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
