AD8606ARMZ-REELADI芯片电子元器件中文版规格手册.pdf

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Precision, Low Noise, CMOS, Rail-to-Rail,

Input/Output Operational Amplifiers

Data Sheet

AD8605/AD8606/AD8608

Rev. O Document Feedback

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.

Technical Support www.analog.com

FEATURES

Low offset voltage: 65 μV maximum

Low input bias currents: 1 pA maximum

Low noise: 8 nV/√Hz

Wide bandwidth: 10 MHz

High open-loop gain: 1000 V/mV

Unity gain stable

Single-supply operation: 2.7 V to 5.5 V

5-ball WLCSP for single (AD8605) and 8-ball WLCSP for

dual (AD8606)

APPLICATIONS

Photodiode amplification

Battery-powered instrumentation

Multipole filters

Sensors

Barcode scanners

Audio

GENERAL DESCRIPTION

The AD8605, AD8606, and AD8608

are single, dual, and quad

rail-to-rail input and output, single-supply amplifiers. They

feature very low offset voltage, low input voltage and current

noise, and wide signal bandwidth. They use the Analog Devices,

Inc. patented DigiTrim® trimming technique, which achieves

superior precision without laser trimming.

The combination of low offsets, low noise, very low input bias

currents, and high speed makes these amplifiers useful in a

wide variety of applications. Filters, integrators, photodiode

amplifiers, and high impedance sensors all benefit from the

combination of performance features. Audio and other ac

applications benefit from the wide bandwidth and low

distortion. Applications for these amplifiers include optical

control loops, portable and loop-powered instrumentation,

and audio amplification for portable devices.

The AD8605, AD8606, and AD8608 are specified over the

extended industrial temperature range (−40°C to +125°C). e

AD8605 single is available in 5-lead SOT-23 and 5-ball WLCSP

packages. The AD8606 dual is available in an 8-lead MSOP, an

8-ball WLSCP, and a narrow SOIC surface-mounted package.

The AD8608 quad is available in a 14-lead TSSOP package and

a narrow 14-lead SOIC package. The 5-ball and 8-ball WLCSP

offer the smallest available footprint for any surface-mounted

operational amplifier. The WLCSP, SOT-23, MSOP, and TSSOP

versions are available in tape-and-reel only.

Protected by U.S. Patent No. 5,969,657.

PIN CONFIGURATIONS

–IN

+IN

V+

OUT

AD8605

TOP VIEW

(Not to Scale)

V–

02731-001

02731-057

TOP VIEW

(BALL SIDE DOWN)

BALL

CORNER

A1 A2 A3

B1 B3

C1 C2 C3

AD8606

+INA V– +INB

–INA –INB

OUTA V+ OUTB

Figure 1. 5-Lead SOT-23 (RJ Suffix) Figure 2. 8-Ball WLCSP (CB Suffix)

AD8605 ONLY

OUT V+

V–

+IN –IN

TOP VIEW

(BUMP SIDE DOWN)

02731-006

–IN A

+IN A

V+

+IN B

–IN B

UT B

OUT D

–IN D

+IN D

V–

+IN C

–IN C

OUT C

OUT A

02731-004

AD8608

TOP VIEW

(Not to Scale)

Figure 3. 5-Ball WLCSP (CB Suffix) Figure 4. 14-Lead SOIC_N (R Suffix)

–IN A

+IN A

V–

OUT B

–IN B

+IN B

V+

UT A

02731-003

AD8606

TOP VIEW

(Not to Scale)

OUT A

–IN A

+IN A

V+

+IN B

–IN B

UT B

–IN D

+IN D

V–

OUT D

–IN C

OUT C

+IN C

02731-002

AD8608

TOP VIEW

(Not to Scale)

Figure 5. 8-Lead MSOP (RM Suffix),

8-Lead SOIC_N (R Suffix)

Figure 6. 14-Lead TSSOP (RU Suffix)

AD8605/AD8606/AD8608 Data Sheet

Rev. O | Page 2 of 24

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications ....................................................................................... 1

General Description ......................................................................... 1

Pin Configurations ........................................................................... 1

Revision History ............................................................................... 2

5 V Electrical Specifications ............................................................ 4

2.7 V Electrical Specifications ......................................................... 6

Absolute Maximum Ratings ............................................................ 8

ESD Caution .................................................................................. 8

Typical Performance Characteristics ............................................. 9

Applications Information .............................................................. 16

Output Phase Reversal ............................................................... 16

Maximum Power Dissipation ................................................... 16

Input Overvoltage Protection ................................................... 16

THD + Noise ............................................................................... 16

Total Noise Including Source Resistors ................................... 17

Channel Separation .................................................................... 17

Capacitive Load Drive ............................................................... 17

Light Sensitivity .......................................................................... 18

WLCSP Assembly Considerations ........................................... 18

I-V Conversion Applications ........................................................ 19

Photodiode Preamplifier Applications .................................... 19

Audio and PDA Applications ................................................... 19

Instrumentation Amplifiers ...................................................... 20

DAC Conversion ........................................................................ 20

Outline Dimensions ....................................................................... 21

Ordering Guide .......................................................................... 24

REVISION HISTORY

11/2017—Rev. N to Rev. O

Added Figure 44 and Figure 45; Renumbered Sequentially ..... 15

Changes to Figure 51 ...................................................................... 17

Changes to Ordering Guide .......................................................... 24

4/2013—Re

v. M to Rev. N

Changes to Input Overvoltage Section and THD + Noise

Section .............................................................................................. 16

Changes to Total Noise Including Source Resistors Section .......... 17

Updated Outline Dimensions ....................................................... 24

2/2013—Re

v. L to Rev. M

Updated Outline Dimensions ....................................................... 21

Changes to Ordering Guide .......................................................... 24

2/2012—Rev. K to Rev. L

Changed Functional Block Diagrams Section to Pin

Configuration Section ...................................................................... 1

Changes to Figure 11 ........................................................................ 9

Added Figure 33 .............................................................................. 13

8/2011—Re

v. J to Rev. K

Changes to Figure 20 ........................................................................ 2

Updated Outline Dimensions ....................................................... 20

Changes to Ordering Guide .......................................................... 23

8/2010—Re

v. I to Rev. J

Changes to Figure 10 and Figure 11 ............................................... 9

Changes to Figure 15 ...................................................................... 10

Changes to Figure 36 ...................................................................... 13

Changes to Figure 42 ...................................................................... 14

Updated Outline Dimensions ....................................................... 20

Changes to Ordering Guide .......................................................... 23

9/2008—Rev. H to Rev. I

Changes to Input Overvoltage Protection Section..................... 15

Changes to Ordering Guide .......................................................... 22

2/2008—Re

v. G to Rev. H

Changes to Features .......................................................................... 1

Changes to Table 1 ............................................................................. 4

Changes to Table 2 ............................................................................. 6

Changes to Figure 11 ......................................................................... 9

Changes to Figure 13, Figure 14, and Figure 16 Captions ........ 10

Changes to Figure 15, Figure 17, and Figure 18 ......................... 10

Changes to Figure 34 and Figure 35 Captions ............................ 13

Changes to Figure 36 ...................................................................... 13

Changes to Figure 37 Caption ...................................................... 14

Changes to Figure 38 and Figure 41 ............................................ 14

Changes to Figure 45 ...................................................................... 15

Changes to Audio and PDA Applications Section ..................... 18

Changes to Figure 52 ...................................................................... 18

Changes to Ordering Guide .......................................................... 22

10/2007

—Rev. F to Rev. G

Changes to Figure 2 ........................................................................... 1

Updated Outline Dimensions ................................

....................... 20

8/2007—Re

v. E to Rev. F

Added 8-Ball WLCSP Package ......................................... Universal

Changes to Features .......................................................................... 1

Changes to Table 1 ............................................................................. 3

Changes to Table 2 ............................................................................. 5

Changes to Table 4 ............................................................................. 7

Updated Outline Dimensions ....................................................... 19

Changes to Ordering Guide .......................................................... 21

Data Sheet AD8605/AD8606/AD8608

Rev. O | Page 3 of 24

1/2006—Rev. D to Rev. E

Changes to Table 1 ............................................................................ 3

Changes to Table 2 ............................................................................ 5

Changes to Table 4 ............................................................................ 6

Changes to Figure 12 Caption ......................................................... 8

Changes to Figure 26 and Figure 27 Captions............................. 11

Changes to Figure 33 Caption ....................................................... 12

Changes to Figure 44 ...................................................................... 14

Updated Outline Dimensions ........................................................ 19

Changes to Ordering Guide ........................................................... 20

5/2004—Re

v. C to Rev. D

Updated Format.................................................................. Universal

Edit to Light Sensitivity Section .................................................... 16

Updated Outline Dimensions ........................................................ 19

Changes to Ordering Guide ........................................................... 20

7/2003—Re

v. B to Rev. C

Changes to Features .......................................................................... 1

Change to General Description ....................................................... 1

Addition to Functional Block Diagrams ........................................ 1

Addition to Absolute Maximum Ratings ....................................... 4

Addition to Ordering Guide ............................................................ 4

Change to Equation in Maximum Power Dissipation Section ...... 11

Added Light Sensitivity Section .................................................... 12

Added New Figure 8; Renumbered Subsequently ...................... 13

Added New MicroCSP Assembly Considerations Section ........ 13

Changes to Figure 9 ........................................................................ 13

Change to Equation in Photodiode Preamplifier

Applications Section ...................................................................... 13

Changes to Figure 12 ...................................................................... 14

Change to Equation in D/A Conversion Section ........................ 14

Updated Outline Dimensions ....................................................... 15

3/2003—Re

v. A to Rev. B

Changes to Functional Block Diagram .......................................... 1

Changes to Absolute Maximum Ratings........................................ 4

Changes to Ordering Guide ........................................................... 4

Changes to Figure 9 ....................................................................... 13

Updated Outline Dimensions........................................................ 15

11/2002—Rev. 0 to Rev. A

Change to Electrical Characteristics ............................................... 2

Changes to Absolute Maximum Ratings........................................ 4

Changes to Ordering Guide ............................................................ 4

Change to TPC 6 ................................

.............................................. 5

Updated Outline Dimensions........................................................ 15

5/2002—R

evision 0: Initial Version

AD8605/AD8606/AD8608 Data Sheet

Rev. O | Page 4 of 24

5 V ELECTRICAL SPECIFICATIONS

= 5 V, V

= V

/2, T

= 25°C, unless otherwise noted.

Table 1.

Parameter Symbol Conditions Min Typ Max Unit

INPUT CHARACTERISTICS

Offset Voltage V

AD8605/AD8606 (Except WLCSP) V

= 3.5 V, V

= 3 V 20 65 µV

AD8608 V

= 3.5 V, V

= 2.7 V 20 75 µV

AD8605/AD8606/AD8608 V

= 5 V, V

= 0 V to 5 V 80 300 µV

−40°C < T

< +125°C 750 µV

Input Bias Current

0.2

AD8605/AD8606 −40°C < T

< +85°C 50 pA

AD8605/AD8606 −40°C < T

< +125°C 250 pA

AD8608 −40°C < T

< +85°C 100 pA

AD8608 −40°C < T

< +125°C 300 pA

Input Offset Current I

0.1 0.5 pA

−40°C < T

< +85°C 20 pA

−40°C < T

< +125°C 75 pA

Input Voltage Range 0 5 V

Common-Mode Rejection Ratio CMRR V

= 0 V to 5 V 85 100 dB

−40°C < T

< +125°C 75 90 dB

Large Signal Voltage Gain A

= 2 kΩ, V

= 0.5 V to 4.5 V 300 1000 V/mV

Offset Voltage Drift

AD8605/AD8606 ΔV

/ΔT −40°C < T

< +125°C 1 4.5 µV/°C

AD8608 ΔV

/ΔT −40°C < T

< +125°C 1.5 6.0 µV/°C

INPUT CAPACITANCE

Common-Mode Input Capacitance C

COM

8.8 pF

Differential Input Capacitance C

DIFF

2.6 pF

OUTPUT CHARACTERISTICS

Output Voltage High V

= 1 mA 4.96 4.98 V

= 10 mA 4.7 4.79 V

−40°C < T

< +125°C 4.6 V

Output Voltage Low V

= 1 mA 20 40 mV

= 10 mA 170 210 mV

−40°C < T

< +125°C 290 mV

Output Current I

OUT

±80 mA

Closed-Loop Output Impedance Z

OUT

f = 1 MHz, A

= 1 1 Ω

POWER SUPPLY

Power Supply Rejection Ratio PSRR

AD8605/AD8606 V

= 2.7 V to 5.5 V 80 95 dB

AD8605/AD8606 WLCSP V

= 2.7 V to 5.5 V 75 92 dB

AD8608 V

= 2.7 V to 5.5 V 77 92 dB

−40°C < T

< +125°C 70 90 dB

Supply Current/Amplifier I

OUT

= 0 mA 1 1.2 mA

−40°C < T

< +125°C 1.4 mA

DYNAMIC PERFORMANCE

Slew Rate SR R

= 2 kΩ, C

= 16 pF 5 V/µs

Settling Time t

To 0.01%, 0 V to 2 V step, A

= 1 <1 µs

Unity Gain Bandwidth Product GBP 10 MHz

Phase Margin

Degrees

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