NSC LMC6024IN Datasheet

LMC6024
Low Power CMOS Quad Operational Amplifier

LMC6024 Low Power CMOS Quad Operational Amplifier

August 2000

General Description

The LMC6024 is a CMOS quad operational amplifier which
can operate from either a single supply or dual supplies. Its
performance features include an input common-mode range
that reaches V
100 kΩ and5kΩloads) that is equal to or better than widely
accepted bipolar equivalents, while the power supply re­quirement is less than 1 mW.

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

See the LMC6022 datasheet for a CMOS dual operational
amplifier with these same features.

−

, low input bias current and voltage gain (into

Features

n Specified for 100 kΩ and5kΩloads
n High voltage gain 120 dB
n Low offset voltage drift 2.5 µV/˚C

Connection Diagram

14-Pin DIP/SO

n Ultra low input bias current 40 fA
n Input common-mode range includes V
n Operating range from +5V to +15V supply
n Low distortion 0.01% at 1 kHz
n Slew rate 0.11 V/µs
n Micropower operation 1 mW

−

Applications

n High-impedance buffer or preamplifier
n Current-to-voltage converter
n Long-term integrator
n Sample-and-hold circuit
n Peak detector
n Medical instrumentation
n Industrial controls

DS011235-1

Top View

© 2000 National Semiconductor Corporation DS011235 www.national.com

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/

LMC6024

Distributors for availability and specifications.

Differential Input Voltage

+−V−

Supply Voltage (V

) 16V

Lead Temperature

(Soldering, 10 sec.) 260˚C
Storage Temperature Range −65˚C to +150˚C
Voltage at Output/Input Pin (V
Current at Input Pin
Current at Output Pin

±

Supply Voltage

+

) + 0.3V, (V−) − 0.3V

±

±

18 mA

5mA

Output Short Circuit to V
Junction Temperature 150˚C
ESD Tolerance (Note 4) 1000V
Power Dissipation (Note 3)

Operating Ratings

Temperature Range −40˚C ≤ TJ≤ +85˚C
Supply Voltage Range 4.75V to 15.5V
Power Dissipation (Note 10)
Thermal Resistance (θ

14-Pin DIP 85˚C/W
14-Pin SO 115˚C/W

−

), (Note 11)

JA

Current at Power Supply Pin 35 mA
Output Short Circuit to V

+

(Note 12)

DC Electrical Characteristics

The following specifications apply for V+= 5V, V−= 0V, VCM= 1.5V, VO= 2.5V, and RL= 1M unless otherwise noted. Bold­face limits apply at the temperature extremes; all other limits TJ= 25˚C.

Typical LMC6024I

Symbol Parameter Conditions (Note 5) Limit Units

(Note 6)

V

OS

∆V

/∆T Input Offset Voltage 2.5 µV/˚C

OS

I

B

I

OS

R

IN

CMRR Common Mode 0V ≤ V

+PSRR Positive Power Supply 5V ≤ V

−PSRR Negative Power Supply 0V ≤ V

V

CM

A

V

Input Offset Voltage 1 9 mV

11 Max

Average Drift
Input Bias Current 0.04 pA

200 Max

Input Offset Current 0.01 pA

100 Max

Input Resistance

Rejection Ratio V

≤ 12V 83 63 dB

CM

+

= 15V 61 Min

+

≤ 15V 83 63 dB

>

1 TeraΩ

Rejection Ratio 61 Min

−

≤ −10V 94 74 dB
Rejection Ratio 73 Min
Input Common-Mode V+= 5V and 15V −0.4 −0.1 V
Voltage Range For CMRR ≥ 50 DB 0 Max

+

V

− 1.9 V+− 2.3 V

+

V

− 2.5 Min

Large Signal Voltage Gain RL= 100 kΩ (Note 7) 1000 200 V/mV

Sourcing 100 Min
Sinking 500 90 V/mV

40 Min

R

=5kΩ(Note 7) 1000 100 V/mV

L

Sourcing 75 Min
Sinking 250 50 V/mV

20 Min

(Note 2)

www.national.com 2

DC Electrical Characteristics (Continued)

The following specifications apply for V+= 5V, V−= 0V, VCM= 1.5V, VO= 2.5V, and RL= 1M unless otherwise noted. Bold­face limits apply at the temperature extremes; all other limits TJ= 25˚C.

Typical LMC6024I

Symbol Parameter Conditions (Note 5) Limit Units

(Note 6)

V

O

I

O

I

S

Output Voltage Swing V+= 5V 4.987 4.40 V

R

= 100 kΩ to 2.5V 4.43 Min

L

0.004 0.06 V

0.09 Max

+

V

= 5V 4.940 4.20 V

R

=5kΩto 2.5V 4.00 Min

L

0.040 0.25 V

0.35 Max

+

V

= 15V 14.970 14.00 V

R

= 100 kΩ to 7.5V 13.90 Min

L

0.007 0.06 V

0.09 Max

+

V

= 15V 14.840 13.70 V

R

=5kΩto 7.5V 13.50 Min

L

0.110 0.32 V

0.40 Max

Output Current V+=5V 22 13 mA

Sourcing, V
Sinking V

=0V 9 Min

O

=5V 21 13 mA

O

(Note 2) 9 Min

+

V

= 15V 40 23 mA
Sourcing, V
Sinking, V

=0V 15 Min

O

= 13V 39 23 mA

O

(Note 12) 15 Min

Supply Current All Four Amplifiers 160 240 µA

V

= 1.5V 280 Max

O

LMC6024

www.national.com3

AC Electrical Characteristics

The following specifications apply for V+= 5V, V−= 0V, VCM= 1.5V, VO= 2.5V, and RL= 1M unless otherwise noted. Bold­face limits apply at the temperature extremes; all other limits TJ= 25˚C.

LMC6024

Symbol Parameter Conditions (Note 5) Limit Units

SR Slew Rate (Note 8) 0.11 0.05 V/µs

GBW Gain-Bandwidth Product 0.35 MHz

θ

M

G

M

e

n

Phase Margin 50 Deg
Gain Margin 17 dB
Amp-to-Amp Isolation (Note 9) 130 dB
Input-Referred Voltage Noise F = 1 kHz 42

Typical LMC6024I

(Note 6)

0.03 Min

i

n

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component 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.

Note 2: 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

Note 3: The maximum power dissipation is a function of T

−TA)/θJA.

Note 4: Human body model, 100 pF discharge through a 1.5 kΩ resistor.
Note 5: Typical values represent the most likely parametric norm.
Note 6: All limits are guaranteed by testing or correlation.
Note 7: V
Note 8: V
Note 9: Input referred, V
Note 10: For operating at elevated temperatures the device must be derated based on the thermal resistance θ
Note 11: All numbers apply for packages soldered directly into a PC board.
Note 12: Do not connect output to V

Input-Referred Current Noise F = 1 kHz 0.0002

±

30 mA over long term may adversly affect reliability.

, θJA, and TA. The maximum allowable power dissipation at any ambient temperature is PD=(T

J(max)

+

= 15V, VCM= 7.5V, and RLconnected to 7.5V. For Sourcing tests, 7.5V ≤ VO≤ 11.5V. For Sinking tests, 2.5V ≤ VO≤ 7.5V.

+

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

+

= 15V and RL= 100 kΩ connected to 7.5V. Each amp excited in turn with 1 kHz to produce VO=13VPP.

with PD=(TJ−TA)/θJA.

JA

+

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

J(max)

www.national.com 4

LMC6024

Typical Performance Characteristics V

Supply Current
vs Supply Voltage

DS011235-27

Common-Mode Voltage
Range vs Temperature

=±7.5V, TA= 25˚C unless otherwise specified

S

Input Bias Current
vs Temperature

DS011235-28

Output Characteristics
Current Sinking

Output Characteristics
Current Sourcing

DS011235-29

DS011235-31

DS011235-30

Input Voltage Noise
vs Frequency

DS011235-32

www.national.com5