OP495GPZ Analog Devices Inc, OP495GPZ Datasheet

OP495GPZ

Manufacturer Part Number

OP495GPZ

Description

IC OPAMP GP R-R 85KHZ QUAD 14DIP

Manufacturer

Analog Devices Inc

Datasheet

1.OP295GPZ.pdf (16 pages)

Specifications of OP495GPZ

Slew Rate

0.03 V/µs

Amplifier Type

General Purpose

Number Of Circuits

Output Type

Rail-to-Rail

Gain Bandwidth Product

85kHz

Current - Input Bias

7nA

Voltage - Input Offset

300µV

Current - Supply

175µA

Current - Output / Channel

25mA

Voltage - Supply, Single/dual (±)

3 V ~ 36 V, ±1.5 V ~ 18 V

Operating Temperature

-40°C ~ 125°C

Mounting Type

Through Hole

Package / Case

14-DIP (0.300", 7.62mm)

Op Amp Type

Low Offset Voltage

No. Of Amplifiers

Bandwidth

85kHz

Supply Voltage Range

Â± 1.5V To Â± 15V

Amplifier Case Style

DIP

No. Of Pins

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

-3db Bandwidth

Lead Free Status / RoHS Status

Lead free / RoHS Compliant, Lead free / RoHS Compliant

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FEATURES

Rail-to-rail output swing

Single-supply operation: 3 V to 36 V

Low offset voltage: 300 μV

Gain bandwidth product: 75 kHz

High open-loop gain: 1000 V/mV

Unity-gain stable

Low supply current/per amplifier: 150 μA maximum

APPLICATIONS

Battery-operated instrumentation

Servo amplifiers

Actuator drives

Sensor conditioners

Power supply control

GENERAL DESCRIPTION

Rail-to-rail output swing combined with dc accuracy are the

key features of the OP495 quad and OP295 dual CBCMOS

operational amplifiers. By using a bipolar front end, lower noise

and higher accuracy than those of CMOS designs have been

achieved. Both input and output ranges include the negative

supply, providing the user with zero-in/zero-out capability. For

users of 3.3 V systems such as lithium batteries, the OP295/OP495

are specified for 3 V operation.

Maximum offset voltage is specified at 300 μV for 5 V operation,

and the open-loop gain is a minimum of 1000 V/mV. This yields

performance that can be used to implement high accuracy systems,

even in single-supply designs.

The ability to swing rail-to-rail and supply 15 mA to the load

makes the OP295/OP495 ideal drivers for power transistors and

H bridges. This allows designs to achieve higher efficiencies and

to transfer more power to the load than previously possible

without the use of discrete components.

For applications such as transformers that require driving

inductive loads, increases in efficiency are also possible.

Stability while driving capacitive loads is another benefit of this

design over CMOS rail-to-rail amplifiers. This is useful for

driving coax cable or large FET transistors. The OP295/OP495

are stable with loads in excess of 300 pF.

Rev. G

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. Specifications subject to change without notice. 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 owners.

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

Tel: 781.329.4700

Fax: 781.461.3113

The OP295 and OP495 are specified over the extended indus-

trial (−40°C to +125°C) temperature range. The OP295 is

available in 8-lead PDIP and 8-lead SOIC_N surface-mount

packages. The OP495 is available in 14-lead PDIP and 16-lead

SOIC_W surface-mount packages.

OUT A

OUT B

OUT A

OUT B

Dual/Quad Rail-to-Rail

Operational Amplifiers

OUT A

–IN A

+IN A

–IN A

+IN A

+IN B

–IN B

Figure 1. 8-Lead Narrow-Body SOIC_N

+IN A

+IN B

–IN A

–IN B

–IN A

+IN A

PIN CONFIGURATIONS

V+

V–

V+

V–

Figure 4. 16-Lead SOIC_W

Figure 3. 14-Lead PDIP

Figure 2. 8-Lead PDIP

NC = NO CONNECT

(Not to Scale)

S Suffix (RW-16)

(Not to Scale)

P Suffix (N-14)

P Suffix (N-8)

TOP VIEW

S Suffix (R-8)

TOP VIEW

OP495

OP295

OP295/OP495

OUT D

–IN D

+IN D

V–

+IN C

–IN C

OUT C

V+

OUT B

–IN B

+IN B

V+

OUT B

–IN B

+IN B

OUT D

–IN D

+IN D

V–

+IN C

–IN C

OUT C

www.analog.com

Related parts for OP495GPZ

OP495GPZ Summary of contents

Page 1

FEATURES Rail-to-rail output swing Single-supply operation Low offset voltage: 300 μV Gain bandwidth product: 75 kHz High open-loop gain: 1000 V/mV Unity-gain stable Low supply current/per amplifier: 150 μA maximum APPLICATIONS Battery-operated instrumentation Servo amplifiers ...

Page 2

OP295/OP495 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Pin Configurations ........................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Characteristics ............................................................. 3 Absolute Maximum Ratings ............................................................ 5 Thermal Resistance ...................................................................... 5 ESD Caution ...

Page 3

SPECIFICATIONS ELECTRICAL CHARACTERISTICS 25°C, unless otherwise noted Table 1. Parameter Symbol INPUT CHARACTERISTICS Offset Voltage V Input Bias Current I Input Offset Current I Input Voltage Range ...

Page 4

OP295/OP495 Parameter Symbol OUTPUT CHARACTERISTICS Output Voltage Swing High V Output Voltage Swing Low V POWER SUPPLY Power Supply Rejection Ratio PSRR Supply Current per Amplifier I DYNAMIC PERFORMANCE Slew Rate SR Gain Bandwidth Product GBP Phase Margin θ NOISE ...

Page 5

ABSOLUTE MAXIMUM RATINGS Table 4. 1 Parameter Supply Voltage Input Voltage 2 Differential Input Voltage Output Short-Circuit Duration Storage Temperature Range P, S Packages Operating Temperature Range OP295G, OP495G Junction Temperature Range P, S Packages Lead Temperature (Soldering, 60 sec) ...

Page 6

OP295/OP495 TYPICAL PERFORMANCE CHARACTERISTICS 140 120 100 –50 – TEMPERATURE (°C) Figure 5. Supply Current Per Amplifier vs. Temperature 15.2 V 15.0 14.8 14.6 14.4 14.2 –14.4 –14.6 –14.8 –15.0 –15.2 –50 –25 0 ...

Page 7

BASED ON 1200 OP AMPS 450 400 350 300 250 200 150 100 50 0 –100 – 100 150 200 INPUT OFFSET VOLTAGE (µV) Figure 11. OP495 Input Offset (V ) Distribution OS 500 BASED ON 1200 ...

Page 8

OP295/OP495 25° 100mV SOURCE 10mV SINK 1mV 100µV 1µA 10µA 100µA 1mA LOAD CURRENT Figure 17. Output Voltage to Supply Rail vs. Load Current 120 100 OP295 ...

Page 9

APPLICATIONS RAIL-TO-RAIL APPLICATION INFORMATION The OP295/OP495 have a wide common-mode input range extending from ground to within about 800 mV of the positive supply. There is a tendency to use the OP295/OP495 in buffer applications where the input voltage could ...

Page 10

OP295/OP495 Finally, the potentiometer, R8, is needed to adjust the offset voltage to null it to zero. Similar performance can be obtained using an OP90 as the output amplifier with a savings of about 185 μA of supply current. However, ...

Page 11

V IN OP295/ 6 OP495 – – 100kΩ 20kΩ 20kΩ V REF 200kΩ REF R G Figure ...

Page 12

OP295/OP495 17.8kΩ DAC8043 1.23V I REF OUT 2 GND CLK SRI LD AD589 41.2kΩ DIGITAL CONTROL R3 5kΩ TOTAL POWER DISSIPATION = ...

Page 13

Amplifier A1 provides error amplification for the normal voltage regulation loop. As long as the output current is less than 1 A, the output of Amplifier A2 swings to ground, reverse- biasing the diode and effectively taking itself out of ...

Page 14

OP295/OP495 OUTLINE DIMENSIONS 0.210 (5.33) MAX 0.150 (3.81) 0.130 (3.30) 0.115 (2.92) 0.022 (0.56) 0.018 (0.46) 0.014 (0.36) CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE ...

Page 15

BSC 0.210 (5.33) MAX 0.015 0.150 (3.81) (0.38) MIN 0.130 (3.30) 0.110 (2.79) SEATING PLANE 0.022 (0.56) 0.005 (0.13) 0.018 (0.46) MIN ...

Page 16

... OP295GSZ −40°C to +125°C 1 OP295GSZ-REEL −40°C to +125°C 1 OP295GSZ-REEL7 −40°C to +125°C OP495GP −40°C to +125°C 1 OP495GPZ −40°C to +125°C OP495GS −40°C to +125°C OP495GS-REEL −40°C to +125°C 1 OP495GSZ −40°C to +125°C OP495GSZ-REEL 1 − ...

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