OP281GSZ Analog Devices Inc, OP281GSZ Datasheet

OP281GSZ

Manufacturer Part Number

OP281GSZ

Description

IC OPAMP GP R-R 105KHZ LP 8SOIC

Manufacturer

Analog Devices Inc

Datasheets

1.OP281GSZ.pdf (16 pages)

2.OP281GSZ.pdf (20 pages)

Specifications of OP281GSZ

Slew Rate

0.028 V/µs

Amplifier Type

General Purpose

Number Of Circuits

Output Type

Rail-to-Rail

Gain Bandwidth Product

105kHz

Current - Input Bias

3nA

Voltage - Input Offset

100µV

Current - Supply

3.3µA

Current - Output / Channel

12mA

Voltage - Supply, Single/dual (±)

2.7 V ~ 12 V, ±1.35 V ~ 6 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

8-SOIC (3.9mm Width)

Op Amp Type

Low Power

No. Of Amplifiers

Bandwidth

105kHz

Supply Voltage Range

2.7V To 12V

Amplifier Case Style

SOIC

No. Of Pins

Operating Temperature Range

-40Â°C To

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

-3db Bandwidth

Lead Free Status / RoHS Status

Lead free / RoHS Compliant, Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

OP281GSZ

Manufacturer:

Quantity:

6 219

Company:

Meier Automation Equipment Co., Limited

Part Number:

OP281GSZ

Manufacturer:

ADI/亚德诺

Quantity:

20 000

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GENERAL DESCRIPTION

The OP281 and OP481 are dual and quad ultralow power, single-

supply amplifiers featuring rail-to-rail outputs. Each operates

from supplies as low as 2.0 V and are specified at +3 V and +5 V

single supply as well as ± 5 V dual supplies.

Fabricated on Analog Devices’ CBCMOS process, the

OP281/OP481 features a precision bipolar input and an output

that swings to within millivolts of the supplies and continues to

sink or source current all the way to the supplies.

Applications for these amplifiers include safety monitoring,

portable equipment, battery and power supply control, and

signal conditioning and interfacing for transducers in very low

power systems.

The output’s ability to swing rail-to-rail and not increase supply

current, when the output is driven to a supply voltage, enables

the OP281/OP481 to be used as comparators in very low power

systems. This is enhanced by their fast saturation recovery time.

Propagation delays are 250 ms.

The OP281/OP481 are specified over the extended industrial

temperature range (–40∞C to +85∞C). The OP281 dual amplifier

is available in 8-lead SOIC surface-mount and TSSOP packages.

The OP481 quad amplifier is available in narrow 14-lead SOIC

and TSSOP packages.

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. Trademarks and

registered trademarks are the property of their respective companies.

FEATURES

Low Supply Current: 4 A/Amplifier Max

Single-Supply Operation: 2.7 V to 12 V

Wide Input Voltage Range

Rail-to-Rail Output Swing

Low Offset Voltage: 1.5 mV

No Phase Reversal

APPLICATIONS

Comparator

Battery-Powered Instrumentation

Safety Monitoring

Remote Sensors

Low Voltage Strain Gage Amplifiers

Ultralow Power, Rail-to-Rail Output

NOTE: PIN ORIENTATION IS EQUIVALENT FOR

EACH PACKAGE VARIATION

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703

OUT A

OUT B

Narrow-Body SOIC

OUT A

–IN A

+IN A

+IN B

–IN B

–IN A

+IN A

V+

V–

8-Lead SOIC

(R Suffix)

14-Lead

OP481

OP281

PIN CONFIGURATIONS

Operational Amplifiers

OUT D

–IN D

+IN D

V–

+IN C

–IN C

OUT C

V+

OUT B

–IN B

+IN B

OP281/OP481

14-Lead TSSOP

8-Lead TSSOP

(RU Suffix)

OP481

OP281

www.analog.com

Related parts for OP281GSZ

OP281GSZ Summary of contents

Page 1

FEATURES Low Supply Current: 4 A/Amplifier Max Single-Supply Operation: 2 Wide Input Voltage Range Rail-to-Rail Output Swing Low Offset Voltage: 1 Phase Reversal APPLICATIONS Comparator Battery-Powered Instrumentation Safety Monitoring Remote Sensors Low Voltage Strain ...

Page 2

OP281/OP481–SPECIFICATIONS ELECTRICAL SPECIFICATIONS Parameter INPUT CHARACTERISTICS Offset Voltage Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift Bias Current Drift Offset Current Drift OUTPUT CHARACTERISTICS Output Voltage High Output Voltage ...

Page 3

ELECTRICAL SPECIFICATIONS Parameter INPUT CHARACTERISTICS Offset Voltage Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift Bias Current Drift Offset Current Drift OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low ...

Page 4

OP281/OP481 ELECTRICAL SPECIFICATIONS Parameter INPUT CHARACTERISTICS Offset Voltage Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Large Signal Voltage Gain Offset Voltage Drift Bias Current Drift Offset Current Drift OUTPUT CHARACTERISTICS Output Voltage Swing Short Circuit Limit ...

Page 5

ABSOLUTE MAXIMUM RATINGS* Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 V ...

Page 6

OP281/OP481–Typical Performance Characteristics 2. –1.0 –0.8 –0.6–0.4 –0.2 0 0.2 0.4 0.6 0.8 1.0 INPUT OFFSET VOLTAGE – mV TPC 1. Input ...

Page 7

100k 135 0 180 –10 225 –20 270 –30 100 1k 10k 100k 1M FREQUENCY – Hz TPC ...

Page 8

OP281/OP481 p INFINITE 100 1k 10k 100k FREQUENCY – Hz TPC 19. Maximum Output Swing vs. Frequency ...

Page 9

2.50V 100 200µs TPC 28. No Phase Reversal 120 105 • ...

Page 10

OP281/OP481 APPLICATIONS Theory of Operation The OPx81 family of op amps is comprised of extremely low powered, rail-to-rail output amplifiers, requiring less than quiescent current per amplifier. Many other competitors’ devices may be advertised as low supply ...

Page 11

Capacitive Loading Most low supply current amplifiers have difficulty driving capacitive loads due to the higher currents required from the output stage for such loads. Higher capacitance at the output will increase the amount of overshoot and ringing in the ...

Page 12

OP281/OP481 Low-Side Current Monitor In the design of power supply control circuits, a great deal of design effort is focused on ensuring a pass transistor’s long-term reliability over a wide range of load current conditions result, monitoring and ...

Page 13

The OP281-A op amp provides about gain for audio signals coming from the microphone. The gain is set by the 300 kW and 11 kW resistors. The gain bandwidth product of the amplifier is 95 kHz, which, ...

Page 14

OP281/OP481 8-Lead Standard Small Outline Package [SOIC] Narrow Body (R-8) Dimensions shown in millimeters and (inches) 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2440) 4.00 (0.1574) 5.80 (0.2284) 3.80 (0.1497 1.27 (0.0500) 1.75 (0.0688) BSC 1.35 (0.0532) 0.25 ...

Page 15

Revision History Location 3/03—Data Sheet changed from REV REV. B. Changes to FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 16

–16– ...

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