KH205AI datasheet(1/7 Pages) CADEKA

Teilenummer	KH205AI

Bauteilbeschribung	Overdrive-Protected Wideband Op Amp

PDF	7 Pages

Scroll/Zoom	100%

Hersteller	CADEKA [Cadeka Microcircuits LLC.]

Direct Link	http://www.cadeka.com

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Features

s -3dB bandwidth of 170MHz

s 0.1% settling in 22ns

s Complete overdrive protection

s Low power: 570mW (190mW at ±5V)

s 3MΩ input resistance

s Output may be current limited

s Direct replacement for CLC205

Applications

s Fast, precision A/D conversion

s Automatic test equipment

s Input/output amplifiers

s Photodiode, CCD preamps

s IF processors

s High-speed modems, radios

s Line drivers

General Description

The KH205 is a wideband overdrive-protected opera-

tional amplifier designed for applications needing

both speed and low power operation.

Utilizing a

well-established current feedback architecture, the

KH205 exhibits performance far beyond that of

conventional voltage feedback op amps. For example,

the KH205 has a bandwidth of 170MHz at a gain of

+20 and settles to 0.1% in 22ns. Plus, the KH205 has

a combination of important features not found in

other high-speed op amps.

For example, the KH205 has been designed to consume

little power – 570mW at ±15V supplies. The result is

lower power supply requirements and less system-

level heat dissipation. In addition, the device can be

operated on supply voltages as low as ±5V for even

lower power dissipation.

Complete overdrive protection has been designed

into the part. This is critical for applications, such as

ATE and instrumentation, which require protection

from signal levels high enough to cause saturation of

the amplifier. This feature allows the output of the

op amp to be protected against short circuits using

techniques developed for low-speed op amps. With

this capability, even the fastest signal sources can

feature effective short circuit protection.

The KH205 is constructed using thin film resistor/bipolar

transistor technology, and is available in the following

versions:

KH205AI

-25°C to +85°C

12-pin TO-8 can

KH205AK

-55°C to +125°C

12-pin TO-8 can, features

burn-in & hermetic testing

KH205AM

-55°C to +125°C

12-pin TO-8 can,

environmentally

screened and electrically

tested to MIL-STD-883

KH205HXC

-55°C to +125°C

SMD#: 5962-9083501HXC

KH205HXA

-55°C to +125°C

SMD#: 5962-9083501HXA

KH205

Overdrive-Protected Wideband Op Amp

REV. 1A January 2004

Large Signal Pulse Response

Time (5ns/div)

2

Av = +20

Av = -20

Supply

Voltage

2000

Ω

8

R

f

7

GND

9

-V

CC

2

NC

3

GND

1

+V

CC

6

V+

5

V-

4

NC

10

-V

CC

V

o

+V

CC

11

12

6

Collector

Supply

Output

Collector

Supply

Voltage

Internal

Feedback

Not Connected

Case

ground

Non-Inverting

Input

Inverting

Input

Not

Connected

Case and

bias ground

+

-

Bottom View

Pin 8 provides access to a 2000

Ω feed-

back resistor which can be connected to

the output or left open if an external feed-

back resistor is desired.

Typical Performance

Gain Setting

Parameter

+7

+20 +50

-1

-20 -50

Units

-3dB bandwidth

220 170

80 220 130 80

MHz

rise time

1.7

2.2

4.7 1.7

2.9 4.7

ns

slew rate

2.4

2.4 2.4

V/ns

settling time (to 0.1%)

22

20

21

20

19

ns

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