NSC LM7372MWC, LM7372MR, LM7372IMA, LM7372ILDX, LM7372ILD Datasheet

LM7372
High Speed, High Output Current, Dual Operational
Amplifier

General Description

The LM7372 is a high speed dual voltage feedback amplifier
that has the slewing characteristic of current feedback am­plifiers; yet it can be used in all traditional voltage feedback
amplifier configurations.

The LM7372 is stable for gains as low as +2 or −1. It
provides a very high slew rate at 3000V/µs and a wide gain
bandwidth product of 120MHz, while consuming only

6.5mA/per amplifier ofsupplycurrent. It is ideal for video and
high speed signal processing applications such as xDSL and
pulse amplifiers. With 150mA output current, the LM7372
can be used for video distribution, as a transformer driver or
as a laser diode driver.

Operation on

±

15V power supplies allows for large signal
swings and provides greater dynamic range and
signal-to-noise ratio. The LM7372 offers high SFDR and low
THD, ideal for ADC/DAC systems. In addition, the LM7372 is
specified for

±

5V operation for portable applications.

The LM7372 is built on National’s Advance VIP

™

III (Verti-

cally integrated PNP) complementary bipolar process.

Features

n −80dBc highest harmonic distortion@1MHz, 2V

PP

n Very high slew rate: 3000V/µs
n Wide gain bandwidth product: 120MHz
n −3dB frequency

@

AV= +2: 200MHz

n Low supply current: 13mA (both amplifiers)
n High open loop gain: 85dB
n High output current: 150mA
n Differential gain and phase: 0.01%, 0.02˚

Applications

n HDSL and ADSL Drivers
n Multimedia broadcast systems
n Professional video cameras
n CATV/Fiber optics signal processing
n Pulse amplifiers and peak detectors
n HDTV amplifiers

Typical Application

20004903

FIGURE 1. Single Supply Application (SOIC-16)

February 2002

LM7372 High Speed, High Output Current, Dual Operational Amplifier

© 2002 National Semiconductor Corporation DS200049 www.national.com

Connection Diagrams

16-Pin SOIC 8-Contact LLP

20004902

Top View

*

Heatsink Pins. See note 4

20004901

Top View

8-Pin PSOP

20004929

Top View

For PSOP SOIC-8 the exposed pad should be tied either to V−or left
electrically floating. (die attach material is conductive and is internally
tied to V

−

)

Ordering Information

Symbol Temperature Range Package Markiing Transport Media NSC

Drawing

−40˚C to +85˚C

16-Pin SOIC

LM7372IMA LM7372IMA Rails

M16A

LM7372IMAX LM7372IMA 2.5k Units Tape and Reel

8-Pin LLP

LM7372ILD L7372 1k Units Tape and Reel

LDC08A

LM7372ILDX L7372 4.5k Units Tape and Reel

8-Pin PSOP

LM7372MR LM7372MR Rails

MRA08A

LM7372MRX LM7372MR 2.5k Units Tape and Reel

LM7372

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Absolute Maximum Ratings (Notes 1,

3)

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.

ESD Tolerance

Human Body Model 1.5kV (Note 2)
Machine Model 200V (Note 2)

Suppy Voltage (V

+−V−

) 36V

Differential Input Voltage (V

S

=±15V)

±

10V

Output Short Circuit to Ground
(Note 3) Continuous

Storage Temp. Range −65˚C to 150˚C
Soldering Information

Infrared or Convection Reflow (20

sec.) 235˚C

Wave Soldering Lead Temperature

(10 sec.) 260˚C

Input Voltage V

−

to V

+

Maximum Junction Temperature
(Note 4) 150˚C

Operating Ratings (Note 1)

Supply Voltage 9V ≤ V

S

≤ 36V

Junction Temperature Range(T

J

)

LM7372 −40˚C ≤ T

J

≤ 85˚C

Thermal Resistance(θ

JA

)

16-Pin SOIC See (Note 4) 106˚C/W

70˚C/W

LLP-8 Package

(See Application Section) 40˚C/W

8-Pin PSOP

(See Application Section) 59˚C/W

±

15V DC Electrical Characteristics

Unless otherwise specified, all limits guaranteed for TJ= 25˚C, VCM= 0V and RL=1kΩ.Boldface apply at the temperature
extremes.

Symbol Parameter Conditions Min

(Note 6)

Typ

(Note 5)

Max

(Note 6)

Units

V

OS

Input Offset Voltage 2.0 8.0

10.0

mV

TC V

OS

Input Offset Voltage Average Drift 12 µV/˚C

I

B

Input Bias Current 2.7 10

12

µA

I

OS

Input Offset Current 0.1 4.0

6.0

µA

R

IN

Input Resistance Common Mode 40 MΩ

Differential Mode 3.3 MΩ

R

O

Open Loop Output Resistance 15 Ω

CMRR Common Mode Rejection Ratio V

CM

=±10V 75

70

93 dB

PSRR Power Supply Rejection Ratio V

S

=±15V to±5V 75

70

90 dB

V

CM

Input Common-Mode Voltage Range CMRR>60dB

±

13 V

A

V

Large Signal Voltage Gain (Note 7) RL=1kΩ 75

70

85 dB

R

L

= 100Ω 70

66

81 dB

V

O

Output Swing RL=1kΩ 13

12.7

13.4 V

−13

−12.7

−13.3 V

I

OUT

= − 150mA 11.8

11.4

12.4 V

I

OUT

= 150mA −11.2

−10.8

−11.9 V

I

SC

Output Short Circuit Current Sourcing 260 mA

Sinking 250 mA

LM7372

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±

15V DC Electrical Characteristics (Continued)

Unless otherwise specified, all limits guaranteed for TJ= 25˚C, VCM= 0V and RL=1kΩ.Boldface apply at the temperature
extremes.

Symbol Parameter Conditions Min

(Note 6)

Typ

(Note 5)

Max

(Note 6)

Units

I

S

Supply Current (both Amps) 13 17

19

mA

±

15V AC Electrical Characteristics

Unless otherwise specified, all limits guaranteed for TJ= 25˚C, VCM= 0V and RL=1kΩ.Boldface apply at the temperature
extremes.

Symbol Parameter Conditions Min

(Note 6)

Typ

(Note 5)

Max

(Note 6)

Units

SR Slew Rate (Note 8) A

V

= +2, VIN13V

P-P

3000 V/µs

A

V

= +2, VIN10V

P-P

2000

Unity Bandwidth Product 120 MHz

−3dB Frequency A

V

= +2 220 MHz

φ

m

Phase Margin A

VOL

= 6dB 70 deg

t

S

Settling Time (0.1%) AV= −1, AO=±5V,

R

L

= 500Ω

50 ns

t

P

Propagation Delay AV= −2, VIN=±5V,

R

L

= 500Ω

6.0 ns

A

D

Differential Gain (Note 9) 0.01 %

φ

D

Differential Phase (Note 9) 0.02 deg

hd2 Second Harmonic Distortion

F

IN

= 1MHz, AV=+2

V

OUT

=2V

P-P,RL

= 100Ω −80 dBc

V

OUT

= 16.8V

P-P,RL

= 100Ω −73 dBc

hd3 Third Harmonic Distortion

F

IN

= 1MHz, AV=+2

V

OUT

=2V

P-P,RL

= 100Ω −91 dBc

V

OUT

= 16.8V

P-P,RL

= 100Ω −67 dBc

IMD Intermodulation Distortion Fin 1 = 75kHz,

Fin 2 = 85kHz
V

OUT

= 16.8V

P-P,RL

= 100Ω

−87 dBc

e

n

Input-Referred Voltage Noise f = 10kHz 14 nV/

i

n

Input-Referred Current Noise f = 10kHz 1.5 pA/

±

5V DC Electrical Characteristics

Unless otherwise specified, all limits guaranteed for TJ= 25˚C, VCM= 0V and RL=1kΩ.Boldface apply at the temperature
extremes.

Symbol Parameter Conditions Min

(Note 6)

Typ

(Note 5)

Max

(Note 6)

Units

V

OS

Input Offset Voltage 2.2 8.0

10.0

mV

TC V

OS

Input Offset Voltage Average Drift 12 µV/˚C

I

B

Input Bias Current 3.3 10

12

µA

I

OS

Input Offset Current 0.1 4

6

µA

R

IN

Input Resistance Common Mode 40 MΩ

Differential Mode 3.3 MΩ

R

O

Open Loop Output Resistance 15 Ω

CMRR Common Mode Rejection Ratio V

CM

=±2.5V 70

65

90 dB

LM7372

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±

5V DC Electrical Characteristics (Continued)

Unless otherwise specified, all limits guaranteed for TJ= 25˚C, VCM= 0V and RL=1kΩ.Boldface apply at the temperature
extremes.

Symbol Parameter Conditions Min

(Note 6)

Typ

(Note 5)

Max

(Note 6)

Units

PSRR Power Supply Rejection Ratio V

S

=±15V to±5V 75

70

90 dB

V

CM

Input Common-Mode Voltage Range CMRR>60dB

±

3V

A

V

Large Signal Voltage Gain (Note 7) RL=1kΩ 70

65

78 dB

R

L

= 100Ω 64

60

72 dB

V

O

Output Swing RL=1kΩ 3.2

3.0

3.4 V

−3.2

−3.0

−3.4 V

I

OUT

= − 80mA 2.5

2.2

2.8 V

I

OUT

= 80mA −2.5

−2.2

−2.7 V

I

SC

Output Short Circuit Current Sourcing 150 mA

Sinking 150 mA

I

S

Supply Current (both Amps) 12.4 16

18

mA

±

5V AC Electrical Characteristics

Unless otherwise specified, all limits guaranteed for TJ= 25˚C, VCM= 0V and RL=1kΩ.Boldface apply at the temperature
extremes.

Symbol Parameter Conditions Min

(Note 6)

Typ

(Note 5)

Max

(Note 6)

Units

SR Slew Rate (Note 8) A

V

= +2, VIN3V

P-P

700 V/µs

Unity Bandwidth Product 100 MHz

−3dB Frequency A

V

= +2 125 MHz

φ

m

Phase Margin 70 deg

t

S

Settling Time (0.1%) AV= −1, VO=±1V, RL=

500Ω

70 ns

t

P

Propagation Delay AV= +2, VIN=±1V, RL=

500Ω

7ns

A

D

Differential Gain (Note 9) 0.02 %

φ

D

Differential Phase (Note 9) 0.03 deg

hd2 Second Harmonic Distortion

F

IN

= 1MHz, AV=+2

V

OUT

=2V

P-P,RL

= 100Ω −84 dBc

hd3 Third Harmonic Distortion

F

IN

= 1MHz, AV=+2

V

OUT

=2V

P-P,RL

= 100Ω −94 dBc

e

n

Input-Referred Voltage Noise f = 10kHz 14 nV/

i

n

Input-Referred Current Noise f = 10kHz 1.8 pA/

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.

Note 2: For testing purposes, ESD was applied using human body model, 1.5kΩ in series with 100pF. Machine model, 0Ω in series with 200pF.
Note 3: Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature can result in exceeding the

maximum allowed junction temperature of 150˚C.

LM7372

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