AD8460 Arbitrary Waveform Generator

ADI's AD8460 “bits in, power out” high voltage, high-power, high-speed driver is optimized for large output current (up to ±1 A) and high slew rate (up to ±1800 V/μs) at high voltage (up to ±40 V) into capacitive loads. Combining a 14-bit high-speed DAC, a high voltage, high output current (HV-HI) analog driver, and fault monitoring and protection circuits, the AD8460 is ideally suited for high power applications such as arbitrary waveform generation (AWG), programmable power supplies, and high voltage automated test equipment (ATE).

A proprietary high-voltage BCDMOS process, novel high-voltage architecture, and thermally enhanced package from Analog Devices enable this high-performance driver. A digital engine implements user-configurable features: modes for digital input, programmable supply current, and fault monitoring and programmable protection settings for output current, output voltage, and junction temperature. Analog features extend functionality: external compensation enables unlimited capacitive load drive, programmable shutdown delay, and full-scale adjustment. The AD8460 operates on high voltage dual supplies up to ±55 V and a single low voltage supply of 5 V.

The EVAL-AD8460SDZ board enables easy evaluation of the AD8460. The evaluation board provides a platform for quick and easy evaluation of the AD8460 for various user-defined configurations. The evaluation board hardware and software enable full operation of the AD8460 analog pattern generation (APG) and arbitrary waveform generation (AWG) modes.

Features and Benefits

• Wide high voltage supply range: ±12 V to ±55 V
• High output capability
• Output voltage range: Up to ±40 V
• High output current drive: 1 A continuous
• High slew rate: ≥1800 V/μs into 1000 pF load
• Large signal bandwidth: 1 MHz
• Extensive programming and diagnostics
• 14-bit resolution arbitrary waveform generation (AWG) mode
• 16-level analog pattern generation (APG) mode
• Digitally programmable current, voltage, and thermal fault monitoring and protection
• Programmable supply current with shutdown mode
• Design-in friendly
• Unlimited capacitive load drive with external compensation and slew control
• Package: 80-pin, 12 mm x 12 mm TQFP
• EPAD-up package for mountable heatsink
• Operating temperature range: -40°C to +85°C