Features and Benefits

  • Very Low Distortion: (2VP-P, 3MHz): –95dBc
  • Fully Differential Input and Output
  • Low Noise: 2.8nV/√Hz Input-Referred
  • 200MHz Gain-Bandwidth Product
  • Built-In Clamp: Fast Overdrive Recovery
  • Slew Rate: 200V/μs
  • Adjustable Output Common Mode Voltage
  • Rail-to-Rail Output Swing
  • Input Range Extends to Ground
  • Large Output Current: 60mA (Typ)
  • DC Voltage Offset <1.5mV (Max)
  • 10.8mA Supply Current
  • 2.7V to 5.25V Supply Voltage Range
  • Low Power Shutdown
  • Tiny 3mm × 3mm × 0.75mm 16-Pin QFN Package

Product Details

The LTC6403-1 is a precision, very low noise, low distortion, fully differential input/output amplifier optimized for 3V to 5V, single supply operation. The LTC6403-1 is unity gain stable. The LTC6403-1 closed-loop bandwidth extends from DC to 200MHz. In addition to the normal unfiltered outputs (+OUT and –OUT), the LTC6403-1 has a built-in 44.2MHz differential single-pole lowpass filter and an additional pair of filtered outputs (+OUTF, and –OUTF). An input referred voltage noise of 2.8nV/√Hz enables the LTC6403-1 to drive state-of-the-art 14- to 18-bit ADCs while operating on the same supply voltage, saving system cost and power. The LTC6403-1 maintains its performance for supplies as low as 2.7V. It draws only 10.8mA, and has a hardware shutdown feature which reduces current consumption to 170μA.

The LTC6403-1 is available in a compact 3mm × 3mm 16-pin leadless QFN package and operates over a –40°C to 125°C temperature range.


  • Differential Input A/D Converter Driver
  • Single-Ended to Differential Conversion/Amplification
  • Common Mode Level Translation
  • Low Voltage, Low Noise, Signal Processing

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (2)

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.