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Dual/Quad, Unipolar/Bipolar, High-Voltage Digital Pulsers

Ideal for High-Voltage Applications Such As Portable Ultrasound Imaging and Industrial Flaw Detection

Product Details

Key Features

Parametric specs for Switches and Multiplexers (Mid and High Voltage)
# Channels 4
Functions Pulser
VSUPPLY (Single) (V) (min) 2.3
VSUPPLY (Single) (V) (max) 6
Package/Pins TQFN/56
Budgetary
Price (See Notes)
27.75
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Simplified Block Diagram

Technical Docs

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Sampling:
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Parameters

Parametric specs for Switches and Multiplexers (Mid and High Voltage)
# Channels 4
Functions Pulser
VSUPPLY (Single) (V) (min) 2.3
VSUPPLY (Single) (V) (max) 6
Package/Pins TQFN/56
Budgetary
Price (See Notes)
27.75

Key Features

  • High-Density Quad-Channel Pulser in One Package
  • 0 to +220V Unipolar or ±110V Bipolar Outputs
  • 8.5Ω (typ) Output Impedance and 2.0A (typ) Output Current
  • 21Ω (typ) Always-On Active Clamp with Integrated Blocking Diodes
  • Integrated Output Diodes (MAX4940A Only)
  • No Special Power-Supply Sequencing Required for Trilevel Applications
  • Matched Rise/Fall Times and Matched Propagation Delays
  • CMOS-Compatible Logic Inputs
  • 56-Pin, 8mm x 8mm, TQFN Package

Applications/Uses

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

Description

The MAX4940/MAX4940A integrated circuits generate high-voltage, high-frequency, unipolar or bipolar pulses from low-voltage logic inputs. These quad/dual pulsers feature independent logic inputs, independent high-voltage pulser outputs with active clamps and independent high-voltage supply inputs.

The MAX4940/MAX4940A feature quad, high-voltage pulsers with 8.5Ω output impedance for the high-voltage outputs and a 21Ω impedance for the active clamp. The high-voltage outputs can provide 2.0A (typ) output current. All devices use two logic inputs per channel to control the positive and negative pulses. The MAX4940/MAX4940A have a dedicated input to control the active clamp. All devices feature an independent enable input EN. All digital inputs are CMOS compatible (see the Ordering Information/Selector Guide in the full data sheet).

The MAX4940/MAX4940A are available in a 56-pin, 8mm x 8mm, TQFN exposed pad package and are specified over the 0°C to +70°C commercial temperature range.

Warning: Exercise caution. The MAX4940/MAX4940A are designed to operate with high voltages.

Simplified Block Diagram

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.