ADA4870ACPZ-R7

The ADA4870 is a unity-gain stable, high-speed current feedback amplifier capable of delivering 1 A output current and 2500 V/μs slew rate from a 40 V supply. The device features an innovative architecture that enables high output power and high-speed signal processing solutions in applications requiring low-impedance load driving. The ADA4870 is ideal for driving high-voltage power FETs, piezoelectric transducers, PIN diodes, CCD panels, and a wide range of other applications demanding high output current and high-speed operation at elevated supply voltages. The device is housed in a 48-lead frame chip-scale package with an exposed pad for high thermal conductivity, enabling efficient heat dissipation in demanding applications to enhance performance and reliability. The ADA4870 operates over a temperature range of -40°C to +85°C.

Applications

• Envelope tracking
• Power FET drive
• Ultrasound equipment
• Piezoelectric driver
• PIN diode driver
• Waveform generation
• Automatic test equipment
• CCD panel driver
• Composite amplifier

Key features

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