Linear Technology LT350: Single-ended-to-differential amplifier drives 16-bit ADCs

The 33-MHz, low-noise, rail-to-rail, single-ended-to-differential LT350 amplifier settles to 16 bits in 350 nsec. The device integrates two op amps and matched resistors, creating a differential output from a single-ended, high-impedance input. The input-and-output ADC driver has a 1.9-nV/√Hz input-referred noise density, resulting in a total 8.2-nV/√Hz output-referred noise. Operating on a 2.7 to 12V total supply, the device consumes 4.8 mA of supply current. The amplifier suits 0 to 70, –40 to +85, and –40 to +125°C commercial-, industrial-, and extended-temperature ranges, respectively. Available in lead MSOP-8 and a 3×3-mm DFN packages, the LT6350 ADC costs $2.59 (1000).

Linear Technology, www.linear.com