Tucson, Ariz.— Apex Microtechnology is answering the growing demand for power analog ICs that deliver on precision power, performance and value by breaking new ground in high speed, high voltage and low quiescent current silicon design. By combining its own patented IC circuitry with evolving high speed, high voltage fab processes, Apex is bringing to market power amplifiers that deliver the cost-effective performance customers seek.
The PA78, PA86 and PA69 are high speed, high voltage ICs targeted at the growing use of piezo electric devices in industrial and medical markets. Piezos are hailed for their ability to generate extremely fine movement in applications such as commercial ink jet printers and ultrasonic cleaners. This high speed trio provides customers with various combinations of high speed, high voltage and very low standby current. Capable of achieving slew rates of up to 350 V/s on supply voltages of 350 V, the PA78 series bests its nearest competitor by more than 2X. The PA78 series also delivers up to 150 mA of output current while generating very little standby current—less than 1 mA depending on performance requirements.
The intellectual property behind the PA78 series provides the secret to its success. The IC’s design provides for extremely high slew rates in pulse applications while maintaining very low quiescent current of under 1 mA. Slew rate performance is independent of supply current while exhibiting a functional relationship to voltage amplitude. More simply stated, as voltage supply increases, so does slew rate.
Customers Can Simplify Design Challenges with PA78 Series
Target applications for the PA78, PA86 and PA69 will utilize the devices’ abilities to deliver voltage with speed to control precise movement. Customers designing piezo drive and deflection circuits will be extremely pleased with the performance options these ICs make possible. The ICs’ unique input stage has the effect of adding variables to the power response and slew rate characteristics of the amplifier. This also translates to input related effects on open loop gain and phase.
◊Piezo drives in positioning states of photolithographic systems
◊Deflection circuits in displays of mass spectrometers
◊Piezo drives in ultrasonic surgical tools
◊Piezo drives in ultrasonic cleaning systems
◊Deflection circuits in missile guidance systems
Key Specifications for the PA78 Series
The PA69 (±100 V, 50 mA, 200 V/microsecond slew rate, 200 kHz power bandwidth) is priced at $10.50 each in 10k pieces. The PA69A (75 mA, 250 V/microsecond) is $13.60. The PA86 (±100 V, 100 mA, 350 V/microsecond, 300 kHz) is $18.15. The PA86A (±125 V, 150 mA) sells for $21.60. The PA78 (±175 V, 150 mA, 350 V/microsecond, 200 kHz) is priced at $24.85.
Apex Microtechnology, 1-800-546-APEX, www.apexmicrotech.com