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ADA4817-2

ADA4817-2 Series

Single, Low Noise, 1 GHzFastFETOp Amplifier

Manufacturer: Analog Devices

Catalog

Single, Low Noise, 1 GHzFastFETOp Amplifier

Key Features

• High speed−3 dB bandwidth (G = 1, RL= 100 Ω): 1050 MHzSlew rate: 870 V/μs0.1% settling time: 9 ns
• −3 dB bandwidth (G = 1, RL= 100 Ω): 1050 MHz
• Slew rate: 870 V/μs
• 0.1% settling time: 9 ns
• Input bias current: 2 pA typical
• Input capacitanceCommon-mode capacitance: 1.3 pF typicalDifferential mode capacitance: 0.1 pF typical
• Common-mode capacitance: 1.3 pF typical
• Differential mode capacitance: 0.1 pF typical
• Low input noiseVoltage noise: 4 nV/√Hzat 100 kHzCurrent noise: 2.5 fA/√Hzat 100 kHz
• Voltage noise: 4 nV/√Hzat 100 kHz
• Current noise: 2.5 fA/√Hzat 100 kHz
• Low distortion: −90 dBc at 10 MHz (G = 1, RL= 1 kΩ)
• Linear output current: 40 mA
• Supply quiescent current per amplifier: 19 mA typical
• Powered down supply quiescent current per amplifier: 1.5 mA typical

Description

AI
The ADA4817-1 (single) and ADA4817-2 (dual)FastFET™amplifiers are unity-gain stable, ultrahigh speed, voltage feedback amplifiers with FET inputs. These amplifiers were developed with the Analog Devices, Inc., proprietary eXtra fast complementary bipolar (XFCB) process, which allows the amplifiers to achieve ultralow noise (4 nV/√Hz; 2.5 fA/√Hz) as well as very high input impedances.With 1.3 pF of input capacitance, low noise (4 nV/√Hz), low offset voltage (2 mV maximum), and 1050 MHz −3 dB bandwidth, the ADA4817-1/ADA4817-2 are ideal for data acquisition front ends as well as wideband transimpedance applications, such as photodiode preamps.With a wide supply voltage range from 5 V to 10 V and the ability to operate on either single or dual supplies, the ADA4817-1/ADA4817-2 are designed to work in a variety of applications including active filtering and analog-to-digital converter (ADC) driving. The ADA4817-1 is available in a 3 mm × 3 mm, 8-lead LFCSP and 8-lead SOIC, and the ADA4817-2 is available in a 4 mm × 4 mm, 16-lead LFCSP. These packages feature a low distortion pinout that improves second harmonic distortion and simplifies circuit board layout. They also feature an exposed pad that provides a low thermal resistance path to the printed circuit board (PCB). The EPAD enables more efficient heat transfer and increases reliability. These products are rated to work over the extended industrial temperature range (−40°C to +105°C).ApplicationsPhotodiode amplifiersData acquisition front endsInstrumentationFiltersADC driversOutput buffers