LM94023
- Low 1.5V Operation
- Push-pull Output with 50µA Source Current Capability
- Two Selectable Gains
- Very Accurate Over Wide Temperature Range of −50°C to +150°C
- Low Quiescent Current
- Output is Short-circuit Protected
- Extremely Small DSBGA Package
- Footprint Compatible with the Industry-standard LM20 Temperature Sensor
Key Specifications
- Supply Voltage 1.5V to 5.5V
- Supply Current 5.4 µA (typ)
- Output Drive ±50 µA
- Temperature Accuracy
- 20°C to 40°C ±1.5°C
- –50°C to 70°C ±1.8°C
- –50°C to 90°C ±2.1°C
- –50°C to 150°C ±2.7°C
- Operating Temperature −50°C to 150°C
The LM94023 is a precision analog output CMOS integrated-circuit temperature sensor that operates at a supply voltage as low as 1.5 Volts. Available in the very small four-bump DSBGA 0.8mm x 0.8mm) the LM94023 occupies very little board area. A class-AB output structure gives the LM94023 strong output source and sink current capability for driving heavy loads, making it well suited to source the input of a sample-and-hold analog-to-digital converter with its transient load requirements, This generally means the LM94023 can be used without external components, like resistors and buffers, on the output. While operating over the wide temperature range of −50°C to +150°C, the LM94023 delivers an output voltage that is inversely porportional to measured temperature. The LM94023's low supply current makes it ideal for battery-powered systems as well as general temperature sensing applications.
A Gain Select (GS) pin sets the gain of the temperature-to-voltage output transfer function. Either of two slopes are selectable: −5.5 mV/°C (GS=0) or −8.2 mV/°C (GS=1). In the lowest gain configuration, the LM94023 can operate with a 1.5V supply while measuring temperature over the full −50°C to +150°C operating range. Tying GS high causes the transfer function to have the largest gain for maximum temperature sensitivity. The gain-select inputs can be tied directly to VDD or Ground without any pull-up or pull-down resistors, reducing component count and board area. These inputs can also be driven by logic signals allowing the system to optimize the gain during operation or system diagnostics.
您可能感兴趣的相似米6体育平台手机版_好二三四
功能与比较器件相同,且具有相同引脚
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | 1.5V, micro SMD, Dual-Gain Analog Temperature Sensor with Class AB Output 数据表 (Rev. B) | 2013年 6月 28日 | |||
EVM 用户指南 | LM9402xEVM User's Guide | 2013年 9月 12日 | ||||
设计指南 | LM94021 LM94022 LM94023 Design Aid (Rev. A) | 2012年 1月 26日 |
设计和开发
如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。
LM9402XEVM — 用于多增益模拟温度传感器的评估模块
The Texas Instruments LM9402xEVM evaluation module helps designers evaluate the operation and performance of the LM94021, LM94022, and LM94023 analog temperature sensors.
封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
DSBGA (YFQ) | 4 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点