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LM146 PDF预览

LM146

更新时间: 2024-11-24 22:51:59
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 运算放大器
页数 文件大小 规格书
9页 145K
描述
PROGRAMMABLE QUAD BIPOLAR OPERATIONAL AMPLIFIERS

LM146 数据手册

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LM146  
LM246 - LM346  
PROGRAMMABLE  
QUAD BIPOLAR OPERATIONAL AMPLIFIERS  
.
PROGRAMMABLE ELECTRICAL CHARAC-  
TERISTICS  
.
.
.
.
.
.
BATTERY POWERED OPERATION  
LOW SUPPLY CURRENT (250µA/amplifier)  
GAIN-BANDWIDTH PRODUCT : 1MHz  
LARGE DC VOLTAGE GAIN : 120dB  
LOW NOISE VOLTAGE : 28nV/VHz  
WIDE POWER SUPPLY RANGE : ±1.5V to  
±22V  
CLASSE AB OUTPUT STAGE. NO CROSS-  
OVER DISTORTION  
OVERLOADPROTECTION FOR INPUTS AND  
OUTPUTS  
N
D
DIP16  
SO16  
.
.
(Plastic Package)  
(Plastic Micropackage)  
ORDER CODES  
Package  
Part  
Number  
Temperature  
Range  
N
D
LM146  
–55oC, +125oC  
–40oC, +105oC  
0oC, +70oC  
LM246  
LM346  
DESCRIPTION  
The LM346consists of fourindependent, high gain,  
internally compensated, low power programmable  
amplifiers. Two external resistors (Rset) allow the  
user to program the gain-bandwith product, slew  
rate, supply current, input bias current, input offset  
current and input noise. For example the user can  
trade-off supply current for bandwidth or optimize  
noise figure for a given source resistance. In a simi-  
lar way other amplifier characteristics can be  
tailored to the application.  
Example : LM246N  
PIN CONNECTIONS (top view)  
Output4  
Output1  
Invertinginput 1  
1
16  
15  
14  
13  
12  
11  
10  
9
Invertinginput 4  
2
3
4
5
6
7
8
Except for the two programming pins at the end of  
the package the LM346 pin out is the same as the  
LM324 and LM348.  
Non-invertinginput4  
Non-invertinginput1  
+
V
V
CC  
CC  
Non-invertinginput3  
Invertinginput 3  
Output 3  
Non-invertinginput 2  
Invertinginput 2  
PROGRAMMING EQUATIONS :  
Total supply current = 1mA (Iset = 10µA)  
Gain-bandwidthproduct = 1MHz (Iset = 10µA)  
Slew rate = 0.5V/µs (Iset = 10µA)  
Output2  
Set  
Set  
Input bias current 30 nA (Iset = 10µA)  
I
set = current into pin 8 and pin 9  
(see schematic diagram)  
VCC + VCC 0.6V  
Iset  
=
Rset  
1/9  
November 1997  

LM146 替代型号

型号 品牌 替代类型 描述 数据表
LM346N STMICROELECTRONICS

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