P r o d u c t I n n o v a t i o n F r o m

MP400

MP400U

1

MP400

General DescriPtion

The MP400FC combines a high voltage, high speed

precision power op amp with a supply voltage boost

function in an integrated thermally conductive mod-

ule. The voltage boost function uses a switch mode

power supply (SMPS) to boost the input power supply

voltage. This allows the user the benefits of using his

standard 12 V or 24 V buss without the need to de-

sign a high voltage supply to power the op amp. The

SMPS voltage is adjustable from 50-350 V, allowing for

op amp output voltages up to 340 V. External phase

compensation provides the user with the flexibility to

tailor gain, slew rate and bandwidth for a specific ap-

plication. The unique design of this amplifier provides

extremely high slew rates in pulse applications while

maintaining low quiescent current. The output stage is

well protected with a user defined current limit. Safe

Operating Area (SOA) must be observed for reliable

operation.

FeatUres

♦ Low Cost

♦ Wide Common Mode Range

♦ Standard Supply Voltage

♦ Single Supply: 10 V to 50 V

♦ Output Current - 150 mA Continuous

♦ Output Voltage 50-350 V

♦ 350 V/µS Slew Rate

♦ 200 kHz Power Bandwidth

applications

♦ Piezoelectric positioning and Actuation

♦ Electrostatic Deflection

♦ Deformable Mirror Actuators

♦ Chemical and Biological Stimulators

15

12

13

14

21

24

25

23

22

28 29 30 31 32 33

27

26

34

40

39

41

36

1

2

42

38

37

4

8

C8

AMP

R19

C6

R15

R14

R8

D1

Q2

L1

SMPS

CONTROLLER

R17

R7

Rset

Power GND

35

L2

6

Vbias

Vin (10V to 50V)

Analog

GND

-Vs

+IN

-IN

Vboost

LFin

+Vs

Cr+

Cc+

Out

Ilim

Cc-

Cr-

Power Operational Amplifiers

MP400FC

P r o d u c t I n n o v a t i o n F r o m

eqUivalent circUit DiaGraM

Copyright © Cirrus Logic, Inc. 2009

(All Rights Reserved)

http://www.cirrus.com

aUG 2009

APEX − MP400UREVE