Driving 16-bit ADCs

has announced the release of the LT1994, the latest fully differential amplifier for driving high-resolution analogue-to-digital converters.

With guaranteed operation down to 2.375V and rail-to-rail outputs, it is said to be the industry's only differential amplifier that can directly drive 2.5V and 3V SAR ADCs without the need of a negative supply.

Achieving -94dBc harmonic distortion at 1MHz and an extremely low voltage noise of 3nV/vHz, Linear Technology says the LT1994 provides the widest dynamic range on the lowest supply voltages.

"The trend toward lower voltage, single supply high performance analogue-to-digital converters has created the need for differential amplifiers that can operate on a common supply rail without compromising performance, said Erik Soule, general manager of Linear Technology's signal conditioning product line. "The LT1994 addresses this need, providing customers with a true single supply solution for driving 16-bit ADCs."

Suited for driving 14-bit to 16-bit ADCs such as the LTC1403A-1 and LTC1867L, the LT1994 is reportedly an ‘excellent choice’ for general-purpose differential signal amplification, level shifting, single-ended to differential conversion and differential line driver/receiver applications in industrial, instrumentation and medical applications.