ADA4870ARRZ

The ADA4870 is a unity gain stable, high speed current feedback amplifier capable of delivering 1 A of output current and 2500 V/μs slew rate from a 40 V supply. 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 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. The ADA4870 is available in a power SOIC package (PSOP_3), featuring an exposed thermal slug that provides high thermal conductivity, enabling efficient heat transfer for improved performance and reliability in demanding applications. The ADA4870 operates over the industrial temperature range -40°C to +85°C.

Applications

• Envelope tracking
• Power FET driver
• Ultrasound
• Piezo drivers
• PIN diode drivers
• Waveform generation
• Automated test equipment (ATE)
• CCD panel drivers
• Composite amplifiers

Key features

• Ideal for driving high capacitive or low resistive loads
• Wide supply range: 10 V to 40 V
• High output current drive: 1 A
• Wide output voltage swing: 37 V swing with 40 V supply
• High slew rate: 2500 V/μs
• High bandwidth: 52 MHz large signal, 70 MHz small signal
• Low noise: 2.1 nV/√Hz
• Quiescent current: 32.5 mA Power down: 0.75 mA
• Short-circuit protection and flag Current limit: 1.2 A
• Thermal protection