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LT1009CLPR 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
电压基准芯片
封装:
TO-92-3
描述:
分流电压参考，固定，2.4V 至 2.5V### 电压参考，Texas Instruments精密固定和可调电压参考 IC 利用串联、并联或串联/并联拓扑，并提供通孔和表面安装封装。 电压参考的初始准确度为 ±0.02 至 ±2%。
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LT1009CLPR数据手册
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1
FEATURES
1
2
3
4
8
7
6
5
NC
NC
NC
ANODE
CATHODE
NC
CATHODE
ADJ
D OR PW PACKAGE
(TOP VIEW)
NC − No internal connection
ANODE
CATHODE
ADJ
LP PACKAGE
(TOP VIEW)
1
2
3
4
8
7
6
5
NC
NC
NC
ANODE
CATHODE
NC
CATHODE
ADJ
D OR PW PACKAGE
(TOP VIEW)
DESCRIPTION/ORDERING INFORMATION
ANODE CATHODE
ADJ
LT1009
www.ti.com
................................................................................................................................................................. SLVS013N – MAY 1987 – REVISED MAY 2009
2.5-V INTEGRATED REFERENCE CIRCUIT
• Excellent Temperature Stability • Wide Operating Current Range
• Initial Tolerance: 0.2% Max • Directly Interchangeable With LM136
• Dynamic Impedance: 0.6 Ω Max • Needs No Adjustment for Minimum
Temperature Coefficient
The LT1009 reference circuit is a precision-trimmed 2.5-V shunt regulator featuring low dynamic impedance and
a wide operating current range. The maximum initial tolerance is ± 5 mV in the LP package and ± 10 mV in the D
and PW packages. The reference tolerance is achieved by on-chip trimming, which minimizes the initial voltage
tolerance and the temperature coefficient, α
VZ
.
Although the LT1009 needs no adjustments, a third terminal (ADJ) allows the reference voltage to be adjusted
± 5% to eliminate system errors. In many applications, the LT1009 can be used as a terminal-for-terminal
replacement for the LM136-2.5, which eliminates the external trim network.
The LT1009 uses include 5-V system references, 8-bit analog-to-digital converter (ADC) and digital-to-analog
converter (DAC) references, and power-supply monitors. The device also can be used in applications such as
digital voltmeters and current-loop measurement and control systems.
The LT1009C is characterized for operation from 0 ° C to 70 ° C. The LT1009I is characterized for operation from
– 40 ° C to 85 ° C.
SYMBOL
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 1987 – 2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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