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SPT200

FAST SETTLING, WIDEBAND OPERATIONAL AMPLIFIER

Signal Processing Technologies 

FAST SETTLING, WIDEBAND OPERATIONAL AMPLIFIER

General Description

The SPT200 operational amplifier achieves performance far

superior to that of other high performance op amps. A current

feedback design provides a bandwidth of DC-95MHz and an

unprecedented settling time of 18nsec to 0.1%. And since thermal

tail has been eliminated, the SPT200 can be depended upon to

settle fast and solidly maintain its level. Drive capability is also

impressive at 24Vpp and 100mA.

Using the SPT200 is as easy as adding power supplies and a

gain-setting resistor. The result is reliable, consistent perfor-

mance because such characteristics as bandwidth and settling

time are virtually independent of gain setting. Unlike conventional

op amp designs where the optimum gain bandwidth product

occurs at a high gain, minimum settling time at a gain of -1,

maximum slew rate at a gain of +1, et cetera, the SPT200 offers

predictable response at gain settings from ±1 to ±50. This,

coupled with consistent performance from unit to unit with no

external compensation, makes the SPT200 a real time and cost-

saver in design and production situations alike.

Minimizing settling time was a design goal of the SPT200.

Settling time is one of the most demanding of all op amp

requirements since it is affected by the op amp’s bandwidth, gain

flatness, and harmonic distortion. The result of this effort is an

amplifier fast enough for the most demanding high speed D to A

converters and “flash” A to D converters.

The superior slew rate and rise and fall times of the SPT200

make it an ideal amplifier for a broad range of pulse, analog, and

digital applications. Flat gain and phase response from DC to

beyond 50MHz ensure distortion levels well below those of other

op amps. A full power bandwidth of 20MHz eliminates the need

for power buffers in many applications.

The SPT200 is constructed using thin film resistor/bipolar transis-

tor technology, and is available in the following versions:

SPT200AIH -25 to +85 °C 12-pin TO-8 can

SPT200AMH -55 to +125 °C 12-pin TO-8 can, features

burn-in and hermetic testing

Features

s -3dB bandwidth of 95MHz

s 0.1% settling in 18ns

s 4000V/µs slew rate

s Low distortion, linear phase

s 3.6ns rise and fall times

s Direct replacement for CLC200

Applications

s Fast, precision A to D, D to A conversion

s Baseband and video communications

s Radar, sonar, IF processors

s Laser drivers, photodiode preamps

s High-density buffering

s Graphic CRT composite video drive amp

4755 Forge Road, Colorado Springs, Colorado 80907, USA

Phone: (719) 528-2300 FAX: (719) 528-2370 Website: http://www.spt.com E-Mail: sales@spt.com

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