OP495 Analog Devices, OP495 Datasheet

no-image

OP495

Manufacturer Part Number
OP495
Description
Quad Rail-to-Rail Operational Amplifier
Manufacturer
Analog Devices
Datasheet

Specifications of OP495

-3db Bandwidth
85kHz
Slew Rate
30mV/µs
Vos
300µV
Ib
20nA
# Opamps Per Pkg
4
Input Noise (nv/rthz)
45nV/rtHz
Vcc-vee
3V to 36V
Isy Per Amplifier
175µA
Packages
DIP,SOIC

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
OP495G
Manufacturer:
AD
Quantity:
5 510
Part Number:
OP495G
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
OP495GS
Manufacturer:
g0ldstqr
Quantity:
475
Part Number:
OP495GS
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
OP495GSZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
OP495GSZ-REEL
Manufacturer:
ADI/亚德诺
Quantity:
20 000
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 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–
NC
V+
V–
Figure 4. 16-Lead SOIC_W
1
2
3
4
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
Figure 3. 14-Lead PDIP
1
2
3
4
Figure 2. 8-Lead PDIP
NC = NO CONNECT
©2009 Analog Devices, Inc. All rights reserved.
(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
OP495
OP295
OP295
OP295/OP495
16
15
14
13
12
11
10
9
8
7
6
5
14
13
12
11
10
8
7
6
5
9
8
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
NC
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 OP495

OP495 Summary of contents

Page 1

... 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 ...

Page 2

... Single-Supply Differential Speaker Driver .............................. 13 High Accuracy, Single-Supply, Low Power Comparator ...... 13 Outline Dimensions ....................................................................... 14 Ordering Guide .......................................................................... 16 3/02—Rev Rev. C Figure changes to Pin Connections ................................................ 1 Deleted OP295GBC and OP495GBC from Ordering Guide ...... 3 Deleted Wafer Test Limits Table ...................................................... 3 Changes to Absolute Maximum Ratings ........................................ 4 Deleted Dice Characteristics ............................................................ 4 Rev Page ...

Page 3

... kHz kHz n Conditions ≤ V ≤ 2.0 V, −40°C ≤ T ≤ +125° kΩ /∆T OS Rev Page OP295/OP495 Min Typ Max 30 300 800 ±1 ±3 ±5 0 4.0 90 110 1000 10,000 500 1 5 4.98 5 ...

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 PERFORMANCE Voltage Noise e Voltage Noise Density ...

Page 5

... 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) 1 Absolute maximum ratings apply to packaged parts, unless otherwise noted. 2 For supply voltages less than ±18 V, the absolute maximum input voltage is equal to the supply voltage ...

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 – TEMPERATURE (°C) Figure 6. Output Voltage Swing vs. Temperature 3 3.0 2.9 2.8 2.7 2.6 2.5 –50 – TEMPERATURE (°C) Figure 7 ...

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 OP AMPS –40°C ≤ T 450 400 350 300 250 200 150 100 ...

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 – 25° –40 10mA 0.01 Figure 18. OP295 Gain and Phase vs. Frequency Rev Page ± ...

Page 9

... Based on the input common-mode range, this gain should be at least 1.2. LOW DROP-OUT REFERENCE The OP295/OP495 can be used to gain other low voltage reference to 4.5 V for use with high resolution ADCs that operate from 5 V only supplies. The circuit in Figure 19 supplies ...

Page 10

... Closed-Loop Gain 1000 DRIVING HEAVY LOADS The OP295/OP495 are well suited to drive loads by using a power transistor, Darlington, or FET to increase the current to the load. The ability to swing to either rail can assure that the device is turned on hard. This results in more power to the load and an increase in efficiency over using standard op amps with their limited output swing ...

Page 11

... V. SINGLE-SUPPLY RTD THERMOMETER AMPLIFIER This RTD amplifier takes advantage of the rail-to-rail swing of the OP295/OP495 to achieve a high bridge voltage in spite of a low 5 V supply. The OP295/OP495 amplifier servos a constant 200 μA current to the bridge. The return current drops across the parallel resistors 6.19 kΩ ...

Page 12

... Figure 29 shows a simple 3 V voltage regulator design. The regulator can deliver 50 mA load current while allowing a 0.2 V dropout voltage. The OP295/OP495 rail-to-rail output swing drives the MJE350 pass transistor without requiring special drive circuitry load, its output can swing less than the pass transistor’ ...

Page 13

... supply. SINGLE-SUPPLY DIFFERENTIAL SPEAKER DRIVER Connected as a differential speaker driver, the OP295/OP495 can deliver a minimum the load. With a 600 Ω load, the OP295/OP495 can swing close p-p across the load. V+ 100kΩ 58.7kΩ + ...

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 IN DESIGN. CORNER LEADS MAY BE CONFIGURED AS WHOLE OR HALF LEADS. 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 0 ...

Page 15

... Figure 38. 16-Lead Standard Small Outline Package [SOIC_W] Wide Body (RW-16) S Suffix Dimensions shown in millimeters and (inches) Rev Page 0.325 (8.26) 0.310 (7.87) 0.300 (7.62) 0.060 (1.52) 0.195 (4.95) MAX 0.130 (3.30) 0.115 (2.92) 0.015 (0.38) GAUGE 0.014 (0.36) PLANE 0.010 (0.25) 0.008 (0.20) 0.430 (10.92) MAX 10.65 (0.4193) 10.00 (0.3937) 45° 8° 0° 1.27 (0.0500) 0.33 (0.0130) 0.40 (0.0157) 0.20 (0.0079) OP295/OP495 ...

Page 16

... 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 −40°C to +125° RoHS Compliant Part. ©2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. ...

Related keywords