- 您现在的位置：买卖IC网 > PDF目录79679 > LM385M3-1.2X (NATIONAL SEMICONDUCTOR CORP) 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, PDSO3 PDF资料下载
参数资料
| 型号： | LM385M3-1.2X |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, PDSO3 |
| 封装： | SOT-23, 3 PIN |
| 文件页数： | 1/8页 |
| 文件大小： | 294K |
| 代理商： | LM385M3-1.2X |
January 30, 2008
LM185-1.2/LM285-1.2/LM385-1.2
Micropower Voltage Reference Diode
General Description
The LM185-1.2/LM285-1.2/LM385-1.2 are micropower 2-ter-
minal band-gap voltage regulator diodes. Operating over a
10
μA to 20mA current range, they feature exceptionally low
dynamic impedance and good temperature stability. On-chip
trimming is used to provide tight voltage tolerance. Since the
LM185-1.2 band-gap reference uses only transistors and re-
sistors, low noise and good long term stability result.
Careful design of the LM185-1.2 has made the device excep-
tionally tolerant of capacitive loading, making it easy to use in
almost any reference application. The wide dynamic operat-
ing range allows its use with widely varying supplies with
excellent regulation.
The extremely low power drain of the LM185-1.2 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.
The LM185-1.2 is rated for operation over a 55°C to 125°C
temperature range while the LM285-1.2 is rated 40°C to 85°
C and the LM385-1.2 0°C to 70°C. The LM185-1.2/LM285-1.2
are available in a hermetic TO-46 package and the
LM285-1.2/LM385-1.2 are also available in a low-cost TO-92
molded package, as well as SO and SOT-23. The LM185-1.2
is also available in a hermetic leadless chip carrier package.
Features
■ ±1% and 2% initial tolerance
■ Operating current of 10μA to 20mA
■ 1Ω dynamic impedance
■ Low temperature coefficient
■ Low voltage reference—1.235V
■ 2.5V device and adjustable device also available
■ LM185-2.5 series and LM185 series, respectively
Connection Diagrams
T0-92
Plastic Package (Z)
551810
Bottom View
Order Number LM285Z-1.2,
LM285BXZ-1.2, LM285BYZ-1.2
LM385Z-1.2, LM385BZ-1.2
LM385BXZ-1.2 or LM385BYZ-1.2
See NS Package Number Z03A
SOT23
551833
* Pin 3 is attached to the Die Attach Pad (DAP) and should be connected to
Pin 2 or left floating.
Order Number LM385M3-1.2
See NS Package Number MF03A
SO Package
551809
Order Number LM285M-1.2,
LM285BXM-1.2, LM285BYM-1.2
LM385M-1.2, LM385BM-1.2
LM385BXM-1.2 or LM385BYM-1.2
See NS Package Number M08A
TO-46
Metal Can Package (H)
551806
Bottom View
Order Number LM185H-1.2, LM185H-1.2/883,
LM185BXH-1.2, LM185BYH-1.2
LM285H-1.2 or LM285BXH-1.2
See NS Package Number H02A
2008 National Semiconductor Corporation
5518
www.national.com
LM185-1.2/LM285-1.2/LM385-1.2
Micropower
Voltage
Reference
Diode
相关PDF资料 |
PDF描述 |
|---|---|
| LT1680SW | SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO16 |
| LES008ZD18N | 1-OUTPUT 15 W DC-DC REG PWR SUPPLY MODULE |
| LES008ZD19N | 1-OUTPUT 15 W DC-DC REG PWR SUPPLY MODULE |
| LM4050BIX3-3.0+T | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 3 V, PDSO3 |
| LTC3765HMSE#TRPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM385M3-2.5 | 功能描述:基准电压& 基准电流 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 |
| LM385M3-2.5 | 制造商:Texas Instruments 功能描述:IC SM MICROPOWER REFERENCE 2.5V |
| LM385M3-2.5/NOPB | 功能描述:基准电压& 基准电流 MICROPWR VLTG REF DIODE 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 |
| LM385M3-2.5/NOPB | 制造商:Texas Instruments 功能描述:Voltage Reference |
| LM385M3-2.5-NOPB | 制造商:TI 制造商全称:Texas Instruments 功能描述:LM185-2.5-N/LM285-2.5-N/LM385-2.5-N Micropower Voltage Reference Diode |
发布紧急采购，3分钟左右您将得到回复。