Texas Instruments TL081ACD, TL081ACP, TL081BCD, TL081BCP, TL081CD Schematic [ru]

PRODUCT	SAMPLE &	TECHNICAL	TOOLS &	SUPPORT &
FOLDER	BUY	DOCUMENTS	SOFTWARE	COMMUNITY

TL081, TL081A, TL081B, TL082, TL082A

TL082B, TL084, TL084A, TL084B

SLOS081I –FEBRUARY 1977 –REVISED MAY 2015

TL08xx JFET-Input Operational Amplifiers

1 Features

•Low Power Consumption: 1.4 mA/ch Typical

•Wide Common-Mode and Differential Voltage Ranges

•Low Input Bias Current: 30 pA Typical

•Low Input Offset Current: 5 pA Typical

•Output Short-Circuit Protection

•Low Total Harmonic Distortion: 0.003% Typical

•High Input Impedance: JFET Input Stage

•Latch-Up-Free Operation

•High Slew Rate: 13 V/μs Typical

•Common-Mode Input Voltage Range Includes VCC+

2 Applications

•Tablets

•White goods

•Personal electronics

3 Description

The TL08xx JFET-input operational amplifier family is designed to offer a wider selection than any previously developed operational amplifier family. Each of these JFET-input operational amplifiers incorporates well-matched, high-voltage JFET and bipolar transistors in a monolithic integrated circuit. The devices feature high slew rates, low input bias and offset currents, and low offset-voltage temperature coefficient.

Device Information(1)

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TL084xD	SOIC (14)	8.65 mm × 3.91 mm
TL08xxFK	LCCC (20)	8.89 mm × 8.89 mm
TL084xJ	CDIP (14)	19.56 mm × 6.92 mm
TL084xN	PDIP (14)	19.3 mm × 6.35 mm
TL084xNS	SO (14)	10.3 mm × 5.3 mm
TL084xPW	TSSOP (14)	5.0 mm × 4.4 mm

(1)For all available packages, see the orderable addendum at the end of the data sheet.

•Computers

Schematic Symbol

	TL081						TL082 (EACH AMPLIFIER)
							TL084 (EACH AMPLIFIER)
OFFSET N1
		+
IN +					OUT	IN +			+		OUT
		−
IN −						IN −			−
OFFSET N2

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.

TL081, TL081A, TL081B, TL082, TL082A

TL082B, TL084, TL084A, TL084B

SLOS081I –FEBRUARY 1977 –REVISED MAY 2015

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Table of Contents

1	Features ..................................................................		1
2	Applications ...........................................................		1
3	Description .............................................................		1
4	Revision History.....................................................		2
5	Pin Configuration and Functions .........................		3
6	Specifications.........................................................		5
	6.1	Absolute Maximum Ratings .....................................	5
	6.2	ESD Ratings..............................................................	5
	6.3	Recommended Operating Conditions.......................	5
	6.4	Thermal Information ..................................................	6
	6.5	Electrical Characteristics for TL08xC, TL08xxC, and
		TL08xI ........................................................................	6
	6.6	Electrical Characteristics for TL08xM and TL084x ...	7
	6.7	Operating Characteristics..........................................	7
	6.8	Dissipation Rating Table ...........................................	8
	6.9	Typical Characteristics ..............................................	9
7	Parameter Measurement Information ................		13
8	Detailed Description ............................................		14
	8.1	Overview .................................................................	14

	8.2	Functional Block Diagram .......................................	14
	8.3	Feature Description.................................................	14
	8.4	Device Functional Modes........................................	14
9	Applications and Implementation ......................		15
	9.1	Application Information............................................	15
	9.2	Typical Applications ...............................................	15
	9.3	System Examples ...................................................	16
10	Power Supply Recommendations .....................		18
11	Layout...................................................................		18
	11.1	Layout Guidelines .................................................	18
	11.2	Layout Examples...................................................	19
12 Device and Documentation Support .................			20
	12.1	Documentation Support ........................................	20
	12.2	Related Links ........................................................	20
	12.3	Community Resources..........................................	20
	12.4	Trademarks ...........................................................	20
	12.5	Electrostatic Discharge Caution............................	20
	12.6	Glossary ................................................................	20
13 Mechanical, Packaging, and Orderable
	Information ...........................................................		20

4 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision H (January 2014) to Revision I

Page

•Added Pin Configuration and Functions section, Storage Conditions table, ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable

Information section ................................................................................................................................................................	1
• Added Applications.................................................................................................................................................................	1
• Moved Typical Characteristics into Specifications section. ...................................................................................................	9
Changes from Revision G (September 2004) to Revision H	Page
• Updated document to new TI data sheet format - no specification changes. ........................................................................	1
• Deleted Ordering Information table. .......................................................................................................................................	1

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SLOS081I –FEBRUARY 1977–REVISED MAY 2015

5 Pin Configuration and Functions

	TL082 FK Package						TL081 and TL081x D, P, and PS Package
	20-Pin LCCC
		Top View					8-Pin SOIC, PDIP, and SO
								Top View
	NC 1OUT			CC+
			NC		NC		OFFSET N1	1	8	NC
				V
							IN −	2	7	VCC +
NC	3	2	1	20 19		NC	IN +	3	6	OUT
	4				18
1IN −	5				17	2OUT	VCC −	4	5	OFFSET N2
NC	6				16	NC
1IN +	7				15	2IN −	TL082 and TL082x D, JG, P, PS and PW Package
NC	8				14	NC
	9 10 11 12 13						8-Pin SOIC, CDIP, PDIP, SO, and TSSOP
	NC		NC	2IN+	NC			Top View
		V
		−
		CC					1OUT	1	8	VCC +
							1IN −	2	7	2OUT
							1IN +	3	6	2IN −
	TL084 FK Package						VCC −	4	5	2IN +
	20-Pin LCCC
	1IN−	Top View			4IN−
		1OUT	NC	4OUT			TL084 and TL084x D, J, N, NS and PW Package
							14-Pin SOIC, CDIP, PDIP, SO, and TSSOP
								Top View
1IN +	3	2	1	20 19		4IN +
	4				18		1OUT	1	14	4OUT
NC	5				17	NC	1IN −	2	13	4IN −
VCC +	6				16	VCC −	1IN +	3	12	4IN +
NC	7				15	NC	VCC +	4	11	VCC −
2IN +	8				14	3IN +	2IN +	5	10	3IN +
	9 10 11 12 13
							2IN −			3IN −
	2IN−	2OUT	NC	3OUT	3IN−			6	9
							2OUT	7	8	3OUT

Pin Functions

			PIN
		TL081	TL082			TL084
NAME			SOIC,			SOIC,			I/O	DESCRIPTION
		SOIC, PDIP,			LCCC	CDIP,		LCCC
			CDIP, PDIP,
		SO	SO, TSSOP			PDIP, SO,
						TSSOP
1IN–		—	2		5	2		3	I	Negative input
1IN+		—	3		7	3		4	I	Positive input
1OUT		—	1		2	1		2	O	Output
2IN–		—	6		15	6		9	I	Negative input
2IN+		—	5		12	5		8	I	Positive input
2OUT		—	7		17	7		10	O	Output
3IN–		—	—		—	9		13	I	Negative input
3IN+		—	—		—	10		14	I	Positive input
3OUT		—	—		—	8		12	O	Output
4IN–		—	—		—	13		19	I	Negative input
4IN+		—	—		—	12		18	I	Positive input
4OUT		—	—		—	14		20	O	Output
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Pin Functions (continued)

			PIN
		TL081	TL082			TL084
NAME			SOIC,			SOIC,			I/O	DESCRIPTION
		SOIC, PDIP,			LCCC	CDIP,		LCCC
			CDIP, PDIP,
		SO	SO, TSSOP			PDIP, SO,
						TSSOP
IN–		2	—		—	—		—	I	Negative input
IN+		3	—		—	—		—	I	Positive input
					1			1
					3
					4			5
					6
					8			7
NC		8	—		9	—			—	Do not connect
					11			11
					13
					14			15
					16
					18			17
OFFSET		1	—		—	—		—	—	Input offset adjustment
N1
OFFSET		5	—		—	—		—	—	Input offset adjustment
N2
OUT		6	—		—	—		—	O	Output
VCC–		4	4		10	11		16	—	Power supply
VCC+		7	8		20	4		6	—	Power supply

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SLOS081I –FEBRUARY 1977–REVISED MAY 2015

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)

				MIN	MAX	UNIT
VCC+	Supply voltage(2)				18	V
VCC–					–18
VID	Differential input voltage(3)				±30	V
VI	Input voltage(2)(4)				±15	V
	Duration of output short circuit(5)				Unlimited
	Continuous total power dissipation			See Dissipation Rating Table
			TL08_C
			TL08_AC	0	70
			TL08_BC
TA	Operating free-air temperature		TL08_I	–40	85	°C
			TL084Q	–40	125
			TL08_M	–55	125
	Operating virtual junction temperature				150	°C
TC	Case temperature for 60 seconds	FK package	TL08_M		260	°C
	Lead temperature 1,6 mm (1/16	J or JG package	TL08_M		300	°C
	inch) from case for 10 seconds
Tstg	Storage temperature			–65	150	°C

(1)Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)All voltage values, except differential voltages, are with respect to the midpoint between VCC+ and VCC−.

(3)Differential voltages are at IN+, with respect to IN−.

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

(5)The output may be shorted to ground or to either supply. Temperature and/or supply voltages must be limited to ensure that the dissipation rating is not exceeded.

6.2	ESD Ratings
			VALUE	UNIT
		Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1)	1000
V(ESD)	Electrostatic discharge	Charged-device model (CDM), per JEDEC specification JESD22-	1500	V
		C101(2)

(1)JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

(2)JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)

				MIN	MAX	UNIT
	VCC+	Supply voltage		5	15	V
	VCC–	Supply voltage		–5	–15	V
	VCM	Common-mode voltage		VCC– + 4	VCC+ – 4	V
			TL08xM	–55	125
	TA	Ambient temperature	TL08xQ	–40	125	°C
			TL08xI	–40	85
			TL08xC	0	70

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6.4	Thermal Information
					TL08xx
	THERMAL METRIC(1)	D (SOIC)		N (PDIP)	NS (SO)		P (PDIP)	PS (SO)	PW (TSSOP)		UNIT
		8 PINS	14	14 PINS	14 PINS		{PIN	{PIN	8 PINS	14
			PINS				COUNT}	COUNT}		PINS
							PINS	PINS
RθJA	Junction-to-ambient	97	86	76	80		85	95	149	113	°C/W
	thermal resistance(2)(3)

(1)For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.

(2)Maximum power dissipation is a function of TJ(max), RθJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA) / RθJA. Operating at the absolute maximum TJ of 150°C can affect reliability.

(3)The package thermal impedance is calculated in accordance with JESD 51-7.

6.5 Electrical Characteristics for TL08xC, TL08xxC, and TL08xI

VCC± = ±15 V (unless otherwise noted)

TEST

TL081C, TL082C,

TL081AC, TL082AC,

TL081BC, TL082BC,

TL081I, TL082I,

PARAMETER

TA(1)

TL084C

TL084AC

TL084BC

TL084I

UNIT

CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX

MIN

TYP

MAX

MIN

TYP

MAX

Input offset

VO = 0,

25°C

3

15

3

6

2

3

3

6

VIO

Full

mV

voltage

RS = 50 Ω

20

7.5

5

9

range

Temperature

αVIO

coefficient of

VO = 0,

Full

18

18

18

18

μV/°C

input

RS = 50 Ω

range

offset

voltage

Input offset

25°C

5

200

5

100

5

100

5

100

pA

IIO

VO = 0

Full

current(2)

2

2

2

10

nA

range

Input bias

25°C

30

400

30

200

30

200

30

200

pA

IIB

VO = 0

Full

current(2)

10

7

7

20

nA

range

Common-

–12

–12

–12

–12

mode

VICR

25°C

±11

to

±11

to

±11

to

±11

to

V

input voltage

15

15

15

15

range

Maximum

RL = 10 kΩ

25°C

±12

±13.5

±12

±13.5

±12

±13.5

±12

±13.5

peak

RL ≥ 10 kΩ

±12

±12

±12

±12

VOM

output

Full

V

voltage

RL ≥ 2 kΩ

range

±10

±12

±10

±12

±10

±12

±10

±12

swing

Large-signal

25°C

25

200

50

200

50

200

50

200

AVD

differential

VO = ±10 V,

V/mV

Full

voltage

RL ≥ 2 kΩ

15

15

25

25

amplification

range

B1

Unity-gain

25°C

3

3

3

3

MHz

bandwidth

ri

Input

25°C

1012

1012

1012

1012

Ω

resistance

Common-

VIC = VICRmin,

mode

CMRR

VO = 0,

25°C

70

86

75

86

75

86

75

86

dB

rejection

RS = 50 Ω

ratio

Supply-

VCC = ±15 V to

voltage

±9 V,

kSVR

rejection

25°C

70

86

80

86

80

86

80

86

dB

VO = 0,

ratio

RS = 50 Ω

( VCC±/ VIO)

(1)All characteristics are measured under open-loop conditions with zero common-mode voltage, unless otherwise specified. Full range for TA is 0°C to 70°C for TL08_C, TL08_AC, TL08_BC and –40°C to 85°C for TL08_I.

(2)Input bias currents of an FET-input operational amplifier are normal junction reverse currents, which are temperature sensitive, as shown in Figure 13. Pulse techniques must be used that maintain the junction temperature as close to the ambient temperature as possible.

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SLOS081I –FEBRUARY 1977–REVISED MAY 2015

Electrical Characteristics for TL08xC, TL08xxC, and TL08xI (continued)

VCC± = ±15 V (unless otherwise noted)

TEST

TL081C, TL082C,

TL081AC, TL082AC,

TL081BC, TL082BC,

TL081I, TL082I,

PARAMETER

TA(1)

TL084C

TL084AC

TL084BC

TL084I

UNIT

CONDITIONS

MIN

TYP

MAX

MIN TYP

MAX

MIN TYP

MAX

MIN TYP

MAX

Supply

ICC

current

VO = 0,

25°C

1.4

2.8

1.4

2.8

1.4

2.8

1.4

2.8

mA

(each

No load

amplifier)

Crosstalk

VO1/VO2 attenuation

AVD = 100

25°C

120

120

120

120

dB

6.6 Electrical Characteristics for TL08xM and TL084x

VCC± = ±15 V (unless otherwise noted)

	PARAMETER	TEST CONDITIONS(1)	TA	TL081M, TL082M			TL084Q, TL084M			UNIT
				MIN	TYP	MAX	MIN	TYP	MAX
VIO	Input offset voltage	VO = 0, RS = 50 Ω	25°C		3	6		3	9	mV
			Full range			9			15
	Temperature
αVIO	coefficient of input	VO = 0, RS = 50 Ω	Full range		18			18		μV/°C
	offset voltage
IIO	Input offset current(2)	VO = 0	25°C		5	100		5	100	pA
			125°C			20			20	nA
IIB	Input bias current(2)	VO = 0	25°C		30	200		30	200	pA
			125°C			50			50	nA
	Common-mode				–12			–12
VICR			25°C	±11	to		±11	to		V
	input voltage range
					15			15
	Maximum peak	RL = 10 kΩ	25°C	±12	±13.5		±12	±13.5
VOM		RL ≥ 10 kΩ		±12			±12			V
	output voltage swing		Full range
		RL ≥ 2 kΩ		±10	±12		±10	±12
AVD	Large-signal differential	VO = ±10 V, RL ≥ 2 kΩ	25°C	25	200		25	200		V/mV
	voltage amplification		Full range	15			15
B1	Unity-gain bandwidth		25°C		3			3		MHz
ri	Input resistance		25°C		1012			1012		Ω
CMRR	Common-mode	VIC = VICRmin,	25°C	80	86		80	86		dB
	rejection ratio	VO = 0, RS = 50 Ω
	Supply-voltage	VCC = ±15 V to ±9 V,
kSVR	rejection ratio		25°C	80	86		80	86		dB
		VO = 0, RS = 50 Ω
	( VCC±/ VIO)
ICC	Supply current	VO = 0, No load	25°C		1.4	2.8		1.4	2.8	mA
	(each amplifier)
VO1/VO2	Crosstalk attenuation	AVD = 100	25°C		120			120		dB

(1)All characteristics are measured under open-loop conditions, with zero common-mode input voltage, unless otherwise specified.

(2)Input bias currents of a FET-input operational amplifier are normal junction reverse currents, which are temperature sensitive, as shown in Figure 13. Pulse techniques must be used that maintain the junction temperatures as close to the ambient temperature as possible.

6.7 Operating Characteristics

VCC± = ±15 V, TA= 25°C (unless otherwise noted)

	PARAMETER	TEST CONDITIONS
		VI = 10 V, RL = 2 kΩ, CL = 100 pF,
		See Figure 19
SR	Slew rate at unity gain	VI = 10 V, RL = 2 kΩ, CL = 100 pF,
		TA = − 55°C to 125°C,
		See Figure 19

MIN TYP MAX UNIT

8(1) 13

V/μs

5(1)

(1)On products compliant to MIL-PRF-38535, this parameter is not production tested.

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Operating Characteristics (continued)

VCC± = ±15 V, TA= 25°C (unless otherwise noted)

	PARAMETER		TEST CONDITIONS		MIN	TYP	MAX	UNIT
tr	Rise-time	VI = 20 V, RL = 2 kΩ, CL = 100 pF,				0.05		μs
	overshoot factor	See Figure 19				20%
Vn	Equivalent input noise	RS = 20 Ω		f = 1 kHz		18		nV/√	Hz
	voltage			f = 10 Hz to 10 kHz		4		μV
	Equivalent input noise
In		RS = 20 Ω,		f = 1 kHz		0.01		pA/√Hz
	current
THD	Total harmonic distortion	VIrms = 6 V, AVD = 1, RS ≤ 1 kΩ, RL ≥ 2 kΩ,				0.003%
		f = 1 kHz,

6.8 Dissipation Rating Table

	PACKAGE	TA ≤ 25°C	DERATING	DERATE	TA = 70°C	TA = 85°C	TA = 125°C
		POWER RATING	FACTOR	ABOVE TA	POWER RATING	POWER RATING	POWER RATING
	D (14 pin)	680 mW	7.6 mW/°C	60°C	604 m/W	490 mW	186 mW
	FK	680 mW	11.0 mW/°C	88°C	680 m/W	680 mW	273 mW
	J	680 mW	11.0 mW/°C	88°C	680 m/W	680 mW	273 mW
	JG	680 mW	8.4 mW/°C	69°C	672 m/W	546 mW	210 mW

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SLOS081I –FEBRUARY 1977–REVISED MAY 2015

6.9 Typical Characteristics

Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices. The Figure numbers referenced in the following graphs are located in Parameter Measurement Information.

Table 1. Table of Graphs

				Figure
			versus Frequency	Figure 1, Figure 2, Figure 3
	VOM	Maximum peak output voltage	versus Free-air temperature	Figure 4
			versus Load resistance	Figure 5
			versus Supply voltage	Figure 6
		Large-signal differential voltage	versus Free-air temperature	Figure 7
	AVD	amplification	versus Load resistance	Figure 8
		Differential voltage amplification	versus Frequency with feed-forward	Figure 9
			compensation
	PD	Total power dissipation	versus Free-air temperature	Figure 10
	ICC	Supply current	versus Free-air temperature	Figure 11
			versus Supply voltage	Figure 12
	IIB	Input bias current	versus Free-air temperature	Figure 13
		Large-signal pulse response	versus Time	Figure 14
	VO	Output voltage	versus Elapsed time	Figure 15
	CMRR	Common-mode rejection ratio	versus Free-air temperature	Figure 16
	Vn	Equivalent input noise voltage	versus Frequency	Figure 17
	THD	Total harmonic distortion	versus Frequency	Figure 18

OM − MAXIMUM PEAK OUTPUT VOLTAGE − V VOM

±15
	VCC± = ±15 V			RL = 10 K!
				TA = 25°C
±12.5				SEE FIGURE 2
±10	VCC± = ±10 V
±7.5
±5	VCC± = ±5 V
±2.5
0
100	1 K	10 K	100 K	1 M	10 M
		F − FREQUENCY − HZ

Figure 1. Maximum Peak Output Voltage

vs

Frequency

	±15
−V					RL = 2 K!
	±12.5		VCC± = ±15 V		TA = 25°C
VOLTAGE					SEE FIGURE 2
OUTPUT	±10		VCC± = ±10 V
PEAK	±7.5
MAXIMUM	±5		VCC± = ±5 V
−
OMV
OM	±2.5
	0
	100	1 K	10 K	100 K	1 M	10 M
			F − FREQUENCY − HZ

Figure 2. Maximum Peak Output Voltage

vs

Frequency

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SLOS081I –FEBRUARY 1977 –REVISED MAY 2015

		±15
−V							VCC± = ±15 V
	±12.5		TA = 25°C				RL = 2 K!
VOLTAGE							SEE FIGURE 2
OUTPUT
		±10
PEAK						TA = −55°C
		±7.5
MAXIMUM−		±5	TA = 125°C
OMV
OM		±2.5
		0
		10 K	40 K	100 K		400 K	1 M	4 M		10 M
				F − FREQUENCY − HZ
		Figure 3. Maximum Peak Output Voltage
					vs
				Frequency
		±15
V			VCC± = ±15 V
−			TA = 25°C
VOLTAGE		±12.5	SEE FIGURE 2
OUTPUT		±10
PEAK		±7.5
MAXIMUM−		±5
OMV		±2.5
OM			8
		0	0.2	0.4	0.7	1	2	4	7	10
		0.1
				RL − LOAD RESISTANCE − K!
		Figure 5. Maximum Peak Output Voltage
					vs
				Load Resistance
		1000
DIFFERENTIALSIGNAL-LARGE	V/MV−AMPLIFICATION	400
		200
		100
		40
	VOLTAGE	20
AA		4	VCC± = ±15 V
−		10
VD
		2	VO = ±10 V
			RL = 2 K!

1
−75	−50	−25	0	25	50	75	100	125

TA − FREE-AIR TEMPERATURE − °C

Figure 7. Large-Signal Differential Voltage Amplification

vs

Free-Air Temperature

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		±15
	−V	RL = 10 K!
	VOLTAGE	±12.5
		RL = 2 K!
	OUTPUT
		±10
	PEAK	±7.5
	MAXIMUM−	±5
	OMV	±2.5
		VCC± = ±15 V
	OM
		SEE FIGURE 2

	0
	−75			−50		−25		0	25		50		75		100		125
						TA − FREE-AIR TEMPERATURE − °C
	Figure 4. Maximum Peak Output Voltage
									vs
						Free-Air Temperature
	±15
−V				RL = 10 K!
				TA = 25°C
VOLTAGE	±12.5
OUTPUT	±10
PEAK	±7.5
MAXIMUM−
	±5
OM
	±2.5
				8
OMV
	0
	0			2		4		6	8		10		12		14		16

|VCC±| − SUPPLY VOLTAGE − V

Figure 6. Maximum Peak Output Voltage

vs

Supply Voltage

		106
						VCC± = ±5 V TO ±15 V
						RL = 2 K"
– LARGE-SIGNALDIFFERENTIAL		105				TA = 25°C
	VOLTAGEAMPLIFICATION	104				DIFFERENTIAL			0°	PHASESHIFT
						VOLTAGE
		103				AMPLIFICATION			45°
		102							90°
VD				PHASE SHIFT
AA		101							135°
		1							180°
		1	10	100	1 K	10 K	100 K	1 M	10 M
				F − FREQUENCY − HZ

Figure 8. Large-Signal Differential Voltage Amplification and

Phase Shift

vs

Frequency

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	106
V/MV					VCC± =±15 V
	105				C2 = 3 PF
−					TA = 25°C
AMPLIFICATION
					SEE FIGURE 3
	104
VOLTAGE	103
DIFFERENTIAL	102
	10
−
VD
A	1
	100	1 K	10 K	100 K	1 M	10 M
	F − FREQUENCY WITH FEED-FORWARD COMPENSATION − HZ

Figure 9. Differential Voltage Amplification vs

Frequency with Feed-Forward Compensation

	2
MA							VCC± = ±15 V
	1.8						NO SIGNAL
−
							NO LOAD
PERAMPLIFIER	1.2
	1.6
	1.4
CURRENT	1
SUPPLY−	0.8
	0.6
ICC	0.4
±
CC	0.2
I
	0
	−75	−50	−25	0	25	50	75	100	125
			TA − FREE-AIR TEMPERATURE − °C

Figure 11. Supply Current per Amplifier vs

Free-Air Temperature

	100
		V CC± =±15 V
NA	10
CURRENT −
− INPUT BIAS	1
IB	0.1
I
	0.01
	− 50	− 25	0	25	50	75	100	125
			TA − FREE-AIR TEMPERATURE − °C

Figure 13. Input Bias Current

vs

Free-Air Temperature

		TL081, TL081A, TL081B, TL082, TL082A
			TL082B, TL084, TL084A, TL084B
		SLOS081I –FEBRUARY 1977–REVISED MAY 2015
	250
	225						VCC± =±15 V
							NO SIGNAL
							NO LOAD
−MW	200
	175
DISSIPATION							TL084, TL085
	150
	125
POWER	100					TL082, TL083
TOTAL	75
						TL081
−	50
D
P	25
	0
	− 75	− 50	−25	0	25	50	75	100	125
			TA − FREE-AIR TEMPERATURE °−C

Figure 10. Total Power Dissipation

vs

Free-Air Temperature

	2
MA	1.8		TA = 25°C
			NO SIGNAL
−
			NO LOAD
AMPLIFIER	1.6
PER	1.4
	1.2
CURRENT
	1
SUPPLY−	0.8
	0.6
ICC	0.4
±
CC	0.2
I
	0
	0		2		4		6		8		10		12		14		16

|VCC±| − SUPPLY VOLTAGE − V

Figure 12. Supply Current per Amplifier vs

Supply Voltage

	6					VCC± = ±15 V
V
						RL = 2 K!
−
VOLTAGES	4					CL = 100 PF
			OUTPUT			TA = 25°C
OUTPUT	2
INPUTAND	0
	−2
−
O				INPUT
V
AND	−4
I
V
	−6
	0	0.5	1	1.5	2	2.5	3	3.5
		T − TIME − µS

Figure 14. Voltage-Follower Large-Signal Pulse Response

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	28								89
								DB	VCC± =±15 V
	24								RL = 10 KΩ
								−	88
								-MODEREJECTIONRATIO
OUTPUTVOLTAGE−MV	20
	16								87
			VCC± =±15 V
	12		RL = 2 KΩ
			CL = 100 PF						86
			TA = 25°C
	8		SEE FIGURE 1
−								COMMON	85
O
V	4
								−	84
	0							CMRR
	− 4								83
	0	0.2	0.4	0.6	0.8	1.0	1.2		− 75	− 50 − 25	0	25	50	75	100	125
	T − ELAPSED TIME – µS													°
										TA − FREE-AIR TEMPERATURE −C

Figure 15. Output Voltage	Figure 16. Common-Mode Rejection Ratio
vs	vs
Elapsed Time	Free-Air Temperature

HZ

50

VCC± = ±15 V

1

VCC± = ±15 V

NV/HZ

%

0.4

RS = 20 !

V

= 6 V

AVD = 10

AVD

= 1

−

40

TA = 25°C

−

I(RMS)

NOISEINPUTVOLTAGE

DISTORTIONHARMONIC

TA = 25°C

20

0.1

30

EQUIVALENT−

TOTAL−THD

0.04

0.01

10

0.004

N

V

0

0.001

10

40

100

400 1 K

4 K 10 K

40 K 100 K

100

400

1 K

4 K

10 K

40 K 100 K

F − FREQUENCY − HZ

F − FREQUENCY − HZ

Figure 17. Equivalent Input Noise Voltage	Figure 18. Total Harmonic Distortion
vs	vs
Frequency	Frequency

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7 Parameter Measurement Information

−
	OUT
+
VI
CL = 100 PF	RL = 2 KΩ

TL081, TL081A, TL081B, TL082, TL082A TL082B, TL084, TL084A, TL084B

SLOS081I –FEBRUARY 1977–REVISED MAY 2015

	10 KΩ
	1 KΩ
VI	−
		OUT
	+	CL = 100 PF
	RL

Figure 19. Test Figure 1

Figure 20. Test Figure 2

100KΩ

C2

	C1	500 PF
IN −	−	N1
		OUT
	+

Figure 21. Test Figure 3

IN −

IN +

	TL081
−
	OUT
+	N2

N1

100 KΩ

1.5 KΩ

VCC −

Figure 22. Test Figure 4

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8 Detailed Description

8.1 Overview

The TL08xx JFET-input operational amplifier family is designed to offer a wider selection than any previously developed operational amplifier family. Each of these JFET-input operational amplifiers incorporates wellmatched, high-voltage JFET and bipolar transistors in a monolithic integrated circuit. The devices feature high slew rates, low input bias and offset currents, and low offset-voltage temperature coefficient. Offset adjustment and external compensation options are available within the TL08xx family.

The C-suffix devices are characterized for operation from 0°C to 70°C. The I-suffix devices are characterized for operation from −40°C to 85°C. The Q-suffix devices are characterized for operation from –40°C to +125°C. The M-suffix devices are characterized for operation over the full military temperature range of −55°C to +125°C.

8.2 Functional Block Diagram

VCC +

IN +

64Ω

IN −

OUT

128Ω

64Ω

C1

1080Ω	1080Ω
VCC −
OFFSET N1	OFFSET N2
	TL081 ONLY

8.3 Feature Description

8.3.1 Total Harmonic Distortion

Harmonic distortions to an audio signal are created by electronic components in a circuit. Total harmonic distortion (THD) is a measure of harmonic distortions accumulated by a signal in an audio system. These devices have a very low THD of 0.003% meaning that the TL08x devices will add little harmonic distortion when used in audio signal applications.

8.3.2 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. These devices have a 13-V/μs slew rate.

8.4 Device Functional Modes

These devices are 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.

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SLOS081I –FEBRUARY 1977–REVISED MAY 2015

9 Applications and Implementation

NOTE

Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality.

9.1 Application Information

The TL08x series of operational amplifiers can be used in countless applications. The few applications in this section show principles used in all applications of these parts.

9.2 Typical Applications

9.2.1 Inverting Amplifier Application

A typical application for an operational amplifier in 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.

RF

RI Vsup+

VOUT

+

VIN

Vsup-

Figure 23. Schematic for Inverting Amplifier Application

9.2.1.1 Design Requirements

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 ±0.5 V to ±1.8 V. Setting the supply at ±12 V is sufficient to accommodate this application.

9.2.1.2 Detailed Design Procedure

Determine the gain required by the inverting amplifier:

(1)

(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 10 kΩ for RI which means 36 kΩ will be used for RF. This was determined by Equation 3.

(3)

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Typical Applications (continued)

9.2.1.3 Application Curve

	2
					VIN
1.5
					VOUT
	1
0.5
VOLTS	0
-0.5
	-1
-1.5
	-2
	0	0.5	1	1.5	2
			TIME (MS)

Figure 24. Input and output voltages of the inverting amplifier

9.3 System Examples

9.3.1 General Applications

CF = 3.3 µF

RF = 100 KΩ

15 V

3.3 KΩ −

TL081 +

− 15 V

OUTPUT	INPUT

1 KΩ

3.3 KΩ

9.1 KΩ

1

F =

2π RF CF

Figure 25. 0.5-Hz Square-Wave Oscillator

		VCC +
		−
R1	R2	TL081
				OUTPUT
		+
C3		VCC −
R3		R1 = R2 = 2(R3) = 1.5 MΩ
C1	C2	C1 = C2 =	C3	= 110 PF
			2
		1		= 1 KHZ
		FO =
		2π R1 C1

Figure 26. High-Q Notch Filter

		VCC +			6 SIN ωT	1N4148
							− 15 V
	1 MΩ	−		18 PF			18 KΩ
						1 KΩ (SEE NOTE A)
		TL084	OUTPUT A			18 PF
	VCC +
		+			VCC +
				−		VCC+
					88.4 KΩ
	+			1/2
						−
				TL082
1 µF						1/2
	TL084			+			6 COS ωT
		VCC +	88.4 KΩ			TL082
INPUT	−				VCC −	+
				18 PF		VCC −	1 KΩ
		−
		TL084	OUTPUT B				15 V
100 KΩ	100 KΩ	+				1N4148	18 KΩ
					88.4 KΩ		(SEE NOTE A)
		VCC +
	100 KΩ
			A. These resistor values may be adjusted for a symmetrical output.
100 µF	100 KΩ	VCC +
		−
		TL084	OUTPUT C

		+
Figure 27. Audio-Distribution Amplifier							Figure 28. 100-kHz Quadrature Oscillator

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