lm321 single operational amplifier - sgmicrocn.sg-micro.com/uploads/soft/20200213/1581564257.pdf ·...

LM321 Single Operational Amplifier

JUNE 2019 – REV. A SG Micro Corp

www.sg-micro.com

GENERAL DESCRIPTION The LM321 is an independent, high-gain frequency- compensated operational amplifier designed to operate from a single supply or dual supplies over a wide range of voltages.

The LM321 is available in a Green SOT-23-5 package. It is specified over the 0℃ to +70℃ temperature range.

APPLICATIONS Blu-ray Players and Home Theaters Chemical and Gas Sensors DVD Recorders and Players Digital Multimeter: Bench and Systems Digital Multimeter: Handhelds Field Transmitter: Temperature Sensors Motor Control: AC Induction, Brushed DC, Brushless DC, High-Voltage, Low-Voltage, Permanent Magnet, and Stepper Motors Oscilloscopes TV: LCD and Digital Temperature Sensors or Controllers Using Modbus Weigh Scales

FEATURES • Wide Supply Ranges

Single Supply: 3V to 32V Dual Supplies: ±1.5V to ±16V

• Low Quiescent Current: 240μA (TYP) • Gain-Bandwidth Product: 1.1MHz • Input Common Mode Voltage Range Includes

Ground, Allowing Direct Sensing Near Ground • Low Input Offset Voltage: 5.8mV (MAX) • Low Input Offset Current: 20pA (TYP) • Low Input Bias Current: 10pA (TYP) • Differential Input Voltage Range Equal to Maximum-

Rated Supply Voltage: 32V • Open-Loop Differential Voltage Gain: 111dB (TYP) • Internal Frequency Compensation • 0℃ to +70℃ Operating Temperature Range • Available in a Green SOT-23-5 Package


2 JUNE 2019 SG Micro Corp

www.sg-micro.com

PACKAGE/ORDERING INFORMATION

MODEL PACKAGE DESCRIPTION

SPECIFIED TEMPERATURE

RANGE ORDERING NUMBER

PACKAGE MARKING

PACKING OPTION

LM321 SOT-23-5 0℃ to +70℃ LM321ZN5G/TR MX0XX Tape and Reel, 3000

MARKING INFORMATION NOTE: XX = Date Code.

Date Code - Year Date Code - Week

Serial Number

YYY X X

Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If you have additional comments or questions, please contact your SGMICRO representative directly.

ABSOLUTE MAXIMUM RATINGS Supply Voltage, VS

(1) ......................................... -0.3V to 32V Differential Input Voltage, VID

(2) .......................... -32V to 32V Input Voltage (Either Input) ................................ -0.3V to 32V Junction Temperature.................................................. +150℃ Storage Temperature Range ........................ -65℃ to +150℃ Lead Temperature (Soldering, 10s) ............................. +260℃ ESD Susceptibility HBM ............................................................................. 6000V CDM ............................................................................ 1000V RECOMMENDED OPERATING CONDITIONS Input Common Mode Voltage Range ......... -0.1V to VS - 1.5V Operating Temperature Range .......................... 0℃ to +70℃ NOTES: 1. All voltage values (except differential voltages and VS specified for the measurement of ISC) are with respect to the network GND. 2. Differential voltages are at +IN, with respect to -IN. OVERSTRESS CAUTION Stresses beyond those listed in Absolute Maximum Ratings may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect reliability. Functional operation of the device at any conditions beyond those indicated in the Recommended Operating Conditions section is not implied.

ESD SENSITIVITY CAUTION This integrated circuit can be damaged by ESD if you don’t pay attention to ESD protection. SGMICRO recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. DISCLAIMER SG Micro Corp reserves the right to make any change in circuit design, or specifications without prior notice.

PIN CONFIGURATION (TOP VIEW)

+VS

-IN 3 4

51

2-VS

+IN

OUT

+

_

SOT-23-5


3

JUNE 2019 SG Micro Corp www.sg-micro.com

ELECTRICAL CHARACTERISTICS (At TA = +25℃, VS = 3V to 32V, RL = 10kΩ connected to VS/2, -0.1V < VCM < VS - 1.5V, Full = 0℃ to +70℃, unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS TEMP MIN TYP MAX UNITS

Input Characteristics

Input Offset Voltage VOS +25℃ 1.2 5.8

mV Full 6.6

Input Bias Current IB VCM = VS/2 +25℃ 10 pA

Input Offset Current IOS VCM = VS/2 +25℃ 20 pA

Maximum Differential Input Voltage IVIDI Full VS V

Input Common Mode Voltage Range VCM Full -0.1 VS - 1.5 V

Common Mode Rejection Ratio CMRR -0.1V < VCM < VS - 1.5V +25℃ 82 118

dB Full 80

Open-Loop Voltage Gain AOL RL = 10kΩ to VS/2 +25℃ 92 111

dB Full 90

Output Characteristics

High-Level Output Voltage VOH RL = 10kΩ +25℃ 42 60

mV Full 70

Low-Level Output Voltage VOL RL = 10kΩ +25℃ 110 190

mV Full 210

Output Short-Circuit Current ISC +25℃ 12 18 mA

Power Supply

Operating Voltage Range VS Full 3 32 V

Quiescent Current IQ IOUT = 0 +25℃ 240 350

μA Full 410

Power Supply Rejection Ratio PSRR +25℃ 102 122

dB Full 100

Turn-On Time G = +1 +25℃ 42 μs

Dynamic Performance (CLOAD = 100pF)

Gain-Bandwidth Product GBP +25℃ 1.1 MHz

Slew Rate SR G = +1 +25℃ 0.35 V/μs

Overload Recovery Time ORT VIN × G > VS +25℃ 2.3 μs

Phase Margin +25℃ 60 ° Noise

Input Voltage Noise f = 0.1Hz to 10Hz +25℃ 8.7 μVP-P

Input Voltage Noise Density en f = 1kHz +25℃ 36 nV/ Hz


4


TYPICAL PERFORMANCE CHARACTERISTICS At TA = +25℃, VCM = VS/2, unless otherwise noted.

Positive Output Voltage Swing vs. Load Current Negative Output Voltage Swing vs. Load Current

Positive Output Swing vs. Load Current Negative Output Swing vs. Load Current

Input Bias Current vs. Input Common Mode Voltage Input Offset Voltage vs. Input Common Mode Voltage

0

0.5

1

1.5

2

2.5

3

3.5

0 10 20 30 40 50 60

Posi

tive

Out

put V

olta

ge S

win

g (V

)

ISOURCE (mA)

TA = -40℃

TA = +125℃

VS = 3V

TA = +25℃

0

0.5

1

1.5

2

2.5

3

3.5

0 10 20 30 40 50 60

Neg

ativ

e O

utpu

t Vol

tage

Sw

ing

(V)

ISINK (mA)

VS = 3V

TA = -40℃

TA = +25℃

TA = +125℃

0

1

2

3

4

5

6

0 10 20 30 40 50 60

Posi

tive

Out

put V

olta

ge S

win

g (V

)

ISOURCE (mA)

TA = -40℃

TA = +125℃

VS = 32V

TA = +25℃

0

1

2

3

4

5

6

0 10 20 30 40 50 60

Neg

ativ

e O

utpu

t Vol

tage

Sw

ing

(V)

ISINK (mA)

TA = -40℃

TA = +125℃

VS = 32V

TA = +25℃

0

2

4

6

8

10

-5 0 5 10 15 20 25 30 35

Inpu

t Bia

s C

urre

nt (p

A)

Input Common Mode Voltage (V)

-0.45

-0.4

-0.35

-0.3

-0.25

-0.2

-5 0 5 10 15 20 25 30 35

Inpu

t Offs

et V

olta

ge (m

V)

Input Common Mode Voltage (V)


5


TYPICAL PERFORMANCE CHARACTERISTICS (continued) At TA = +25℃, VCM = VS/2, unless otherwise noted.

Quiescent Current vs. Supply Voltage Quiescent Current vs. Temperature

Input Offset Current vs. Temperature Input Bias Current vs. Temperature

CMRR vs. Temperature PSRR vs. Temperature

200

210

220

230

240

250

3 8 13 18 23 28 33

Qui

esce

nt C

urre

nt (μ

A)

Supply Voltage (V)

0

50

100

150

200

250

300

350

-50 -25 0 25 50 75 100 125

Qui

esce

nt C

urre

nt (μ

A)

Temperature (℃)

VS = 5V

VS = 32V

VS = 3V

-400

-300

-200

-100

0

100

-50 -25 0 25 50 75 100 125

Inpu

t Offs

et C

urre

nt (p

A)

Temperature (℃)

VS = 32V

VS = 5V

VS = 3V

-800

-600

-400

-200

0

200

-50 -25 0 25 50 75 100 125

Inpu

t Bia

s C

urre

nt (p

A)

Temperature (℃)

VS = 32V

VS = 5V

VS = 3V

0

30

60

90

120

150

-50 -25 0 25 50 75 100 125

CM

RR

(dB)

Temperature (℃)

VS = 32V VS = 5V VS = 3V

0

30

60

90

120

150

180

-50 -25 0 25 50 75 100 125

PSR

R (d

B)

Temperature (℃)


6



Output Short-Circuit Current (ISOURCE) vs. Temperature Output Short-Circuit Current (ISINK) vs. Temperature

Gain-Bandwidth Product vs. Temperature Gain-Bandwidth Product vs. Temperature

CMRR vs. Frequency PSRR vs. Frequency

0

10

20

30

40

50

60

-50 -25 0 25 50 75 100 125

I SO

UR

CE

(mA)

Temperature (℃)

VS = 5V

VS = 32V

VS = 3V

-60

-50

-40

-30

-20

-10

0

-50 -25 0 25 50 75 100 125

I SIN

K (m

A)

Temperature (℃)

VS = 32V

VS = 3V VS = 5V

0.8

0.9

1

1.1

1.2

1.3

1.4

-50 -25 0 25 50 75 100 125

Gai

n-Ba

ndw

idth

Pro

duct

(MH

z)

Temperature (℃)

VS = 3V

1.1

1.2

1.3

1.4

1.5

1.6

1.7

-50 -25 0 25 50 75 100 125

Gai

n-Ba

ndw

idth

Pro

duct

(MH

z)

Temperature (℃)

VS = 32V

-150

-120

-90

-60

-30

0

0.1 1 10 100 1000 10000 100000

CM

RR

(dB)

Frequency (kHz)

VS = 3V

VS = 32V

VS = 5V

-150

-120

-90

-60

-30

0

0.01 0.1 1 10 100 1000 10000100000

PSR

R (d

B)

Frequency (kHz)

— VS = 3V, +PSRR — VS = 3V, -PSRR — VS = 5V, +PSRR — VS = 5V, -PSRR — VS = 32V, +PSRR — VS = 32V, -PSRR


7



Channel Separation vs. Frequency Channel Separation vs. Frequency

THD+N vs. Frequency THD+N vs. Frequency

+IN EMIRR vs. Frequency +IN EMIRR vs. Frequency

-120

-110

-100

-90

-80

-70

-60

0.1 1 10 100 1000 10000

Cha

nnel

Sep

arat

ion

(dB)

Frequency (kHz)

Channel B to A

Channel A to B

VS = 3V

-120

-110

-100

-90

-80

-70

-60

0.1 1 10 100 1000 10000

Cha

nnel

Sep

arat

ion

(dB)

Frequency (kHz)

VS = 32V

Channel A to B

Channel B to A

0

0.002

0.004

0.006

0.008

0.01

10 100 1000 10000 100000

THD

+N (%

)

Frequency (Hz)

VS = 3V, G = +1, VOUT = 1VP-P, RL = 2kΩ VS = 3V, G = +1, VOUT = 1VP-P, RL = 2kΩ

0.0004

0.0008

0.0012

0.0016

0.002

0.0024

10 100 1000 10000 100000

THD

+N (%

)

Frequency (Hz)

VS = 3V, G = +1, VOUT = 1VP-P, RL = 2kΩ VS = 32V, G = +1, VOUT = 1VP-P, RL = 2kΩ

0

20

40

60

80

100

10 100 1000 10000

+IN

EM

IRR

(dB)

Frequency (MHz)

VS = 3V, PRF = -10dBm

0

20

40

60

80

100

120

10 100 1000 10000

+IN

EM

IRR

(dB)

Frequency (MHz)

VS = 32V, PRF = -10dBm


8



Input Voltage Noise Density vs. Frequency Input Voltage Noise Density vs. Frequency

Input Voltage Noise Density vs. Frequency Open-Loop Gain and Phase vs. Frequency

Slew Rate (up) Slew Rate (down)

1

10

100

1000

10 100 1000 10000

Inpu

t Vol

tage

Noi

se D

ensi

ty (n

V/√H

z)

Frequency (Hz)

VS = 3V

1

10

100

1000

10 100 1000 10000

Inpu

t Vol

tage

Noi

se D

ensi

ty (n

V/√H

z)

Frequency (Hz)

VS = 5V

1

10

100

1000

10 100 1000 10000

Inpu

t Vol

tage

Noi

se D

ensi

ty (n

V/√H

z)

Frequency (Hz)

VS = 32V

-180

-150

-120

-90

-60

-30

0

-20

0

20

40

60

80

100

0.01 0.1 1 10 100 1000 10000100000

Phas

e (d

egre

e)

Ope

n-Lo

op G

ain

(dB)

Frequency (kHz)

Open-Loop Gain

Phase

VS = 32V

0.7

0.9

1.1

1.3

1.5

1.7

1.9

2.1

2.3

Volta

ge (V

)

Time (2µs/div)

VS = 3V, VOUT = 1VP-P, f = 1kHz, G = +1

0.7

0.9

1.1

1.3

1.5

1.7

1.9

2.1

2.3

Volta

ge (V

)

Time (2µs/div)



9





Positive Overload Recovery Time Negative Overload Recovery Time

1

1.5

2

2.5

3

3.5

4

Volta

ge (V

)

Time (5µs/div)


1

1.5

2

2.5

3

3.5

4

Volta

ge (V

)

Time (5µs/div)


14.5

15

15.5

16

16.5

17

17.5

Volta

ge (V

)

Time (5µs/div)


14.5

15

15.5

16

16.5

17

17.5

Volta

ge (V

)

Time (5µs/div)


Time (5μs/div)

VS= 3V, G = -10, f = 1kHz

0V

1.5V

VIN

VOUT

200mV/div

500mV/div

Time (5μs/div)

VS = 3V, G = -10, f = 1kHz

0V

0V

VIN

VOUT

200mV/div

500mV/div


10





Large-Signal Step Response Small-Signal Step Response

Time (5μs/div)

VS = 5V, G = -10, f = 1kHz

0V

2.5V

VIN

VOUT

200mV/div

1V/div Time (5μs/div)

VS = 5V, G = -10, f = 1kHz

0V

0V

VIN

VOUT

200mV/div

1V/div

Time (10μs/div)

VS = 32V, G = -10, f = 1kHz

0V

16V

VIN

VOUT

2V/div 5V/div

Time (10μs/div)

VS = 32V, G = -10, f = 1kHz

0V

0V

VIN

VOUT

2V/div 5V/div

Out

put V

olta

ge (2

50m

V/di

v)

Time (5μs/div)

VS = 3V, G = +1, f = 20kHz, VOUT = 1VP-P, RL = 10kΩ, CL = 100pF

Out

put V

olta

ge (5

0mV/

div)

Time (5μs/div)

VS = 3V, G = +1, f = 20kHz, VOUT = 0.1VP-P, RL = 10kΩ, CL = 100pF


11





Turn-On Time Turn-On Time

Out

put V

olta

ge (5

00m

V/di

v)

Time (5μs/div)


Out

put V

olta

ge (5

0mV/

div)

Time (5μs/div)


Out

put V

olta

ge (5

00m

V/di

v)

Time (5μs/div)


Out

put V

olta

ge (5

0mV/

div)

Time (5μs/div)


Time (20μs/div)

VS = 3V, VIN = 0.1V, G = +1, RL =10kΩ, CL = 100pF

0V

0V

VS

VOUT

1V/div 200m

V/div

Time (20μs/div)


0V

0V

VS

VOUT

2V/div 500m

V/div


12



Turn-On Time 0.1Hz to 10Hz Input Voltage Noise

0.1Hz to 10Hz Input Voltage Noise 0.1Hz to 10Hz Input Voltage Noise

Offset Voltage Production Distribution Offset Voltage Production Distribution

Time (20μs/div)


0V

0V

VS

VOUT

10V/div 1V/div

Noi

se (2

μV/d

iv)

Time (2s/div)

VS = 3V

Noi

se (2

μV/d

iv)

Time (2s/div)

VS = 5V

Noi

se (2

μV/d

iv)

Time (2s/div)

VS = 32V

0

5

10

15

20

-3-2

.7-2

.4-2

.1-1

.8-1

.5-1

.2-0

.9-0

.6-0

.3 00.

30.

60.

91.

21.

51.

82.

12.

42.

7 3

Perc

enta

ge o

f Am

plifi

ers

(%)

Offset Voltage (mV)

34200 Samples 1 Production Lot

VS = 3V

0

5

10

15

20

-3-2

.7-2

.4-2

.1-1

.8-1

.5-1

.2-0

.9-0

.6-0

.3 00.

30.

60.

91.

21.

51.

82.

12.

42.

7 3

Perc

enta

ge o

f Am

plifi

ers

(%)

Offset Voltage (mV)


VS = 5V


13



Offset Voltage Production Distribution Offset Voltage Drift Distribution

Offset Voltage Drift Distribution Offset Voltage Drift Distribution

0

5

10

15

20

-3-2

.7-2

.4-2

.1-1

.8-1

.5-1

.2-0

.9-0

.6-0

.3 00.

30.

60.

91.

21.

51.

82.

12.

42.

7 3

Perc

enta

ge o

f Am

plifi

ers

(%)

Offset Voltage (mV)


VS = 32V

0

10

20

30

40

0 1 2 3 4 5 6 7 8 9 10 11 12

Perc

enta

ge o

f Am

plifi

ers

(%)

Offset Voltage Drift (μV/℃)

VS = 3V, -40℃ ≤ TA ≤ +125℃

0

10

20

30

40

0 1 2 3 4 5 6 7 8 9 10 11 12

Perc

enta

ge o

f Am

plifi

ers

(%)


VS = 5V, -40℃ ≤ TA ≤ +125℃

0

10

20

30

40

0 1 2 3 4 5 6 7 8 9 10 11 12

Perc

enta

ge o

f Am

plifi

ers

(%)


VS = 32V, -40℃ ≤ TA ≤ +125℃


14


DETAILED DESCRIPTION The LM321 is an independent, high-gain frequency- compensated operational amplifiers designed to operate from a single supply over a wide range of voltages. Operation from dual supplies is also possible if the difference between the two supplies is 3V to 32V, and VS is at least 1.5V more positive than the input common mode voltage.

Applications include transducer amplifiers, DC amplification blocks, and all the conventional operational amplifier circuits that now can be implemented more easily in single-supply-voltage systems. For example, the device can be operated directly from the standard 5V supply used in digital systems and can easily provide the required interface electronics without additional ±5V supplies.

Unity-Gain Bandwidth The unity-gain bandwidth is the frequency up to which an amplifier with a unity gain may be operated without greatly distorting the signal. The device has a 1.1MHz unity-gain bandwidth.

Slew Rate The slew rate is the rate at which an operational amplifier can change its output when there is a change on the input. The device has a 0.35V/μs slew rate.

Input Common Mode Voltage Range The valid common mode voltage range is from device ground to VS - 1.5V. Inputs may exceed VS up to the maximum VS without device damage. At least one input must be in the valid input common mode voltage range for output to be correct phase. If both inputs exceed valid range then output phase is undefined. If either input is less than -0.3V then input current should be limited to 1mA and output phase is undefined.

Device Functional Modes The device is powered on when the supply is connected. This device can be operated as a single-supply operational amplifier or dual-supply amplifier depending on the application.

APPLICATION INFORMATION The LM321 operational amplifier is useful in a wide range of signal conditioning applications. Inputs can be powered before VS for flexibility in multiple supply circuits.

Typical Application A typical application for an operational amplifier is an inverting amplifier. This amplifier takes a positive voltage on the input and makes it a negative voltage of the same magnitude. In the same manner, it also makes negative voltages positive.

Figure 1. Application Schematic

The supply voltage must be chosen such that it is larger than the input voltage range and output range. For instance, this application will scale a signal of ±0.5V to ±1.8V. Setting the supply at ±12V is sufficient to accommodate this application.

Determine the gain required by the inverting amplifier using Equation 1 and Equation 2:

OUTV

IN

VA = V

(1)

V1.8A = = -3.6-0.5

(2)

Once the desired gain is determined, choose a value for RI or RF. Choosing a value in the kΩ range is desirable because the amplifier circuit will use currents in the milliamp range. This ensures the part will not draw too much current. This example will choose 10kΩ for RI which means 36kΩ will be used for RF. This was determined by Equation 3.

FV

I

RA = -R

(3)

RF

RI

VIN

VOUT

VSUP+

VSUP-

+

_


15


REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Original (JUNE 2019) to REV.A Page

Changed from product preview to production data ............................................................................................................................................. All

PACKAGE INFORMATION

TX00033.000 SG Micro Corp www.sg-micro.com

PACKAGE OUTLINE DIMENSIONS SOT-23-5

Symbol Dimensions

In Millimeters Dimensions

In Inches MIN MAX MIN MAX

A 1.050 1.250 0.041 0.049 A1 0.000 0.100 0.000 0.004 A2 1.050 1.150 0.041 0.045 b 0.300 0.500 0.012 0.020 c 0.100 0.200 0.004 0.008 D 2.820 3.020 0.111 0.119 E 1.500 1.700 0.059 0.067

E1 2.650 2.950 0.104 0.116 e 0.950 BSC 0.037 BSC

e1 1.900 BSC 0.075 BSC L 0.300 0.600 0.012 0.024 θ 0° 8° 0° 8°

EE1

e

e1

b

D

A1A2

A

c

L

θ0.2

RECOMMENDED LAND PATTERN (Unit: mm)

1.90

2.59

0.99

0.69 0.95

PACKAGE INFORMATION

TX10000.000 SG Micro Corp

www.sg-micro.com

TAPE AND REEL INFORMATION NOTE: The picture is only for reference. Please make the object as the standard.

KEY PARAMETER LIST OF TAPE AND REEL

Package Type Reel Diameter

Reel Width W1

(mm) A0

(mm) B0

(mm) K0

(mm) P0

(mm) P1

(mm) P2

(mm) W

(mm) Pin1

Quadrant

DD0001 SOT-23-5 7″ 9.5 3.20 3.20 1.40 4.0 4.0 2.0 8.0 Q3

Reel Width (W1)

Reel Diameter

REEL DIMENSIONS

TAPE DIMENSIONS

DIRECTION OF FEED

P2 P0

W

P1 A0 K0

B0Q1 Q2

Q4Q3 Q3 Q4

Q2Q1

Q3 Q4

Q2Q1

PACKAGE INFORMATION

TX20000.000 SG Micro Corp

www.sg-micro.com

CARTON BOX DIMENSIONS NOTE: The picture is only for reference. Please make the object as the standard.

KEY PARAMETER LIST OF CARTON BOX

Reel Type Length (mm)

Width (mm)

Height (mm) Pizza/Carton

DD0002

7″ (Option) 368 227 224 8

7″ 442 410 224 18

lm321 single operational amplifier - sgmicrocn.sg-micro.com/uploads/soft/20200213/1581564257.pdf ·...

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