A600D
Dual Channel High Voltage Linear Amplifiers
- Category: Dual Channel High Voltage Linear Amplifiers
- Manufacturer: Pendulum Instruments
- Channels: 2 channels (dual independent outputs)
- Voltage gain: fixed 100 (×100)
- Maximum output voltage: ±300 V bipolar
- Maximum input signal amplitude: ±3 V
- Data sheet: Download PDF
- External link: Official product page
Overview
The A600D dual-channel high voltage linear amplifier is built from two entirely independent A600 amplifier circuits sharing the ground reference and power supply of one enclosure, giving the highest channel density where bench space is limited. Each channel has a fixed voltage gain of 100, amplifying any signal source within ±3 V to a bipolar high voltage output of ±300 V, with a continuous output current limit of 75 mA per channel and about 30 W of output power. The maximum slew rate is set at the factory to 300 V/µs, corresponding to a maximum capacitive load of 300 pF, which suits typical capacitive loads such as piezo actuators, MEMS sensors, OLED displays and liquid crystal drive. A built-in microfuse (rated 15 mA) opens automatically if the input signal exceeds 500% of the maximum rating, protecting the amplifier from damage and keeping both operation safe and instrument life long. The A600D's frequency response extends from DC into the megahertz range, and a complete Bode plot is supplied showing full-scale and small-signal frequency response with no load and with a 400 pF capacitive load, so an engineer can assess the bandwidth under real operating conditions.
Key features
- Dual independent outputs — Two A600 amplifier circuits coexist in one enclosure, sharing power supply and ground reference, driving two independent loads at once and raising laboratory measurement throughput considerably.
- ±300 V bipolar high voltage output — Each channel provides a bipolar high voltage output of up to ±300 V at 75 mA continuous, meeting the drive requirements of piezo actuators and capacitive loads.
- High 300 V/µs slew rate — The factory-set slew rate reaches 300 V/µs, and together with the 300 pF maximum capacitive load it keeps fast signals whole and linear.
- Very wide DC to MHz response — Frequency response extends from DC into the megahertz range, and the ultra-linear output suits broadband measurement of many kinds, with a Bode plot supplied for the engineer to verify against.
- Microfuse overload protection — A built-in microfuse (rated 15 mA) blows automatically if the input signal exceeds 500% of the maximum rating, protecting the amplifier circuit effectively and keeping operation safe.
- Piezo and MEMS drive applications — Designed for high-impedance capacitive loads such as piezo actuators, MEMS devices, OLED displays and liquid crystal drive, it is widely used in the R&D and test environments of research institutes and component manufacturers.
Typical applications
- Synchronous drive of piezo actuators on an XY stage — The XY nanopositioning stage of a scanning probe microscope (SPM) or atomic force microscope (AFM) needs two mutually independent, low-distortion high voltage signals to drive the X and Y axis piezo actuators together. The A600D's dual-channel architecture shares a ground reference and amplifies the ±3 V scan signal of a standard function generator 100 times to ±300 V, securing nanometre positioning accuracy with very low non-linearity error.
- Characterising and verifying MEMS devices — When an R&D laboratory evaluates electrostatically driven or piezoelectric MEMS devices — micropumps, micromirror arrays, microresonators — it needs broadband high voltage excitation from DC to several hundred kHz and simultaneous monitoring of two responses. The A600D provides two linear amplification channels, so an engineer can apply a differential bias or run a two-port network analysis at the same time, shortening the characterisation cycle considerably.
- Structural vibration excitation and active noise cancellation verification — Vibration test benches in aerospace and precision mechanics often use a pair of piezo patches, one as the exciter and one as the sensing feedback element, requiring two high voltage amplified signals with controllable phase and linear output out to MHz bandwidth. The A600D's dual-channel design lets an engineer drive both the excitation and the compensation channel of an active structure from one instrument, reducing the measurement noise caused by ground loop differences between separate units.
Key specifications
Key specifications for A600D, as published by Pendulum Instruments. For the full datasheet or a customized configuration, please get in touch.
| Channels | 2 channels (dual independent outputs) |
|---|---|
| Voltage gain | fixed 100 (×100) |
| Maximum output voltage | ±300 V bipolar |
| Maximum input signal amplitude | ±3 V |
| Continuous output current (per channel) | 75 mA |
| Output power (per channel) | about 30 W |
| Slew rate (factory setting) | 300 V/µs |
| Maximum capacitive load | 300 pF |
| Frequency range | DC into the megahertz (MHz) range |
| Overload protection | microfuse rated 15 mA (blows when the input exceeds 500% of the maximum) |
| Grounding | both channels share a ground reference and power supply |
Frequently asked questions
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