OP27（低噪声精密高速运算放大器）.pdf_op27典型应用电路

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OP27A, OP27C, OP27E, OP27G

OP37A, OP37C, OP37E, OP37G

LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS

SLOS100B – FEBRUARY 1989 – REVISED AUGUST 1994

2–1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251–1443

• Direct Replacements for PMI and LTC OP27

and OP37 Series

Features of OP27A, OP27C, OP37A, and

OP37C:

• Maximum Equivalent Input Noise Voltage:

3.8 nV/√Hz

at 1 kHz

5.5 nV/√Hz

at 10 kHz

• Very Low Peak-to-Peak Noise Voltage at

0.1 Hz to 10 Hz . . . 80 nV Typ

• Low Input Offset Voltage ...25 µV Max

• High Voltage Amplification ...1 V/µV Min

Feature of OP37 Series:

• Minimum Slew Rate ...11 V/µs

description

The OP27 and OP37 operational amplifiers

combine outstanding noise performance with

excellent precision and high-speed specifications.

The wideband noise is only 3 nV/√Hz

and with the

1/f noise corner at 2.7 Hz, low noise is maintained

for all low-frequency applications.

The outstanding characteristics of the OP27 and

OP37 make these devices excellent choices

for low-noise amplifier applications requiring

precision performance and reliability. Additionally,

the OP37 is free of latch-up in high-gain,

large-capacitive-feedback configurations.

The OP27 series is compensated for unity gain.

The OP37 series is decompensated for increased

bandwidth and slew rate and is stable down to a

gain of 5.

The OP27A, OP27C, OP37A, and OP37C are

characterized for operation over the full military

temperature range of –55°C to 125°C. The

OP27E, OP27G, OP37E, and OP37G are

characterized for operation from – 25°C to 85°C.

AVAILABLE OPTIONS

max

STABLE

PACKAGE

max

AT 25°C

STABLE

GAIN

CERAMIC DIP

(JG)

CHIP CARRIER

(FK)

PLASTIC DIP

(P)

25 µV

1 — — OP27EP

Cto85

5 — — OP37EP

–

25°C

85°C

100 µV

1 — — OP27GP

100

5 — — OP37GP

25 µV

1 OP27AJG OP27AFK —

Cto125

5 OP37AJG OP37AFK —

–

55°C

125°C

100 µV

1 OP27CJG — —

100

5 OP37CJG — —

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

TRIM

IN–

IN +

CC –

TRIM

CC+

OUT

JG OR P PACKAGE

(TOP VIEW)

IN+

IN –

OUT

TRIM

symbol

3 2 1 20 19

910111213

CC+

OUT

1N–

IN+

FK PACKAGE

(TOP VIEW)

NC – No internal connection

CC –

Pin numbers are for the JG and P packages.

V TRIM

–

OP27A, OP27C, OP27E, OP27G

OP37A, OP37C, OP37E, OP37G

LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS

SLOS100B – FEBRUARY 1989 – REVISED AUGUST 1994

2–3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251–1443

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

Supply voltage, V

CC+

(see Note 1) 22 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply voltage, V

CC–

(see Note 1) – 22 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage, V

CC±

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Duration of output short circuit unlimited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Differential input current (see Note 2) ±25 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous power dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range: OP27A, OP27C, OP37A, OP37C – 55°C to 125°C. . . . . . . . . . . . . . .

OP27E, OP27G, OP37E, OP37G – 25°C to 85°C. . . . . . . . . . . . . . .

Storage temperature range – 65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: JG or FK package 300°C. . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds : P package 260°C. . . . . . . . . . . . . . . . . . . .

NOTES: 1. All voltage values are with respect to the midpoint between V

CC+

and V

CC–

unless otherwise noted.

2. The inputs are protected by back-to-back diodes. Current-limiting resistors are not used in order to achieve low noise. Excessive

input current will flow if a differential input voltage in excess of approximately ± 0.7 V is applied between the inputs unless some

limiting resistance is used.

DISSIPATION RATING TABLE

PACKAGE

≤ 25°C

POWER RATING

DERATING FACTOR

ABOVE T

= 25°C

= 85°C

POWER RATING

= 125°C

POWER RATING

1050 mW

1375 mW

1000 mW

8.4 mW/°C

11.0 mW/°C

8.0 mW/°C

546 mW

715 mW

520 mW

210 mW

275 mW

N/A

OP27A, OP27C, OP27E, OP27G

OP37A, OP37C, OP37E, OP37G

LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS

SLOS100B – FEBRUARY 1989 – REVISED AUGUST 1994

2–4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251–1443

recommended operating conditions

OP27A, OP37A OP27C, OP37C

UNIT

MIN NOM MAX MIN NOM MAX

UNIT

Supply voltage, V

CC+

4 15 22 4 15 22 V

Supply voltage, V

CC–

–4 –15 –22 –4 –15 –22 V

Common mode in

ut voltage V

CC±

= ± 15 V, T

= 25°C ± 11 ± 11

Common

mode

inp

oltage

CC±

= ± 15 V, T

= – 55°C to 125°C ±10.3 ±10.2

Operating free-air temperature, T

–55 125 –55 125 °C

electrical characteristics at specified free-air temperature, V

CC±

= ±15 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

†

OP27A, OP37A OP27C, OP37C

UNIT

PARAMETER

TEST

CONDITIONS

†

MIN TYP MAX MIN TYP MAX

UNIT

ut offset voltage

= 0, V

= 0

25°C 10 25 30 100

µV

Inp

offset

oltage

= 50 Ω, See Note 3

Full range 60 300

VIO

Average temperature

coefficient of input

offset voltage

Full range 0.2 0.6 0.4 1.8 µV/°C

Long-term drift of input

offset voltage

See Note 4 0.2 1 0.4 2 µV/mo

ut offset current

=0 V

25°C 7 35 12 75

Inp

offset

rrent

Full range 50 135

ut bias current

=0 V

25°C ±10 ±40 ±15 ±80

Inp

bias

rrent

Full range ±60 ±150

ICR

Common-mode input

25°C

–11

ICR

voltage range

Full range

10.3

–10.3

10.5

–10.5

≥ 2 kΩ ±12 ±13.8 ±11.5 ±13.5

Peak output voltage swing

≥ 0.6 kΩ

±10 ±11.5 ±10 ±11.5

≥ 2 kΩ Full range ±11.5 10.5

≥ 2 kΩ, V

= ±10 V 1000 1800 700 1500

Large signal differential

≥ 1 kΩ, V

= ±10 V 800 1500 1500

Large

signal

differential

voltage amplification

≥ 0.6 kΩ, V

= ±1 V,

CC±

= ± 4 V

250 700 200 500

V/mV

≥ 2 kΩ, V

= ±10 V Full range 600 300

i(CM)

Common-mode input

resistance

3 2 GΩ

Output resistance V

= 0, I

= 0 25°C 70 70 Ω

CMRR

Common-mode rejection

= ±11 V 25°C 114 126 100 120

CMRR

ratio

= ±10 V

Full range 110 94

SVR

Supply voltage rejection

CC±

= ±4 V to ±18 V 25°C 100 120 94 118

SVR

ygj

ratio

CC±

= ±4.5 V to ±18 V Full range 96 86

†

Full range is – 55°C to 125°C.

NOTES: 3. Input offset voltage measurements are performed by automatic test equipment approximately 0.5 seconds after applying power.

4. Long-term drift of input offset voltage refers to the average trend line of offset voltage versus time over extended periods after the

first 30 days of operation. Excluding the initial hour of operation, changes in V

during the first 30 days are typically 2.5 µV

(see Figure 3).

OP27A, OP27C, OP27E, OP27G

OP37A, OP37C, OP37E, OP37G

LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS

SLOS100B – FEBRUARY 1989 – REVISED AUGUST 1994

2–5

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251–1443

recommended operating conditions

MIN NOM MAX UNIT

Supply voltage, V

CC+

4 15 22 V

Supply voltage, V

CC –

–4 –15 –22 V

Common mode in

ut voltage V

CC±

= ±15 V, T

= 25°C ±11

Common

mode

inp

oltage

CC±

= ±15 V, T

= – 55°C to 125°C ±10.5

Operating free-air temperature, T

–25 85 °C

electrical characteristics at specified free-air temperature, V

= ±15 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

†

OP27E, OP37E OP27G, OP37G

UNIT

PARAMETER

TEST

CONDITIONS

†

MIN TYP MAX MIN TYP MAX

UNIT

ut offset voltage

= 0, V

= 0

25°C 10 25 30 100

µV

Inp

offset

oltage

= 50 Ω, See Note 3

Full range 60 220

αV

Average temperature

coefficient of input

offset voltage

Full range 0.2 0.6 0.4 1.8 µV/°C

Long-term drift of input

offset voltage

See Note 4 0.2 1 0.4 2 µV/mo

ut offset current

=0 V

25°C 7 35 12 75

Inp

offset

rrent

Full range 50 135

ut bias current

=0 V

25°C ±10 ±40 ±15 ±80

Inp

bias

rrent

Full range ±60 ±150

ICR

Common-mode input

25°C

–11

ICR

voltage range

Full range

10.3

–10.3

10.5

–10.5

≥ 2 kΩ ±12 ±13.8 ±11.5 ±13.5

Peak output voltage swing

≥ 0.6 kΩ

±10 ±11.5 ±10 ±11.5

≥ 2 kΩ Full range ±11.5 10.5

≥ 2 kΩ, V

= ±10 V 1000 1800 700 1500

Large signal differential

≥ 1 kΩ, V

= ±10 V 800 1500 1500

Large

signal

differential

voltage amplification

≥ 0.6 kΩ, V

= ±1 V,

CC±

= ± 4 V

250 700 200 500

V/mV

≥ 2 kΩ, V

= ± 10 V Full range 600 450

i(CM)

Common-mode input

resistance

3 2 GΩ

Output resistance V

= 0, I

= 0 25°C 70 70 Ω

CMRR

Common-mode rejection

= ±11 V 25°C 114 126 100 120

CMRR

ratio

= ±10 V

Full range 110 96

SVR

Supply voltage rejection

CC±

= ± 4 V to ±18 V 25°C 100 120 94 118

SVR

ygj

ratio

CC±

= ± 4.5 V to ±18 V Full range 96 90

†

Full range is – 25°C to 85°C.

NOTES: 3. Input offset voltage measurements are performed by automatic test equipment approximately 0.5 seconds after applying power.

4. Long-term drift of input offset voltage refers to the average trend line of offset voltage versus time over extended periods after the

first 30 days of operation. Excluding the initial hour of operation, changes in V

during the first 30 days are typically 2.5 µV

(see Figure 3).

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