The LT1009 reference circuit is a precision-trimmed 2.5-V shunt regulator featuring low dynamic impedance and a wide operating current range. The reference tolerance is achieved by on-chip trimming, which minimizes the initial voltage tolerance and the temperature coefficient, 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 LT1009 is characterized for operation from –55°C to 125°C
| LT1009M | |
| VO (V) | 2.5 |
| Initial Accuracy @ 25/deg C (%) | 0.2 |
| Temp Coeff (Max) (ppm/ degree C) | 35 |
| Temp Coeff (Typ) (ppm/ degree C) | 20 |
| Min Iz for Regulation (uA) | 400 |
| Iout/Iz (Max) (mA) | 10 |
| Operating Temperature Range (C) | -55 to 125 |
| Rating | Military |
| 器件 | 状态 | 温度 | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| LT1009MKGD1 | ACTIVE | -55 to 125 | 4.72 | 1ku | XCEPT (KGD) | 0 | 100 |
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| LT1009MKGD1 | TBD | Call TI | N/A for Pkg Type | LT1009MKGD1 | LT1009MKGD1 |
| 培训内容 | 型号 | 软件/工具类型 |
| 最常用开关模式电源的功率级设计器 | POWERSTAGE-DESIGNER | 分析软件 |
