Datasheet LF441C, LF442C, LF444C Datasheet (MOTOROLA)

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These JFET input operational amplifiers are designed for low power applications. They feature high input impedance, low input bias current and low input offset current. Advanced design techniques allow for higher slew rates, gain bandwidth products and output swing. The LF441C device provides for the external null adjustment of input offset voltage.

These devices are specified over the commercial temperature range. All are available in plastic dual in–line and SOIC packages.

• Low Supply Current: 200 µA/Amplifier

• Low Input Bias Current: 5.0 pA

• High Gain Bandwidth: 2.0 MHz

• High Slew Rate: 6.0 V/µs

• High Input Impedance: 10

• Large Output Voltage Swing: ±14 V

• Output Short Circuit Protection

Representative Schematic Diagram

J1 J2

Inputs

Q1 Q2

12

(Each Amplifier)

+

Q3

Ω

Q4

C1

Q5

D2

R3 D1

C2

Q7

Q6

R4

V

CC

Output



LOW POWER

JFET INPUT

OPERATIONAL AMPLIFIERS

SEMICONDUCTOR

TECHNICAL DATA

8

1

N SUFFIX

PLASTIC PACKAGE

CASE 626

PIN CONNECTIONS

Offset Null

Inputs

V

EE

(Single, Top View)

Output 1

Inputs 1

V

EE

(Dual, Top View)

1 2

– +

3 4

1

2

– +

3

2

4

8

1

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SO–8)

8

NC

7

V

CC

6

Output

5

Offset Null

8

V

CC

7

Output 2

6

–

Inputs 2

+

5

R1 R2

15

*

R5

*

*Null adjustment pins for LF441 only.

ORDERING INFORMATION

Operating

Device Function

LF441CD

Single

Temperature Range

LF441CN LF442CD

LF442CN LF444CD

Dual

TA = 0° to +70°C

Quad SO–14

LF444CN

MOTOROLA ANALOG IC DEVICE DATA

+

5

1.5 k

1

100 k

Ω

LF441C input offset voltage

null adjust circuit

Package

SO–8

Plastic DIP

SO–8

Plastic DIP

V

EE

14

V

EE

1

N SUFFIX

PLASTIC PACKAGE

CASE 646

14

1

D SUFFIX

PLASTIC PACKAGE

CASE 751A

(SO–14)

PIN CONNECTIONS

Output 1

Inputs 1

Inputs 2

Output 2

1

––

2

1

3

++

V

4

CC

++

5

23

6

––

78

(Quad, Top View)

 Motorola, Inc. 1996 Rev 0

14

Output 4

13

4

Inputs 4

12

11

V

EE

10

Inputs 3

9

Output 3

1

LF441C LF442C LF444C

MAXIMUM RATINGS

Rating Symbol Value Unit

Supply Voltage (from VCC to VEE) V Input Differential V oltage Range (Note 1) V Input Voltage Range (Notes 1 and 2) V Output Short Circuit Duration (Note 3) t Operating Junction Temperature (Note 3) T Storage Temperature Range T

NOTES: 1. Differential voltages are at the noninverting input terminal with respect to the inverting

input terminal.

2.The magnitude of the input voltage must never exceed the magnitude of the supply or 15 V, whichever is less.

3.Power dissipation must be considered to ensure maximum junction temperature (TJ) is not exceeded (see Figure 1).

S

IDR

IR

SC

J

stg

+36 V

±30 V ±15 V

Indefinite sec

+150 °C

–60 to +150 °C

DC ELECTRICAL CHARACTERISTICS (V

Characteristic

Input Offset Voltage (RS = 10 kΩ, VO = 0 V) V

Single: TA = +25°C – 3.0 5.0

TA = 0° to +70°C – – 7.5

Dual: TA = +25°C – 3.0 5.0

TA = 0° to +70°C – – 7.5

Quad: TA = +25°C – 3.0 10

TA = 0° to +70°C – – 12

Average Temperature Coefficient of Offset V oltage ∆VIO/∆T – 10 – µV/°C

(RS = 10 kΩ, VO = 0 V)

Input Offset Current (VCM = 0 V, VO = 0 V) I

TA = +25°C – 0.5 50 pA TA = 0° to +70°C – – 1.5 nA

Input Bias Current (VCM = 0 V, VO = 0 V) I

TA = +25°C – 3.0 100 pA TA = 0° to +70°C – – 3.0 nA

Common Mode Input Voltage Range (TA = +25°C) V

Large Signal Voltage Gain (VO = ±10 V, RL = 10 kΩ) A

TA = +25°C 25 60 – TA = 0° to +70°C 15 – –

Output Voltage Swing (RL = 10 kΩ) VO +

Common Mode Rejection (RS ≤ 10 kΩ, VCM = V Power Supply Rejection (RS = 100 Ω, VCM = 0 V, VO = 0 V) PSR 70 84 – dB Power Supply Current (No Load, VO = 0 V) I

Single – 200 250 Dual – 400 500 Quad – 800 1000

= +15 V, VEE = –15 V, TA = 0° to 70°C, unless otherwise noted.)

CC

Symbol Min Typ Max Unit

IO

IB

ICR

VOL

VO –

, VO = 0 V) CMR 70 86 – dB

ICR

D

–

–11

+12

–

+14.5

–12

+14 –14

+11

–

–12

mV

V/mV

V

µA

2

MOTOROLA ANALOG IC DEVICE DATA

LF441C LF442C LF444C

AC ELECTRICAL CHARACTERISTICS (V

Characteristic Symbol Min Typ Max Unit

Slew Rate (Vin = –10 V to +10 V, RL = 10 kΩ, CL = 10 pF, AV = +1.0) SR 0.6 6.0 – V/ µs Settling Time To within 10 mV t

(AV = –1.0, RL = 10 kΩ, VO = 0 V to +10 V) To within 1.0 mV – 2.2 –

Gain Bandwidth Product (f = 200 kHz) GBW 0.6 2.0 – MHz Equivalent Input Noise Voltage (RS = 100 Ω, f = 1.0 kHz) e Equivalent Input Noise Current (f = 1.0 kHz) i

Input Resistance R Channel Separation (f = 1.0 Hz to 20 kHz) CS – 120 – dB

Figure 1. Maximum Power Dissipation versus

T emperature for Package Variations

2400

2000

8 & 14 Pin Plastic

1600

1200

Package

SO–14

= +15 V, VEE = –15 V, TA = +25°C, unless otherwise noted.)

CC

s

n

i

– 1.6 – µs

– 47 – – 0.01 –

– 10

Figure 2. Input Bias Current versus

Input Common Mode Voltage

20

VCC = +15 V VEE = –15 V

°

C

TA = 25

15

10

12

nV/ Hz√ pA/ Hz√

– Ω

SO–8

800

5.0

, INPUT BIAS CURRENT (pA)

400

MAXIMUM POWER DISSIPATION (mW)

D,

P

0 –55 –40 –20 0 20 40 60 80 100 120 140 160

TA, AMBIENT TEMPERATURE (°C) V

IB

I

0

–10 –5.0 0 5.0 10

, INPUT COMMON MODE VOLTAGE (V)

ICR

Figure 3. Input Bias Current versus T emperature Figure 4. Supply Current versus Supply V oltage

1000

VCC = +15 V

100

VEE = –15 V VCM = 0 V

10

1.0

0.1

INPUT BIAS CURRENT (nA)

IB,

I

0.01

0.001 –55 –25 0 25 50 75 100 125 0 5.0 10 15 20 25

TA, AMBIENT TEMPERATURE (°C)

300

µ

260

220

180

140

SUPPLY CURRENT PER AMPLIFIER ( A)

D,

I

100

125°C

VCC,

25°C

–55°C



VEE

, SUPPLY VOLTAGE (V)

MOTOROLA ANALOG IC DEVICE DATA

3

LF441C LF442C LF444C

Figure 5. Positive Input Common Mode V oltage

Range versus Positive Supply V oltage

20

–55°C ≤ TA ≤ 125°C –55°C ≤ TA ≤ 125°C

15

10

VOLTAGE RANGE (V)

5.0

POSITIVE INPUT COMMON MODE

ICR,

+V

0

VCC, POSITIVE SUPPLY VOLTAGE (V) VEE, NEGATIVE SUPPLY VOLTAGE (V)

Figure 7. Output Voltage versus Output

Source Current

20

15

10

VCC = +15 V VEE = –15 V

–55°C

25°C

125°C

Figure 6. Negative Input Common Mode V oltage

Range versus Negative Supply V oltage

–20

–15

–10

–5.0

VOLTAGE RANGE (V)

NEGATIVE INPUT COMMON MODE

ICR,

0

2015105.00

–V

0 –5.0 –10 –15 –20

Figure 8. Output Voltage versus

Output Sink Current

–20

VCC = +15 V VEE = –15 V

–15

–10

125°C

25°C

–55°C

, OUTPUT VOLTAGE (V)

5.0

O

V

0

1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 2.0 4.0 6.0 8.0 10 12 14 16 18 20

0

IO, OUTPUT SOURCE CURRENT (mA) –IO, OUTPUT SINK CURRENT (mA)

Figure 9. Output Voltage Swing

versus Supply V oltage

40

)

35

p–p

30 25 20 15 10

, OUTPUT VOL TAGE SWING (V

5.0

O

V

RL = 10 k

Ω

–55°C ≤ TA ≤ 125°C

0

0 2.0 4.0 6.0 8.0 10 12 14 16 1.0 k 2.0 k 3.0 k 4.0 k 6.0 k 8.0 k 10 k

VCC,



VEE

, SUPPLY VOLTAGE (V) RL, LOAD RESISTANCE (Ω)

–5.0

, OUTPUT VOLTAGE (V)

O

V

0

)

28

p–p

26 24 22

20 18

, OUTPUT VOL TAGE SWING (V

O

16

V

Figure 10. Output Voltage Swing

versus Load Resistance

VCC = +15 V VEE = –15 V

°

TA = 25

C

4

MOTOROLA ANALOG IC DEVICE DATA

LF441C LF442C LF444C

Figure 11. Normalized Gain Bandwidth

Product versus T emperature

1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6

GBW, NORMALIZED GAIN BANDWIDTH PRODUCT

–75 –50 –25 0 25 50 75 100 125

TA, AMBIENT TEMPERATURE (°C) f, FREQUENCY (MHz)

VCC = +15 V VEE = –15 V RL = 10 k CL = 100 pF

Figure 13. Slew Rate versus T emperature

8.0

s)

µ

7.0

Figure 12. Open Loop V oltage Gain and

Phase versus Frequency

Ω

20

10

0

VCC = +15 V VEE = –15 V

–10

, OPEN LOOP VOL TAGE GAIN (dB)

VOL

–20

A

0.1 1.0 10

Ω

RL = 10 k CL = 100 pF

°

C

TA = 25

Phase

Gain

90

135

180

225

EXCESS PHASE (DEGREES)

φ,

270

Figure 14. Total Output Distortion

versus Frequency

2.5 VCC = +15 V VEE = –15 V

2.0

TA = 25

°

C

6.0

SR, SLEW RATE (V/

VCC = +15 V

5.0 VEE = –15 V

Ω

RL = 10 k AV = +1.0

4.0

–75 –50 –25 0 25 50 75 100 125

TA, AMBIENT TEMPERATURE (°C) f, FREQUENCY (Hz)

Figure 15. Output Voltage Swing

versus Frequency

)

p–p

30

20

VCC = +15 V VEE = –15 V

10

, OUTPUT VOL TAGE SWING (V

O

V

0

1.0 k

RL = 10 k AV = +1.0 1% THD

°

TA = 25

Ω

C

10 k

f, FREQUENCY (Hz) f, FREQUENCY (Hz)

100 k 1.0 M

1.5

1.0 AV = 100

0.5

THD, OUTPUT DISTORTION (%)

0

10 100 1.0 k 10 k 100 k

AV = 10

Figure 16. Open Loop V oltage

Gain versus Frequency

100

80

60

40

VCC = +15 V

, OPEN LOOP VOL TAGE GAIN (dB)

VEE = –15 V

20

VOL

A

0

0.1 1.0 10 100 1.0 k 10 k 100 k 1.0 M 10 M

RL = 10 k TA = 25°C

Ω

MOTOROLA ANALOG IC DEVICE DATA

5

LF441C LF442C LF444C

Figure 17. Common Mode Rejection

versus Frequency

140

120 100

80 60

VCC = +15 V

40

VEE = –15 V VCM = 0 V

20

∆

VCM = ±1.5 V

°

C

TA = 25

0

CMR, COMMON MODE REJECTION (dB)

100 1.0 k 10 k 100 k 1.0 M

∆

V

CM

CMR = 20 Log

f, FREQUENCY (Hz) f, FREQUENCY (Hz)

A

DM

+

∆

V

CM

x A

()

DM

∆

V

O

Figure 19. Input Noise V oltage versus Frequency

70

) Hz

√

60

nV/

50

Figure 18. Power Supply Rejection

versus Frequency

140

VCC = +15 V VEE = –15 V

∆

V

O

120 100

80 60 40 20

0

PSR, POWER SUPPLY REJECTION (dB)

100 1.0 k 10 k 100 k 1.0 M

°

C

TA = 25

+PSR = 20 Log

–PSR = 20 Log

–PSR

∆

VO /A

(

∆

VO /A

(

∆

+PSR

(∆VEE=±1.5 V)

DM

)

V

CC

DM

)

V

EE

∆

V

CC

–

A

DM

+

(∆VCC = ±1.5 V)

∆

V

∆

V

EE

O

Figure 20. Open Loop V oltage

Gain versus Supply V oltage

1.0 M RL = 10 k

Ω

40 30 20

INPUT NOISE VOLTAGE (

10

n

e ,

0

10 100 1.0 k 10 k 100 k

f, FREQUENCY (Hz)

VCC = +15 V VEE = –15 V VCM = 0 V TA = 25

°

C

100 k

25°C

, OPEN LOOP VOL TAGE GAIN (V V)

VOL

A

10 k

0 5.0 10 15 20 25

VCC, VEE, SUPPLY VOLTAGE (V)

Figure 21. Output Impedance versus Frequency Figure 22. Inverter Settling Time

350

VCC = +15 V

300

)

Ω

, OUTPUT IMPEDANCE (

O

Z

VEE = –15 V

°

C

TA = 25

250 200

150 100

50

0

100 1.0k 10k 100k 1.0M

AV = 100 AV = 10 AV = 1.0

f, FREQUENCY (Hz)

–5.0

, OUTPUT VOL TAGE STEP FROM 0 V (V)

O

V

VCC = +15 V

10

VEE = –15 V

°

C

TA = 25

5.0

0

–10

0.1 1.0 10

10 mV

ts, SETTLING TIME (

1.0 mV

µ

s)

125°C

–55°C

6

MOTOROLA ANALOG IC DEVICE DATA

LF441C LF442C LF444C

SMALL SIGNAL RESPONSE

Figure 23. Inverting Figure 24. Noninverting

VCC = +15 V VEE = –15 V

Ω

RL = 10 k CL = 10 pF AV = –1.0

°

C

TA = 25

0

, OUTPUT VOLTAGE (50 mV/DIV)

O

V

VCC = +15 V VEE = –15 V

Ω

RL = 10 k CL = 10 pF AV = +1.0

°

C

TA = 25

0

, OUTPUT VOLTAGE (50 mV/DIV)

O

V

t, TIME (0.5

µ

s/DIV)

t, TIME (0.5 µs/DIV)

LARGE SIGNAL RESPONSE

Figure 25. Inverting Figure 26. Noninverting

VCC = +15 V VEE = –15 V RL = 10 k CL = 10 pF AV = –1.0

°

TA = 25

0

, OUTPUT VOLTAGE (5.0 V/DIV)

O

V

VCC = +15 V

Ω

C

µ

t, TIME (2.0

s/DIV)

VEE = –15 V RL = 10 k CL = 10 pF AV = +1.0

°

TA = 25

0

, OUTPUT VOLTAGE (5.0 V/DIV)

O

V

Ω

C

µ

t, TIME (2.0

s/DIV)

MOTOROLA ANALOG IC DEVICE DATA

7

NOTE 2

–T–

SEATING PLANE

H

LF441C LF442C LF444C

OUTLINE DIMENSIONS

58

–B–

14

F

–A–

C

N

D

G

0.13 (0.005) B

K

M

T

N SUFFIX

PLASTIC PACKAGE

CASE 626–05

ISSUE K

L

J

M

A

M

NOTES:

1. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL.

2. PACKAGE CONTOUR OPTIONAL (ROUND OR SQUARE CORNERS).

3. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.

DIM MIN MAX MIN MAX

A 9.40 10.16 0.370 0.400 B 6.10 6.60 0.240 0.260 C 3.94 4.45 0.155 0.175 D 0.38 0.51 0.015 0.020 F 1.02 1.78 0.040 0.070 G 2.54 BSC 0.100 BSC H 0.76 1.27 0.030 0.050 J 0.20 0.30 0.008 0.012 K 2.92 3.43 0.115 0.135 L 7.62 BSC 0.300 BSC M ––– 10 ––– 10 N 0.76 1.01 0.030 0.040

INCHESMILLIMETERS

__

A

C

A1

D SUFFIX

PLASTIC PACKAGE

CASE 751–05

(SO–8)

ISSUE R

D

58

0.25MB

E

1

B

e

H

4

M

h

X 45

_

q

C

A

SEATING PLANE

0.10

L

B

SS

A0.25MCB

NOTES:

1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994.

2. DIMENSIONS ARE IN MILLIMETERS.

3. DIMENSION D AND E DO NOT INCLUDE MOLD PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.

5. DIMENSION B DOES NOT INCLUDE MOLD PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION.

MILLIMETERS

DIM MIN MAX

A 1.35 1.75

A1 0.10 0.25

B 0.35 0.49 C 0.18 0.25 D 4.80 5.00 E

3.80 4.00

1.27 BSCe

H 5.80 6.20 h

0.25 0.50

L 0.40 1.25

0 7

q

__

8

MOTOROLA ANALOG IC DEVICE DATA

LF441C LF442C LF444C

OUTLINE DIMENSIONS

N SUFFIX

PLASTIC PACKAGE

CASE 646–06

ISSUE L

14 8

B

17

A F

N

SEATING

HG D

PLANE

C

K

L

J

M

NOTES:

1. LEADS WITHIN 0.13 (0.005) RADIUS OF TRUE POSITION AT SEATING PLANE AT MAXIMUM MATERIAL CONDITION.

2. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL.

3. DIMENSION B DOES NOT INCLUDE MOLD FLASH.

4. ROUNDED CORNERS OPTIONAL.

DIM MIN MAX MIN MAX

A 0.715 0.770 18.16 19.56 B 0.240 0.260 6.10 6.60 C 0.145 0.185 3.69 4.69 D 0.015 0.021 0.38 0.53 F 0.040 0.070 1.02 1.78 G 0.100 BSC 2.54 BSC H 0.052 0.095 1.32 2.41 J 0.008 0.015 0.20 0.38 K 0.115 0.135 2.92 3.43 L 0.300 BSC 7.62 BSC M 0 10 0 10

____

N 0.015 0.039 0.39 1.01

MILLIMETERSINCHES

–T–

SEATING PLANE

–A–

14 8

G

D 14 PL

0.25 (0.010) A

D SUFFIX

PLASTIC PACKAGE

CASE 751A–03

(SO–14)

ISSUE F

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)

–B–

71

M

7 PL

P

M

0.25 (0.010) B

X 45

C

R

K

S

B

T

S

M

_

M

F

J

PER SIDE.

5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION.

DIM MIN MAX MIN MAX

A 8.55 8.75 0.337 0.344 B 3.80 4.00 0.150 0.157 C 1.35 1.75 0.054 0.068 D 0.35 0.49 0.014 0.019

F 0.40 1.25 0.016 0.049

G 1.27 BSC 0.050 BSC

J 0.19 0.25 0.008 0.009 K 0.10 0.25 0.004 0.009 M 0 7 0 7

____

P 5.80 6.20 0.228 0.244 R 0.25 0.50 0.010 0.019

INCHESMILLIMETERS

MOTOROLA ANALOG IC DEVICE DATA

9

LF441C LF442C LF444C

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty , representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.

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10

◊

MOTOROLA ANALOG IC DEVICE DATA

LF441C/D

*LF441C/D*