LT1790ACS6-1.25#TR datasheet, PDF

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LT1790ACS6-1.25#TR: DescriptionV-RefPrecision1.25V5mA6-PinTSOT-23T/R; File Size466KB，26 Pages; ManufacturerON Semiconductor; Websitehttp://www.onsemi.cn

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LT1790ACS6-1.25#TR Overview

V-RefPrecision1.25V5mA6-PinTSOT-23T/R

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LT1790

Micropower SOT-23

Low Dropout Reference Family

FEATURES

DESCRIPTION

The

1790

is a family of SOT-23 micropower low dropout

series references that combine high accuracy and low drift

with low power dissipation and small package size. These

micropower references use curvature compensation to

obtain a low temperature coefficient and trimmed preci-

sion thin-film resistors to achieve high output accuracy. In

addition, each LT1790 is post-package trimmed to greatly

reduce the temperature coefficient and increase the output

accuracy. Output accuracy is further assured by excellent

line and load regulation. Special care has been taken to

minimize thermally induced hysteresis.

The LT1790s are ideally suited for battery-operated

systems because of their small size, low supply current

and reduced dropout voltage. These references provide

supply current and power dissipation advantages over

shunt references that must idle the entire load current to

operate. Since the LT1790 can also sink current, it can

operate as a micropower negative voltage reference with

the same performance as a positive reference.

LT, LTC, LTM, Linear Technology and the Linear logo 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.

High Accuracy:

A Grade—0.05% Max

B Grade—0.1% Max

Low Drift:

A Grade—10ppm/°C Max

B Grade—25ppm/°C Max

Low Thermal Hysteresis 40ppm (Typical) –40°C to 85°C

Low Supply Current: 60µA Max

Sinks and Sources Current

Low Dropout Voltage

Guaranteed Operational –40°C to 125°C

Wide Supply Range to 18V

Available Output Voltage Options: 1.25V, 2.048V,

2.5V, 3V, 3.3V, 4.096V and 5V

Low Profile (1mm) ThinSOT™ Package

APPLICATIONS

Handheld Instruments

Negative Voltage References

Industrial Control Systems

Data Acquisition Systems

Battery-Operated Equipment

TYPICAL APPLICATION

Positive Connection for LT1790-2.5

2.6V ≤ V

≤ 18V

0.1µF

LT1790-2.5

1, 2

1µF

NUMBER OF UNITS

1790 TA01

Typical V

OUT

Distribution for LT1790-2.5

OUT

= 2.5V

167 UNITS

LT1790B LIMITS

LT1790A LIMITS

2.498

2.499 2.500

2.501

OUTPUT VOLTAGE (V)

2.502

1790 TA02

1790fc

For more information

www.linear.com/LT1790

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