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參數資料
| 型號： | LM94022QBIMGX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | 1.5V, SC70, Multi-Gain Analog Temperature Sensor with Class-AB Output |
| 中文描述： | ANALOG TEMP SENSOR-VOLTAGE, 0.898-2.298V, 2.70Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | SC-70, 5 PIN |
| 文件頁數： | 1/16頁 |
| 文件大小： | 804K |
| 代理商： | LM94022QBIMGX |
December 6, 2007
LM94022/LM94022Q
1.5V, SC70, Multi-Gain Analog Temperature Sensor with
Class-AB Output
General Description
The LM94022 is a precision analog output CMOS integrated-
circuit temperature sensor that operates at a supply voltage
as low as 1.5 Volts. A class-AB output structure gives the
LM94022 strong output source and sink current capability for
driving heavy loads. For example, it is well suited to source
the input of a sample-and-hold analog-to-digital converter
with its transient load requirements. While operating over the
wide temperature range of 50°C to +150°C, the LM94022
delivers an output voltage that is inversely porportional to
measured temperature. The LM94022'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 LM94022
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 V
or Ground
without any pull-up or pull-down resistors, reducing compo-
nent count and board area. These inputs can also be driven
by logic signals allowing the system to optimize the gain dur-
ing operation or system diagnostics.
Applications
■
Cell phones
■
Wireless Transceivers
■
Battery Management
■
Automotive
■
Disk Drives
■
Games
■
Appliances
Features
■
LM94022Q is AEC-Q100 Grade 0 qualified and is
manufactured on an Automotive Grade Flow.
■
Low 1.5V operation
■
Push-pull output with 50μA source current capability
■
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
Key Specifications
■
Supply Voltage
■
Supply Current
■
Output Drive
■
Temperature
Accuracy
1.5V to 5.5V
5.4 μ
A (typ)
±50 μ
A
±1.5°C
±1.8°C
±2.1°C
±2.7°C
20°C to 40°C
-50°C to 70°C
-50°C to 90°C
-50°C to 150°C
■
Operating
Temperature
50°C to 150°C
Connection Diagram
SC70-5
20143001
Top View
See NS Package Number MAA05A
Typical Transfer Characteristic
Output Voltage vs Temperature
20143024
2007 National Semiconductor Corporation
201430
www.national.com
L
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM94022QBIMGX/NOPB | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| LM94023 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.5V, micro SMD, Dual-Gain Analog Temperature Sensor with Class AB Output |
| LM94023BITME | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.5V, micro SMD, Dual-Gain Analog Temperature Sensor with Class AB Output |
| LM94023BITME/NOPB | 功能描述:板上安裝溫度傳感器 1.5V,micro SMD,Dual- Gain Ana Temp Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| LM94023BITME/NOPB | 制造商:Texas Instruments 功能描述:Temperature Sensor IC |
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