ADA4091-2ARZ Analog Devices Inc, ADA4091-2ARZ Datasheet

IC OPAMP GP R-R 1.27MHZ 8SOIC

ADA4091-2ARZ

Manufacturer Part Number
ADA4091-2ARZ
Description
IC OPAMP GP R-R 1.27MHZ 8SOIC
Manufacturer
Analog Devices Inc
Datasheet

Specifications of ADA4091-2ARZ

Slew Rate
0.46 V/µs
Design Resources
30 V Low Cost DAC Using AD5292 Digital Potentiometer (CN0111)
Amplifier Type
General Purpose
Number Of Circuits
2
Output Type
Rail-to-Rail
Gain Bandwidth Product
1.27MHz
Current - Input Bias
50nA
Voltage - Input Offset
35µV
Current - Supply
200µA
Current - Output / Channel
20mA
Voltage - Supply, Single/dual (±)
2.7 V ~ 36 V, ±1.35 V ~ 18 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Op Amp Type
Low Power
No. Of Amplifiers
2
Bandwidth
1.22MHz
Supply Voltage Range
± 1.5V To ± 15V
Amplifier Case Style
SOIC
No. Of Pins
8
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
Single-supply operation: 3 V to 36 V
Wide input voltage range
Rail-to-rail output swing
Low supply current: 250 μA/amplifier
Wide bandwidth: 1.2 MHz
Slew rate: 0.46 V/μs
Low offset voltage: 500 μV maximum
No phase reversal
Overvoltage protection (OVP)
25 V above/below supply rails at ±5 V
12 V above/below supply rails at ±15 V
APPLICATIONS
Industrial process control
Battery-powered instrumentation
Power supply control and protection
Telecommunications
Remote sensors
Low voltage strain gage amplifiers
DAC output amplifiers
GENERAL DESCRIPTION
The ADA4091-2 is a dual, micropower, single-supply, 1.2 MHz
bandwidth amplifier featuring rail-to-rail inputs and outputs.
It is guaranteed to operate from a +3 V single supply as well as
from ±15 V dual supplies.
The ADA4091 family of op amps features a unique input stage
that allows the input voltage to exceed either supply safely
without any phase inversion or latch-up; this is called over-
voltage protection, or OVP. The output voltage swings to within
10 mV of the supplies.
Applications for these amplifiers include portable telecom-
munications equipment, power supply control and protection,
and interface for transducers with wide output ranges. Sensors
requiring a rail-to-rail input amplifier include Hall effect, piezo-
electric, and resistive transducers.
Rev. A
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.
Input/Output Operational Amplifier
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The ability to swing rail-to-rail at both the input and output
enables designers to build multistage filters in single-supply
systems and to maintain high signal-to-noise ratios.
The ADA4091 family of op amps is specified over the extended
industrial temperature range of −40°C to +125°C. The ADA4091-2
is part of a growing family of 36 V, low power op amps from Analog
Devices, Inc., (see Table 1).
The ADA4091-2 is available in an 8-lead plastic SOIC surface-
mount package.
Table 1. Low Power, 36 V Operational Amplifiers
Family
Single
Dual
Quad
Micropower, OVP, Rail-to-Rail
Rail-to-Rail I/O
ADA4091-2
Figure 1. 8-Lead, Narrow-Body SOIC
OUTA
©2008–2009 Analog Devices, Inc. All rights reserved.
PIN CONFIGURATION
–INA
+INA
–V
1
2
3
4
ADA4091-2
(Not to Scale)
TOP VIEW
PJFET
AD8682
AD8684
8
7
6
5
ADA4091-2
+V
OUTB
–INB
+INB
www.analog.com
Low Noise
OP1177
OP2177
OP4177

Related parts for ADA4091-2ARZ

ADA4091-2ARZ Summary of contents

Page 1

... It is guaranteed to operate from single supply as well as from ±15 V dual supplies. The ADA4091 family of op amps features a unique input stage that allows the input voltage to exceed either supply safely without any phase inversion or latch-up; this is called over- voltage protection, or OVP ...

Page 2

... ADA4091-2 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Pin Configuration ............................................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Specifications ............................................................... 3 Absolute Maximum Ratings ............................................................ 6 Thermal Resistance ...................................................................... 6 REVISION HISTORY 7/09—Rev Rev. A Changes to Data Sheet Title ............................................................ 1 Changes to Features .......................................................................... 1 Changes to Table 2 ............................................................................ 3 Changes to Table 3 ............................................................................ 4 Changes to Table 4 ............................................................................ 5 Added Input Current Parameter, Table 5 ...................................... 6 Added New Figure 12 and Figure 13, Renumbered Sequentially ...

Page 3

... −40°C ≤ T ≤ +125° 100 kΩ 0.01% S GBP Φ p-p 0 kHz n Rev Page ADA4091-2 Min Typ Max Unit −250 −40 +250 μV −600 +600 μV −50 −44 +50 nA −55 +55 nA −275 +275 nA −5 −0 − −75 ...

Page 4

... ADA4091 ± Table 3. Parameter INPUT CHARACTERISTICS Offset Voltage Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short-Circuit Limit Open-Loop Impedance POWER SUPPLY Power Supply Rejection Ratio ...

Page 5

... −40°C ≤ T ≤ +125° 100 kΩ GBP Φ kHz e p-p 0 kHz n Rev Page ADA4091-2 Min Typ Max Unit −250 −35 +250 μV −600 +600 μV −55 −50 +55 nA −80 +80 nA −510 +510 nA − −10 +10 nA −140 ...

Page 6

... ADA4091-2 ABSOLUTE MAXIMUM RATINGS Table 5. Parameter Rating Supply Voltage 36 V Input Voltage Refer to the Input Overvoltage Protection section 1 Differential Input Voltage ±V Input Current ±10 mA Output Short-Circuit Duration to GND Indefinite Storage Temperature Range −65°C to +150°C Operating Temperature Range −40°C to +125°C Junction Temperature Range − ...

Page 7

... Figure 5. Dropout Voltage vs. Load Current PHASE GAIN ADA4091 ±1. 1MΩ 35pF L 1k 10k 100k 1M FREQUENCY (Hz) Figure 6. Open-Loop Gain and Phase vs. Frequency 100 ADA4091-2 – ±1. 1MΩ 35pF L –20 10 100 1k 10k 100k FREQUENCY (Hz) Figure 7. Closed-Loop Gain vs. Frequency ADA4091-2 ADA4091 ±1. 100 100 –20 10M 1M 10M ...

Page 8

... ADA4091-2 0 ±1.5V SUPP V = 2.8V p 100kΩ 100 1k 10k 100k FREQUENCY (Hz) Figure 11. Output Swing vs. Frequency 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 ADA4091 25° ±1.5V SY –0 TIME (µs) Figure 12. Positive Overload Recovery 0 –0.2 –0.4 –0.6 –0.8 –1.0 –1.2 –1.4 –1.6 ...

Page 9

... Figure 18. Input Bias Current vs. Common-Mode Voltage 100 ADA4091 – Figure 19. Open-Loop Gain and Phase vs. Frequency Rev Page ADA4091-2 ADA4091 ± 25° 100kΩ 100pF TIME (µs) Figure 17. Small Signal Transient Response = ±5V SY +125°C +85°C +25°C –40°C –4 – ...

Page 10

... Rev Page 100 ADA4091-2 – ± 1MΩ 35pF L –20 10 100 1k 10k 100k FREQUENCY (Hz) Figure 23. Closed-Loop Gain vs. Frequency ADA4091 25° ± TIME (µs) Figure 24. Positive Overload Recovery 1 0 –1 –2 –3 –4 –5 – TIME (µs) Figure 25. Negative Overload Recovery 1M 10M 80 90 ADA4091 25° ...

Page 11

... Rev Page ADA4091-2 PHASE GAIN = ±15V = 1MΩ = 35pF 10k 100k 1M FREQUENCY (Hz) ADA4091 ±15V 25° 100kΩ 100pF 100 125 150 TIME (µs) Figure 30. Large Signal Transient Response ADA4091 ±15V 25° ...

Page 12

... –10 ADA4091 ±15V – 1MΩ 35pF L –30 10 100 1k 10k 100k FREQUENCY (Hz) Figure 35. Closed-Loop Gain vs. Frequency ADA4091 25° ±15V SY – TIME (µs) Figure 36. Positive Overload Recovery 2 0 –2 –4 –6 –8 –10 –12 –14 – TIME (µs) Figure 37. Negative Overload Recovery 1M 10M ...

Page 13

... ADA4091-2 100 ADA4091 10M 0.01 Rev Page ADA4091-2 ADA4091 ±1.5V, ±5V, ±15V SY PSRR+ PSRR– 1k 10k 100k 1M FREQUENCY (Hz) Figure 41. PSRR vs. Frequency = 25° (V) SY Figure 42. Supply Current vs. Supply Voltage = 25°C = ±5V ...

Page 14

... Evaluate each application carefully to make sure that the increase in current does not affect performance. OUTPUT STAGE The output stage in the ADA4091-2 device uses a PNP and an NPN transistor most output stages. However, Q32 and Q33, the output transistors, connect with their collectors to the output pin to achieve the rail-to-rail output swing ...

Page 15

... VOLTAGE (V) Figure 46. DIAC Transfer Characteristic For a worst-case design analysis, consider two cases. The ADA4091-2 has a normal ESD structure from the internal op amp inputs to the supply rails. In addition, it has 42 V DIACs from the external inputs to the rails, as shown in Figure 44. Therefore, two conditions have to be considered to determine which one is the limiting factor. • ...

Page 16

... Temperature Range 1 ADA4091-2ARZ-R2 −40°C to +125°C 1 ADA4091-2ARZ-R7 −40°C to +125°C 1 ADA4091-2ARZ-RL −40°C to +125° RoHS Compliant Part. ©2008–2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 5.00 (0.1968) 4.80 (0.1890) ...

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