LM346 STMicroelectronics, LM346 Datasheet

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LM346

Manufacturer Part Number
LM346
Description
Programmable quad bipolar op-amp
Manufacturer
STMicroelectronics
Datasheet

Specifications of LM346

Gain-bandwith Product
1MHz
Large Dc Voltage Gain
120dB
Low Noise Voltage
28nV/ΣHz

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DESCRIPTION
The LM346 consists of four independent, high
gain, internally compensated, low power program-
mable amplifiers. Two external resistors (R
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 programming pins 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
Gain bandwith product = 1MHz (I
Slew rate = 0.5V/ s (I
Input bias current 30nA (I
diagram)
ORDER CODE
N = Dual in Line Package (DIP))
I
I se t
set
LM146
LM246
LM346
Example : LM246N
April 2003
Number
PROGRAMMABLE ELECTRICAL CHARAC-
TERISTICS
LOW SUPPLY CURRENT (250 A/amplifier)
GAIN-BANDWITH PRODUCT : 1MHz
LARGE DC VOLTAGE GAIN : 120dB
LOW NOISE VOLTAGE : 28nV/ Hz
WIDE POWER SUPPLY RANGE / ±1.5V to
±22V
CLASSE AB OUTPUT STAGE. NO
CROSS-OVER DISTORTION
OVERLOAD PROTECTION FOR INPUTS
AND OUTPUTS
= current into pin 8 and pin 9 (see schematic
Part
=
Vcc+ Vcc
---------------------------------------------------- -
R
-55°C, +125°C
-40°C, +105°C
Temperature
set
0°C, +70°C
-
Range
0.6 V
set
= 10
set
set
= 10
QUAD BIPOLAR OPERATIONAL AMPLIFIER
= 10 A)
set
Package
= 10 A)
N
set
) al-
PIN CONNECTIONS (top view)
(Plastic Package)
PROGRAMMABLE
DIP16
N
LM146
LM246
LM346
1/4

Related parts for LM346

LM346 Summary of contents

Page 1

... In a similar way other amplifier characteris- tics can be tailored to the application. Except for the two programming pins 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 Gain bandwith product = 1MHz (I Slew rate = 0 ...

Page 2

... For supply voltage less than ±15V, the absolute maximum input voltage is equal to the supply voltage. 2. Any of the amplifier outputs can be shorted to ground indefinitly; however more than one should not be simultaneously shorted as the maximum junction will be exceeded. 2/4 Parameter 2) LM146 LM246 LM346 Value Unit ±22 V ±15 V ±30 V ...

Page 3

... max = 10k , C = 100pF 0.3 = 10k , Vo = 12V ) 100pF L 0.8 = 10k L LM146-LM246-LM346 LM146 LM246 - LM346 Typ. Max. Min. Typ. 0 100 30 100 1000 50 1000 25 110 80 110 ±13.5 ±13.5 110 ...

Page 4

... LM146-LM246-LM346 PACKAGE MECHANICAL DATA 16 PINS - PLASTIC PACKAGE Dim. Min. a1 0. Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use ...

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