ADI ADA4895-1ARZ-R7

The ADA4895-1 (single) and ADA4895-2 (dual) are high speed voltage feedback amplifiers that are gain ≥10 stable with low input noise, rail-to-rail output, and a quiescent current of 3 mA per amplifier. With a 1/f noise of 2 nV/√Hz at 10 Hz and a spurious-free dynamic range (SFDR) of -72 dBc at 2 MHz, the ADA4895-1/ ADA4895-2 are an ideal solution in a variety of applications, including ultrasound, low noise preamplifiers, and drivers of high performance ADCs. The proprietary next generation SiGe bipolar process and innovative architecture enables the high performance of these amplifiers. The ADA4895-1/ADA4895-2 have a small signal bandwidth of 236 MHz at a gain of +10 with a slew rate of 943 V/μs, and settle to 0.1% in 22 ns. The wide supply voltage range (3 V to 10 V) of the ADA4895-1/ADA4895-2 make these amplifiers ideal candidates for systems that require large dynamic range, high gain, precision, and high speed. The ADA4895-1 is available in 8-lead SOIC and 6-lead SOT-23 packages, and the ADA4895-2 is available in a 10-lead MSOP package. All packages operate over the extended industrial temperature range of -40°C to +125°C.

• Low wideband noise 1 nV/√Hz 1.6 pA/√Hz
• Low 1/f noise: 2 nV/√Hz at 10 Hz
• Low distortion (SFDR): −96 dBc at 100 kHz, Vout = 2 V p-p
• Low power: 3 mA per amplifier
• Low input offset voltage: 350 μV maximum
• High speed 236 MHz, −3 dB bandwidth (G = +10), 943 V/μs slew rate, 22 ns settling time to 0.7%
• Rail-to-rail output
• Wide supply range: 3 V to 10 V
• Disable feature

• Low noise preamplifier
• Ultrasound amplifiers
• PLL loop filters
• High performance analog-to-digital converter (ADC) drivers
• Digital-to-analog converter (DAC) buffers