National Semiconductor LM6142, LM6144 Technical data

November 2004

LM6142/LM6144
17 MHz Rail-to-Rail Input-Output Operational Amplifiers

LM6142/LM6144, 17 MHz Rail-to-Rail Input-Output Operational Amplifiers

General Description

Using patent pending new circuit topologies, the LM6142/
LM6144 provides new levels of performance in applications
where low voltage supplies or power limitations previously
made compromise necessary. Operating on supplies of 1.8V
to over 24V, the LM6142/LM6144 is an excellent choice for
battery operated systems, portable instrumentation and oth­ers.

The greater than rail-to-rail input voltage range eliminates
concern over exceeding the common-mode voltage range.
The rail-to-rail output swing provides the maximum possible
dynamic range at the output. This is particularly important
when operating on low supply voltages.

High gain-bandwidth with 650µA/Amplifier supply current
opens new battery powered applications where previous
higher power consumption reduced battery life to unaccept­able levels. The ability to drive large capacitive loads without
oscillating functionally removes this common problem.

Connection Diagrams

8-Pin CDIP 8-Pin DIP/SO

Features

At VS= 5V. Typ unless noted.

n Rail-to-rail input CMVR −0.25V to 5.25V
n Rail-to-rail output swing 0.005V to 4.995V
n Wide gain-bandwidth: 17MHz at 50kHz (typ)
n Slew rate:

Small signal, 5V/µs
Large signal, 30V/µs

n Low supply current 650µA/Amplifier
n Wide supply range 1.8V to 24V
n CMRR 107dB
n Gain 108dB with R
n PSRR 87dB

= 10k

L

Applications

n Battery operated instrumentation
n Depth sounders/fish finders
n Barcode scanners
n Wireless communications
n Rail-to-rail in-out instrumentation amps

Top View

© 2004 National Semiconductor Corporation DS012057 www.national.com

01205714

Top View

14-Pin DIP/SO

01205702

Top View

01205701

Absolute Maximum Ratings (Note 1)

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

ESD Tolerance (Note 2) 2500V

LM6142/LM6144

Differential Input Voltage 15V

Voltage at Input/Output Pin (V

Supply Voltage (V

+−V−

) 35V

Current at Input Pin

Current at Output Pin (Note 3)

Current at Power Supply Pin 50mA

Lead Temperature

+

) + 0.3V, (V−) − 0.3V

±

10mA

±

25mA

Operating Ratings (Note 1)

Supply Voltage 1.8V ≤ V

Temperature Range

LM6142, LM6144 −40˚C ≤ T

Thermal Resistance (θ

N Package, 8-Pin Molded DIP 115˚C/W

M Package, 8-Pin Surface

Mount 193˚C/W

N Package, 14-Pin Molded

DIP 81˚C/W

M Package, 14-Pin Surface

Mount 126˚C/W

)

JA

(soldering, 10 sec) 260˚C

Storage Temp. Range −65˚C to +150˚C

Junction Temperature (Note 4) 150˚C

5.0V DC Electrical Characteristics (Note 8)

Unless otherwise specified, all limits guaranteed for TA= 25˚C, V+= 5.0V, V−= 0V, VCM=VO=V+/2 and R

Boldface limits apply at the temperature extremes.

LM6144AI LM6144BI

Symbol Parameter Conditions Typ LM6142AI LM6142BI Units

(Note 5) Limit Limit

(Note 6) (Note 6)

V

OS

Input Offset Voltage 0.3 1.0 2.5 mV

2.2 3.3 max

TCV

OS

Input Offset Voltage 3 µV/˚C

Average Drift

I

B

Input Bias Current 170 250 300 nA

0V ≤ V

≤ 5V 180 280

CM

526 526

I

OS

Input Offset Current 3 30 30 nA

80 80 max

R

IN

CMRR Common Mode 0V ≤ V

Input Resistance, C

M

≤ 4V 107 84 84

CM

126 MΩ

Rejection Ratio 78 78

0V ≤ V

≤ 5V 82 66 66

CM

79 64 64

PSRR Power Supply 5V ≤ V

+

≤ 24V 87 80 80

Rejection Ratio 78 78

V

CM

Input Common-Mode −0.25 00V

Voltage Range 5.25 5.0 5.0

A

V

Large Signal RL= 10k 270 100 80 V/mV

Voltage Gain 70 33 25 min

V

O

Output Swing RL= 100k 0.005 0.01 0.01 V

0.013 0.013 max

4.995 4.98 4.98 V

4.93 4.93 min

R

= 10k 0.02 V max

L

4.97 V min

R

= 2k 0.06 0.1 0.1 V

L

0.133 0.133 max

4.90 4.86 4.86 V

L

+

≤ 24V

≤ +85˚C

A

>

1MΩ to V+/2.

max

dB

min

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5.0V DC Electrical Characteristics (Note 8) (Continued)

Unless otherwise specified, all limits guaranteed for TA= 25˚C, V+= 5.0V, V−= 0V, VCM=VO=V+/2 and R

Boldface limits apply at the temperature extremes.

LM6144AI LM6144BI

Symbol Parameter Conditions Typ LM6142AI LM6142BI Units

(Note 5) Limit Limit

(Note 6) (Note 6)

4.80 4.80 min

I

SC

Output Short Sourcing 13 10 8 mA

Circuit Current 4.9 4 min

LM6142 35 35 mA

Sinking 24 10 10 mA

5.3 5.3 min

35 35 mA

I

SC

Output Short Sourcing 8 6 6 mA

Circuit Current 33min

LM6144 35 35 mA

Sinking 22 8 8 mA

44min

35 35 mA

I

S

Supply Current Per Amplifier 650 800 800 µA

880 880 max

>

1MΩ to V+/2.

L

LM6142/LM6144

max

max

max

max

5.0V AC Electrical Characteristics (Note 8)

Unless Otherwise Specified, All Limits Guaranteed for TA= 25˚C, V+= 5.0V, V−= 0V, VCM=VO=V+/2 and R

+

/2. Boldface limits apply at the temperature extremes.

V

LM6144AI LM6144BI

Symbol Parameter Conditions Typ LM6142AI LM6142BI Units

(Note 5) Limit Limit

(Note 6) (Note 6)

SR Slew Rate 8 V

@

V+12V 25 15 13 V/µs

PP

>

R

1kΩ 13 11 min

S

GBW Gain-Bandwidth Product f = 50 kHz 17 10 10 MHz

66min

φ

m

Phase Margin 38 Deg

Amp-to-Amp Isolation 130 dB

e

n

Input-Referred f=1kHz

16

Voltage Noise

i

n

Input-Referred f=1kHz

0.22

Current Noise

T.H.D. Total Harmonic Distortion f = 10 kHz, R

=10kΩ, 0.003 %

L

>

L

1MΩ to

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2.7V DC Electrical Characteristics (Note 8)

Unless Otherwise Specified, All Limits Guaranteed for TA= 25˚C, V+= 2.7V, V−= 0V, VCM=VO=V+/2 and R

+

/2. Boldface limits apply at the temperature extreme

V

LM6144AI LM6144BI

Symbol Parameter Conditions Typ LM6142AI LM6142BI Units

LM6142/LM6144

V

OS

I

B

I

OS

R

IN

CMRR Common Mode 0V ≤ V

PSRR Power Supply 3V ≤ V+ ≤ 5V 79

V

CM

A

V

V

O

I

S

Input Offset Voltage 0.4 1.8 2.5 mV

Input Bias Current 150 250 300 nA

Input Offset Current 4 30 30 nA

Input Resistance 128 MΩ

≤ 1.8V 90 dB

CM

Rejection Ratio 0V ≤ V

≤ 2.7V 76

CM

Rejection Ratio

Input Common-Mode −0.25 0 0 V min

Voltage Range 2.95 2.7 2.7 V max

Large Signal RL= 10k 55 V/mV

Voltage Gain min

Output Swing RL= 100kΩ 0.019 0.08 0.08 V

Supply Current Per Amplifier 510 800 800 µA

(Note 5) Limit Limit

(Note 6) (Note 6)

4.3 5 max

526 526 max

80 80 max

0.112 0.112 max

2.67 2.66 2.66 V

2.25 2.25 min

880 880 max

L

>

1MΩ to

min

2.7V AC Electrical Characteristics (Note 8)

Unless Otherwise Specified, All Limits Guaranteed for TA= 25˚C, V+= 2.7V, V−= 0V, VCM=VO=V+/2 and R

+

/2. Boldface limits apply at the temperature extreme

V

LM6144AI LM6144BI

Symbol Parameter Conditions Typ LM6142AI LM6142BI Units

(Note 5) Limit Limit

(Note 6) (Note 6)

GBW Gain-Bandwidth Product f = 50 kHz 9 MHz

φ

m

G

m

Phase Margin 36 Deg

Gain Margin 6 dB

L

>

1MΩ to

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24V Electrical Characteristics (Note 8)

Unless Otherwise Specified, All Limits Guaranteed for TA= 25˚C, V+= 24V, V−= 0V, VCM=VO=V+/2 and R

+

/2. Boldface limits apply at the temperature extreme

V

LM6144AI LM6144BI

Symbol Parameter Conditions Typ LM6142AI LM6142BI Units

(Note 5) Limit Limit

(Note 6) (Note 6)

V

OS

Input Offset Voltage 1.3 2 3.8 mV

4.8 4.8 max

I

B

I

OS

R

IN

CMRR Common Mode 0V ≤ V

PSRR Power Supply 0V ≤ V

Input Bias Current 174 nA

Input Offset Current 5 nA

Input Resistance 288 MΩ

≤ 23V 114 dB

CM

Rejection Ratio 0V ≤ V

≤ 24V 100

CM

≤ 24V 87

CM

Rejection Ratio

V

CM

Input Common-Mode −0.25 0 0 V min

Voltage Range 24.25 24 24 V max

A

V

Large Signal RL= 10k 500 V/mV

Voltage Gain min

V

O

Output Swing RL=10kΩ 0.07 0.15 0.15 V

0.185 0.185 max

23.85 23.81 23.81 V

23.62 23.62 min

I

S

Supply Current Per Amplifier 750 1100 1100 µA

1150 1150 max

GBW Gain-Bandwidth Product f = 50 kHz 18 MHz

Note 1: 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 specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Charactenstics.

Note 2: Human body model, 1.5kΩ in series with 100pF.

Note 3: Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature can result in exceeding the

maximum allowed junction temperature of 150˚C.

Note 4: The maximum power dissipation is a function of T
(T

J(MAX)−TA

Note 5: Typical values represent the most likely parametric norm.

Note 6: All limits are guaranteed by testing or statistical analysis.

Note 7: For guaranteed military specifications see military datasheet MNLM6142AM-X.

Note 8: Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of

the device such that T
TA.

)/θJA. All numbers apply for packages soldered directly into a PC board.

. No guarantee of parametric performance is indicated in the electrical tables under conditions of the internal self heating where T

J=TA

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

J(MAX)

>

L

1MΩ to

max

max

min

LM6142/LM6144

>

J

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