LT1790_15,LT1790_15 pdf中文资料,LT1790_15引脚图,LT1790

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LT1790_15: 产品描述Micropower SOT-23 Low Dropout Reference Family; 文件大小313KB，共26页; 制造商Linear ( ADI ); 官网地址http://www.analog.com/cn/index.html

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LT1790_15概述

Micropower SOT-23 Low Dropout Reference Family

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LT1790

Micropower SOT-23

Low Dropout Reference Family

FEATURES

DESCRIPTION

The LT

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 sys-

tems because of their small size, low supply current and

reduced dropout voltage. These references provide sup-

ply 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

1μF

NUMBER OF UNITS

1790 TA01

Typical V

OUT

Distribution for LT1790-2.5

167 UNITS

2.6V ≤ V

≤ 18V

0.1μF

LT1790-2.5

1, 2

OUT

= 2.5V

2.498

2.499 2.500

2.501

OUTPUT VOLTAGE (V)

2.502

1790 TA02

LT1790B LIMITS

LT1790A LIMITS

1790fb

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