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參數資料
| 型號： | LM9040 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Dual Lambda Sensor Interface Amplifier |
| 中文描述： | 雙氧傳感器接口放大器 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 178K |
| 代理商： | LM9040 |
TL/H/12372
L
August 1995
LM9040
Dual Lambda Sensor Interface Amplifier
General Description
The LM9040 is a dual sensor interface circuit consisting of
two independent sampled input differential amplifiers de-
signed for use with conventional Lambda Oxygen Sensors.
The Lambda Sensor is used for monitoring the oxygen con-
centration in the exhaust of gasoline engines using catalytic
after treatment and will deliver a voltage signal which is de-
pendent on the air-fuel mixture. The gain of the amplifiers
are internally set and can directly convert the Lambda sen-
sor output voltage to a level suitable for A/D conversion in a
system using a 5V reference.
The input common mode voltage range of each amplifier is
g
2V with respect to the IC ground pin. This will allow the IC
to connect to sensors which are remotely grounded at the
engine exhaust manifold or exhaust pipe.
Each amplifier is capable of independent default operation
should either, or both, of the leads to a sensor become
open circuited.
Noise filtering is provided by an internal switched capacitor
low pass filter as part of each amplifier, and by external
components.
The LM9040 is fully specified over the automotive tempera-
ture range of
b
40
§
C to
a
125
§
C and is provided in a 14-pin
Small Outline surface mount package.
Features
Y
Single 5V supply operation
Y
Common mode input voltage range of
g
2V
Y
Differential input voltage range of 50 mV to 950 mV
Y
Sampled differential input
Y
Switched capacitor low pass filter
Y
Internal oscillator and V
BB
generator
Y
Open input default operation
Y
Cold sensor default operation
Y
Low power consumption (42 mW max)
Y
Gain set by design and guaranteed over the operating
temperature range
Applications
Y
Closed loop emissions control
Y
Catalytic converter monitoring
Connection Diagram
TL/H/12372–1
Top View
Ordering Information
LM9040M
See NS Package Number M14B
C
1995 National Semiconductor Corporation
RRD-B30M115/Printed in U. S. A.
相關PDF資料 |
PDF描述 |
|---|---|
| LM9040M | Dual Lambda Sensor Interface Amplifier |
| LM9044 | LM9044 Lambda Sensor Interface Amplifier |
| LM9044V | LM9044 Lambda Sensor Interface Amplifier |
| LM9061 | Power MOSFET Driver with Lossless Protection |
| LM9061N | Power MOSFET Driver with Lossless Protection |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM9040M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual Lambda Sensor Interface Amplifier |
| LM9040M/NOPB | 功能描述:IC SENSOR DUAL INTER AMP 14-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關文件:Automotive Product Guide 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數字 輸出類型:數字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:20-TSSOP 包裝:管件 |
| LM9040MX | 功能描述:IC AMP DUAL SENSR INTERFC 14SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關文件:Automotive Product Guide 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數字 輸出類型:數字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:20-TSSOP 包裝:管件 |
| LM9040MX/NOPB | 制造商:Texas Instruments 功能描述:Lambda Sensor Interface Amplifier 14-Pin SOIC W T/R |
| LM9044 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM9044 Lambda Sensor Interface Amplifier |
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