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LT1790BIS6-2.048-PBF

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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LT1790BIS6-2.048-PBF概述

Micropower SOT-23 Low Dropout Reference Family

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LT1790
Micropower SOT-23
Low Dropout Reference Family
FEATURES
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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.
L,
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.
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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
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Handheld Instruments
Negative Voltage References
Industrial Control Systems
Data Acquisition Systems
Battery-Operated Equipment
TYPICAL APPLICATION
Positive Connection for LT1790-2.5
4
6
1μF
NUMBER OF UNITS
1790 TA01
Typical V
OUT
Distribution for LT1790-2.5
50
167 UNITS
2.6V ≤ V
IN
≤ 18V
0.1μF
LT1790-2.5
1, 2
V
OUT
= 2.5V
45
40
35
30
25
20
15
10
5
0
2.498
2.499 2.500
2.501
OUTPUT VOLTAGE (V)
2.502
1790 TA02
LT1790B LIMITS
LT1790A LIMITS
1790fb
1
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