MSK600 [MSK]

WIDE BANDWIDTH HIGH VOLTAGE AMPLIFIER; 宽带宽高电压放大器


型号：	MSK600
厂家：	M.S. KENNEDY CORPORATION
描述：	WIDE BANDWIDTH HIGH VOLTAGE AMPLIFIER 宽带宽高电压放大器放大器高压
文件：	总6页 (文件大小：189K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

ISO 9001 CERTIFIED BY DSCC

WIDE BANDWIDTH

HIGH VOLTAGE AMPLIFIER

600

M.S.KENNEDY CORP.

4707 Dey Road Liverpool, N.Y. 13088

(315) 701-6751

MIL-PRF-38534 QUALIFIED

FEATURES:

Ultra Low Quiescent Current - ±15mA for High Voltage

150V Peak to Peak Output Voltage Swing

Slew Rate - 4200V/µS Typical

Gain Bandwidth Product - 550 MHz Typical

Full Power Output Frequency - 9 MHz Typical

Output Current - 250mA Peak

Adjustable VHV Power Supply Minimizes Power Dissipation

Compact Package Offers Superior Power Dissipation

DESCRIPTION:

The MSK 600(B) is a high voltage wideband amplifier designed to provide large voltage swings at high slew rates

in wideband systems. The true inverting op-amp topology employed in the MSK 600 provides excellent D.C. specifi-

cations such as input offset voltage and input bias current. These attributes are important in amplifiers that will be

used in high gain configurations since the input error voltages will be multiplied by the system gain. The MSK 600

achieves impressive slew rate specifications by employing a feed forward A.C. path through the amplifier, however,

the device is internally configured in inverting mode to utilize this benefit. Internal compensation for gains of -5V/V or

greater keeps the MSK 600 stable in this range. The MSK 600 is packaged in a space efficient, hermetically sealed,

12 pin power dual in line package that has a high thermal conductivity for efficient device cooling.

EQUIVALENT SCHEMATIC

PIN-OUT INFORMATION

TYPICAL APPLICATIONS

1 COMP

2 +VCC

3 GROUND

4 -VCC

5 -INPUT

+VHV

+VSC

OUTPUT

CASE/GROUND

-VSC

Wideband High Voltage Amplifier

High Resolution CRT Monitor

Ultra High Performance Video Processing

CRT Beam Intensity Control

Varactor Tuned VCO Driver

Automatic Test Equipment

6 NO CONNECTION

-VHV

Rev. A 8/00

ABSOLUTE MAXIMUM RATINGS

±VHV

±VIN

±VCC

θJC

Supply Voltage

±90VDC TST

±VCC TLD

±18VDC

Storage Temperature Range -65°C to +150°C

Input Voltage Range

Supply Voltage (Input Stage)

Thermal Resistance

(Output Devices)

Lead Temperature Range

(10 Seconds)

300°C

30°C/W TC

Case Operating Temperature

MSK600

MSK600B

-40°C to +85°C

-55°C to +125°C

150°C

Junction Temperature

ELECTRICAL SPECIFICATIONS

MSK 600B

Typ.

MSK 600

Units

Group A

Parameter

Test Conditions

Min.

Typ.

Max.

Subgroup

STATIC

VIN=0 @ +VCC

VIN=0 @ -VCC

VIN=0 @ +VHV

VIN=0 @ -VHV

1.0

2.0

1.5

1,2,3

Quiescent Current

±1.0

±2.0

±1.0

±2.0

±10

±5.0

VIN=0

Input Offset Voltage

±10.0

250

2,3

500

Input Bias Current

100

±10

±15

±80

300

2,3

VIN=0

±VCC

±VHV

Input Offset Voltage Drift 2

±10

±15

±80

µV/°C

±50

±18

±90

±12

±50

±12

±50

±18

±90

Power Supply Range

DYNAMIC CHARACTERISTICS

Output Voltage Swing

f=1KHz

±72

±250

±70

±72

Peak Output Current 2

±200

±200 ±250

MHz

V/µS

V0=±70V

V0=±1.0V

V0=±70V

f=1KHz

Full Power Output

3000

Unity Gain Bandwidth

100

4200

100

200

500

100

Slew Rate

2500 4200

Voltage Gain

100

200

500

AV=-10V/V VO=±60V

Settling Time to 1%

Settling Time to 0.1%

NOTES:

1 Unless otherwise specified, ±V^CC=±15VDC, ±VHV=±80VDC, CL=8pF (probe capacitance) and AV=10V/V.

2 This parameter is guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only.

3 Industrial grade devices shall be tested to subgroups 1 and 4 unless otherwise specified.

4 Military grade devices ('B' suffix) shall be 100% tested to subgroups 1,2,3 and 4.

5 Subgroup 1,4

Subgroup 2,5

Subgroup 3,6

TA=TC=+25°C

TA=TC=+125°C

TA=TC=-55°C

Rev. A 8/00

APPLICATION NOTES

FEED FORWARD TOPOLOGY

The MSK 600 employs a circuit topology known as "feed

forward". This inverting configuration allows the user to real-

ize the excellent D.C. input characteristics of a differential am-

plifier without losing system bandwidth. The incoming signal

is split at the input into its A.C. and D.C. component. The D.C.

component is allowed to run through the differential amplifier

where any common mode noise is rejected. The A.C. compo-

nent is "fed forward" to the output section through a very high

speed linear amplifier where it is mixed back together with the

D.C. component. The result is an amplifier with most of the

benefits of a differential amplifier without the loss in system

bandwidth.

VOLTAGE

GAIN

R^F

-RIN

-10V/V

1KΩ

249Ω

100Ω

0.5-5pF

N/A

10KΩ

5KΩ

-20V/V

-50V/V

N/A

5KΩ

Table 1

CURRENT LIMIT

INTERNAL COMPENSATION

Figure 2 is the recommended active short circuit protection

scheme for the MSK 600. The following formula may be used

for setting current limit:

Since the MSK 600 is a high voltage amplifier, it is com-

monly used in circuits employing large gains. Therefore, the

internal compensation was chosen for gains of -5V/V or greater.

In circuits running at gains of less than -5V/V, the user can

further compensate the device by adding compensation net-

works at the input or feedback node. Pin 1 (comp) should be

bypassed with a 0.1uF ceramic capacitor to +VHV for all appli-

cations.

Current Limit ≈ 0.6V / Rsc

RBASE must be selected based on the value of ±VHV as fol-

lows:

RBASE = ((+VHV - (-VHV)) - 1.2V) / 4mA

HIGH VOLTAGE SUPPLIES

This formula guarantees that Q2 and Q4 will always have suf-

ficient base current to be in operation. This circuit can be made

tolerant of high frequency output current spikes with the addi-

tion of CSC. The corresponding time constant would be:

The positive and negative high voltage supplies on the MSK

600 can be adjusted to reduce power dissipation. The output

of the MSK 600 will typically swing to within 8V of either high

voltage power supply rail. Therefore, if the system in question

only needs the output of the amplifier to swing ±40V peak,

the power supply rails could be set to ±50V safely. For best

performance, the minimum value of ±VHV should be ±50VDC.

Unbalanced power supply rails are also allowed as long as one

or the other is not decreased to below 30V or above 90V. The

high voltage and low voltage power supplies should be decoupled

as shown in Figure 1.

T = (RSC) (CSC)

A common value for CSC is approximately 1000pF. If current

limit is unnecessary, short pin 7 to pin 8 and pin 11 to pin 12 as

shown in Figure 1.

TRANSITION TIMES

Transition time optimization of the MSK 600 follows the same

basic rules as most any other amplifier. Best transition times

will be realized with minumum load capacitance, minimum ex-

ternal feedback resistance and lowest circuit gain. Transition

times will degrade if the output is driven too close to either

supply rail. Feedback and input resistor values will affect tran-

sition time as well. See Figure 1 and Table 1 for recommended

component values.

Figure 1

Figure 2

Rev. A 8/00

MECHANICAL SPECIFICATIONS

NOTE: ESD Triangle indicates Pin 1.

ALL DIMENSIONS ARE ±0.010 INCHES UNLESS OTHERWISE LABELED

ORDERING INFORMATION

Part

Screening Level

Number

Industrial

MSK600

MSK600B

Military-Mil-PRF-38534

M.S. Kennedy Corp.

4707 Dey Road, Liverpool, New York 13088

Phone (315) 701-6751

FAX (315) 701-6752

www.mskennedy.com

The information contained herein is believed to be accurate at the time of printing. MSK reserves the right to make

changes to its products or specifications without notice, however, and assumes no liability for the use of its products.

Rev. A 8/00

MSK600 [MSK]

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