Linear Technology Introduces 10GHz Gain Bandwidth Product Dual Differential Amplifier LTC6419

Linear Technology, Inc. (ADI) has introduced the LTC6419, a 10GHz gain-bandwidth dual differential amplifier with a very low input voltage noise density of 1.1nV/√Hz, which enables broadband Signal amplification provides excellent SNR performance.

In addition, the LTC6419 is low distortion, providing 85dB spurious free dynamic range (SFDR) at 100MHz while driving 2VP-P signals. The differential gain of each amplifier is set with 4 external resistors, configurable from unity gain and frequency response over 1 GHz, gains of 100 and 100 MHz bandwidth up to a maximum gain of 400 and 30 MHz bandwidth. At these higher frequencies, the LTC6419 provides much better 95dB channel-to-channel isolation than other similar classes of dual amplifiers. In addition, its wide DC common-mode voltage range (0V to 3.5V at the input and 0.5V to 3.5V at the output) makes the device especially useful in DC-coupled applications that connect two different DC levels, such as from an I The output of the /Q modulator is input to multiple analog-to-digital (A/D) converters.

The LTC6419 dual differential amplifier features DC coupling, low noise and high bandwidth for a wide range of applications such as direct conversion receivers, high sample rate ADCs, high speed data acquisition systems, test instruments, high resolution radar systems, advanced graphics Sensor and LIDAR system.

The LTC6419 has a 2.7V to 5.25V supply voltage range. Each amplifier has a shutdown pin so each amplifier can be independently activated to draw a nominal 52mA supply current. When disabled, the supply current to each amplifier drops to 100μA.

The LTC6419 is available in a small 4mm x 3mm x 0.75mm 20-lead LQFN plastic package. There are two levels of version: the I version has a temperature range of ̶ 40°C to 85°C, and the H version is ̶ 40°C to 125°C.

Relevant LTC64 series products

Author：Brittany Antonia （The author of article owns the copyright.）