Analog Devices Inc. ADA4870 High Speed High Voltage Drive Amplifier
Analog Devices Inc. ADA4870 High Speed, High Voltage Drive Amplifier is designed as a unity gain stable, high speed current feedback amplifier capable of delivering 1A of output current and 2500V/μs slew rate from a 40V supply.
Developed using the Analog Devices, Inc., proprietary high voltage extra fast complementary bipolar (XFCB) process, the innovative architecture of the ADA4870 enables high output power, high speed signal processing solutions in applications that require driving a low impedance load. The ADA4870 Drive Amplifier is ideal for driving high voltage power FETs, piezo transducers, PIN diodes, CCD panels, and a variety of other demanding applications that require high speed from high supply voltage at high output current.
Features
- Ideal for driving high capacitive or low resistive loads
- 10V to 40V wide supply range
- 1A high output current drive
- Wide output voltage swing of 37V swing with 40V supply
- 2500V/μs high slew rate
- High bandwidth of 52MHz large signal and 70MHz small signal
- 2.1nV/√Hz low noise
- 32.5mA quiescent current
- 0.75mA power down
- Short-circuit protection and flag
- 1.2A current limit
- Thermal protection
Applications
- Envelope tracking
- Power FET driver
- Ultrasound
- Piezo drivers
- PIN diode drivers
- Waveform generation
- Automated test equipment (ATE)
- CCD panel drivers
- Composite amplifiers
Related Development Tool
Analog Devices Inc. EVAL-ADA4870EBZ Evaluation Board
For a quick & easy evaluation of the ADA4870, a high-speed high-voltage current feedback amplifier.
Additional Resources
Design a Powerful Signal Generator Output Stage
How to design a small and inexpensive output stage with a voltage gain amplifier (VGA) and a current feedback amplifier (CFA).
Functional Block Diagram
