AD8608 Analog Devices, AD8608 Datasheet

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AD8608

Manufacturer Part Number
AD8608
Description
Precision, Low Noise, CMOS, Rail-to-Rail, Input/Output Operational Amplifier (Quad)
Manufacturer
Analog Devices
Datasheet

Specifications of AD8608

Vcc-vee
2.7V to 6V
Isy Per Amplifier
1.2mA
Packages
SOIC,SOP
-3db Bandwidth
10MHz
Slew Rate
5V/µs
Vos
20µV
Ib
200fA
# Opamps Per Pkg
4
Input Noise (nv/rthz)
6.5nV/rtHz

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Data Sheet
FEATURES
Low offset voltage: 65 µV maximum
Low input bias currents: 1 pA maximum
Low noise: 8 nV/√Hz
Wide bandwidth: 10 MH
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
APPLICATIONS
Photodiode amplification
Battery-powered instrumentation
Multipole filters
Sensors
Barcode scanners
Audio
GENERAL DESCRIPTION
The AD8605, AD8606, and
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
extended industrial temperature range (−40°C to +125°C). The
AD8605
packages. The
8-ball WLSCP, and a narrow SOIC surface-mounted package.
The
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
Rev. L
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.
Protected by U.S. Patent No. 5,969,657.
dual (AD8606)
AD8608
single is available in 5-lead SOT-23 and 5-ball WLCSP
quad is available in a 14-lead TSSOP package and
AD8606
dual is available in an 8-lead MSOP, an
Z
AD8608
AD8608
1
are specified over the
are single, dual, and quad
Precision, Low Noise, CMOS, Rail-to-Rail,
Input/Output Operational Amplifiers
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
OUT A
–IN A
+IN A
Figure 5. 8-Lead MSOP (RM Suffix),
Figure 1. 5-Lead SOT-23 (RJ Suffix)
Figure 3. 5-Ball WLCSP (CB Suffix)
V–
OUT
+IN
V–
8-Lead SOIC_N (R Suffix)
(BUMP SIDE DOWN)
1
2
3
AD8605 ONLY
1
(Not to Scale)
4
(Not to Scale)
AD8606
TOP VIEW
OUT
TOP VIEW
+IN
AD8605
TOP VIEW
AD8605/AD8606/AD8608
3
1
V–
2
–IN
V+
5
4
PIN CONFIGURATIONS
©2002–2012 Analog Devices, Inc. All rights reserved.
8
5
5
4 –IN
V+
V+
OUT B
–IN B
+IN B
OUT A
OUT B
OUT B
OUT A
Figure 6. 14-Lead TSSOP (RU Suffix)
Figure 4. 14-Lead SOIC_N (R Suffix)
+IN B
–IN B
–IN A
+IN A
+IN A
+IN B
–IN B
Figure 2. 8-Ball WLCSP (CB Suffix)
–IN A
V+
V+
1
2
3
4
5
6
7
BALL A1
CORNER
OUTA
–INA
+INA
(BALL SIDE DOWN)
A1
B1
C1
(Not to Scale)
(Not to Scale)
1
7
AD8608
TOP VIEW
AD8608
TOP VIEW
AD8606
TOP VIEW
www.analog.com
V+
A2
V–
C2
14
8
OUTB
–INB
+INB
A3
B3
C3
14
13
12
11
10
9
8
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C

Related parts for AD8608

AD8608 Summary of contents

Page 1

... AD8606 4 –IN TOP VIEW (BALL SIDE DOWN) Figure 2. 8-Ball WLCSP (CB Suffix) OUT – +IN A AD8608 3 12 TOP VIEW (Not to Scale) + –IN 4 – OUT B 7 Figure 4. 14-Lead SOIC_N (R Suffix) OUT – ...

Page 2

... AD8605/AD8606/AD8608 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Pin Configurations ........................................................................... 1 Revision History ............................................................................... 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 ...

Page 3

... Changes to Table 2 ....................................................................... 5 Changes to Table 4 ....................................................................... 7 Updated Outline Dimensions ................................................... 19 Changes to Ordering Guide ...................................................... 21 1/06—Rev Rev. E Changes to Table 1 ....................................................................... 3 Changes to Table 2 ....................................................................... 5 AD8605/AD8606/AD8608 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 5/04— ...

Page 4

... AD8608 AD8608 Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift AD8605/AD8606 AD8608 INPUT CAPACITANCE Common-Mode Input Capacitance Differential Input Capacitance OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Output Current Closed-Loop Output Impedance ...

Page 5

... Data Sheet Parameter NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Current Noise Density Symbol Conditions kHz kHz kHz n Rev Page AD8605/AD8606/AD8608 Min Typ Max Unit 2.3 3.5 µV p nV/√Hz 6.5 nV/√Hz 0.01 pA/√Hz ...

Page 6

... AD8608 AD8608 Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Large Signal Voltage Gain Offset Voltage Drift AD8605/AD8606 AD8608 INPUT CAPACITANCE Common-Mode Input Capacitance Differential Input Capacitance OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Output Current Closed-Loop Output Impedance ...

Page 7

... Data Sheet Parameter NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Current Noise Density Symbol Conditions kHz kHz kHz n Rev Page AD8605/AD8606/AD8608 Min Typ Max Unit 2.3 3.5 µV p nV/√Hz 6.5 nV/√Hz 0.01 pA/√Hz ...

Page 8

... AD8605/AD8606/AD8608 ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Supply Voltage Input Voltage Differential Input Voltage Output Short-Circuit Duration to GND Storage Temperature Range All Packages Operating Temperature Range All Packages Junction Temperature Range All Packages Lead Temperature (Soldering, 60 sec) Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only ...

Page 9

... CM SY 150 100 50 0 –50 –100 –150 –50 – TEMPERATURE (°C) Figure 11. Input Bias Current vs. Temperature 25°C A 100 10 SOURCE SINK 1 0.1 0.001 0.01 0.1 LOAD CURRENT (mA) Figure 12. Output Saturation Voltage vs. Load Current 4.0 4.5 5.0 AD8605 AD8606 AD8608 100 125 1 10 ...

Page 10

... AD8605/AD8606/AD8608 5. 4. 4.90 4.85 4. 10mA LOAD OH 4.75 4.70 –40 –25 – TEMPERATURE (°C) Figure 13. Output Voltage Swing High vs. Temperature 0. 0.20 0.15 0.10 0. –40 –25 – TEMPERATURE (°C) Figure 14. Output Voltage Swing Low vs. Temperature 100 80 60 PHASE –20 –40 – ...

Page 11

... V = 2. 0.5 0 –40 –25 – TEMPERATURE (°C) Figure 21. Supply Current/Amplifier vs. Temperature 1M 10M – 110 125 Rev Page AD8605/AD8606/AD8608 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 SUPPLY VOLTAGE (V) Figure 22. Supply Current/Amplifier vs. Supply Voltage TIME (1s/DIV) Figure 23. 0 Input Voltage Noise V = ± ...

Page 12

... AD8605/AD8606/AD8608 V = ±2. 10kΩ 200pF TIME (400ns/DIV) Figure 25. Large Signal Transient Response 2.5V V OUT –50mV TIME (400ns/DIV) Figure 26. Positive Overload Recovery V = ±2. 10kΩ –100 50mV IN –2.5V 50mV 0V TIME (1µs/DIV) Figure 27. Negative Overload Recovery ...

Page 13

... AD8605 AD8606 0.005 AD8608 75 100 125 Rev Page AD8605/AD8606/AD8608 2. 25°C A 100 SOURCE 10 SINK 1 0.1 0.1 0.001 0.01 1 LOAD CURRENT (mA) Figure 34. Output Saturation Voltage vs. Load Current 1mA LOAD OH – ...

Page 14

... AD8605/AD8606/AD8608 100 80 60 PHASE –20 –40 –60 –80 –100 10k 100k 1M FREQUENCY (Hz) Figure 37. Open-Loop Gain and Phase vs. Frequency 3 2.6V p 25° 2kΩ 1.5 V 1.0 0 10k 100k FREQUENCY (Hz) Figure 38. Closed-Loop Output Voltage Swing vs. Frequency (FPBW) 100 ...

Page 15

... Data Sheet V = ±1.35V S = 10kΩ 200pF TIME (400ns/DIV) Figure 43. Large Signal Transient Response AD8605/AD8606/AD8608 Rev Page ...

Page 16

... Power dissipated causes the die temperature to increase, which can affect the behavior of the IC and the application circuit performance. The absolute maximum junction temperature of the AD8605/ AD8606/AD8608 is 150°C. Exceeding this temperature could damage or destroy the device. The maximum power dissipation of the amplifier is calculated according to − ...

Page 17

... This method does not reduce the maximum output swing of the amplifier. –20 –40 –60 –80 –100 –120 –140 –160 –180 ≈ response to a 200mV Rev Page AD8605/AD8606/AD8608 0 100 1k 10k 100k 1M FREQUENCY (Hz) Figure 47. Channel Separation vs. Frequency TIME (10µs/DIV) Figure 48. AD8606 Capacitive Load Drive Without Snubber ...

Page 18

... AD8605/AD8606/AD8608 Figure 50 shows a scope of the output at the snubber circuit. The overshoot is reduced from over 70% to less than 5%, and the ringing is eliminated by the snubber. Optimum values for R and C are determined experimentally. S TIME (10µs/DIV) Figure 50. Capacitive Load Drive with Snubber Table 5 summarizes a few optimum values for capacitive loads. ...

Page 19

... 20kΩ 1µ AD8606 20kΩ 7 500mV 6 4 Figure 53. Single-Supply Headphone/Speaker Amplifier Rev Page AD8605/AD8606/AD8608 AD8605 has an input bias current MAX π the unity gain frequency of the amplifier. t AD8606 allows it to drive heavy ...

Page 20

... AD8605/AD8606/AD8608 INSTRUMENTATION AMPLIFIERS The low offset voltage and low noise of the ideal amplifier for instrumentation applications. Difference amplifiers are widely used in high accuracy circuits to improve the common-mode rejection ratio. Figure 54 shows a simple difference amplifier. Figure 55 shows the common- mode rejection for a unity gain configuration and for a gain of 10. ...

Page 21

... BSC 1.90 BSC 0.20 MAX 1.45 MAX 0.08 MIN 0.95 MIN SEATING 0.50 MAX PLANE 0.35 MIN COMPLIANT TO JEDEC STANDARDS MO-178-AA Figure 59. 5-Lead Small Outline Transistor Package [SOT-23] (RJ-5) Dimensions shown in millimeters Rev Page AD8605/AD8606/AD8608 0. 0.20 0.50 BOTTOM VIEW (BALL SIDE UP) 0.55 10° 0.45 0.60 5° 0.35 BSC 0° ...

Page 22

... AD8605/AD8606/AD8608 IDENTIFIER 0.25 (0.0098) 0.10 (0.0040) COPLANARITY BALL 1 IDENTIFIER (BALL SIDE DOWN) 3.20 3.00 2.80 5. 3.20 4.90 3.00 4.65 1 2.80 4 PIN 1 0.65 BSC 0.95 15° MAX 0.85 1.10 MAX 0.75 0.15 0.23 6° 0.40 0.05 0.09 0° 0.25 COPLANARITY 0.10 COMPLIANT TO JEDEC STANDARDS MO-187-AA Figure 60. 8-Lead Mini Small Outline Package [MSOP] (RM-8) Dimensions shown in millimeters 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2441) 4.00 (0.1574) 1 5.80 (0.2284) 3.80 (0.1497 ...

Page 23

... Narrow Body (R-14) Dimensions shown in millimeters and (inches) 5.10 5.00 4. 6.40 BSC 1 7 0.65 BSC 1.20 0.20 MAX 0.09 SEATING 0.30 PLANE 0.19 COMPLIANT TO JEDEC STANDARDS MO-153-AB-1 Figure 64. 14-Lead Thin Shrink Small Outline Package [TSSOP] (RU-14) Dimensions shown in millimeters Rev Page AD8605/AD8606/AD8608 0.50 (0.0197) 45° 0.25 (0.0098) 8° 0° 1.27 (0.0500) 0.40 (0.0157) 0.75 8° 0.60 0° 0.45 ...

Page 24

... AD8608ARZ −40°C to +125°C AD8608ARZ-REEL −40°C to +125°C AD8608ARZ-REEL7 −40°C to +125°C AD8608ARUZ −40°C to +125°C AD8608ARUZ-REEL −40°C to +125° RoHS Compliant Part, # denotes RoHS compliant product (except for CB-5-1) may be top or bottom marked. 1 ©2002–2012 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners ...

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