LTC6406IMS8E#PBF High Speed Operational Amplifiers 800 MHz Low Noise Rail to Rail Input Differential Amplifier/Driver

FEATURES

Low Noise: 1.6nV/√Hz RTI

n Low Power: 18mA at 3V

n Low Distortion (HD2/HD3): –80dBc/–69dBc at 50MHz, 2VP-P –104dBc/–90dBc at 20MHz, 2VP-P

n Rail-to-Rail Differential Input

n 2.7V to 3.5V Supply Voltage Range

n Fully Differential Input and Output

n Adjustable Output Common Mode Voltage

n 800MHz –3dB Bandwidth with AV = 1 n Gain-Bandwidth Product: 3GHz

n Low Power Shutdown

n Available in 8-Lead MSOP and Tiny 16-Lead 3mm × 3mm × 0.75mm QFN Packages

APPLICATIONS

Differential Input ADC Driver

n Single-Ended to Differential Conversion

n Level-Shifting Ground-Referenced Signals

n Level-Shifting VCC-Referenced Signals

n High Linearity Direct Conversion Receivers

DESCRIPTION

The LTC®6406 is a very low noise, low distortion, fully differential input/output amplifi er optimized for 3V, single supply operation. The LTC6406 input common mode range is rail-to-rail, while the output common mode voltage is independently adjustable by applying a voltage on the VOCM pin. This makes the LTC6406 ideal for level-shifting signals with a wide common mode range for driving 12-bit to 16-bit single supply, differential input ADCs.

A 3GHz gain-bandwidth product results in 70dB linearity for 50MHz input signals. The LTC6406 is unity-gain stable and the closed-loop bandwidth extends from DC to 800MHz. The output voltage swing extends from near ground to 2V, to be compatible with a wide range of ADC converter input requirements. The LTC6406 draws only 18mA, and has a hardware shutdown feature which reduces current consumption to 300μA

The LTC6406 is available in a compact 3mm × 3mm 16-pin leadless QFN package as well as an 8-lead MSOP package, and operates over a –40°C to 85°C temperature range