LM94021
- LM94021Q is AEC-Q100 Grade 0 Qualified
and is Manufactured on an Automotive Grade Flow - Low 1.5V Operation
- Four Selectable Gains
- Very Accurate Over Wide Temperature Range of
−50°C to +150°C - Low Quiescent Current
- Output is Short-Circuit Protected
- Extremely Small SC70 Package
- Footprint Compatible with the Industry-Standard
LM20 Temperature Sensor - UL Recognized Component
The LM94021 is a precision analog output CMOS integrated-circuit temperature sensor that operates at a supply voltage as low as 1.5V. While operating over the wide temperature range of −50°C to +150°C, the LM94021 delivers an output voltage that is inversely proportional to measured temperature. The LM94021's low supply current makes it ideal for battery-powered systems as well as general temperature sensing applications.
Two logic inputs, Gain Select 1 (GS1) and Gain Select 0 (GS0), select the gain of the temperature-to-voltage output transfer function. Four slopes are selectable: −5.5 mV/°C, −8.2 mV/°C, −10.9 mV/°C, and −13.6 mV/°C. In the lowest gain configuration (GS1 and GS0 both tied low), the LM94021 can operate with a 1.5V supply while measuring temperature over the full −50°C to +150°C operating range. Tying both inputs high causes the transfer function to have the largest gain of −13.6 mV/°C 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.
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技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | LM94021/LM94021Q Multi-Gain Analog Temperature Sensor datasheet (Rev. E) | 2013年 6月 28日 | |
Certificate | UL Certification 20141125-E232195 Vol 1 Sec 7 | 2023年 11月 17日 | ||
Certificate | UL Certificate of Compliance Vol1-Sec7 E232195 | 2018年 8月 6日 | ||
EVM User's guide | LM9402xEVM User's Guide | 2013年 9月 12日 | ||
Design guide | LM94021 LM94022 LM94023 Design Aid (Rev. A) | 2012年 1月 26日 | ||
White paper | Temperature sensor solutions for low-voltage systems | 2005年 5月 11日 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
LM9402XEVM — 適用於多增益類比溫度感測器的評估模組
The Texas Instruments LM9402xEVM evaluation module helps designers evaluate the operation and performance of the LM94021, LM94022, and LM94023 analog temperature sensors.
封裝 | 引腳 | 下載 |
---|---|---|
SOT-SC70 (DCK) | 5 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點