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LT1498/LT1499

10MHz, 6V/

µs, Dual/Quad

Rail-to-Rail Input and Output

Precision C-Load Op Amps

FEATURES

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Rail-to-Rail Input and Output

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475

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Gain-Bandwidth Product: 10MHz

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Slew Rate: 6V/

µs

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Low Supply Current per Amplifier: 1.7mA

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Input Offset Current: 50nA Max

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Input Bias Current: 500nA Max

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Open-Loop Gain: 1000V/mV Min

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Low Input Noise Voltage: 12nV/

√Hz Typ

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Wide Supply Range: 2.2V to

±15V

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Large Output Drive Current: 30mA

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Stable for Capacitive Loads Up to 10,000pF

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Dual in 8-Pin PDIP and SO Package

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Quad in Narrow 14-Pin SO

The LT

output precision C-Load

bandwidth product and a 6V/

µs slew rate.

The LT1498/LT1499 are designed to maximize input

dynamic range by delivering precision performance over

the full supply voltage. Using a patented technique, both

input stages of the LT1498/LT1499 are trimmed, one at the

negative supply and the other at the positive supply. The

resulting guaranteed common mode rejection is much

better than other rail-to-rail input op amps. When used as a

unity-gain buffer in front of single supply 12-bit A-to-D

converters, the LT1498/LT1499 are guaranteed to add less

than 1LSB of error even in single 3V supply systems.

With 110dB of supply rejection, the LT1498/LT1499 main-

tain their performance over a supply range of 2.2V to 36V

and are specified for 3V, 5V and

±15V supplies. The inputs

can be driven beyond the supplies without damage or

phase reversal of the output. These op amps remain stable

while driving capacitive loads up to 10,000pF.

The LT1498 is available with the standard dual op amp

configuration in 8-pin PDIP and SO packaging. The LT1499

features the standard quad op amp configuration and is

available in a 14-pin plastic SO package. These devices can

be used as plug-in replacements for many standard op

amps to improve input/output range and precision.

Frequency Response

FREQUENCY (Hz)

100

–50

–30

–10

10

1M

1498 TA02

–70

–90

–60

–40

–20

0

–80

–100

–110

1k

10k

100k

10M

1/2 LT1498

6.81k

1498 TA01

330pF

11.3k

6.81k

1/2 LT1498

5.23k

47pF

1000pF

10.2k

5.23k

100pF

Single Supply 100kHz 4th Order Butterworth Filter

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Driving A-to-D Converters

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Active Filters

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Rail-to-Rail Buffer Amplifiers

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Low Voltage Signal Processing

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Battery-Powered Systems

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

C-Load is a trademark of Linear Technology Corporation.