The ADA4805 is a low-power rail-to-rail amplifier for high-speed data acquisition systems that require exceptional accuracy, precision and power efficiency.
The ADA4805-1 and ADA4805-2 are high speed voltage feedback rail-to-rail output amplifiers with exceptionally low quiescent current of 495 μA/amp, making them ideal for low power, high resolution data conversion systems. Despite being low power, these amplifiers provides excellent overall performance. They offer a high bandwidth of 105 MHz at a gain of 1, high slew rate of 160 V/μs, and a low input offset voltage of 125 μV maximum.
Analog Devices' High Speed (>50MHz) Rail-to-Rail op amps enable you to operate at lower supply voltages, swing closer to the rails and provide wider dynamic range. They feature a variety of rail-to-rail op amps that include both rail-to-rail input/output as well as just rail-to-rail output.
Wide bandwidth, high slew rate, low distortion, rail-to-rail - Analog Devices sets performance standards for next generation designs with an extraordinary wide portfolio of leading-edge products.
Features
- Low input offset voltage: 125 μV (maximum)
- Low input offset voltage drift
- 0.2 μV/°C (typical)
- 1.5 μV/°C (maximum)
- Ultralow supply current: 495 μA/amplifier
- Wide supply voltage range: 3 V to 10 V
- High speed performance
- −3 dB bandwidth: 105 MHz
- Slew rate: 160 V/μs
- 0.1% settling time: 35 ns
- Rail-to-rail outputs
- Input common-mode range:
−VS-0.1 V to +VS-1 V - Low noise: 5.9 nV/√Hz at 100 kHz; 0.6 pA/√Hz at 100 kHz
- Low distortion: −102 dBc/−116 dBc HD2/HD3 at 100 kHz
- Low input bias current: 470 nA (typical)
- High speed turn-on time: 3 μs (maximum) fully settled
- 6-lead SC70, 6-lead SOT-23
- Dynamic power scaling
- Small packaging
Applications
- High resolution, high precision analog-to-digital converter (ADC) drivers
- Battery-powered instrumentation
- Micropower active filters
- Portable point of sales terminals
- Active RFID readers
- Photo multipliers
- ADC reference buffers
For developing ADA4805, Analog Devices, Inc has two boards available, 10 lead LFCSP and 8 lead MSOP. These evaluation boards are designed to help users evaluate dual high speed op amps and to help customers quickly prototype new dual op amp circuits and reduce design time.
See user guide UG-129 for 8 lead MSOP and UG-776 for 10 lead LFCSP for further details along with the data sheet.
Fonte - Analog Devices, Inc.
14 de marco de 2015
