LT1124/LT1125

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11245ff

For more information www.linear.com/LT1124

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100% Tested Low Voltage Noise:

2.7nV/√Hz Typ

4.2nV/√Hz Max

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Slew Rate: 4.5V/µs Typ

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Gain-Bandwidth Product: 12.5MHz Typ

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Offset Voltage,

Prime Grade: 70µV Max

Low Grade: 100µV Max

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High Voltage Gain: 5 Million Min

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Supply Current Per Amplifier: 2.75mA Max

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Common Mode Rejection: 112dB Min

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Power Supply Rejection: 116dB Min

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Available in 8-Pin SO Package

Typical applicaTion

DescripTion

Dual/Quad Low Noise,

High Speed Precision Op Amps

The LT®1124 dual and LT1125 quad are high performance

op amps that offer higher gain, slew rate and bandwidth

than the industry standard OP-27 and competing OP-270/

OP-470 op amps. In addition, the LT1124/LT1125 have

than the OP-270/OP-470.

In the design, processing and testing of the device, par-

ticular attention has been paid to the optimization of the

entire distribution of several key parameters. Slew rate,

gain bandwidth and 1kHz noise are 100% tested for each

individual amplifier. Consequently, the specifications

of even the lowest cost grades (the LT1124C and the

LT1125C) have been spectacularly improved compared

to equivalent grades of competing amplifiers.

Power consumption of the LT1124 is one-half of two

OP-27s. Low power and high performance in an 8-pin

SO package make the LT1124 a first choice for surface

mounted systems and where board space is restricted.

For a decompensated version of these devices, with three

times higher slew rate and bandwidth, please see the

LT1126/LT1127 data sheet.

L

, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

Protected by U.S. Patents including 4775884, 4837496.

FeaTures

applicaTions

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Two and Three Op Amp Instrumentation Amplifiers

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Low Noise Signal Processing

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Active Filters

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Microvolt Accuracy Threshold Detection

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Strain Gauge Amplifiers

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Direct Coupled Audio Gain Stages

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Tape Head Preamplifiers

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Infrared Detectors

Instrumentation Amplifier with Shield Driver

Input Offset Voltage Distribution

(All Packages, LT1124 and LT1125)

+

–

1/4

LT1125

1124/25 TA01

+

–

–

+

1/4

LT1125

1/4

LT1125

–15V

15V

OUTPUT

1/4

LT1125

30k

1k

3.4k

100

3.4k

30k

1k

5

4

6

11

7

1

3

2

10

9

8

14

13

12

+

–

INPUT

GUARD

GUARD

= 170kHz

= 400kHz

= 3.8µV/ Hz AT OUTPUT

= 35µV

√

GAIN

POWER BW

SMALL-SIGNAL BW

NOISE

100

+

–

INPUT OFFSET VOLTAGE (µV)

–100

10

20

30

60

1124/25 TA02

–60

–20

DUALS

QUADS

2316 UNITS

TESTED

758

200

100

20

0