LT1783

1

1783fd

TYPICAL APPLICATION

FEATURES

APPLICATIONS

DESCRIPTION

1.25MHz, Over-The-Top

Micropower, Rail-to-Rail Input

and Output Op Amp in SOT-23

SOT-23 package that operates on all single and split supplies

with a total voltage of 2.5V to 18V. The amplifier draws less

than 300μA of quiescent current and has reverse-battery

protection, drawing negligible current for reverse supply

voltages up to 18V.

The input range of the LT1783 includes ground, and a

tion capabilitity with either or both of its inputs above the

positive rail. The inputs handle 18V both differential and

common mode, independent of supply voltage. The input

stage incorporates phase reversal protection to prevent

false outputs from occurring even when the inputs are 9V

below the negative supply.

The LT1783 can drive loads up to 18mA and still maintain

rail-to-rail capability. A shutdown feature on the 6-lead

version can disable the part, making the output high

impedance and reducing quiescent current to 5μA. The

LT1783 op amp is available in the 5- and 6-lead SOT-23

packages. For applications requiring lower power, refer

to the LT1782.

Positive Supply Rail Current Sense

Distribution of Input Offset Voltage

–900

–600

–300

0

300

600

900

INPUT OFFSET VOLTAGE (μV)

1783 TA01b

25

20

15

10

5

0

–

+

LT1783

0V TO 4.3V

2N3904

2k

200Ω

1783 TA01

5V

5V TO 18V

200Ω

0.2Ω

LOAD

L, LT, LTC, LTM, Linear Technology, the Linear logo and Over-The-Top are registered

trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology

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