MAX14811 Datasheet, PDF(1/20 Page) Maxim Integrated Products – Dual, Unipolar/Bipolar, High-Voltage Digital Pulsers with Fault Condition Management

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MAX14811

Dual, Unipolar/Bipolar, High-Voltage Digital Pulsers

with Fault Condition Management

General Description

The MAX14811 integrated circuit generates high-voltage,

high-frequency unipolar or bipolar pulses from low-volt-

age logic inputs. The dual pulser features independent

logic inputs, independent high-voltage pulser outputs

with active clamps, and independent high-voltage sup-

ply inputs.

The device features fault condition management to pro-

tect the outputs. The outputs enter three-state if both

INP_ and INN_ are logic-high. The device has a 9I

output impedance for the high-voltage outputs and a

27I impedance for the active clamp. The high-voltage

outputs are guaranteed to provide 2.0A (typ) output

current. All the pulser outputs and clamp outputs have

overvoltage protection.

The device uses 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 shorter delays between puls-

ing modes. A low-power shutdown mode reduces power

consumption to less than 1FA. All digital inputs are

CMOS compatible.

The device is available in a 7mm x 7mm, 56-pin TQFN

exposed-pad package, and is specified over the 0NC to

+70NC commercial temperature range.

Features

S Fault Condition Management

S Highly Integrated, High-Voltage, High-Frequency

Unipolar/Bipolar Pulser

S 9I Output Impedance and 2.0A (typ) Output

Current

S 27I Active Clamp

S Pulser and Clamp Overvoltage Protection

S 0 to +220V Unipolar or Â±110V Bipolar Outputs

S Matched Rise/Fall Times and Matched Propagation

Delays

S CMOS-Compatible Logic Inputs

S 7mm x 7mm, 56-Pin TQFN Package

Applications

Ultrasound Medical Imaging

Cleaning Equipment

Industrial Imaging/Flaw Detection

Piezoelectric Drivers

Test Equipment

Ordering Information appears at end of data sheet.

For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX14811.related

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maximâs website at www.maxim-ic.com.

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