Analog Devices Inc. ADA489x Rail-to-Rail Output Amplifiers
Analog Devices Inc. ADA489x Rail-to-Rail Output Amplifiers are unity-gain stable, 1nV/√Hz high-speed, low-noise voltage feedback amplifiers with a quiescent current of 3mA. Developed using Analog Devices’ proprietary next-generation SiGe bipolar process and innovative architecture, the ADA489x Amplifiers provide high-performance operation.
Capable of operating from a wide supply voltage range of 3V to 10V, the ADA489x Amplifiers offer a 230MHz bandwidth, 120V/μs slew rate, and settle to 0.1% in 45ns. With a 1/f noise of 2.4nV/√Hz at 10Hz and a spurious-free dynamic range of −80dBc at 2MHz, the ADA489x Amplifiers are ideal for a variety of applications that require precision, a high dynamic range, low power, and high speed. These applications include but are not limited to ultrasound, low-noise preamplifiers, and drivers of high-performance ADCs.
Features
- Low wideband noise
- 1nV/√Hz
- 2.8pA/√Hz
- 2.4nV/√Hz at 10Hz Low 1/f noise
- −115dBc at 100kHz, VOUT = 2V p-p Low distortion
- 3mA per amplifier low power
- 0.5mV maximum low input offset voltage
- High speed
- 230MHz (G = +1) −3dB bandwidth
- 120V/μs Slew rate
- 45ns Settling time to 0.1%
- Rail-to-rail output
- 3V to 10V Wide supply range
- Disable feature (ADA4897-1 / ADA4897-2)
Applications
- Low noise preamplifier
- Ultrasound amplifiers
- PLL loop filters
- High-performance ADC drivers
- DAC buffers
Evaluation Boards
Analog Devices Inc. Amplifier Mezzanine Cards for ADC Drivers
Analog-to-digital converter (ADC) drivers that evaluate the performance of amplifiers.
Functional Block Diagram
Published: 2013-05-28
| Updated: 2022-03-11