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Dual, Unipolar/Bipolar, High-Voltage Digital Pulsers

The MAX4810/MAX4811/MAX4812 Feature an Active-Clamp Circuitry to Reduce the 2nd Harmonic Output

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • Highly Integrated, High-Voltage, High-Frequency Unipolar/Bipolar Pulser
  • 9Ω Output Impedance and 1.3A (min) Output Current
  • 27Ω Active Clamp
  • Pulser and Clamp Overvoltage Protection (MAX4810/MAX4811)
  • 0 to +220V Unipolar or ±110V Bipolar Outputs
  • Matched Rise/Fall Times and Matched Propagation Delays
  • CMOS-Compatible Logic Inputs
  • 56-Pin, 7mm x 7mm, TQFN Package

Applications/Uses

  • Cleaning Equipment
  • Flaw Detection
  • Piezoelectric Drivers
  • Test Instruments
  • Ultrasound Medical Imaging

Description

The MAX4810/MAX4811/MAX4812 integrated circuits generate high-voltage, high-frequency, unipolar or bipolar pulses from low-voltage logic inputs. These dual pulsers feature independent logic inputs, independent high-voltage pulser outputs with active clamps and independent high-voltage supply inputs.

The MAX4810/MAX4811/MAX4812 feature a 9Ω output impedance for the high-voltage outputs, and a 27Ω impedance for the active clamp. The high-voltage outputs are guaranteed to provide 1.3A output current.

All devices use three logic inputs per channel to control the positive and negative pulses and active clamp. Also included are two independent enable inputs. Disabling EN ensures the output MOSFETs are not accidentally turned on during fast power-supply ramping. This allows for faster ramp times and smaller delays between pulsing modes. A low-power shutdown mode reduces power consumption to less than 1µA. All digital inputs are CMOS compatible.

The MAX4810 includes clamp output overvoltage protection, while the MAX4811 features both pulser output and clamp output overvoltage protection. The MAX4812 does not provide overvoltage protection. See the Ordering Information/Selector Guide in the full data sheet.

The MAX4810/MAX4811/MAX4812 are available in a 56-pin (7mm x 7mm), TQFN exposed-pad package and are specified over the 0°C to +70°C commercial temperature range.

Simplified Block Diagram

MAX4810, MAX4811, MAX4812: Pin Configuration MAX4810, MAX4811, MAX4812: Pin Configuration Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.