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| 型号： | LM4040C20QDBZR |
| 厂商： | Texas Instruments |
| 文件页数： | 1/58页 |
| 文件大小： | 0K |
| 描述： | IC VREF SHUNT PREC 2.048V SOT23 |
| 标准包装： | 1 |
| 基准类型： | 旁路，精度 |
| 输出电压： | 2.048V |
| 容差： | ±0.5% |
| 温度系数： | 100ppm/°C |
| 通道数： | 1 |
| 电流 - 阴极： | 80µA |
| 电流 - 输出： | 15mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-236-3，SC-59，SOT-23-3 |
| 供应商设备封装： | SOT-23-3 |
| 包装： | 标准包装 |
| 其它名称： | 296-20886-6 |
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LM4040
www.ti.com .................................................................................................................................................. SLOS456K – JANUARY 2005 – REVISED MARCH 2008
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
FEATURES
1
? Fixed Output Voltages of 2.048 V, 2.5 V, 3 V,
4.096 V, 5 V, 8.192 V, and 10 V
DBZ (SOT-23) PACKAGE
(TOP VIEW)
?
Tight Output Tolerances and Low Temperature
Coefficient
– Max 0.1%, 100 ppm/°C – A Grade
CATHODE
ANODE
1
2
3*
– Max 0.2%, 100 ppm/°C – B Grade
– Max 0.5%, 100 ppm/°C – C Grade
– Max 1.0%, 150 ppm/°C – D Grade
* Pin 3 is attached to substrate and must be
connected to ANODE or left open.
?
?
Low Output Noise…35 μ V RMS Typ
Wide Operating Current Range…45 μ A Typ to
DCK (SC-70) PACKAGE
(TOP VIEW)
?
?
15 mA
Stable With All Capacitive Loads; No Output
Capacitor Required
Available in Extended Temperature
ANODE
NC
CATHODE
1
2
3
5
4
NC
NC
Range…–40°C to 125°C
APPLICATIONS
? Data-Acquisition Systems
? Power Supplies and Power-Supply Monitors
NC – No internal connection
LP (TO-92/TO-226) PACKAGE
(TOP VIEW)
?
?
?
?
?
?
Instrumentation and Test Equipment
Process Controls
Precision Audio
Automotive Electronics
Energy Management
Battery-Powered Equipment
ANODE
CATHODE
NC
NC – No internal connection
DESCRIPTION/ORDERING INFORMATION
The LM4040 series of shunt voltage references are versatile, easy-to-use references that cater to a vast array of
applications. The 2-pin fixed-output device requires no external capacitors for operation and is stable with all
capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and low temperature
coefficient to ensure a stable output voltage over a wide range of operating currents and temperatures. The
LM4040 uses fuse and Zener-zap reverse breakdown voltage trim during wafer sort to offer four output voltage
tolerances, ranging from 0.1% (max) for the A grade to 1% (max) for the D grade. Thus, a great deal of flexibility
is offered to designers in choosing the best cost-to-performance ratio for their applications.
Packaged in space-saving SC-70 and SOT-23-3 packages and requiring a minimum current of 45 μ A (typ), the
LM4040 also is ideal for portable applications. The LM4040xI is characterized for operation over an ambient
temperature range of –40°C to 85°C. The LM4040xQ is characterized for operation over an ambient temperature
range of –40°C to 125°C.
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.
UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright ? 2005–2008, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4040C20QDBZRG4 | 功能描述:基准电压& 基准电流 2.048-V Precision Mcrpwr Shunt .5% acc RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| LM4040C20QDBZT | 功能描述:基准电压& 基准电流 2.048-V Precision Mcrpwr Shunt .5% acc RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| LM4040C20QDBZTG4 | 功能描述:基准电压& 基准电流 2.048-V Precision Mcrpwr Shunt .5% acc RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| LM4040C25-EP | 制造商:TI 制造商全称:Texas Instruments 功能描述:PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE |
| LM4040C25FTA | 功能描述:基准电压& 基准电流 0.5% 2.5V Reference RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
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