NSC LM6218N, LM6218AN, LM6218WMX, LM6218WM Datasheet

LM6118/LM6218
Fast Settling Dual Operational Amplifiers

General Description

The LM6118/LM6218 are monolithic fast-settling
unity-gain-compensated dual operational amplifiers with

±

20
mAoutputdrivecapability. The PNP input stage has a typical
bias current of 200 nA, and the operating supply voltage is

±

5V to±20V.

These dual op amps use slew enhancement with special
mirror circuitry to achieve fast response and high gain with
low total supply current.

The amplifiers are built on a junction-isolated VIP

™

(Verti­cally Integrated PNP) process which produces fast PNP’s
that complement the standard NPN’s.

Features

Typical

j

Low offset voltage: 0.2 mV

j

0.01%settling time: 400 ns

j

Slew rate A

v

=

−1: 140 V/µs

j

Slew rate A

v

=

+1: 75 V/µs

j

Gain bandwidth: 17 MHz

j

Total supply current: 5.5 mA

j

Output drives 50Ω load (±1V)

Applications

n D/A converters
n Fast integrators
n Active filters

Connection Diagrams and Order Information

VIP™is a trademark of NationalSemiconductor Corporation.

Small Outline Package (WM)

DS010254-3

Top View

Order Number LM6218WM

See NS Package Number M14B

Dual-In-Line Package (J or N)

DS010254-4

Top View

Order Number LM6118N,

LM6218AN or LM6218N

See NS Package Number N08E

May 1999

LM6118/LM6218 Fast Settling Dual Operational Amplifiers

© 1999 National Semiconductor Corporation DS010254 www.national.com

Typical Applications

DS010254-1

Single ended input to differential output
A

V

=

10, BW=3.2 MHz

40 V

PP

Response=1.4 MHz

V

S

=

±

15V

Wide-Band, Fast-Settling

40 V

PP

Amplifier

www.national.com 2

Absolute Maximum Ratings (Note 1)

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

Total Supply Voltage 42V
Input Voltage (Note 2)
Differential Input Current (Note 3)

±

10 mA
Output Current (Note 4) Internally Limited
Power Dissipation (Note 5) 500 mW
ESD Tolerance

(C=100 pF, R=1.5 kΩ)

±

2kV

Junction Temperature 150˚C
Storage Temperature Range −65˚C to +150˚C
Lead Temperature

(Soldering, 10 sec.) 300˚C

Operating Temp. Range

LM6118 −55˚C to +125˚C
LM6218A −40˚C to +85˚C
LM6218 −40˚C to +85˚C

Electrical Characteristics

±

5V ≤ VS≤±20V, V

CM

=

0V, V

OUT

=

0V, I

OUT

=

0A, unless otherwise specified. Limits with standard type face are for T

J

=

25˚C, and Bold Face Type are for Temperature Extremes.

Typ LM6118 LM6218A LM6218

Parameter Conditions 25˚C Limits Limits Limits Units

(Note 6) (Note 6) (Note 6)

Input Offset Voltage V

S

=

±

15V 0.2 1 1 3 mV (max)

224

Input Offset Voltage V− + 3V ≤ V

CM

≤ V+ − 3.5V 0.3 1.5 1.5 3.5 mV (max)

2.5 2.5 4.5

Input Offset Current V− + 3V ≤ V

CM

≤ V+ − 3.5V 20 50 50 100 nA (max)

250 100 200

Input Bias Current V− + 3V ≤ V

CM

≤ V+ − 3.5V 200 350 350 500 nA (max)

950 950 1250

Input Common Mode V− + 3V ≤ V

CM

≤ V+ − 3.5V 100 90 90 80 dB (min)

Rejection Ratio V

S

=

±

20V 85 85 75
Positive Power Supply V−=−15V 100 90 90 80 dB (min)
Rejection Ratio 5V ≤ V+ ≤ 20V 85 85 75
Negative Power Supply V+=15V 100 90 90 80 dB (min)
Rejection Ratio −20V ≤ V− ≤ −5V 85 85 75
Large Signal V

out

=

±

15V R

L

=

10k 500 150 150 100 V/mV (min)

Voltage Gain V

S

=

±

20V 100 100 70

V

out

=

±

10V R

L

=

500 200 50 50 40 V/mV (min)

V

S

=

±

15V (±20 mA) 30 30 25
V

O

Output Voltage Supply

=

±

20V R

L

=

10k 17.3

±

17

±

17

±

17 V (min)
Swing
Total Supply Current V

S

=

±

15V 5.5 7 7 7 mA (max)

7.5 7.5 7.5

Output Current Limit V

S

=

±

15V, Pulsed 65 100 100 100 mA (max)

Slew Rate, Av=−1 V

S

=

±

15V, V

out

=

±

10V 140 100 100 100 V/µs (min)

R

S

=

R

f

=

2k, C

f

=

10 pF 50 50 50

Slew Rate, Av=+1 V

S

=

±

15V, V

out

=

±

10V 75 50 50 50 V/µs (min)

R

S

=

R

f

=

2k, C

f

=

10 pF 30 30 30

Gain-Bandwidth Product V

S

=

±

15V, f

o

=

200 kHz 17 14 14 13 MHz (min)

0.01%Settling Time ∆V

out

=

10V, V

S

=

±

15V,

400

ns

A

V

=

−1 R

S

=

R

f

=

2k, C

f

=

10 pF

Input Capacitance Inverter 5 pF

Follower 3 pF

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating
the device beyond its rated operating conditions.

Note 2: Input voltage range is (V

+

− 1V) to (V−).

www.national.com3

Electrical Characteristics (Continued)

Note 3: The inputs are shunted with three series-connected diodes back-to-back for input differential clamping. Therefore differential input voltages greater than

about 1.8V will cause excessive current to flow unless limited to less than 10 mA.
Note 4: Current limiting protects the output from a short to ground or any voltage less than the supplies. With a continuous overload, the package dissipation must

be taken into account and heat sinking provided when necessary.

Note 5: Devices must be derated using a thermal resistance of 90˚C/W for the N and WM packages.
Note 6: Limits are guaranteed by testing or correlation.

Typical Performance Characteristics

Input Bias Current

DS010254-25

Input Noise Voltage

DS010254-26

Common Mode Limits

DS010254-27

Common Mode Rejection

DS010254-28

Power Supply Rejection

DS010254-29

Frequency Response
High Frequency

DS010254-30

Unity Gain Bandwidth

DS010254-31

Unity Gain Bandwidth
vs Output Load

DS010254-32

Large Signal Response
(Sine Wave)

DS010254-33

www.national.com 4