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AD8608ARUZ-REEL ADI芯片 电子元器件中文版规格手册.pdf
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AD8608ARUZ-REEL ADI芯片 电子元器件中文版规格手册
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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.
Tel: 781.329.4700 ©2002–2017 Analog Devices, Inc. All rights reserved.
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
1
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.
1
Protected by U.S. Patent No. 5,969,657.
PIN CONFIGURATIONS
1
2
3
5
4
–IN
+IN
V+
OUT
AD8605
TOP VIEW
(Not to Scale)
V–
02731-001
02731-057
TOP VIEW
(BALL SIDE DOWN)
BALL
A
1
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
1
3
5
4
2
TOP VIEW
(BUMP SIDE DOWN)
02731-006
–IN A
+IN A
V+
+IN B
–IN B
O
UT B
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
OUT A
1
2
3
4
5
6
7
14
13
12
11
10
9
8
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+
18
O
UT A
45
02731-003
AD8606
TOP VIEW
(Not to Scale)
OUT A
–IN A
+IN A
V+
+IN B
–IN B
O
UT B
–IN D
+IN D
V–
OUT D
–IN C
OUT C
+IN C
14
8
1
7
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
V
S
= 5 V, V
CM
= V
S
/2, T
A
= 25°C, unless otherwise noted.
Table 1.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage V
OS
AD8605/AD8606 (Except WLCSP) V
S
= 3.5 V, V
CM
= 3 V 20 65 µV
AD8608 V
S
= 3.5 V, V
CM
= 2.7 V 20 75 µV
AD8605/AD8606/AD8608 V
S
= 5 V, V
CM
= 0 V to 5 V 80 300 µV
−40°C < T
A
< +125°C 750 µV
Input Bias Current
I
B
0.2
1
pA
AD8605/AD8606 −40°C < T
A
< +85°C 50 pA
AD8605/AD8606 −40°C < T
A
< +125°C 250 pA
AD8608 −40°C < T
A
< +85°C 100 pA
AD8608 −40°C < T
A
< +125°C 300 pA
Input Offset Current I
OS
0.1 0.5 pA
−40°C < T
A
< +85°C 20 pA
−40°C < T
A
< +125°C 75 pA
Input Voltage Range 0 5 V
Common-Mode Rejection Ratio CMRR V
CM
= 0 V to 5 V 85 100 dB
−40°C < T
A
< +125°C 75 90 dB
Large Signal Voltage Gain A
VO
R
L
= 2 kΩ, V
O
= 0.5 V to 4.5 V 300 1000 V/mV
Offset Voltage Drift
AD8605/AD8606 ΔV
OS
/ΔT −40°C < T
A
< +125°C 1 4.5 µV/°C
AD8608 ΔV
OS
/ΔT −40°C < T
A
< +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
OH
I
L
= 1 mA 4.96 4.98 V
I
L
= 10 mA 4.7 4.79 V
−40°C < T
A
< +125°C 4.6 V
Output Voltage Low V
OL
I
L
= 1 mA 20 40 mV
I
L
= 10 mA 170 210 mV
−40°C < T
A
< +125°C 290 mV
Output Current I
OUT
±80 mA
Closed-Loop Output Impedance Z
OUT
f = 1 MHz, A
V
= 1 1 Ω
POWER SUPPLY
Power Supply Rejection Ratio PSRR
AD8605/AD8606 V
S
= 2.7 V to 5.5 V 80 95 dB
AD8605/AD8606 WLCSP V
S
= 2.7 V to 5.5 V 75 92 dB
AD8608 V
S
= 2.7 V to 5.5 V 77 92 dB
−40°C < T
A
< +125°C 70 90 dB
Supply Current/Amplifier I
SY
I
OUT
= 0 mA 1 1.2 mA
−40°C < T
A
< +125°C 1.4 mA
DYNAMIC PERFORMANCE
Slew Rate SR R
L
= 2 kΩ, C
L
= 16 pF 5 V/µs
Settling Time t
S
To 0.01%, 0 V to 2 V step, A
V
= 1 <1 µs
Unity Gain Bandwidth Product GBP 10 MHz
Phase Margin
Φ
M
65
Degrees
Data Sheet AD8605/AD8606/AD8608
Rev. O | Page 5 of 24
Parameter Symbol Conditions Min Typ Max Unit
NOISE PERFORMANCE
Peak-to-Peak Noise e
n
p-p f = 0.1 Hz to 10 Hz 2.3 3.5 µV p-p
Voltage Noise Density e
n
f = 1 kHz 8 12 nV/√Hz
e
n
f = 10 kHz 6.5 nV/√Hz
Current Noise Density
i
n
f = 1 kHz
0.01
pA/√Hz
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