NSC LPC662IMX, LPC662IM, LPC662AIMX, LPC662AIM, LPC662MWC Datasheet

LPC662
Low Power CMOS Dual Operational Amplifier

General Description

The LPC662 CMOS Dual operational amplifier is ideal for
operation from a single supply. It features a wide range of
operating voltage from +5V to +15V, rail-to-rail output swing
in addition to an input common-mode range that includes
ground. Performance limitations that have plagued CMOS
amplifiers in the past are not a problem with this design. In­put V

OS

, drift, and broadband noise as well as voltage gain
(into 100 kΩ and5kΩ) are all equal to or better than widely
accepted bipolar equivalents, while the power supply re­quirement is typically less than 0.5 mW.

This chip is built with National’s advanced Double-Poly
Silicon-Gate CMOS process.

See the LPC660 datasheet for a Quad CMOS operational
amplifier and LPC661 for a single CMOS operational ampli­fier with these same features.

Applications

n High-impedance buffer
n Precision current-to-voltage converter

n Long-term integrator
n High-impedance preamplifier
n Active filter
n Sample-and-Hold circuit
n Peak detector

Features

n Rail-to-rail output swing
n Micropower operation (

<

0.5 mW)

n Specified for 100 kΩ and5kΩloads
n High voltage gain 120 dB
n Low input offset voltage 3 mV
n Low offset voltage drift 1.3 µV/˚C
n Ultra low input bias current 2 fA
n Input common-mode includes GND
n Operating range from +5V to +15V
n Low distortion 0.01%at 1 kHz
n Slew rate 0.11 V/µs
n Full military temperature range available

Connection Diagram

Ordering Information

Package Temperature Range NSC

Drawing

Transport

Media

Military Industrial

8-Pin LPC662AMD D08C Rail

Side Brazed

Ceramic DIP

8-Pin LPC662AIM M08A Rail

Small Outline or LPC662IM Tape and Reel

8-Pin LPC662AIN N08E Rail

Molded DIP or LPC662IN

8-Pin LPC662AMJ/883 J08A Rail

Ceramic DIP

8-Pin DIP/SO

DS010548-1

Top View

March 1998

LPC662 Low Power CMOS Dual Operational Amplifier

© 1999 National Semiconductor Corporation DS010548 www.national.com

Absolute Maximum Ratings (Note 3)

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

Differential Input Voltage

±

Supply Voltage

Supply Voltage (V

+−V−

) 16V

Output Short Circuit to V

+

(Note 11)

Output Short Circuit to V

−

(Note 1)

Lead Temperature

(Soldering, 10 sec.) 260˚C
Storage Temp. Range −65˚C to +150˚C
Junction Temperature 150˚C
ESD Rating

(C=100 pF, R=1.5 kΩ) 1000V
Power Dissipation (Note 2)
Current at Input Pin

±

5mA

Current at Output Pin

±

18 mA

Current at Power Supply Pin 35 mA
Voltage at Input/Output Pin (V

+

) + 0.3V, (V−) −0.3V

Operating Ratings (Note 3)

Temperature Range

LPC662AMJ/883 −55˚C ≤ T

J

≤ +125˚C

LPC662AM −55˚C ≤ T

J

≤ +125˚C

LPC662AI −40˚C ≤ T

J

≤ +85˚C

LPC662I −40˚C ≤ T

J

≤ +85˚C
Supply Range 4.75V to 15.5V
Power Dissipation (Note 9)

Thermal Resistance (θ

JA

) (Note 10)
8-Pin Ceramic DIP 100˚C/W
8-Pin Molded DIP 101˚C/W
8-Pin SO 165˚C/W
8-Pin Side Brazed Ceramic DIP 100˚C/W

DC Electrical Characteristics

Unless otherwise specified, all limits guaranteed for T

J

=

25˚C. Boldface limits apply at the temperature extremes. V

+

=

5V, V

−

=

0V, V

CM

=

1.5V, V

O

=

2.5V and R

L

>

1M unless otherwise specified.

LPC662AM LPC662AI LPC662I

Parameter Conditions Typ LPC662AMJ/883 Limit Limit Units

Limit (Note 4) (Note 4)

(Notes 4, 8)

Input Offset Voltage 1 3 3 6 mV

3.5 3.3 6.3 max
Input Offset Voltage 1.3 µV/˚C
Average Drift
Input Bias Current 0.002 20 pA

100 4 4 max

Input Offset Current 0.001 20 pA

100 2 2 max

Input Resistance

>

1 Tera Ω

Common Mode 0V ≤ V

CM

≤ 12.0V 83 70 70 63 dB

Rejection Ratio V

+

=

15V 68 68 61 min

Positive Power Supply 5V ≤ V

+

≤ 15V 83 70 70 63 dB

Rejection Ratio V

O

=

2.5V 68 68 61 min

Negative Power Supply 0V ≤ V

−

≤ −10V 94 84 84 74 dB
Rejection Ratio 82 83 73 min
Input Common-Mode V

+

=

5V and 15V −0.4 −0.1 −0.1 −0.1 V

Voltage Range For CMRR ≥ 50 dB 000max

V

+

− 1.9 V+− 2.3 V+− 2.3 V+− 2.3 V

V

+

− 2.6 V+− 2.5 V+− 2.5 min

Large Signal R

L

=

100 kΩ (Note 5) 1000 400 400 300 V/mV

Voltage Gain Sourcing 250 300 200 min

Sinking 500 180 180 90 V/mV

70 120 70 min

R

L

=

5kΩ(Note 5) 1000 200 200 100 V/mV
Sourcing 150 160 80 min
Sinking 250 100 100 50 V/mV

35 60 40 min

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DC Electrical Characteristics (Continued)

Unless otherwise specified, all limits guaranteed for T

J

=

25˚C. Boldface limits apply at the temperature extremes. V

+

=

5V, V

−

=

0V, V

CM

=

1.5V, V

O

=

2.5V and R

L

>

1M unless otherwise specified.

LPC662AM LPC662AI LPC662I

Parameter Conditions Typ LPC662AMJ/883 Limit Limit Units

Limit (Note 4) (Note 4)

(Notes 4, 8)

Output Swing V

+

=

5V 4.987 4.970 4.970 4.940 V

R

L

=

100 kΩ to V

+

/2 4.950 4.950 4.910 min

0.004 0.030 0.030 0.060 V

0.050 0.050 0.090 max

V

+

=

5V 4.940 4.850 4.850 4.750 V

R

L

=

5kΩto V

+

/2 4.750 4.750 4.650 min

0.040 0.150 0.150 0.250 V

0.250 0.250 0.350 max

V

+

=

15V 14.970 14.920 14.920 14.880 V

R

L

=

100 kΩ to V

+

/2 14.880 14.880 14.820 min

0.007 0.030 0.030 0.060 V

0.050 0.050 0.090 max

V

+

=

15V 14.840 14.680 14.680 14.580 V

R

L

=

5kΩto V

+

/2 14.600 14.600 14.480 min

0.110 0.220 0.220 0.320 V

0.300 0.300 0.400 max

Output Current Sourcing, V

O

=

0V 22 16 16 13 mA

V

+

=

5V 12 14 11 min

Sinking, V

O

=

5V 21 16 16 13 mA

12 14 11 min

Output Current Sourcing, V

O

=

0V 40 19 28 23 mA

V

+

=

15V 19 25 20 min

Sinking, V

O

=

13V 39 19 28 23 mA

(Note 11) 19 24 19 min

Supply Current Both Amplifiers 86 120 120 140 µA

V

O

=

1.5V 145 140 160 max

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AC Electrical Characteristics

Unless otherwise specified, all limits guaranteed for T

J

=

25˚C. Boldface limits apply at the temperature extremes. V

+

=

5V, V

−

=

0V, V

CM

=

1.5V, V

O

=

2.5V and R

L

>

1M unless otherwise specified.

LPC662AM LPC662AI LPC662I

Parameter Conditions Typ LPC662AMJ/883 Limit Limit Units

Limit (Note 4) (Note 4)

(Notes 4, 8)

Slew Rate (Note 6) 0.11 0.07 0.07 0.05 V/µs

0.04 0.05 0.03 min
Gain-Bandwidth Product 0.35 MHz
Phase Margin 50 Deg
Gain Margin 17 dB
Amp-to-Amp Isolation (Note 7) 130 dB
Input Referred Voltage Noise F=1 kHz 42

Input Referred Current Noise F=1 kHz 0.0002

Total Harmonic Distortion F=1 kHz, A

V

=

−10, V

+

=

15V 0.01

%

R

L

=

100 kΩ,V

O

=

8V

PP

Note 1: Applies to both single supply and split supply operation. Continuous short circuit operation at elevated ambient temperature and/or multiple Op Amp shorts
can result in exceeding the maximum allowed junction temperature of 150˚C. Output currents in excess of

±

30 mA over long term may adversely affect reliability.

Note 2: The maximum power dissipation is a functionofT

J(max)

, θJA, and TA. The maximum allowable power dissipation of any ambient temperature is P

D

=

(T

J(max)

−TA)/θJA.
Note 3: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in-

tended 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.

Note 4: Limits are guaranteed by testing or correlation.
Note 5: V

+

=

15V, V

CM

=

7.5V and R

L

connected to 7.5V. For Sourcing tests, 7.5V ≤ VO≤ 11.5V. For Sinking tests, 2.5V ≤ VO≤ 7.5V.

Note 6: V

+

=

15V. Connected as Voltage Follower with 10V step input. Number specified is the slower of the positive and negative slew rates.

Note 7: Input referred. V

+

=

15V and R

L

=

100 kΩ connected to V

+

/2. Each amp excited in turn with 1 kHz to produce V

O

=

13 V

PP

.

Note 8: A military RETS electrical test specification is available on request. At the time of printing, the LPC662AMJ/883 RETS specification complied fully with the
boldface limits in this column. The LPC662AMJ/883 may also be procured to a Standard Military Drawing specification.

Note 9: For operating at elevated temperatures the device must be derated based on the thermal resistance θ

JA

with P

D

=

(T

J−TA

)/θJA.

Note 10: All numbers apply for packages soldered directly into a PC board.
Note 11: Do not connect output to V

+

when V+is greater than 13V or reliability may be adversely affected.

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Typical Performance Characteristics V

S

=

±

7.5V, T

A

=

25˚C unless otherwise specified

Supply Current vs
Supply Voltage

DS010548-28

Input Bias Current
vs Temperature

DS010548-29

Input Common-Mode
Voltage Range vs
Temperature

DS010548-30

Output Characteristics
Current Sinking

DS010548-31

Output Characteristics
Current Sourcing

DS010548-32

Input Voltage Noise
vs Frequency

DS010548-33

Crosstalk Rejection
vs Frequency

DS010548-34

CMRR vs Frequency

DS010548-35

CMRR vs Temperature

DS010548-36

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