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LTC6403-1 - 200MHz, Low Noise, Low Power Fully Differential Input/Output Amplifier/Driver

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 low pass 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 85°C temperature range.

Features 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 Typical Application

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

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