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一款放大器使用指南

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标签： LM358指南

LM358指南LM358指南LM358指南LM358指南

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LM158 LM258 LM358 Lowpower dual operational amplifiers Datasheet production data Internally frequencycompensated Features Large DC voltage gain 100 dB Wide bandwidth unity gain 11 MHz temperature compensated Very low supply current per operator essentially independent of supply voltage Low input bias current 20 nA temperature compensated Low input offset voltage 2 mV Low input offset current 2 nA Input commonmode voltage range includes negative rails Differential input voltage ran......

LM158, LM258, LM358

Low-power dual operational amplifiers

Datasheet

production data

Features

•

Internally frequency-compensated

•

Large DC voltage gain: 100 dB

DIP8

(Plastic package)

•

Wide bandwidth (unity gain): 1.1 MHz

(temperature compensated)

•

Very low supply current per operator

essentially independent of supply voltage

•

Low input bias current: 20 nA

(temperature compensated)

SO8 and MiniSO8

(Plastic micropackage)

•

Low input offset voltage: 2 mV

•

Low input offset current: 2 nA

•

Input common-mode voltage range includes

negative rails

•

Differential input voltage range equal to the

power supply voltage

•

Large output voltage swing 0 V to (V

CC+

-1.5 V)

DFN8 2 x 2 mm

(Plastic micropackage)

Description

These circuits consist of two independent, high-

gain, internally frequency-compensated op-amps,

specifically designed to operate from a single

power supply over a wide range of voltages. The

low-power supply drain is independent of the

magnitude of the power supply voltage.

Application areas include transducer amplifiers,

DC gain blocks and all the conventional op-amp

circuits, which can now be more easily

implemented in single power supply systems. For

example, these circuits can be directly supplied

with the standard +5 V, which is used in logic

systems and will easily provide the required

interface electronics with no additional power

supply.

In linear mode, the input common-mode voltage

range includes ground and the output voltage can

also swing to ground, even though operated from

only a single power supply voltage.

TSSOP8

(Thin shrink small outline package)

Pin connections

(Top view)

Out1

In1-

In1+

Vcc-

Vcc+

Out2

In2-

In2+

June 2013

This is information on a product in full production.

DocID2163 Rev 11

1/22

www.st.com

Contents

LM158, LM258, LM358

Contents

Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Typical applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.1

6.2

6.3

6.4

6.5

DIP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

MiniSO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

TSSOP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

DFN8 2 x 2 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2/22

DocID2163 Rev 11

LM158, LM258, LM358

Schematic diagram

Figure 1. Schematic diagram (1/2 LM158)

6μA

4μA

100μA

Inverting

input

Q11

Output

Q13

Q10

Q12

Non-inverting

input

50μA

GND

DocID2163 Rev 11

3/22

Absolute maximum ratings

LM158, LM258, LM358

Absolute maximum ratings

Table 1. Absolute maximum ratings

Symbol

Supply voltage

Input voltage

Differential input voltage

Output short-circuit duration

(1)

oper

stg

Input current

(2)

Operating free-air temperature range

Storage temperature range

Maximum junction temperature

Thermal resistance junction to ambient

(3)

SO8

MiniSO8

TSSOP8

DIP8

DFN8 2x2

Thermal resistance junction to case

(3)

SO8

MiniSO8

TSSOP8

DIP8

HBM: human body model

(4)

ESD

MM: machine model

(5)

CDM: charged device model

(6)

Parameter

LM158,A

LM258,A

+/-16 or 32

Infinite

5 mA in DC or 50 mA in AC (duty

cycle = 10%, T=1s)

-55 to +125 -40 to +105

-65 to +150

150

125

190

120

300

200

1.5

0 to +70

°C

LM358,A

Unit

thja

°C/W

thjc

°C/W

1. Short-circuits from the output to V

can cause excessive heating if V

> 15 V. The maximum output

current is approximately 40 mA independent of the magnitude of V

. Destructive dissipation can result

from simultaneous short circuits on all amplifiers.

2. This input current only exists when the voltage at any of the input leads is driven negative. It is due to the

collector-base junction of the input PNP transistor becoming forward-biased and thereby acting as input

diode clamp. In addition to this diode action, there is NPN parasitic action on the IC chip. This transistor

action can cause the output voltages of the Op-amps to go to the V

voltage level (or to ground for a large

overdrive) for the time during which an input is driven negative.

This is not destructive and normal output is restored for input voltages above -0.3 V.

3. Short-circuits can cause excessive heating and destructive dissipation. R

are typical values.

4. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a

1.5 kW resistor between two pins of the device. This is done for all couples of connected pin combinations

while the other pins are floating.

5. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between

two pins of the device with no external series resistor (internal resistor < 5 W). This is done for all couples

of connected pin combinations while the other pins are floating.

6. Charged device model: all pins and the package are charged together to the specified voltage and then

discharged directly to the ground through only one pin. This is done for all pins.

4/22

DocID2163 Rev 11

LM158, LM258, LM358

Operating conditions

Table 2. Operating conditions

Symbol

icm

Supply voltage

Common mode input voltage range

(1)

Operating free air temperature range

LM158

LM258

LM358

Parameter

Value

3 to 30

CC-

-0.3 to V

CC+

-1.5

-55 to +125

-40 to +105

0 to +70

Unit

oper

°C

1. When used in comparator, the functionality is guaranteed as long as at least one input remains within the

operating common mode voltage range.

DocID2163 Rev 11

5/22

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