LM124JAN - National Semiconductor

LM124A/LM124JAN

Low Power Quad Operational Amplifiers

General Description

The LM124/124A consists of four independent, high gain,

internally frequency compensated operational amplifiers

which were designed specifically to operate from a single

power supply over a wide range of voltages. Operation from

split power supplies is also possible and the low power

supply current 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 now

can be more easily implemented in single power supply

systems. For example, the LM124/124A can be directly op-

erated off of the standard +5Vdc power supply voltage which

is used in digital systems and will easily provide the required

interface electronics without requiring the additional +15Vdc

power supplies.

Unique Characteristics

nIn the 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

nThe unity gain cross frequency is temperature

compensated

nThe input bias current is also temperature compensated

Advantages

nEliminates need for dual supplies

nFour internally compensated op amps in a single

package

nAllows directly sensing near GND and V

OUT

also goes

to GND

nCompatible with all forms of logic

nPower drain suitable for battery operation

Features

nInternally frequency compensated for unity gain

nLarge DC voltage gain 100 dB

nWide bandwidth (unity gain) 1 MHz

(temperature compensated)

nWide power supply range:

Single supply 3V to 32V

or dual supplies ±1.5V to ±16V

nVery low supply current drain (700 µA) — essentially

independent of supply voltage

nLow input biasing current 45 nA

(temperature compensated)

nLow input offset voltage 2 mV

and offset current: 5 nA

nInput common-mode voltage range includes ground

nDifferential input voltage range equal to the power

supply voltage

nLarge output voltage swing 0V to V

− 1.5V

Ordering Information

NSC Part Number JAN Part Number NSC Package Number Package Description

JL124BCA JM38510/11005BCA J14A 14LD CERDIP

JL124BDA JM38510/11005BDA W14B 14LD CERPACK

JL124BZA JM38510/11005BZA WG14A 14LD Ceramic SOIC

JL124SCA JM38510/11005SCA J14A 14LD CERDIP

JL124SDA JM38510/11005SDA W14B 14LD CERPACK

JL124ABCA JM38510/11006BCA J14A 14LD CERDIP

JL124ABDA JM38510/11006BDA W14B 14LD CERPACK

JL124ABZA JM38510/11006BZA WG14A 14LD Ceramic SOIC

JL124ASCA JM38510/11006SCA J14A 14LD CERDIP

JL124ASDA JM38510/11006SDA W14B 14LD CERPACK

JL124ASZA JM38510/11006SZA WG14A 14LD Ceramic SOIC

April 2005

LM124A/LM124JAN Low Power Quad Operational Amplifiers

Connection Diagrams

Dual-In-Line Package

20100701

Top View

See NS Package Number J14A

20100733

See NS Package Number W14B or WG14A

Schematic Diagram (Each Amplifier)

20100702

LM124A/LM124JAN

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Absolute Maximum Ratings (Note 1)

Power Dissipation (Note 2)

CERDIP 400mW

CERPACK 350mW

Ceramic SOIC 350mW

Supply Voltage, V

36V

or ±18V

Input Voltage Differential 30V

Input Voltage −0.3V

to +32V

Input Current (V

<−0.3V

) (Note 3) 10 to 0.1mA

Output Short-Circuit to GND (Note 4)

≤15V

and T

= 25˚C (One Amplifier) Continuous

Operating Temperature Range −55˚C ≤T

≤+125˚C

Maximum Junction Temperature (Note 2) 175˚C

Storage Temperature Range −65˚C ≤T

≤+150˚C

Lead Temperature (Soldering, 10 seconds) 260˚C

Thermal Resistance

CERDIP

(Still Air) 120˚C/W

(500LF/Min Air flow) 51˚C/W

CERPACK

(Still Air) 140˚C/W

(500LF/Min Air flow) 116˚C/W

Ceramic SOIC

(Still Air) 140˚C/W

(500LF/Min Air flow) 116˚C/W

CERDIP 35˚C/W

CERPACK 60˚C/W

Ceramic SOIC 60˚C/W

Package Weight (Typical)

CERDIP 2200mg

CERPACK 460mg

Ceramic SOIC 410mg

ESD Tolerance (Note 5) 250V

LM124A/LM124JAN

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Quality Conformance Inspection

MIL-STD-883, Method 5005 — Group A

Subgroup Description Temp (˚C)

1 Static tests at 25

2 Static tests at 125

3 Static tests at -55

4 Dynamic tests at 25

5 Dynamic tests at 125

6 Dynamic tests at -55

7 Functional tests at 25

8A Functional tests at 125

8B Functional tests at -55

9 Switching tests at 25

10 Switching tests at 125

11 Switching tests at -55

LM124A/LM124JAN

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LM124 JAN DC Electrical Characteristics

SYMBOL PARAMETER CONDITIONS NOTES MIN MAX UNIT SUB

GROUPS

Input Offset Voltage V

CC+

= 30V, V

CC-

= Gnd,

= -15V

-5.0 5.0 mV 1

-7.0 7.0 mV 2, 3

CC+

= 2V, V

CC-

= -28V,

= 13V

-5.0 5.0 mV 1

-7.0 7.0 mV 2, 3

CC+

= 5V, V

CC-

= Gnd,

= -1.4V

-5.0 5.0 mV 1

-7.0 7.0 mV 2, 3

CC+

= 2.5V, V

CC-

= -2.5V, V

= 1.1V

-5.0 5.0 mV 1

-7.0 7.0 mV 2, 3

Input Offset Current V

CC+

= 30V, V

CC-

= Gnd,

= -15V

-30 30 nA 1, 2

-75 75 nA 3

CC+

= 2V, V

CC-

= -28V,

= 13V

-30 30 nA 1, 2

-75 75 nA 3

CC+

= 5V, V

CC-

= Gnd,

= -1.4V

-30 30 nA 1, 2

-75 75 nA 3

CC+

= 2.5V, V

CC-

= -2.5V, V

= 1.1V

-30 30 nA 1, 2

-75 75 nA 3

±I

Input Bias Current V

CC+

= 30V, V

CC-

= Gnd,

= -15V

-150 +0.1 nA 1, 2

-300 +0.1 nA 3

CC+

= 2V, V

CC-

= -28V,

= 13V

-150 +0.1 nA 1, 2

-300 +0.1 nA 3

CC+

= 5V, V

CC-

= Gnd,

= -1.4V

-150 +0.1 nA 1, 2

-300 +0.1 nA 3

CC+

= 2.5V, V

CC-

= -2.5V, V

= 1.1V

-150 +0.1 nA 1, 2

-300 +0.1 nA 3

+PSRR Power Supply Rejection Ratio V

CC-

= Gnd, V

= -1.4V,

5V ≤V

≤30V

-100 100 µV/V 1, 2, 3

CMRR Common Mode Rejection Ratio (Note 6) 76 dB 1, 2, 3

OS+

Output Short Circuit Current V

CC+

= 30V, V

CC -

= Gnd,

Vo = +25V

-70 mA 1, 2, 3

Power Supply Current V

CC+

= 30V, V

CC -

= Gnd 3 mA 1, 2

4mA 3

Delta V

Delta T

Input Offset Voltage

Temperature Sensitivity

+25˚C ≤T

≤+125˚C,

CC+

= 5V, V

CC -

= 0V,

= -1.4V

-30 30 µV/˚C 2

-55˚C ≤T

≤+25˚C,

CC+

= 5V, V

CC-

= 0V,

= -1.4V

-30 30 µV/˚C 3

Delta I

Delta T

Input Offset Current

Temperature Sensitivity

+25˚C ≤T

≤+125˚C,

CC+

= 5V, V

CC-

= 0V,

= -1.4V

-400 400 pA/˚C 2

-55˚C ≤T

≤+25˚C,

CC+

= 5V, V

CC-

= 0V,

= -1.4V

-700 700 pA/˚C 3

LM124A/LM124JAN

www.national.com5

LM124 JAN DC Electrical Characteristics

SYMBOL PARAMETER CONDITIONS NOTES MIN MAX UNIT SUB

GROUPS

Logical "0" Output Voltage V

CC+

= 30V, V

CC-

= Gnd,

= 10KΩ

35 mV 4, 5, 6

CC+

= 30V, V

CC-

= Gnd,

= 5mA

1.5 V 4, 5 ,6

CC+

= 4.5V, V

CC-

= Gnd,

= 2µA

0.4 V 4,5,6

Logical "1" Output Voltage V

CC+

= 30V, V

CC-

= Gnd,

= -10mA

27 V 4,5,6

CC+

= 4.5V, V

CC-

= Gnd,

= -10mA

2.4 V 4, 5

2.3 V 6

VS+

Voltage Gain V

CC+

= 30V, V

CC-

= Gnd,

1V ≤V

≤26V,

= 10KΩ

50 V/mV 4

25 V/mV 5, 6

CC+

= 30V, V

CC-

= Gnd,

5V ≤V

≤20V,

=2KΩ

50 V/mV 4

25 V/mV 5, 6

Gain Voltage V

CC+

= 5V, V

CC-

= Gnd,

1V ≤V

≤2.5V,

= 10KΩ

10 V/mV 4, 5, 6

CC+

= 5V, V

CC-

= Gnd,

1V ≤V

≤2.5V,

=2KΩ

10 V/mV 4, 5, 6

Maximum Output Voltage

Swing

CC+

= 30V, V

CC-

= Gnd,

= +30V, R

= 10KΩ

27 V 4,5,6

CC+

= 30V, V

CC-

= Gnd,

Vo = +30V, R

=2KΩ

26 V 4,5,6

LM124A/LM124JAN

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LM124 JAN AC Electrical Characteristics

The following conditions apply to all the following parameters, unless otherwise specified. AC: +V

= 30V, −V

= 0V.

SYMBOL PARAMETER CONDITIONS NOTES MIN MAX UNIT SUB

GROUPS

Transient Response: Rise Time V

CC+

= 30V, V

CC-

= Gnd 1.0 µS 7, 8A, 8B

Transient Response: Overshoot V

CC+

= 30V, V

CC-

= Gnd 50 % 7, 8A, 8B

±S

Slew Rate: Rise/Fall V

CC+

= 30V, V

CC-

= Gnd 0.1 V/µS 7, 8A, 8B

Noise Broadband V

CC+

= 15V, V

CC-

= -15V,

BW = 10Hz to 5KHz

15 µV/rms 7

Noise Popcorn V

CC+

= 15V, V

CC-

= -15V,

Rs = 20KΩ

50 µV/pK 7

Channel Separation V

CC+

= 30V, V

CC-

= Gnd,

= 1V and 16V,

=2KΩ

80 dB 7

LM124 JAN DC — Drift Values “Delta calculations performed on JAN S and QMLV devices at group B,

subgroup 5 only”

SYMBOL PARAMETER CONDITIONS NOTES MIN MAX UNIT SUB

GROUPS

Input Offset Voltage V

CC+

= 30V, V

CC-

= Gnd,

= -15V

-1.0 1.0 mV 1

±I

Input Bias Current V

CC+

= 30V, V

CC-

= Gnd,

= -15V

-15 15 nA 1

LM124A/LM124JAN

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LM124A JAN DC Electrical Characteristics

SYMBOL PARAMETER CONDITIONS NOTES MIN MAX UNIT SUB

GROUPS

Input Offset Voltage V

CC+

= 30V, V

CC-

= Gnd,

= -15V

-2.0 2.0 mV 1

-4.0 4.0 mV 2, 3

CC+

= 2V, V

CC-

= -28V,

= 13V

-2.0 2.0 mV 1

-4.0 4.0 mV 2, 3

CC+

= 5V, V

CC-

= Gnd,

= -1.4V

-2.0 2.0 mV 1

-4.0 4.0 mV 2, 3

CC+

= 2.5V, V

CC-

= -2.5V, V

= 1.1V

-2.0 2.0 mV 1

-4.0 4.0 mV 2, 3

Input Offset Current V

CC+

= 30V, V

CC-

= Gnd,

= -15V

-10 10 nA 1, 2

-30 30 nA 3

CC+

= 2V, V

CC-

= -28V,

= 13V

-10 10 nA 1, 2

-30 30 nA 3

CC+

= 5V, V

CC-

= Gnd,

= -1.4V

-10 10 nA 1, 2

-30 30 nA 3

CC+

= 2.5V, V

CC-

= -2.5V, V

= 1.1V

-10 10 nA 1, 2

-30 30 nA 3

±I

Input Bias Current V

CC+

= 30V, V

CC-

= Gnd,

= -15V

-50 +0.1 nA 1, 2

-100 +0.1 nA 3

CC+

= 2V, V

CC-

= -28V,

= 13V

-50 +0.1 nA 1, 2

-100 +0.1 nA 3

CC+

= 5V, V

CC-

= Gnd,

= -1.4V

-50 +0.1 nA 1, 2

-100 +0.1 nA 3

CC+

= 2.5V, V

CC-

= -2.5V, V

= 1.1V

-50 +0.1 nA 1, 2

-100 +0.1 nA 3

+PSRR Power Supply Rejection Ratio V

CC-

= Gnd, V

= -1.4V,

5V ≤V

≤30V

-100 100 µV/V 1, 2, 3

CMRR Common Mode Rejection Ratio (Note 6) 76 dB 1, 2, 3

+ Output Short Circuit Current V

CC+

= 30V, V

- = Gnd,

= +25V

-70 mA 1, 2, 3

Power Supply Current V

CC+

= 30V, V

- = Gnd 3.0 mA 1, 2

4.0 mA 3

Delta V

Delta T

Input Offset Voltage

Temperature Sensitivity

+25˚C ≤T

≤+125˚C,

CC+

= 5V, V

CC-

= 0V,

= -1.4V

-30 30 µV/˚C 2

-55˚C ≤T

≤+25˚C,

CC+

= 5V, V

CC-

= 0V,

= -1.4V

-30 30 µV/˚C 3

Delta I

Delta T

Input Offset Current

Temperature Sensitivity

+25˚C ≤T

≤+125˚C,

CC+

= 5V, V

CC-

= 0V,

= -1.4V

-400 400 pA/˚C 2

-55˚C ≤T

≤+25˚C,

CC+

= 5V, V

CC-

= 0V,

= -1.4V

-700 700 pA/˚C 3

LM124A/LM124JAN

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LM124A JAN DC Electrical Characteristics

SYMBOL PARAMETER CONDITIONS NOTES MIN MAX UNIT SUB

GROUPS

Logical "0" Output Voltage V

CC+

= 30V, V

CC-

= Gnd,

= 10KΩ

35 mV 4, 5, 6

CC+

= 30V, V

CC-

= Gnd,

= 5mA

1.5 V 4,5,6

CC+

= 4.5V, V

CC-

= Gnd,

= 2µA

0.4 V 4,5,6

Logical "1" Output Voltage V

CC+

= 30V, V

CC-

= Gnd,

= -10mA

27 V 4,5,6

+ = 4.5V, V

- = Gnd,

= -10mA

2.4 V 4, 5

2.3 V 6

VS+

Voltage Gain V

CC+

= 30V, V

CC-

= Gnd,

1V ≤V

≤26V,

= 10KΩ

50 V/mV 4

25 V/mV 5, 6

CC+

= 30V, V

CC-

= Gnd,

5V ≤V

≤20V,

=2KΩ

50 V/mV 4

25 V/mV 5, 6

Gain Voltage V

CC+

= 5V, V

CC-

= Gnd,

1V ≤V

≤2.5V,

= 10KΩ

10 V/mV 4, 5, 6

CC+

= 5V, V

CC-

= Gnd,

1V ≤V

≤2.5V,

=2KΩ

10 V/mV 4, 5, 6

Maximum Output Voltage

Swing

CC+

= 30V, V

CC-

= Gnd,

= +30V, R

= 10KΩ

27 V 4,5,6

CC+

= 30V, V

CC-

= Gnd,

= +30V, R

=2KΩ

26 V 4,5,6

LM124A/LM124JAN

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LM124A JAN AC Electrical Characteristics

The following conditions apply to all the following parameters, unless otherwise specified. AC: +V

= 30V, −V

=0V

SYMBOL PARAMETER CONDITIONS NOTES MIN MAX UNIT SUB

GROUPS

Transient Response: Rise Time V

CC+

= 30V, V

CC-

= Gnd 1.0 µS 7, 8A, 8B

Transient Response: Overshoot V

CC+

= 30V, V

CC-

= Gnd 50 % 7, 8A, 8B

±S

Slew Rate: Rise/Fall V

CC+

= 30V, V

CC-

= Gnd 0.1 V/µS 7, 8A, 8B

Noise Broadband V

CC+

= 15V, V

CC-

= -15V,

BW = 10Hz to 5KHz

15 µV/rms 7

Noise Popcorn V

CC+

= 15V, V

CC-

= -15V,

Rs = 20KΩ

BW = 10Hz to 5KHz

50 µV/pK 7

Channel Separation V

CC+

= 30V, V

CC-

= Gnd

=2KΩ

80 dB 7

CC+

= 30V, V

CC-

= Gnd,

= 1V and 16V,

=2KΩ

80 dB 7

LM124A/LM124JAN

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LM124A JAN DC — Drift Values “Delta calculations performed on JAN S and QMLV devices at group

B, subgroup 5 only”

Symbol PARAMETER CONDITIONS NOTES MIN MAX UNIT SUB

GROUPS

Input Offset Voltage V

cc+

= 30V, V

cc-

= Gnd,

= -15V

-0.5 0.5 mV 1

±i

Input Bias Current V

cc+

= 30V, V

cc-

= Gnd,

= -15V

-10 10 nA 1

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed

specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test

conditions.

Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature), θJA (package junction

to ambient thermal resistance), and TA(ambient temperature). The maximum allowable power dissipation at any temperature is PDmax =(T

Jmax -T

A)/θJA or the

number given in the Absolute Maximum Ratings, whichever is lower.

Note 3: This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP

transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor 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

duration that an input is driven negative. This is not destructive and normal output states will re-establish when the input voltage, which was negative, again returns

to a value greater than -0.3VDC (at 25˚C).

Note 4: Short circuits from the output to V+can cause excessive heating and eventual destruction. When considering short circuits to ground, the maximum output

current is approximately 40mA independent of the magnitude of V+. At values of supply voltage in excess of +15VDC, continuous short-circuits can exceed the power

dissipation ratings and cause eventual destruction. Destructive dissipation can result from simultaneous shorts on all amplifiers.

Note 5: Human body model, 1.5 kΩin series with 100 pF.

Note 6: The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V (at 25˚C). The upper end of the

common-mode voltage range is V+− 1.5V (at 25˚C), but either or both inputs can go to +32V without damage independent of the magnitude of V+.

LM124A/LM124JAN

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Typical Performance Characteristics

Input Voltage Range Input Current

20100734 20100735

Supply Current Voltage Gain

20100736 20100737

Open Loop Frequency

Response

Common Mode Rejection

Ratio

20100738

20100739

LM124A/LM124JAN

www.national.com 12

Typical Performance Characteristics (Continued)

Voltage Follower Pulse

Response

Voltage Follower Pulse

Response (Small Signal)

20100740 20100741

Large Signal Frequency

Response

Output Characteristics

Current Sourcing

20100742 20100743

Output Characteristics

Current Sinking Current Limiting

20100744 20100745

LM124A/LM124JAN

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Typical Performance Characteristics (Continued)

Input Current (LM2902 only) Voltage Gain (LM2902 only)

20100746 20100747

Application Hints

The LM124MIL series are op amps which operate with only

a single power supply voltage, have true-differential inputs,

and remain in the linear mode with an input common-mode

voltage of 0 V

. These amplifiers operate over a wide range

of power supply voltage with little change in performance

characteristics. At 25˚C amplifier operation is possible down

to a minimum supply voltage of 2.3 V

The pinouts of the package have been designed to simplify

PC board layouts. Inverting inputs are adjacent to outputs for

all of the amplifiers and the outputs have also been placed at

the corners of the package (pins 1, 7, 8, and 14).

Precautions should be taken to insure that the power supply

for the integrated circuit never becomes reversed in polarity

or that the unit is not inadvertently installed backwards in a

test socket as an unlimited current surge through the result-

ing forward diode within the IC could cause fusing of the

internal conductors and result in a destroyed unit.

Large differential input voltages can be easily accommo-

dated and, as input differential voltage protection diodes are

not needed, no large input currents result from large differ-

ential input voltages. The differential input voltage may be

larger than V

without damaging the device. Protection

should be provided to prevent the input voltages from going

negative more than −0.3 V

(at 25˚C). An input clamp diode

with a resistor to the IC input terminal can be used.

To reduce the power supply drain, the amplifiers have a

class A output stage for small signal levels which converts to

class B in a large signal mode. This allows the amplifiers to

both source and sink large output currents. Therefore both

NPN and PNP external current boost transistors can be used

to extend the power capability of the basic amplifiers. The

output voltage needs to raise approximately 1 diode drop

above ground to bias the on-chip vertical PNP transistor for

output current sinking applications.

For ac applications, where the load is capacitively coupled to

the output of the amplifier, a resistor should be used, from

the output of the amplifier to ground to increase the class A

bias current and prevent crossover distortion.

Where the load is directly coupled, as in dc applications,

there is no crossover distortion.

Capacitive loads which are applied directly to the output of

the amplifier reduce the loop stability margin. Values of

50 pF can be accommodated using the worst-case non-

inverting unity gain connection. Large closed loop gains or

resistive isolation should be used if larger load capacitance

must be driven by the amplifier.

The bias network of the LM124MIL establishes a drain cur-

rent which is independent of the magnitude of the power

supply voltage over the range of from 3 V

to 30 V

Output short circuits either to ground or to the positive power

supply should be of short time duration. Units can be de-

stroyed, not as a result of the short circuit current causing

metal fusing, but rather due to the large increase in IC chip

dissipation which will cause eventual failure due to exces-

sive junction temperatures. Putting direct short-circuits on

more than one amplifier at a time will increase the total IC

power dissipation to destructive levels, if not properly pro-

tected with external dissipation limiting resistors in series

with the output leads of the amplifiers. The larger value of

output source current which is available at 25˚C provides a

larger output current capability at elevated temperatures

(see typical performance characteristics) than a standard IC

op amp.

The circuits presented in the section on typical applications

emphasize operation on only a single power supply voltage.

If complementary power supplies are available, all of the

standard op amp circuits can be used. In general, introduc-

ing a pseudo-ground (a bias voltage reference of V

/2) will

allow operation above and below this value in single power

supply systems. Many application circuits are shown which

take advantage of the wide input common-mode voltage

range which includes ground. In most cases, input biasing is

not required and input voltages which range to ground can

easily be accommodated.

LM124A/LM124JAN

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Typical Single-Supply Applications

= 5.0 V

)

Non-Inverting DC Gain (0V Input = 0V Output)

20100705

*R not needed due to temperature independent IIN

DC Summing Amplifier

IN’S

≥0V

and V

≥V

) Power Amplifier

20100706

Where: V0=V

1+V

2−V

3−V

(V1+V

2)≥(V3+V

4) to keep VO>0V

20100707

V0=0V

DC for VIN =0V

AV=10

LM124A/LM124JAN

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Typical Single-Supply Applications (V

= 5.0 V

) (Continued)

LED Driver “BI-QUAD” RC Active Bandpass Filter

20100708

20100709

fo= 1 kHz

Q=50

AV= 100 (40 dB)

Fixed Current Sources Lamp Driver

20100710

20100711

LM124A/LM124JAN

www.national.com 16

Typical Single-Supply Applications

(V+= 5.0 V

) (Continued)

Current Monitor

20100712

*(Increase R1 for ILsmall)

Driving TTL

20100713

Voltage Follower

20100714

Pulse Generator

20100715

Squarewave Oscillator

20100716

Pulse Generator

20100717

LM124A/LM124JAN

www.national.com17

Typical Single-Supply Applications (V

= 5.0 V

) (Continued)

High Compliance Current Sink

20100718

IO= 1 amp/volt VIN

(Increase REfor Iosmall)

Low Drift Peak Detector

20100719

LM124A/LM124JAN

www.national.com 18

Typical Single-Supply Applications (V

= 5.0 V

) (Continued)

Comparator with Hysteresis Ground Referencing a Differential Input Signal

20100720

20100721

VO=V

Voltage Controlled Oscillator Circuit

20100722

*Wide control voltage range: 0 VDC ≤VC≤2(V

+−1.5 VDC)

Photo Voltaic-Cell Amplifier

20100723

LM124A/LM124JAN

www.national.com19

Typical Single-Supply Applications (V

= 5.0 V

) (Continued)

AC Coupled Inverting Amplifier

20100724

AC Coupled Non-Inverting Amplifier

20100725

LM124A/LM124JAN

www.national.com 20

Typical Single-Supply Applications (V

= 5.0 V

) (Continued)

DC Coupled Low-Pass RC Active Filter

20100726

fO= 1 kHz

Q=1

AV=2

High Input Z, DC Differential Amplifier

20100727

LM124A/LM124JAN

www.national.com21

Typical Single-Supply Applications (V

= 5.0 V

) (Continued)

High Input Z Adjustable-Gain

DC Instrumentation Amplifier

20100728

Using Symmetrical Amplifiers to

Reduce Input Current (General Concept)

20100729

Bridge Current Amplifier

20100730

LM124A/LM124JAN

www.national.com 22

Typical Single-Supply Applications (V

= 5.0 V

) (Continued)

Bandpass Active Filter

20100731

fO= 1 kHz

Q=25

LM124A/LM124JAN

www.national.com23

Revision History Section

Date

Released

Revision Section Originator Changes

01/27/05 A New Released, Corporate format R. Malone 2 MDS data sheets converted into one

Corp. data sheet format. MJLM124–X,

Rev. 1B1 and MJLM124A-X, Rev. 2A1.

MDS data sheets will be archived.

04/18/05 B Update Absolute Maximum Ratings

Section

R. Malone Corrected typo for Supply Voltage limit

From: 32Vdc or +18Vdc TO: 32Vdc or

±18Vdc. Added Cerdip package weight.

LM124A/LM124JAN

www.national.com 24

Physical Dimensions inches (millimeters) unless otherwise noted

Ceramic Dual-In-Line Package

NS Package Number J14A

Ceramic Flatpack Package

NS Package Number W14B

LM124A/LM124JAN

www.national.com25

Physical Dimensions inches (millimeters) unless otherwise noted (Continued)

14-Pin Ceramic Package (WG)

NS Package Number WG14A

National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves

the right at any time without notice to change said circuitry and specifications.

For the most current product information visit us at www.national.com.

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which, (a) are intended for surgical implant into the body, or

(b) support or sustain life, and whose failure to perform when

properly used in accordance with instructions for use

provided in the labeling, can be reasonably expected to result

in a significant injury to the user.

2. A critical component is any component of a life support

device or system whose failure to perform can be reasonably

expected to cause the failure of the life support device or

system, or to affect its safety or effectiveness.

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no ‘‘Banned Substances’’ as defined in CSP-9-111S2.

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www.national.com

LM124A/LM124JAN Low Power Quad Operational Amplifiers