LT1469CDF#TRPBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1469CDF#TRPBF is a dual precision high-speed operational amplifier featuring 16-bit accuracy. It offers a gain bandwidth product of 90MHz and a slew rate of 22V/µs, ensuring fast settling times of 900ns for 10V steps. The device operates within a supply voltage range of ±5V to ±15V, with a maximum input offset voltage of 225µV at ±15V. Packaged in a space-saving 12-lead 4mm × 4mm plastic DFN, it supports an operating temperature range from 0°C to 70°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Combines high speed performance with 16-bit DC precision
• Optimized input bias current cancellation for inverting applications
• Unity-gain stable with low distortion characteristics
• Space-saving leadless package design

Instrumentation, Op Amps, Buffer Amps Applications

• High accuracy data acquisition systems
• 16-bit DAC current-to-voltage converters
• ADC buffers requiring full AC and DC performance
• Low distortion active filters
• Photodiode amplifiers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm that the C-grade designation corresponds to the commercial temperature range of 0°C to 70°C rather than the industrial grade. Ensure compatibility with the 12-lead DFN footprint during PCB layout planning.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for designs demanding both high slew rate and precise DC accuracy. The optimized input bias current makes it suitable for inverting configurations like I-to-V converters. Consider the 90MHz bandwidth for applications requiring reduced distortion at higher frequencies while maintaining 16-bit resolution.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LT1469 family of dual precision amplifiers. It shares core electrical characteristics with other variants like the LT1469AIDF but differs in temperature grading and package type. The single-channel equivalent is the LT1468. The family is designed for applications bridging the gap between general-purpose op amps and specialized precision instruments.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Consult manufacturer documentation for verified substitutes. Direct replacements must match the 12-lead DFN package and 90MHz bandwidth. Verify if alternative grades meet the required 0°C to 70°C operating range without compromising the 16-bit accuracy specifications.

Instrumentation, Op Amps, Buffer Amps FAQ

How does the input bias current cancellation affect source resistance selection?

Balanced source resistance is not recommended because the bias current cancellation circuitry is trimmed for zero common mode voltage. Using balanced resistors can degrade DC accuracy and increase noise.

What is the recommended feedback capacitor value for stability with high resistance?

For feedback resistors greater than 2kΩ, use a feedback capacitor CF > RG • CIN/RF to cancel the input pole. For unity gain with large feedback resistors, CF should be greater than or equal to CIN.