Datasheet LM715CJ, LM715CH Datasheet (NSC)

LM715
High Speed Operational Amplifier

LM715 High Speed Operational Amplifier

October 1989

General Description

The LM715 is a high speed, high gain, monolithic operation­al amplifier intended for use in a wide range of applications
where fast signal acquisition or wide bandwidth is required.
The LM715 features fast settling time, high slew rate, low
offsets, and high output swing for large signal applications.
In addition, the device displays excellent temperature stabil­ity and will operate over a wide range of supply voltages.

Connection Diagrams

10-Lead Metal Package

TL/H/10059– 1

Top View

Lead 5 connected to case.

Ordering Information

Device Package Package

Code Code Description

LM715MH H10C Metal
LM715CH H10C Metal
LM715MJ J14A Ceramic DIP
LM715CJ J14A Ceramic DIP

Features

Y

High slew rateÐ 100 V/ms
(Inverting, A

Y

Fast settling timeÐ 800 ns typically

Y

Wide bandwidthÐ 65 MHz typically

Y

Wide operating supply range

Y

Wide input voltage ranges

e

V

1) typically

Applications

Y

Video amplifiers

Y

Active filters

Y

High speed data conversion

14-Lead DIP

Top View

TL/H/10059– 2

C

1995 National Semiconductor Corporation RRD-B30M115/Printed in U. S. A.

TL/H/10059

Absolute Maximum Ratings

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

Storage Temperature Range

Operating Temperature Range

Extended (LM715M)
Commercial (LM715C) 0

b

65§Ctoa175§C

b

55§Ctoa125§C

Ctoa70§C

§

Lead Temperature

Metal Can and Ceramic DIP
(Soldering, 60 sec.) 300

C

§

LM715M and LM715C
Electrical Characteristics

Symbol Parameter Conditions

V

IO

I

IO

I

IB

Z

I

R

O

I

CC

P

c

V

IR

A

VS

V Settling Time V

TR Transient Rise Time V

SR Slew Rate A

The following specifications apply over the range ofb55§CsT
LM715C

Symbol Parameter Conditions

V

IO

I

IO

I

IB

CMR Common Mode R

PSRR Power Supply R

A

VS

V

OP

Note 1: T

Note 2: Ratings apply to ambient temperature at 25

Note 3: For supply voltages less than

Note 4: T

Input Offset Voltage R

Input Offset Current 70 250 70 250 nA

Input Bias Current 400 750 400 1500 nA

Input Impedance 1.0 1.0 MX

Output Resistance 75 75 X

Supply Current 5.5 7.0 5.5 10 mA

Power Consumption 165 210 165 300 mW

Input Voltage Range

Large Signal Voltage Gain R

Response

Overshoot 25 40 25 50 %

Input Offset Voltage R

Input Offset Current T

Input Bias Current T

Rejection (Note 4) (Note 4)

Rejection Ratio (Note 4) (Note 4)

Large Signal R
Voltage Gain V

Output Voltage Swing R

e

175§C.

J Max

g

e

A

25§C only.

15V, the absolute maximum input voltage is equal to the supply voltage.

e

T

25§C, V

A

s

S

t

L

O

e

I

e

V

e

A

V

e

A

V

e

A

V

CC

10 kX 2.0 5.0 2.0 7.5 mV

2.0 kX,V

g

5.0V, A

400 mV, A

O

V

V

e

100 70 70

10 38 38

1.0 (Non-Inverting) 15 18 10 18

1.0 (Inverting) 100 100

Min Typ Max Min Typ Max

s

10 kX 7.5 10 mV

S

e

T

A

A Max

e

T

T

A

A Min

e

T

A

A Max

e

T

T

A

A Min

s

10 kX

S

s

10 kX

S

t

2.0 kX,

L

e

g

10V

O

e

2.0 kX

L

C. Above this temperature, derate the 10L-Metal Can at 7.1 mW/§C, and the 14L-Ceramic DIP at 9.1 mW/§C.

§

74 92

10 8 V/mV

g

Internal Power Dissipation (Notes 1, 2)

10L-Metal Can 1.07W
14L-Ceramic DIP 1.36W

Supply Voltage

Differential Input Voltage

Input Voltage (Note 3)

e

g

15V, unless otherwise specified

LM715M LM715C

Min Typ Max Min Typ Max

g10g

e

g

10V 15 30 10 30 V/mV

e

1.0 800 800 ns

e

1.0 30 60 30 75 ns

s

a

125§C for the LM715M, and 0§CsT

A

12

g10g

12 V

s

a

70§C for the

A

LM715M LM715C

250 250

800 750

0.75 1.5

4.0 7.5

74 92

45 400

g

13 V

10

45 300

g

13

g

10

g

g

g

Units

V/ms

Units

mV/V

18V

5V

15V

nA

mA

dB

2

Typical Performance Characteristics for LM715M and LM715C

Voltage Gain vs
Temperature (LM715)

Common Mode Rejection Ratio
vs Temperature (LM715)

Slew Rate vs
Temperature (LM715C)

Supply Voltage Rejection Ratio
vs Temperature (LM715)

Voltage Gain vs
Temperature (LM715C)

Common Mode Rejection Ratio
vs Temperature (LM715C)

Slew Rate vs
Temperature (LM715)

Supply Voltage Rejection Ratio
vs Temperature (LM715C)

Frequency Response for Open
Loop Gains (Note 1)

Frequency Response for
Closed Loop Gains

Note 1: See ‘‘Non-Inverting Compensation Components Value Table’’ for Closed Loop Gain values.

Voltage Gain vs Frequency vs Frequency

3

Open Loop Phase

TL/H/10059– 4

Typical Performance Characteristics for LM715M and LM715C (Continued)

Output Swing vs Frequency
for Closed Loop Gains

Unity Gain Large Signal
Pulse Response

Slew Rate vs Closed
Loop Voltage Gain

Supply Voltage Rejection
Ratio vs Frequency

Large Signal Pulse
Response for Gain 10

Slew Rate vs
Supply Voltage

Common Mode Rejection
Ratio vs Frequency

Large Signal Pulse
Response for Gain 100

Voltage Follower
Transient Response

Inverting Unity Gain Large
Signal Pulse Response

Small Signal Pulse Response
Inverting Unity Gain

TL/H/10059– 5

4

Typical Performance Characteristics for LM715M and LM715C (Continued)

Voltage Follower (Note 2)

TL/H/10059– 6

Note 2: Lead numbers apply to metal package.

Equivalent Circuit

Voltage Offset Null Circuit (Note 2)

TL/H/10059– 7

High Slew Rate Circuit (Note 2)

TL/H/10059– 8

TL/H/10059– 3

5

Applications Information

Non-Inverting Compensation

Components Values

Closed Loop

Gain

1000 10 pF

100 50 pF 250 pF

10 (Note) 100 pF 500 pF 1000 pF

1 500 pF 2000 pF 1000 pF

Note: For gain 10, compensation may be simplified by removing C2, C3 and
adding a 200 pF capacitor (C4) between Lead 7 and 10.

Frequency Compensation Circuit

C1 C2 C3

TL/H/10059– 9

RingingÐExcessive ringing (long acquisition time) may oc­cur with large capacitive loads. This may be reduced by
isolating the capacitive load with a resistance of 100X.
Large source resistances may also give rise to the same
problem and this may be decreased by the addition of a
capacitance across the feedback resistance. A value of
around 50 pF for unity gain configuration and around 3.0 pF
for gain 10 should be adequate.

Latch UpÐThis may occur when the amplifier is used as a
voltage follower. The inclusion of a diode between leads 6
and 2 with the cathode toward lead 2 is the recommended
preventive measure.

Typical Applications

Suggested Values of Compensation Capacitors vs

Closed Loop Voltage Gain

TL/H/10059– 10

Layout Instructions

LayoutÐThe layout should be such that stray capacitance

is minimal.

SuppliesÐThe supplies should be adequately bypassed.
Used of 0.1 mF high quality ceramic capacitors is recom­mended.

TL/H/10059– 14

High Speed Integrator

TL/H/10059– 13

Note: All lead numbers on this page apply to metal package.

6

Typical Applications (Continued)

Wide Band Video Amplifier Drive

Capability with 75X Coax Cable

TL/H/10059– 11

Note: All lead numbers shown refer to metal package.

Physical Dimensions inches (millimeters)

TL/H/10059– 12

10-Lead Metal Can Package (H)

Order Number LM715CH or LM715MH

NS Package Number H10C

7

Physical Dimensions inches (millimeters) (Continued)

LM715 High Speed Operational Amplifier

14-Lead Ceramic Dual-In-Line Package (J)

Order Number LM715CJ or LM715MJ

NS Package Number J14A

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DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL
SEMICONDUCTOR CORPORATION. As used herein:

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systems which, (a) are intended for surgical implant support device or system whose failure to perform can
into the body, or (b) support or sustain life, and whose be reasonably expected to cause the failure of the life
failure to perform, when properly used in accordance support device or system, or to affect its safety or
with instructions for use provided in the labeling, can effectiveness.
be reasonably expected to result in a significant injury
to the user.

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Corporation Europe Hong Kong Ltd. Japan Ltd.

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