NSC LM6261N, LM6261M, LM6261MX Datasheet

LM6161/LM6261/LM6361
High Speed Operational Amplifier

General Description

The LM6161 family of high-speed amplifiers exhibits an ex­cellent speed-power product in delivering 300 V/µs and
50 MHz unity gain stability with only 5 mA of supply current.
Further power savings and application convenience are pos­sible by taking advantage of the wide dynamic range in oper­ating supply voltage which extends all the way down to +5V.

These amplifiers are built with National’s VIP

™

(VerticallyIn­tegrated PNP) process which provides fast PNP transistors
that are true complements to the already fast NPN devices.
This advanced junction-isolated process delivers high speed
performance without the need for complex and expensive di­electric isolation.

Features

n High slew rate 300 V/µs

n High unity gain freq 50 MHz
n Low supply current 5 mA
n Fast settling 120 ns to 0.1

%

n Low differential gain

<

0.1

%

n Low differential phase 0.1˚
n Wide supply range 4.75V to 32V
n Stable with unlimited capacitive load
n Well behaved; easy to apply

Applications

n Video amplifier
n High-frequency filter
n Wide-bandwidth signal conditioning
n Radar
n Sonar

Connection Diagrams

Temperature Range Package NSC

Drawing

Military Industrial Commercial

−55˚C ≤ T

A

≤ +125˚C −25˚C ≤ TA≤ +85˚C 0˚C ≤ TA≤ +70˚C

LM6261N LM6361N 8-Pin N08E

Molded DIP
LM6161J/883 LM6361J 8-Pin J08A
5962-8962101PA Ceramic DIP

LM6261M LM6361M 8-Pin Molded M08A

Surface Mt.
LM6161WG/883 10-Lead WG10A
5962-8962101XA Ceramic SOIC
LM6161W/883 10-Pin W10A
5962-8962101HA Ceramic Flatpak

VIP™is a trademark of National Semiconductor Corporation.

10–Lead Flatpak

DS009057-13

See NS Package Number W10A

DS009057-5

See NS Package Number J08A,

N08E or M08A

May 1999

LM6161/LM6261/LM6361 High Speed Operational Amplifier

© 1999 National Semiconductor Corporation DS009057 www.national.com

Absolute Maximum Ratings (Note 12)

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

Supply Voltage (V

+−V−

) 36V

Differential Input Voltage

(Note 8)

±

8V

Common-Mode Voltage Range

(Note 10) (V

+

− 0.7V) to (V−+ 0.7V)

Output Short Circuit to GND

(Note 1) Continuous

Soldering Information

Dual-In-Line Package (N, J)

Soldering (10 sec.) 260˚C

Small Outline Package (M)

Vapor Phase (60 sec.)
Infrared (15 sec.)

215˚C
220˚C

See AN-450 “Surface Mounting Methods and Their Effect
on Product Reliability” for other methods of soldering

surface mount devices.
Storage Temp Range −65˚C to +150˚C
Max Junction Temperature 150˚C
ESD Tolerance (Notes 6, 7)

±

700V

Operating Ratings (Note 12)

Temperature Range (Note 2)

LM6161 −55˚C ≤ T

J

≤ +125˚C

LM6261 −25˚C ≤ T

J

≤ +85˚C

LM6361 0˚C ≤ T

J

≤ +70˚C

Supply Voltage Range 4.75V to 32V

DC Electrical Characteristics

The following specifications apply for Supply Voltage

=

±

15V, V

CM

=

0, R

L

≥ 100 kΩ and R

S

=

50Ω unless otherwise noted.

Boldface limits apply for T

J

=

T

MIN

to T

MAX

; all other limits T

J

=

25˚C.

Symbol Parameter Conditions Typ LM6161 LM6261 LM6361 Units

Limit Limit Limit

(Notes 3, 11) (Note 3) (Note 3)

V

OS

Input Offset Voltage 5 7 7 20 mV

10 9 22 Max

V

OS

Input Offset Voltage 10 µV/˚C
Drift Average Drift
I

b

Input Bias Current 2 3 3 5 µA

656Max

I

OS

Input Offset Current 150 350 350 1500 nA

800 600 1900 Max

I

OS

Input Offset Current 0.4 nA/˚C
Drift Average Drift
R

IN

Input Resistance Differential 325 kΩ
C

IN

Input Capacitance A

V

=

+1

@

10 MHz 1.5 pF

A

VOL

Large Signal V

OUT

=

±

10V, 750 550 550 400 V/V

Voltage Gain R

L

=

2kΩ(Note 9) 300 400 350 Min

R

L

=

10 kΩ (Note 9) 2900 V/V

V

CM

Input Common-Mode Supply

=

±

15V +14.0 +13.9 +13.9 +13.8 Volts

Voltage Range +13.8 +13.8 +13.7 Min

−13.2 −12.9 −12.9 −12.8 Volts

−12.7 −12.7 −12.7 Min
Supply=+5V 4.0 3.9 3.9 3.8 Volts
(Note 4) 3.8 3.8 3.7 Min

1.8 2.0 2.0 2.1 Volts

2.2 2.2 2.2 Max

CMRR Common-Mode −10V ≤ V

CM

≤ +10V 94 80 80 72 dB

Rejection Ratio 74 76 70 Min

PSRR Power Supply

±

10V ≤ V±≤±16V 90 80 80 72 dB

Rejection Ratio 74 76 70 Min

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DC Electrical Characteristics (Continued)

The following specifications apply for Supply Voltage

=

±

15V, V

CM

=

0, R

L

≥ 100 kΩ and R

S

=

50Ω unless otherwise noted.

Boldface limits apply for T

J

=

T

MIN

to T

MAX

; all other limits T

J

=

25˚C.

Symbol Parameter Conditions Typ LM6161 LM6261 LM6361 Units

Limit Limit Limit

(Notes 3, 11) (Note 3) (Note 3)

V

O

Output Voltage Supply

=

±

15V +14.2 +13.5 +13.5 +13.4 Volts

Swing and R

L

=

2kΩ +13.3 +13.3 +13.3 Min

−13.4 −13.0 −13.0 −12.9 Volts

−12.7 −12.8 −12.8 Min
Supply=+5V 4.2 3.5 3.5 3.4 Volts
and R

L

=

2kΩ 3.3 3.3 3.3 Min

(Note 4) 1.3 1.7 1.7 1.8 Volts

2.0 1.9 1.9 Max
Output Short Source 65 30 30 30 mA
Circuit Current 20 25 25 Min

Sink 65 30 30 30 mA

20 25 25 Min

I

S

Supply Current 5.0 6.5 6.5 6.8 mA

6.8 6.7 6.9 Max

AC Electrical Characteristics

The following specifications apply for Supply Voltage

=

±

15V, V

CM

=

0, R

L

≥ 100 kΩ and R

S

=

50Ω unless otherwise noted.

Boldface limits apply for T

J

=

T

MIN

to T

MAX

; all other limits T

J

=

25˚C.

LM6161 LM6261 LM6361

Symbol Parameter Conditions Typ Limit Limit Limit Units

(Notes 3, 11) (Note 3) (Note 3)

GBW Gain-Bandwidth

@

f=20 MHz 50 40 40 35 MHz

Product 30 35 32 Min

Supply

=

±

5V 35 MHz

SR Slew Rate A

V

=

+1 (Note 8) 300 200 200 200 V/µs

180 180 180 Min

Supply

=

±

5V (Note 8) 200 V/µs

PBW Power Bandwidth V

OUT

=

20 V

PP

4.5 MHz

t

S

Settling Time 10V Step to 0.1

%

120 ns

A

V

=

−1, R

L

=

2kΩ
φm Phase Margin 45 Deg
A

D

Differential Gain NTSC, A

V

=

+4

<

0.1

%

φD Differential Phase NTSC, A

V

=

+4 0.1 Deg

e

np-p

Input Noise Voltage f=10 kHz 15

i

np-p

Input Noise Current f=10 kHz 1.5

Note 1: Continuous short-circuit operation at elevated ambient temperature can result in exceeding the maximum allowed junction temperature of 150˚C.
Note 2: The typical junction-to-ambient thermal resistance of the molded plastic DIP (N) is 105˚C/W, the molded plastic SO(M)packageis155˚C/W, and the cerdip

(J) package is 125˚C/W. All numbers apply for packages soldered directly into a printed circuit board.

Note 3: Limits are guaranteed by testing or correlation.
Note 4: For single supply operation, the following conditions apply: V

+

=

5V,V

−

=

0V,V

CM

=

2.5V,V

OUT

=

2.5V.Pin 1 & Pin 8 (Vos Adjust) are each connected to

Pin4(V

−

) to realize maximum output swing. This connection will degrade VOS,VOSDrift, and Input Voltage Noise.

Note 5: C

L

≤ 5pF.

Note 6: In order to achieve optimum AC performance, theinputstagewasdesigned without protective clamps. Exceeding the maximum differential input voltage re­sults in reverse breakdown of the base-emitter junction of one of the input transistors and probable degradation of the input parameters (especially Vos, Ios, and
Noise).

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AC Electrical Characteristics (Continued)

Note 7: The average voltage that the weakest pin combinations (those involving Pin 2 or Pin 3) can withstand and still conform to the datasheet limits. The test circuit

used consists of the human body model of 100 pF in series with 1500Ω.
Note 8: V

IN

=

8V step. For supply

=

±

5V, V

IN

=

5V step.

Note 9: Voltage Gain is the total output swing (20V) divided by the input signal required to produce that swing.
Note 10: The voltage between V

+

and either input pin must not exceed 36V.

Note 11: A military RETS electrical test specification is available on request. At the time of printing, the RETS6161X specs complied with all Boldface limits in this
column.

Note 12: 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 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.

Typical Performance Characteristics (R

L

=10kΩ,TA= 25˚C unless otherwise specified)

Supply Current vs
Supply Voltage

DS009057-15

Common-Mode
Rejection Ratio

DS009057-16

Power Supply
Rejection Ratio

DS009057-17

Gain-Bandwidth
Product

DS009057-18

Propagation Delay
Rise and Fall Times

DS009057-19

Gain-Bandwidth Product
vs Load Capacitance

DS009057-20

Slew Rate vs
Load Capacitance

DS009057-21

Overshoot vs
Capacitive Load

DS009057-22

Slew Rate

DS009057-23

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