LM385-1.2
- Operating Current Range
- LM285-1.2: 10 μA to 20 mA
- LM385-1.2: 15 μA to 20 mA
- LM385B-1.2: 15 μA to 20 mA
- 1% and 2% Initial Voltage Tolerance
- Reference Impedance
- LM385-1.2: 1 Ω MAX at 25°C
- All devices: 1.5 Ω MAX over
Full
Temperature Range
- Very Low Power Consumption
- Interchangeable with Industry Standard
LM285-1.2 and LM385-1.2
These micropower, two-terminal, band-gap voltage references operate over a 10-μA to 20-mA current range and feature exceptionally low dynamic impedance and good temperature stability. On-chip trimming provides tight voltage tolerance. The band-gap reference for these devices has low noise and long-term stability.
The design makes these devices exceptionally tolerant of capacitive loading and, thus, easier to use in most reference applications. The wide dynamic operating temperature range accommodates varying current supplies, with excellent regulation.
The extremely low power drain of this series makes them useful for micropower circuitry. These voltage references can be used to make portable meters, regulators, or general-purpose analog circuitry, with battery life approaching shelf life. The wide operating current range allows them to replace older references with tighter-tolerance parts.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LMx85-1.2, LM385B-1.2 Micropower Voltage References datasheet (Rev. J) | PDF | HTML | 2015/1/27 | ||
| 電子書 | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019/6/28 |
設計與開發
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SHUNT_VOLTAGE_REFERENCE_RESISTOR_CALCULATOR — Shunt Voltage Reference External Resistor Quick Start Calculator
此外部電阻快速入門計算機工具可讓您輕鬆計算相對電壓參考、電源供應和負載電流限制的有效外部電阻值。透過這些輸入，您可以立即查看計算結果，並使用顏色編碼指示來了解計算出的輸出是有效或無效值。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TSSOP (PW) | 8 | Ultra Librarian |
| SOIC (D) | 8 | Ultra Librarian |
| TO-92 (LP) | 3 | Ultra Librarian |