Maxim > Products > Analog Switches and Multiplexers > MAX4810, MAX4811, MAX4812

MAX4810, MAX4811, MAX4812

Dual, Unipolar/Bipolar, High-Voltage Digital Pulsers

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

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.

Data Sheet

Download this datasheet in PDF formatDownload Rev 0 (PDF, 184kB)
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An evaluation board is available: MAX4810EVKIT

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
   

Key Specifications:

Switches and Multiplexers (Mid and High Voltage)
Part Number Functions VSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
COFF
(pF)
Budgetary
Price
min max See Notes
MAX4811  Pulser 2.7 6 75 $9.34 @1k
See All Switches and Multiplexers (Mid and High Voltage) (312)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.



Diagram

MAX4810, MAX4811, MAX4812: Pin Configuration
Pin Configuration

More Information

New Product Press Release   2008-12-18 ]

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Information Index

Document Ref.: 19-4138 Rev 0; 2008-11-03
This page last modified: 2010-03-10