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| 型号： | LM385MX-2.5 |
| 厂商： | National Semiconductor |
| 文件页数： | 1/22页 |
| 文件大小： | 0K |
| 描述： | IC VREF SHUNT 2.5V 8-SOIC |
| 标准包装： | 1 |
| 基准类型： | 分流器 |
| 输出电压： | 2.5V |
| 容差： | ±3% |
| 温度系数： | 150ppm/°C |
| 通道数： | 1 |
| 电流 - 阴极： | 20µA |
| 电流 - 输出： | 20mA |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 剪切带 (CT) |
| 其它名称： | *LM385MX-2.5 LM385MX-2.5CT |
LM185-2.5-N, LM285-2.5-N, LM385-2.5-N
SNVS743D – DECEMBER 1999 – REVISED MARCH 2013
LM185-2.5-N/LM285-2.5-N/LM385-2.5-N Micropower Voltage Reference Diode
Check for Samples: LM185-2.5-N , LM285-2.5-N , LM385-2.5-N
1
FEATURES
Careful design of the LM185-2.5-N has made the
2
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±20 mV (±0.8%) max. Initial Tolerance (A
Grade)
device exceptionally tolerant of capacitive loading,
making it easy to use in almost any reference
application. The wide dynamic operating range allows
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Operating Current of 20 μ A to 20 mA
0.6 Ω Dynamic Impedance (A Grade)
Low Temperature Coefficient
Low Voltage Reference—2.5V
1.2V Device and Adjustable Device Also
Available—LM185-1.2 Series and LM185
Series, respectively
its use with widely varying supplies with excellent
regulation.
The extremely low power drain of the LM185-2.5-N
makes it useful for micropower circuitry. This voltage
reference can be used to make portable meters,
regulators or general purpose analog circuitry with
battery life approaching shelf life. Further, the wide
operating current allows it to replace older references
with a tighter tolerance part. For applications requiring
DESCRIPTION
The LM185-2.5-N/LM285-2.5-N/LM385-2.5-N are
micropower 2-terminal band-gap voltage regulator
diodes. Operating over a 20 μ A to 20 mA current
range, they feature exceptionally low dynamic
impedance and good temperature stability. On-chip
trimming is used to provide tight voltage tolerance.
Since the LM-185-2.5-N band-gap reference uses
only transistors and resistors, low noise and good
long term stability result.
Connection Diagram
Figure 1. TO-92 Package
(Bottom View)
1.2V see LM185-1.2.
The LM185-2.5-N is rated for operation over a ? 55°C
to 125°C temperature range while the LM285-2.5-N is
rated ? 40°C to 85°C and the LM385-2.5-N 0°C to
70°C. The LM185-2.5-N/LM285-2.5-N are available in
a hermetic TO package and the LM285-2.5-N/LM385-
2.5-N are also available in a low-cost TO-92 molded
package, as well as SOIC and SOT-23. The LM185-
2.5-N is also available in a hermetic leadless chip
carrier package.
Figure 2. SOIC Package
See Package Number D0008A
See Package Number LP0003A
* Pin 3 is attached to the Die Attach Pad (DAP) and should be connected to Pin 2 or left floating.
Figure 3. SOT-23
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.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright ? 1999–2013, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
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| LM385PS-1-2 | 制造商:Texas Instruments 功能描述: |
| LM385PSR-1-2 | 功能描述:基准电压& 基准电流 Micropower Voltage 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 |
| LM385PSRE4-1-2 | 功能描述:基准电压& 基准电流 Micropower Voltage 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 |
| LM385PSRG4-1-2 | 功能描述:基准电压& 基准电流 MicroPwr Vltg Ref 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 |
| LM385PW-1-2 | 功能描述:基准电压& 基准电流 Micropower Voltage 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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