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參數資料
| 型號： | LM4140ACM-2.5 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | High Precision Low Noise Low Dropout Voltage |
| 中文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.5 V, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數： | 1/15頁 |
| 文件大?。?/td> | 439K |
| 代理商： | LM4140ACM-2.5 |
LM4140
High Precision Low Noise Low Dropout Voltage
Reference
General Description
The LM4140 series of precision references are designed to
combine high accuracy, low drift and noise with low power
dissipation in a small package.
The LM4140 is the industry’s first reference with output volt-
age options lower than the bandgap voltage.
The key to the advance performance of the LM4140 is the
use of EEPROM registers and CMOS DACs for temperature
coefficient curvature correction and trimming of the output
voltage accuracy of the device during the final production
testing.
The major advantage of this method is the much higher reso-
lution available with DACs than is available economically
with most methods utilized by other bandgap references.
The low input and dropout voltage, low supply current and
output drive capability of the LM4140 makes this product an
ideal choice for battery powered and portable applications.
The LM4140 is available in three grades (A, B, C) with 0.1%
initial accuracy and 3, 6 and 10 ppm/C temperature coeffi-
cients. For even lower Tempco, contact National Semicon-
ductor.
The device performance is specified over the temperature
range (0C to +70C) and is available in compact 8-pin SO
package.
For other output voltage options from 0.5V to 4.5V, con-
tact National Semiconductor.
Features
n
High initial accuracy: 0.1%
n
Ultra low noise
n
Low Temperature Coefficient: 3 ppm/C (A grade)
n
Low voltage operation: 1.8V
n
SO-8 package
n
Low dropout voltage: 20 mV (typ)
@
1mA
n
Supply Current: 230 μA (typ),
≤
1 μA disable mode
n
Enable pin
n
Output voltage options: 1.024V, 1.250V, 2.048V, 2.500V,
and 4.096V
n
Custom voltages from 0.5V to 4.5V
n
Temperature range (0C to 70C)
Applications Summary
n
Portable, battery powered equipment
n
Instrumentation and test equipment
n
Automotive
n
Industrial process control
n
Data acquisition systems
n
Medical equipment
n
Precision scales
n
Servo systems
n
Battery charging
Typical Application
DS101079-1
C
OUT
, Output bypass capacitor. See text for selection detail.
Typical Temperature Coefficient
(Sample of 5 Parts)
DS101079-23
Refer to the Ordering Information Table in this Data Sheet for Specific Part
Number
July 2000
L
2000 National Semiconductor Corporation
DS101079
www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| LM4140ACM-4.1 | High Precision Low Noise Low Dropout Voltage |
| LM4140ACMX-1.0 | High Precision Low Noise Low Dropout Voltage |
| LM4140ACMX-1.2 | High Precision Low Noise Low Dropout Voltage |
| LM4140ACMX-2.0 | High Precision Low Noise Low Dropout Voltage |
| LM4140ACMX-2.5 | High Precision Low Noise Low Dropout Voltage |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM4140ACM-4.1 | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM4140ACM-4.1/NOPB | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM4140ACMX-1.0 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High Precision Low Noise Low Dropout Voltage |
| LM4140ACMX-1.0/NOPB | 功能描述:IC VREF SERIES PREC 1.024V 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電壓基準 系列:PowerWise® 標準包裝:1 系列:- 基準類型:串聯(lián)，精度 輸出電壓:4.5V 容差:±800µV 溫度系數:1ppm/°C 輸入電壓:13.5 V ~ 22 V 通道數:1 電流 - 陰極:- 電流 - 靜態(tài):7mA 電流 - 輸出:10mA 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:20-LCC 供應商設備封裝:20-CLCC 包裝:管件 |
| LM4140ACMX-1.2 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High Precision Low Noise Low Dropout Voltage |
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