LM94023

アクティブ

複数のゲインと Class-AB アナログ出力、WCSP 封止、±1.5℃、温度センサ

製品詳細

Local sensor accuracy (max) 1.5 Operating temperature range (°C) -50 to 150 Supply voltage (min) (V) 1.5 Supply voltage (max) (V) 5.5 Supply current (max) (µA) 8.1 Interface type Analog output Sensor gain (mV/°C) -8.2, -5.5 Rating Catalog Features Selectable gain setting
Local sensor accuracy (max) 1.5 Operating temperature range (°C) -50 to 150 Supply voltage (min) (V) 1.5 Supply voltage (max) (V) 5.5 Supply current (max) (µA) 8.1 Interface type Analog output Sensor gain (mV/°C) -8.2, -5.5 Rating Catalog Features Selectable gain setting
DSBGA (YFQ) 4 1 mm² 1 x 1
  • 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
  • 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.

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.

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比較対象デバイスと同等の機能で、ピン配置が異なる製品
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LM94022 アクティブ 複数のゲインと Class-AB アナログ出力、±1.5℃、温度センサ Selectable gain with more options (-13.6, -10.9, -8.2, and -5.5 mV/°C) in a SC70 package.

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種類 タイトル 最新の英語版をダウンロード 日付
* データシート 1.5V, micro SMD, Dual-Gain Analog Temperature Sensor with Class AB Output データシート (Rev. B) 2013年 6月 28日
EVM ユーザー ガイド (英語) LM9402xEVM User's Guide 2013年 9月 12日
設計ガイド LM94021 LM94022 LM94023 Design Aid (Rev. A) 2012年 1月 26日

設計と開発

その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。

評価ボード

LM9402XEVM — マルチゲイン・アナログ温度センサ用評価モジュール

The Texas Instruments LM9402xEVM evaluation module helps designers evaluate the operation and performance of the LM94021, LM94022, and LM94023 analog temperature sensors.

ユーザー ガイド: PDF
計算ツール

LM9403X-DESIGNAID-CALC — LM94021 LM94022 LM94023 デザイン・エイド

Design Aid
パッケージ ピン数 ダウンロード
DSBGA (YFQ) 4 オプションの表示

購入と品質

記載されている情報:
  • RoHS
  • REACH
  • デバイスのマーキング
  • リード端子の仕上げ / ボールの原材料
  • MSL 定格 / ピーク リフロー
  • MTBF/FIT 推定値
  • 材質成分
  • 認定試験結果
  • 継続的な信頼性モニタ試験結果
記載されている情報:
  • ファブの拠点
  • 組み立てを実施した拠点

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