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參數(shù)資料
| 型號： | LM346N |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 運(yùn)動控制電子 |
| 英文描述： | PROGRAMMABLE QUAD BIPOLAR OPERATIONAL AMPLIFIERS |
| 中文描述： | 可編程四雙極運(yùn)算放大器 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大小： | 51K |
| 代理商： | LM346N |
1/5
I
PROGRAMMABLE ELECTRICAL CHARAC-
TERISTICS
I
LOW SUPPLY CURRENT (250
μ
A/amplifier)
I
GAIN-BANDWITH PRODUCT : 1MHz
I
LARGE DC VOLTAGE GAIN : 120dB
I
LOW NOISE VOLTAGE : 28nV/
√
Hz
I
WIDE POWER SUPPLY RANGE /
±
1.5V to
±
22V
I
CLASSE AB OUTPUT STAGE. NO
CROSS-OVER DISTORTION
I
OVERLOAD PROTECTION FOR INPUTS
AND OUTPUTS
DESCRIPTION
The LM346 consists of four independent, high
gain, internally compensated, low power program-
mable amplifiers. Two external resistors (R
set
) al-
low the user to program the gain-bandwith prod-
uct, slew rate, supply current, input bias current,
input offset current and input noise. For example
the user can trade-off supply current for bandwith
or optimize noise figure for a given source resis-
tance. In a similar way other amplifier characteris-
tics can be tailored to the application.
Except for the two programmingpins at the end of
the package the LM346 pin out is the same as the
LM324 and LM348.
PROGRAMMING EQUATIONS :
Total supply current = 1mA (I
set
= 10
μ
A)
Gain bandwith product = 1MHz (I
set
= 10
μ
A)
Slew rate = 0.5V/
μ
s (I
set
= 10
μΑ)
Input bias current
≈
30nA (I
set
= 10
μΑ)
I
set
= current into pin 8 and pin 9 (see schematic
diagram)
ORDER CODE
N =
Dual in Line Package (DIP)
D =
Small Outline Package (SO) - also available in Tape & Reel (DT)
April 2002
PIN CONNECTIONS
(top view)
Part
Number
Temperature
Range
Package
N
D
LM146
LM246
LM346
Example :
LM246N
-55
°
C, +125
°
C
-40
°
C, +105
°
C
0
°
C, +70
°
C
Iset
Vcc
--------------------Rset
Vcc
0.6V
–
=
N
DIP16
(Plastic Package)
D
SO16
(Plastic Micropackage)
CC
V
+
1
2
3
4
5
6
7
9
10
11
12
13
14
Non-inverting Input 2
-
+
-
+
O utput 1
Non-inverting input 1
Inverting Input 1
-
CC
V
Inverting Input 2
Output 2
8
15
16
Output 4
Inverting Input 4
Non-inverting input 4
Non-inverting input 3
Inverting input 3
Output 3
Set
Set
LM146
LM246
LM346
PROGRAMMABLE
QUAD BIPOLAR OPERATIONAL AMPLIFIER
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM346N | 制造商:Texas Instruments 功能描述:OP AMP QUAD PROGRAMMABLE DIP 346 |
| LM346N/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| LM346N/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| LM346N/NOPB | 制造商:Texas Instruments 功能描述:OP Amp Quad GP |
| LM3475 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Hysteretic PFET Buck Controller |
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