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LT1783

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Rail-to-Rail Input and Output

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Micropower: 300

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Small SOT-23 Package

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Gain Bandwidth product: 1.25MHz

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Slew Rate: 0.42V/

µs

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Low Input Offset Voltage: 800

µV Max

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Single Supply Input Range: 0V to 18V

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High Output Current: 18mA Min

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Specified on 3V, 5V and

±5V Supplies

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Output Shutdown on 6-Lead Version

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Reverse Battery Protection to 18V

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High Voltage Gain: 1500V/mV

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Operating Temperature Range: – 40

°C to 85°C

The LT

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 300

µA 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

unique feature of this device is its Over-The-Top

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 5

µA. The

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

SOT-23 packages. For applications requiring lower power,

refer to the LT1782.

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Portable Instrumentation

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Battery- or Solar-Powered Systems

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Sensor Conditioning

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Supply Current Sensing

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Battery Monitoring

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MUX Amplifiers

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4mA to 20mA Transmitters

1.25MHz, Over-The-Top

Micropower, Rail-to-Rail

Input and Output Op Amp in SOT-23

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

Over-The-Top is a trademark of Linear Technology Corporation.

–

+

LT1783

0V TO 4.3V

2N3904

2k

200

Ω

1783 TA01

5V

5V TO 18V

200

Ω

0.2

Ω

LOAD

Positive Supply Rail Current Sense

APPLICATIO S

FEATURES

TYPICAL APPLICATIO

DESCRIPTIO

Distribution of Input Offset Voltage

–900

–600

–300

0

300

600

900

INPUT OFFSET VOLTAGE (

µV)

1782 G25

25

20

15

10

5

0