MAX4810EVKIT+【PDF 1/20 页】KIT EVAL FOR MAX4810

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19-4138; Rev 0; 10/08

ATION

AILABL

EVALU E

KIT

Dual, Unipolar/Bipolar, High-Voltage

Digital Pulsers

General Description

The MAX4810/MAX4811/MAX4812 integrated circuits

generate high-voltage, high-frequency, unipolar or bipo-

lar 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 9 Ω output

impedance for the high-voltage outputs, and a 27 Ω

impedance for the active clamp. The high-voltage out-

puts 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 puls-

ing 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 pro-

tection, 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.

The MAX4810/MAX4811/MAX4812 are available in a

Features

? Highly Integrated, High-Voltage, High-Frequency

Unipolar/Bipolar Pulser

? 9 Ω Output Impedance and 1.3A (min) Output

Current

? 27 Ω 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

Pin Configuration

TOP VIEW

42 41 40 39 38 37 36 35 34 33 32 31 30 29

56-pin (7mm x 7mm), TQFN exposed-pad package and

are specified over the 0°C to +70°C commercial tem-

perature range.

Applications

C DP2 43

GND 44

V CC2 45

C GC2 46

28 GND

27 V CC2

26 INN2

25 INC2

Ultrasound Medical

Flaw Detection

C DC2 47

24 INP2

Piezoelectric Drivers

Test Instruments

Imaging

Cleaning Equipment

Ordering Information/

Selector Guide

V EE2 48

V DD 49

V SS 50

V EE1 51

C DC1 52

C GC1 53

MAX4810

MAX4811

MAX4812

23 EN2

22 AGND

21 SHDN

20 EN1

19 INP1

18 INC1

PART

PROTECTED

OUTPUTS

OUTPUT

CURRENT

(A)

PIN-

PACKAGE

V CC1 54

GND 55

C DP1 56

*EP

17 INN1

16 V CC1

15 GND

MAX4810 CTN+

OCP_, OCN_

1.3

56 TQFN-EP**

10 11 12 13 14

MAX4811 CTN+

MAX4812 CTN+*

OCP_, OCN_,

OP_, ON_

None

1.3

56 TQFN-EP**

TQFN

7mm x 7mm

Note: All devices are specified over the 0°C to +70°C operating

temperature range.

*EP = EXPOSED PAD, CONNECT EP TO V SS .

+Denotes a lead-free/RoHS-compliant package.

*Future product—contact factory for availability.

**EP = Exposed pad.

Warning: The MAX4810/MAX4811/MAX4812 are designed to operate with high voltages. Exercise caution.

________________________________________________________________ Maxim Integrated Products

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

or visit Maxim’s website at www.maxim-ic.com.

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