LT1809

1

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-

tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.

The LT

output op amp with a 350V/

µs slew rate. The amplifier has

a –3dB bandwidth of 320MHz at unity-gain, a gain-band-

current to fit the needs of low voltage, high performance

signal conditioning systems.

The LT1809 has an input range that includes both supply

rails and an output that swings within 20mV of either

supply rail to maximize the signal dynamic range in low

supply applications.

The LT1809 has very low distortion (–90dBc) up to 5MHz

that allows it to be used in high performance data acqui-

sition systems.

The LT1809 maintains its performance for supplies from

2.5V to 12.6V and is specified at 3V, 5V and

±5V supplies.

The inputs can be driven beyond the supplies without

damage or phase reversal of the output.

The LT1809 is available in the 8-pin SO package with the

standard op amp pinout. This device can be used as a plug-

in replacement for many op amps to improve input/output

range and performance.

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Active Filters

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Rail-to-Rail Buffer Amplifiers

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Driving A/D Converters

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Low Voltage Signal Processing

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Video Line Driver

, LTC and LT are registered trademarks of Linear Technology Corporation.

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s

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Slew Rate: 350V/

µs

s

Wide Supply Range: 2.5V to 12.6V

s

Large Output Current: 85mA

s

Low Distortion, 5MHz: – 90dBc

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Input Common Mode Range Includes Both Rails

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Output Swings Rail-to-Rail

s

Input Offset Voltage, Rail-to-Rail: 2.5mV Max

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Common Mode Rejection: 89dB Typ

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Power Supply Rejection: 87dB Typ

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Open-Loop Gain: 100V/mV Typ

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Shutdown Pin

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8-Pin SO-8 Package

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Operating Temperature Range – 40

°C to 85°C

APPLICATIO S

FEATURES

DESCRIPTIO

TYPICAL APPLICATIO

180MHz, 350V/

µs

Rail-to-Rail Input and Output

Low Distortion Op Amp

January 2000

Final Electrical Specifications

+

–

2

47pF

LT1809

220pF

665

Ω

1809 TA01

232

Ω

232

Ω

+

–

22pF

470pF

562

Ω

274

Ω

274

Ω

LT1809

FREQUENCY (Hz)

10k

100k

1M

10M

100M

1809 TA01a

10

0

–10

–20

–30

–40

–50

–60

–70

–80

–90

Single 3V Supply, 4MHz, 4th Order Butterworth Filter

Filter Frequency Response