LT1498/LT1499

14989fe

1

TYPICAL APPLICATION

DESCRIPTION

10MHz, 6V/µs, Dual/Quad

Rail-to-Rail Input and Output

Precision C-Load Op Amps

output precision C-Load™ op amps with a 10MHz gain-

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.

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and C-Load

is a trademark of Linear Technology Corporation. All other trademarks are the property of their

respective owners.

FEATURES

APPLICATIONS

Frequency Response

Single Supply 100kHz 4th Order Butterworth Filter

1/2 LT1498

6.81k

1498 TA01

330pF

11.3k

6.81k

1/2 LT1498

5.23k

47pF

1000pF

10.2k

5.23k

100pF

FREQUENCY (Hz)

100

–50

–30

–10

10

1M

1498 TA02

–70

–90

–60

–40

–20

0

–80

–100

–110

1k

10k

100k

10M