AD8591 Analog Devices, AD8591 Datasheet

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AD8591

Manufacturer Part Number
AD8591
Description
Manufacturer
Analog Devices
Datasheet

Specifications of AD8591

Vcc-vee
2.5V to 6V
Isy Per Amplifier
1.25mA
Packages
SOT
-3db Bandwidth
5MHz
Slew Rate
3.5V/µs
Vos
25mV
Ib
5pA
# Opamps Per Pkg
1
Input Noise (nv/rthz)
30nV/rtHz

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FEATURES
Single-supply operation: 2.5 V to 6 V
High output current: ±250 mA
Extremely low shutdown supply current: 100 nA
Low supply current: 750 μA/Amp
Wide bandwidth: 3 MHz
Slew rate: 5 V/μs
No phase reversal
Very low input bias current
High impedance outputs when in shutdown mode
Unity-gain stable
APPLICATIONS
Mobile communication handset audio
PC audio
PCMCIA/modem line driving
Battery-powered instrumentation
Data acquisition
ASIC input or output amplifiers
LCD display reference level drivers
GENERAL DESCRIPTION
The AD8591, AD8592, and AD8594 are single, dual, and quad
rail-to-rail, input and output single-supply amplifiers featuring
250 mA output drive current and a power saving shutdown mode.
The AD8592 includes an independent shutdown function for
each amplifier. When both amplifiers are in shutdown mode,
the total supply current is reduced to less than 1 μA. The AD8591
and AD8594 include a single master shutdown function that
reduces the total supply current to less than 1 μA. All amplifier
outputs are in a high impedance state when in shutdown mode.
These amplifiers have very low input bias currents, making them
suitable for integrators and diode amplification. Outputs are stable
with virtually any capacitive load. Supply current is less than
750 μA per amplifier in active mode.
Applications for these amplifiers include audio amplification for
portable computers, portable phone headsets, sound ports, sound
cards, and set-top boxes. The AD859x family is capable of driving
heavy capacitive loads, such as LCD panel reference levels.
The ability to swing rail to rail at both the input and output enables
designers to buffer CMOS DACs, ASICs, and other wide output
swing devices in single-supply systems.
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. 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.
CMOS Single-Supply, Rail-to-Rail Input/Output
Operational Amplifiers with Shutdown
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The AD8591, AD8592, and AD8594 are specified over the
industrial temperature range (−40°C to +85°C). The AD8591,
single, is available in the tiny 6-lead SOT-23 package. The AD8592,
dual, is available in the 10-lead surface-mount MSOP package. The
AD8594, quad, is available in 16-lead narrow SOIC and 16-lead
TSSOP packages.
AD8591/AD8592/AD8594
Figure 3. 16-Lead Narrow SOIC (R Suffix)
OUT A
OUT B
OUT A
OUT A
OUT B
–IN A
+IN A
+IN B
–IN B
OUT A
+IN A
Figure 2. 10-Lead MSOP (RM Suffix)
Figure 4. 16-Lead TSSOP (RU Suffix)
–IN A
PIN CONFIGURATIONS
+IN A
+IN B
Figure 1. 6-Lead SOT-23 (RJ Suffix)
–IN A
–IN B
SDA
+IN A
NC
V+
V–
NC
V+
V–
1
2
3
4
5
6
7
8
1
2
3
4
5
1
2
3
4
5
6
7
8
NC = NO CONNECT
©2009 Analog Devices, Inc. All rights reserved.
NC = NO CONNECT
1
2
3
(Not to Scale)
(Not to Scale)
(Not to Scale)
(Not to Scale)
AD 8594
AD 8592
TOP VIEW
AD 8594
TOP VIEW
TOP VIEW
AD 8591
TOP VIEW
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10
6
5
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OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
SD
V+
OUT B
–IN B
+IN B
V+
SD
–IN A
SDB
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
SD
www.analog.com

Related parts for AD8591

AD8591 Summary of contents

Page 1

... The AD8592 includes an independent shutdown function for each amplifier. When both amplifiers are in shutdown mode, the total supply current is reduced to less than 1 μA. The AD8591 and AD8594 include a single master shutdown function that reduces the total supply current to less than 1 μA. All amplifier outputs are in a high impedance state when in shutdown mode ...

Page 2

... Output Phase Reversal ............................................................... 11 REVISION HISTORY 1/09—Rev Rev. B Updated Format .................................................................. Universal Changes to Table 1 ............................................................................ 3 Changes to Table 2 ............................................................................ 4 Deleted Spice Model for AD8591/AD8592/AD8594 Amplifiers Sections ............................................................................................ 12 Changes to PC98-Compliant Headphone/Speaker Amplifier Section and Figure 38 ..................................................................... 12 Changes to Figure 39 ...................................................................... 13 Changes to Figure 42 and Figure 43 ............................................. 14 Updated Outline Dimensions ....................................................... 15 Changes to Ordering Guide .......................................................... 16   ...

Page 3

... T < +85° kΩ 0.01% S GBP Φ kHz kΩ kHz kHz kHz n Rev Page AD8591/AD8592/AD8594 Min Typ Max Unit 2 ...

Page 4

... AD8591/AD8592/AD8594 25°C, unless otherwise noted Table 2. 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 ...

Page 5

... Package Type Observe Derating Curves 6-Lead SOT-23 (RJ) −65°C to +150°C 10-Lead MSOP (RM) −40°C to +85°C 16-Lead SOIC (R) −65°C to +150°C 16-Lead TSSOP (RU) 300°C ESD CAUTION Rev Page AD8591/AD8592/AD8594 θ θ Unit JA JC 230 92 °C/W 200 44 °C/W ...

Page 6

... AD8591/AD8592/AD8594 TYPICAL PERFORMANCE CHARACTERISTICS 2. 25°C A 100 SOURCE SINK 10 1 0.1 0.01 0 LOAD CURRENT (mA) Figure 5. Output Voltage to Supply Rail vs. Load Current 10k 25° 100 SINK SOURCE 10 1 0.1 0.01 0 LOAD CURRENT (mA) Figure 6. Output Voltage to Supply Rail vs. Load Current 0.90 0.85 0.80 0. ...

Page 7

... Figure 15. Closed-Loop Output Voltage Swing vs. Frequency LOAD L = 25° 135 180 100M 1k Figure 16. Closed-Loop Output Voltage Swing vs. Frequency Rev Page AD8591/AD8592/AD8594 LOAD 25°C A 10k 100k 1M 10M FREQUENCY (Hz) Figure 14. Open-Loop Gain and Phase vs. Frequency 2kΩ ...

Page 8

... AD8591/AD8592/AD8594 200 25°C A 180 160 140 120 100 10k 100k 1M FREQUENCY (Hz) Figure 17. Closed-Loop Output Impedance vs. Frequency 110 100 10k 100k FREQUENCY (Hz) Figure 18. Common-Mode Rejection Ratio vs. Frequency 140 120 100 80 60 +PSRR 40 –PSRR ...

Page 9

... Figure 25. Large Signal Transient Response 100 100 ±1.35V 2kΩ 25°C A 0.1 0.01 10 Rev Page AD8591/AD8592/AD8594 V = ±2. 2kΩ 25°C A 500mV 500ns Figure 26. Large Signal Transient Response 1V 10µ ±2. +25° ...

Page 10

... AD8591/AD8592/AD8594 100 MARKER 41µV/√Hz Figure 29. Voltage Noise Density vs. Frequency 100 FREQUENCY = 10kHz MARKER 25.9 µV/√Hz Figure 30. Voltage Noise Density vs. Frequency +1000 25°C A FREQUENCY = 1kHz = +1000 V = 25°C A Rev Page 600 500 400 ...

Page 11

... AD8591/AD8592/ AD8594 op amps ideal for portable multimedia and telecommunications applications. Figure 33 shows the simplified schematic for the AD8591/AD8592/ AD8594 amplifiers. Two input differential pairs, consisting of an n-channel pair (M1, M2) and a p-channel pair (M3, M4), provide a rail-to-rail input common-mode range. The outputs of ...

Page 12

... AD8591/AD8592/AD8594 In any application, the absolute maximum junction temperature must be limited to 150°C. If the junction temperature is exceeded, the device could suffer premature failure. If the output voltage and output current are in phase, for example, with a purely resistive load, the power dissipated by the AD859x can be found as ...

Page 13

... Figure 41 (6) shows a schematic of a simple, yet extremely effective, sample- and-hold circuit using a single AD8592 and one capacitor Rev Page AD8591/AD8592/AD8594 R3 100kΩ + +5V R2 2.2kΩ 0.1µF 10kΩ ...

Page 14

... AD8591/AD8592/AD8594 The U1-A amplifier is configured as a unity-gain buffer driving capacitor. The input signal is connected to the noninverting input, and the sample clock controls the shutdown for that amplifier. When the sample clock is high, the U1-A amplifier is active and the output follows V . When the sample clock goes ...

Page 15

... CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. Figure 46. 16-Lead Standard Small Outline Package [SOIC_N] Narrow Body (R-16) Dimensions shown in millimeters and (inches) Rev Page AD8591/AD8592/AD8594 10° 0.60 4° 0.45 0° 0.30 0.80 8° ...

Page 16

... Model Temperature Range AD8591ART-REEL −40°C to +85°C AD8591ART-REEL7 −40°C to +85°C 1 AD8591ARTZ-REEL −40°C to +85°C 1 AD8591ARTZ-REEL7 −40°C to +85°C AD8592ARM-REEL −40°C to +85°C 1 AD8592ARMZ-REEL −40°C to +85°C AD8594AR −40°C to +85°C AD8594AR-REEL −40°C to +85°C AD8594AR-REEL7 − ...

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