ultra-low noise and high precision are critical for small signal amplification. The wide supply voltage range supports both single and dual power configurations. Consider the 28 MHz bandwidth for applications requiring fast signal processing. Evaluate the 8-SOIC footprint compatibility during PCB layout design. Compare input bias current specifications against other instrumentation amplifiers if source impedance is high.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the INA849 family of instrumentation amplifiers designed for high-accuracy applications. It utilizes advanced manufacturing processes to achieve low offset voltage and drift. The series is optimized for direct driving of high-resolution analog-to-digital converters. It serves as a robust solution for demanding industrial and medical sensing environments.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

No public confirmed substitute part numbers are available.