Analog Devices OP2177ARM, OP2177AR, OP4177AR, OP1177AR, OP4177ARM Datasheet

REV. B

Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.

a

OP1177/OP2177/OP4177

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone]www.analog.com
Fax: [phone] © Analog Devices, Inc., 2002

Precision Low Noise, Low Input

Bias Current Operational Amplifiers

FEATURES
Low Offset Voltage: 60 ␮V Max
Very Low Offset Voltage Drift: 0.7 ␮V/ⴗC Max
Low Input Bias Current: 2 nA Max
Low Noise: 8 nV/

√

Hz

CMRR, PSRR, and A

VO

> 120 dB Min
Low Supply Current: 400 ␮A/Amp
Dual Supply Operation: ⴞ2.5 V to ⴞ15 V
Unity Gain Stable
No Phase Reversal
Inputs Internally Protected Beyond Supply Voltage

APPLICATIONS
Wireless Base Station Control Circuits
Optical Network Control Circuits
Instrumentation
Sensors and Controls

Thermocouples
RTDs
Strain Bridges
Shunt Current Measurements

Precision Filters

GENERAL DESCRIPTION

The OPx177 family consists of very high-precision, single, dual,
and quad amplifiers featuring extremely low offset voltage and
drift, low input bias current, low noise, and low power con­sumption. Outputs are stable with capacitive loads of over
1,000 pF with no external compensation. Supply current is less
than 500 µA per amplifier at 30 V. Internal 500 Ω series resis-
tors protect the inputs, allowing input signal levels several volts
beyond either supply without phase reversal.

Unlike previous high-voltage amplifiers with very low offset voltages, the
OP1177 and OP2177 are available in the tiny MSOP 8-lead sur­face-mount package, while the OP4177 is available in TSSOP14.
Moreover, specified performance in the MSOP/TSSOP package is
identical to performance in the SOIC package.

OPx177 family offers the widest specified temperature range of
any high-precision amplifier in surface-mount packaging. All
versions are fully specified for operation from –40°C to +125°C for
the most demanding operating environments.

Applications for these amplifiers include precision diode power
measurement, voltage and current level setting, and level detec­tion in optical and wireless transmission systems. Additional
applications include line powered and portable instrumentation

FUNCTIONAL BLOCK DIAGRAM

8-Lead MSOP

(RM-Suffix)

ⴚIN
ⴙIN

Vⴚ

V+

NC

NC

1

45

8

OP1177

NC

OUT

NC = NO CONNECT

8-Lead SOIC

(R-Suffix)

1

2

3

4

8

7

6

5

ⴚIN

Vⴚ

+IN

V+

OUT

NC

NC

NC

NC = NO CONNECT

OP1177

8-Lead SOIC

(R-Suffix)

1

2

3

4

8

7

6

5

OP2177

ⴚIN A

Vⴚ

+IN A

OUT B

ⴚIN B

V+

+IN B

OUT A

8-Lead MSOP

(RM-Suffix)

ⴚIN A
ⴙIN A

Vⴚ

OUT B
–IN B
+IN B

V+

1

45

8

OP2177

OUT A

14-Lead TSSOP

(RU-Suffix)

OUT A

–IN A
+IN A

V+
+IN B
–IN B

OUT B

–IN D
+IN D
V–

OUT D

–IN C
OUT C

+IN C

14

8

1

7

OP4177

14-Lead SOIC

(R-Suffix)

OUT B

7

8

+IN B

5

10

ⴚIN B

6

9

V+

4

11

OP4177

ⴚIN A

2

13

+IN A

3

12

OUT A

1

14

OUT C

+IN C

ⴚIN C

Vⴚ

ⴚIN D

+IN D

OUT D

OP4177

and controls—thermocouple, RTD, strain-bridge, and other
sensor signal conditioning—and precision filters.

The OP1177 (single) and the OP2177 (dual) amplifiers are
available in the 8-lead MSOP and 8-lead SOIC packages. The
OP4177 (quad) is available in 14-lead narrow SOIC and 14-lead
TSSOP packages. MSOP and TSSOP packages are available in
tape and reel only.

REV. B

–2–

OP1177/OP2177/OP4177–SPECIFICATIONS

(@ VS = ⴞ5.0 V, VCM = 0 V, TA = 25ⴗC, unless
otherwise noted.)

Parameter Symbol Conditions Min Typ* Max Unit

INPUT CHARACTERISTICS

Offset Voltage

OP1177 V

OS

15 60 µV

OP2177/4177 V

OS

15 75 µV

OP1177/2177 V

OS

–40°C < TA < +125°C 25 100 µV

OP4177 V

OS

–40°C < TA < +125°C 25 120 µV

Input Bias Current I

B

–40°C < TA < +125°C –2 +0.5 +2 nA

Input Offset Current I

OS

–40°C < TA < +125°C –1 +0.2 +1 nA

Input Voltage Range –3.5 +3.5 V
Common-Mode Rejection Ratio CMRR V

CM

= –3.5 V to +3.5 V 120 126 dB

–40°C < T

A

< +125°C 118 125 dB

Large Signal Voltage Gain A

VO

RL = 2 kΩ , VO = –3.5 V to +3.5 V 1,000 2,000 V/mV

Offset Voltage Drift

OP1177/OP2177 ∆V

OS

/∆T –40°C < TA < +125°C 0.2 0.7 µV/°C

OP4177 ∆VOS/∆T –40°C < TA < +125°C 0.3 0.9 µV/°C

OUTPUT CHARACTERISTICS

Output Voltage High V

OH

IL = 1 mA, –40°C < TA < +125°C +4 +4.1 V

Output Voltage Low V

OL

IL = 1 mA, –40°C < TA < +125°C –4.1 –4 V

Output Current I

OUT

V

DROPOUT

< 1.2 V ±10 mA

POWER SUPPLY

Power Supply Rejection Ratio

OP1177 PSRR V

S

= ±2.5 V to ±15 V, 120 130 dB

–40°C < T

A

< +125°C 115 125 dB

OP2177/OP4177 PSRR V

S

= ±2.5 V to ±15 V, 118 121 dB

–40°C < T

A

< +125°C 114 120 dB

Supply Current/Amplifier I

SY

VO = 0 V 400 500 µA
–40°C < TA < +125°C 500 600 µA

DYNAMIC PERFORMANCE

Slew Rate SR R

L

= 2 kΩ 0.7 V/µs

Gain Bandwidth Product GBP 1.3 MHz

NOISE PERFORMANCE

Voltage Noise en p-p 0.1 Hz to 10 Hz 0.4 µV p-p
Voltage Noise Density e

n

f = 1 kHz 7.9 8.5 nV/√Hz

Current Noise Density i

n

f = 1 kHz 0.2 pA/√Hz

MULTIPLE AMPLIFIERS
CHANNEL SEPARATION C

S

DC 0.01 µV/V
f = 100 kHz –120 dB

*Typical values cover all parts within one standard deviation of the average value. Average values, given in many competitors ’ data sheets as “typical,” give unrealistically

low estimates for parameters that can have both positive and negative values.

Specifications subject to change without notice.

REV. B

–3–

OP1177/OP2177/OP4177

ELECTRICAL CHARACTERISTICS

(@ VS = ⴞ15 V, VCM = 0 V, TA = 25ⴗC, unless otherwise noted.)

Parameter Symbol Conditions Min Typ* Max Unit

INPUT CHARACTERISTICS

Offset Voltage

OP1177 V

OS

15 60 µV

OP2177/OP4177 V

OS

15 75 µV

OP1177/OP2177 V

OS

–40°C < TA < +125°C 25 100 µV

OP4177 V

OS

–40°C < TA < +125°C 25 120 µV

Input Bias Current I

B

–40°C < TA < +125°C –2 +0.5 +2 nA

Input Offset Current I

OS

–40°C < TA < +125°C –1 +0.2 +1 nA

Input Voltage Range –13.5 +13.5 V
Common-Mode Rejection Ratio CMRR V

CM

= –13.5 V to +13.5 V

–40°C < T

A

< +125°C 120 125 dB

Large Signal Voltage Gain A

VO

RL = 2 kΩ , VO = –13.5 V to +13.5 V 1,000 3,000 V/mV

Offset Voltage Drift

OP1177/OP2177 ∆V

OS

/∆T –40°C < TA < +125°C 0.2 0.7 µV/°C

OP4177 ∆VOS/∆T –40°C < TA < +125°C 0.3 0.9 µV/°C

OUTPUT CHARACTERISTICS

Output Voltage High V

OH

IL = 1 mA, –40°C < TA < +125°C +14 +14.1 V

Output Voltage Low V

OL

IL = 1 mA, –40°C < TA < +125°C –14.1 –14 V

Output Current I

OUT

V

DROPOUT

< 1.2 V ±10 mA

Short Circuit Current I

SC

±35 mA

POWER SUPPLY

Power Supply Rejection Ratio

OP1177 PSRR V

S

= ±2.5 V to ±15 V, 120 130 dB

–40°C < T

A

< +125°C 115 125 dB

OP2177/OP4177 PSRR V

S

= ±2.5 V to ±15 V, 118 121 dB

–40°C < T

A

< +125°C 114 120 dB

Supply Current/Amplifier I

SY

VO = 0 V 400 500 µA
–40°C < TA < +125°C 500 600 µA

DYNAMIC PERFORMANCE

Slew Rate SR RL = 2 kΩ 0.7 V/µs
Gain Bandwidth Product GBP 1.3 MHz

NOISE PERFORMANCE

Voltage Noise en p-p 0.1 Hz to 10 Hz 0.4 µV p-p
Voltage Noise Density e

n

f = 1 kHz 7.9 8.5 nV/√Hz

Current Noise Density i

n

f = 1 kHz 0.2 pA/√Hz

MULTIPLE AMPLIFIERS
CHANNEL SEPARATION C

S

DC 0.01 µV/V
f = 100 kHz –120 dB

*Typical values cover all parts within one standard deviation of the average value. Average values, given in many competitors ’ data sheets as “typical,” give unrealistically

low estimates for parameters that can have both positive and negative values.

Specifications subject to change without notice.

REV. B

OP1177/OP2177/OP4177

–4–

ABSOLUTE MAXIMUM RATINGS*

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 V

Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V

S–

to V

S+

Differential Input Voltage . . . . . . . . . . . . . . ±Supply Voltage

Storage Temperature Range

R, RM, and RU Packages . . . . . . . . . . . –65°C to +150°C

Operating Temperature Range

OP1177/OP2177/OP4177 . . . . . . . . . . . –40°C to +125°C

Junction Temperature Range

R, RM, and RU Packages . . . . . . . . . . . –65°C to +150°C

Lead Temperature Range (Soldering, 10 sec) . . . . . . . 300°C

*Stresses above those listed under Absolute Maximum Ratings may cause perma-

nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational sections
of this specification is not implied. Exposure to absolute maximum rating condi­tions for extended periods may affect device reliability.

Package Type ␪

JA

1

␪

JC

Unit

8-Lead MSOP (RM)

2

190 44 °C/W
8-Lead SOIC (R) 158 43 °C/W
14-Lead SOIC (R) 120 36 °C/W
14-Lead TSSOP (RU) 240 43 °C/W

NOTES

1

θJA is specified for worst-case conditions, i.e., θ

JA

is specified for device soldered

in circuit board for surface-mount packages.

2

MSOP is only available in tape and reel.

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the OP1177/OP2177/OP4177 features proprietary ESD protection circuitry, permanent damage
may occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.

WARNING!

ESD SENSITIVE DEVICE

ORDERING GUIDE

Temperature Package Package Branding

Model Range Description Option Information

OP1177ARM –40°C to +125°C 8-Lead MINI_SOIC RM-8 AZA
OP1177AR –40°C to +125°C 8-Lead SOIC SO-8
OP2177ARM –40°C to +125°C 8-Lead MINI_SOIC RM-8 B2A
OP2177AR –40°C to +125°C 8-Lead SOIC SO-8
OP4177AR –40°C to +125°C 14-Lead SOIC R-14
OP4177ARU –40°C to +125°C 14-Lead TSSOP RU-14

REV. B

–5–

OP1177/OP2177/OP4177

INPUT OFFSET VOLTAGE – ␮V

NUMBER OF AMPLIFIERS

50

15

0

ⴚ40

40

ⴚ30 ⴚ20 ⴚ10

02030

VSY = ⴞ15V

10

45

20

10

5

30

25

40

35

TPC 1. Input Offset Voltage
Distribution

LOAD CURRENT – mA

⌬OUTPUT VOLTAGE – V

1.8

0.8

0

0.001 0.01 10

0.1 1

0.4

VSY = ⴞ15V
T

A

= 25ⴗC

0.2

0.6

1.0

SINK

SOURCE

1.4

1.6

1.2

TPC 4. Output Voltage to Supply
Rail vs. Load Current

CLOSED-LOOP GAIN – dB

120

100

ⴚ80

80

60

40

20

0

ⴚ20

ⴚ40

ⴚ60

FREQUENCY – Hz

1k 10k 100M

100k 1M 10M

VSY = ⴞ15V
V

IN

= 4mV p-p

C

L

= 0

R

L

=

A

V

= 100

AV = 10

AV = 1

TPC 7. Closed-Loop Gain vs.
Frequency

TCVOS – ␮V/ⴗC

NUMBER OF AMPLIFIERS

90

30

0

0.05

0.15 0.25 0.35

0.45 0.55

40

20

10

60

50

80

70

VSY = ⴞ15V

TPC 2. Input Offset Voltage
Drift Distribution

TEMPERATURE – ⴗC

INPUT BIAS CURRENT – nA

3

ⴚ3

ⴚ50

150

0 50 100

2

0

ⴚ1

ⴚ2

VSY = ⴞ15V

1

TPC 5. Input Bias Current vs.
Temperature

OUTPUT IMPEDANCE – ⍀

500

450

0

400

350

300

250

200

150

100

50

FREQUENCY – Hz

100 1k 10k

100k 1M

VSY = ⴞ15V
V

IN

= 50mV p-p

A

V

= 100

AV = 10

AV = 1

TPC 8. Output Impedance vs.
Frequency

INPUT BIAS CURRENT – nA

NUMBER OF AMPLIFIERS

140

0

0.6

0.1 0.2 0.3 0.5

120

80

60

40

20

100

00.4

VSY = ⴞ15V

0.7

TPC 3. Input Bias Current
Distribution

VSY = ⴞ15V
C

L

= 0

R

L

=

FREQUENCY – Hz

PHASE SHIFT – Degrees

45

90

135

180

0

100k 1M 10M

GAIN

PHASE

OPEN-LOOP GAIN – dB

60

50

40

30

20

10

0

ⴚ10

ⴚ20

TPC 6. Open-Loop Gain and
Phase Shift vs. Frequency

VSY = ⴞ15V
C

L

= 300pF

R

L

= 2k⍀

V

IN

= 4V

A

V

= 1

TIME – 100␮s/DIV

VOLTAGE – 1V/DIV

GND

TPC 9. Large Signal Transient
Response

Typical Performance Characteristics–

REV. B

OP1177/OP2177/OP4177

–6–

TIME – 100␮s/DIV

VOLTAGE – 100mV/DIV

VSY = ⴞ15V
C

L

= 1,000pF

R

L

= 2k⍀

V

IN

= 100mV

A

V

= 1

GND

TPC 10. Small Signal Transient
Response

0V

15V

TIME – 4␮s/DIV

INPUT

OUTPUT

VSY = ⴞ15V
R

L

= 10k⍀

A

V

= ⴚ100

V

IN

= 200mV

ⴚ200mV

0V

TPC 13. Negative Overvoltage
Recovery

TIME – 1s/DIV

V

NOISE

– 0.2␮V/DIV

VSY = ⴞ15V

TPC 16. 0.1 Hz to 10 Hz Input
Voltage Noise

+OS

CAPACITANCE – pF

SMALL SIGNAL OVERSHOOT – %

110 10

k

100

VSY = ⴞ15V
R

L

= 2k⍀

V

IN

= 100mV p-p

50

45

0

40

35

30

25

20

15

10

5

1k

ⴚOS

TPC 11. Small Signal Overshoot vs.
Load Capacitance

FREQUENCY – Hz

CMRR – dB

0

10 10k 10M

140

120

100

80

60

40

20

100 1k 100k 1M

VSY = ⴞ15V

TPC 14. CMRR vs. Frequency

VOLTAGE NOISE DENSITY – nV/ Hz

FREQUENCY – Hz

2

0 25050 100 150 200

4

6

8

10

12

14

16

18

VSY = ⴞ15V

TPC 17. Voltage Noise Density

0V

ⴚ15V

TIME – 10␮s/DIV

INPUT

OUTPUT

VSY = ⴞ15V
R

L

= 10k⍀

A

V

= ⴚ100

V

IN

= 200mV

+200mV

0V

TPC 12. Positive Overvoltage
Recovery

FREQUENCY – Hz

PSRR – dB

0

10 10k 10M

140

120

100

80

60

40

20

100 1k 100k 1M

+PSRR

ⴚPSRR

VSY = ⴞ15V

TPC 15. PSRR vs. Frequency

V

SY

= ⴞ15V

ⴚI

SC

TEMPERATURE – ⴗC

SHORT CIRCUIT CURRENT – mA

35

0
ⴚ50

150

0 50 100

30

5

25

20

15

10

ⴙI

SC

TPC 18. Short Circuit Current vs.
Temperature