LM246

更新时间： 2024-11-07 22:51:55

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

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中文翻译

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数据手册

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LM246 数据手册

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

DIP16

SO16

(Plastic Package)

(Plastic Micropackage)

ORDER CODES

Package

Part

Number

Temperature

Range

LM146

–55^oC, +125^oC

–40^oC, +105^oC

0^oC, +70^oC

•

LM246

LM346

•

DESCRIPTION

The LM346consists of fourindependent, high gain,

internally compensated, low power programmable

amplifiers. Two external resistors (R_set) 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

Invertinginput 4

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

Non-invertinginput3

Invertinginput 3

Output 3

Non-invertinginput 2

Invertinginput 2

PROGRAMMING EQUATIONS :

Total supply current = 1mA (I_set= 10µA)

Gain-bandwidthproduct = 1MHz (I_set= 10µA)

Slew rate = 0.5V/µs (I_set= 10µA)

Output2

Set

Input bias current ≈30 nA (I_set= 10µA)

_set= current into pin 8 and pin 9

(see schematic diagram)

V_CC⁺− V_CC⁻− 0.6V

I_set

R_set

1/9

November 1997

12 3 4 5 6 7...9

中文翻译

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