Linear Technology LT1368CS8 Linear IC SO8 R-to-R Op Amp LT1368CS8 Data Sheet

1

LT1366/LT1367
LT1368/LT1369

Dual and Quad Precision

Rail-to-Rail Input and Output

Op Amps

■

■

■

µ

■

High Common Mode Rejection Ratio: 90dB

■

High A

VOL

: >1V/

µ

V Driving 10k

Ω

 Load

■

Low Input Bias Current: 10nA

■

Wide Supply Range: 1.8V to 

±

15V

■

Low Supply Current: 375

µ

A per Amplifier

■

High Output Drive: 30mA

■

400kHz Gain-Bandwidth Product

■

Slew Rate: 0.13V/

µ

s

■

Stable for Capacitive Loads up to 1000pF

The LT

®

1366/LT1367/LT1368/LT1369 are dual and quad

bipolar op amps which combine rail-to-rail input and
output operation with precision specifications. These op
amps maintain their characteristics over a supply range of
1.8V to 36V. Operation is specified for 3V, 5V and 

±

15V

supplies. Input offset voltage is typically 150

µ

V, with an

open-loop gain A

VOL

 of 1 million while driving a 10k load.

Common mode rejection is typically 90dB over the full rail-
to-rail input range, and supply rejection is 110dB.

The LT1366/LT1367 have conventional compensation
which assures stability for capacitive loads of 1000pF or
less. The LT1368/LT1369 have compensation that
requires a 0.1

µ

F output capacitor, which improves the

amplifier’s supply rejection and reduces output imped-
ance at high frequencies. The output capacitor’s filtering
action reduces high frequency noise, which is beneficial
when driving A/D converters.

The LT1366/LT1368 are available in plastic 8-pin PDIP and
8-lead SO packages with the standard dual op amp pinout.
The LT1367/LT1369 feature the standard quad pinout,
which is available in a plastic 14-lead SO package. These
devices can be used as plug-in replacements for many
standard op amps to improve input/output range and
precision.

■

Rail-to-Rail Buffer Amplifiers

■

Low Voltage Signal Processing

■

Supply Current Sensing at Either Rail

■

Driving A/D Converters

LOAD CURRENT (mA)

SATURATION VOLTAGE (mV)



V

OUT

 – V

S



0.001

0.1

1

10

1366 TA02

0.01

1000

100

10

1

POSITIVE

RAIL

NEGATIVE
RAIL

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

–

+

1/2 LT1366

R1

200

Ω

1366 TA01

LOAD

I

LOAD

Rs

0.2

Ω

R2
20k

Q1
TP0610L

V

CC

V

O

 = I

LOAD

 • R

S

     = I

LOAD

 • 20

Ω

(  )

–

+

1/2 LT1366

R2
R1