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AD8618ARZ-REEL

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
Precision, 20 MHz, CMOS, Rail-to-Rail
Input/Output Operational Amplifiers
Data Sheet
AD8615/AD8616/AD8618
Rev. G 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 ©2004–2014 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
FEATURES
Low offset voltage: 65 μV maximum
Single-supply operation: 2.7 V to 5.0 V
Low noise: 8 nV/√Hz
Wide bandwidth: >20 MHz
Slew rate: 12 V/μs
High output current: 150 mA
No phase reversal
Low input bias current: 1 pA
Low supply current: 2 mA
Unity-gain stable
APPLICATIONS
Barcode scanners
Battery-powered instrumentation
Multipole filters
Sensors
ASIC input or output amplifiers
Audio
Photodiode amplification
GENERAL DESCRIPTION
The AD8615/AD8616/AD8618 are single/dual/quad, rail-to-
rail, input and output, single-supply amplifiers featuring very
low offset voltage, wide signal bandwidth, and low input voltage
and current noise. The parts use a patented trimming technique
that achieves superior precision without laser trimming. The
AD8615/AD8616/AD8618 are fully specified to operate from
2.7 V to 5 V single supplies.
The combination of >20 MHz bandwidth, low offset, low noise,
and low input bias current 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. AC applications benefit from
the wide bandwidth and low distortion. The AD8615/AD8616/
AD8618 offer the highest output drive capability of the DigiTrim®
family, which is excellent for audio line drivers and other low
impedance applications.
Applications for the parts include portable and low powered
instrumentation, audio amplification for portable devices,
portable phone headsets, bar code scanners, and multipole
filters. The ability to swing rail-to-rail at both the input and
output enables designers to buffer CMOS ADCs, DACs, ASICs,
and other wide output swing devices in single-supply systems.
PIN CONFIGURATIONS
AD8615
TOP VIEW
(Not to Scale)
OUT
1
V–
2
+IN
3
V+
–IN
5
4
04648-001
Fig
ure 1. 5-Lead TSOT-23 (UJ-5)
OUT A
1
–IN A
2
+IN A
3
V–
4
V+
8
OUT B
7
–IN B
6
+IN B
5
AD8616
TOP VIEW
(Not to Scale)
04648-002
Fig
ure 2. 8-Lead MSOP (RM-8)
OUT A
1
–IN A
2
+IN A
3
V–
4
V+
8
OUT B
7
–IN B
6
+IN B
5
AD8616
TOP VIEW
(Not to Scale)
04648-003
Fig
ure 3. 8-Lead SOIC (R-8)
AD8618
TOP VIEW
(Not to Scale)
OUT A
OUT D
–IN A –IN D
+IN A +IN D
V+ V–
+IN B +IN C
–IN B –IN C
14
8
1
7
OUT B OUT C
0
4648-004
Figure 4.
14-Lead TSSOP (RU-14)
AD8618
TOP VIEW
(Not to Scale)
OUT A
1
OUT D
14
–IN A
2
–IN D
13
+IN A
3
+IN D
12
V+
4
V–
11
+IN B
5
+IN C
10
–IN B
6
–IN C
9
OUT B
7
OUT C
8
04648-005
Figure 5.
14-Lead SOIC (R-14)
The AD8615/AD8616
/AD8618 are specified over the extended
industrial temperature range (−40°C to +125°C). The AD8615
is available in 5-lead TSOT-23 package. The AD8616 is available
in 8-lead MSOP and narrow SOIC surface-mount packages; the
MSOP version is available in tape and reel only. The AD8618 is
available in 14-lead SOIC and TSSOP packages.
AD8615/AD8616/AD8618 Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Pin Configurations ........................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 5
Thermal Resistance ...................................................................... 5
ESD Caution .................................................................................. 5
Typical Performance Characteristics ............................................. 6
Applications Information .............................................................. 11
Input Overvoltage Protection ................................................... 11
Output Phase Reversal ............................................................... 11
Driving Capacitive Loads .......................................................... 11
Overload Recovery Time .......................................................... 12
D/A Conversion ......................................................................... 12
Low Noise Applications ............................................................. 12
High Speed Photodiode Preamplifier ...................................... 13
Active Filters ............................................................................... 13
Power Dissipation....................................................................... 13
Power Calculations for Varying or Unknown Loads ............. 14
Outline Dimensions ....................................................................... 15
Ordering Guide .......................................................................... 17
REVISION HISTORY
6/14—Re v. F to R ev. G
Changes to Input Overvoltage Protection Section ..................... 11
3/14—Re v. E to Re v. F
Changes to Differential Input Voltage Parameter, Table 3 .......... 5
Updated Outline Dimensions ....................................................... 15
Changes to Ordering Guide .......................................................... 17
9/08—Re v. D to Re v. E
Changes to General Description Section ...................................... 1
Updated Outline Dimensions ....................................................... 15
Changes to Ordering Guide .......................................................... 17
5/08—Rev. C to Rev. D
Changes to Layout ............................................................................ 1
Changes to Figure 38 ...................................................................... 11
Changes to Figure 44 and Figure 45 ............................................. 13
Changes to Layout .......................................................................... 15
Changes to Layout .......................................................................... 16
6/05—Re v. B to Re v. C
Change to Table 1 .............................................................................. 3
Change to Table 2 .............................................................................. 4
Change to Figure 20 .......................................................................... 8
1/05—Rev. A to Rev. B
Added AD8615 ................................................................... Universal
Changes to Figure 12 ......................................................................... 8
Deleted Figure 19; Renumbered Subsequently .............................. 8
Changes to Figure 20 ......................................................................... 9
Changes to Figure 29 ...................................................................... 10
Changes to Figure 31 ...................................................................... 11
Deleted Figure 34; Renumbered Subsequently ........................... 11
Deleted Figure 35; Renumbered Subsequently ........................... 35
4/04—Re v. 0 to Re v. A
Added AD8618 ................................................................... Universal
Updated Outline Dimensions ....................................................... 16
1/04—Revision 0: Initial Version
Rev. G | Page 2 of 20
Data Sheet AD8615/AD8616/AD8618
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, AD8616/AD8618
V
OS
V
S
= 3.5 V at V
CM
= 0.5 V and 3.0 V
23
60
µV
Offset Voltage, AD8615 23 100 µV
V
CM
= 0 V to 5 V 80 500 µV
−40°C < T
A
< +125°C 800 µV
Offset Voltage Drift, AD8616/AD8618 ∆V
OS
/∆T −40°C < T
A
< +125°C 1.5 7 µV/°C
Offset Voltage Drift, AD8615
3
10
µV/°C
Input Bias Current I
B
0.2 1 pA
−40°C < T
A
< +85°C 50 pA
−40°C < T
A
< +125°C 550 pA
Input Offset Current I
OS
0.1 0.5 pA
−40°C < T
A
< +85°C 50 pA
−40°C < T
A
< +125°C
250
pA
Input Voltage Range 0 5 V
Common-Mode Rejection Ratio CMRR V
CM
= 0 V to 4.5 V 80 100 dB
Large Signal Voltage Gain A
VO
R
L
= 2 kΩ, V
O
= 0.5 V to 5 V 105 1500 V/mV
Input Capacitance C
DIFF
2.5 pF
C
CM
6.7 pF
OUTPUT CHARACTERISTICS
Output Voltage High V
OH
I
L
= 1 mA 4.98 4.99 V
I
L
= 10 mA
4.88
4.92
V
−40°C < T
A
< +125°C 4.7 V
Output Voltage Low V
OL
I
L
= 1 mA 7.5 15 mV
I
L
= 10 mA 70 100 mV
−40°C < T
A
< +125°C 200 mV
Output Current I
OUT
±150 mA
Closed-Loop Output Impedance
Z
OUT
f = 1 MHz, A
V
= 1
3
Ω
POWER SUPPLY
Power Supply Rejection Ratio PSRR V
S
= 2.7 V to 5.5 V 70 90 dB
Supply Current per Amplifier
I
SY
V
O
= 0 V
1.7
2
mA
−40°C < T
A
< +125°C 2.5 mA
DYNAMIC PERFORMANCE
Slew Rate SR R
L
= 2 kΩ 12 V/µs
Settling Time t
S
To 0.01% <0.5 µs
Gain Bandwidth Product GBP 24 MHz
Phase Margin Ø
m
63 Degrees
NOISE PERFORMANCE
Peak-to-Peak Noise e
n
p-p 0.1 Hz to 10 Hz 2.4 µV
Voltage Noise Density e
n
f = 1 kHz 10 nV/√Hz
f = 10 kHz 7 nV/√Hz
Current Noise Density
i
n
f = 1 kHz
0.05
pA/√Hz
Channel Separation C
S
f = 10 kHz −115 dB
f = 100 kHz −110 dB
Rev. G | Page 3 of 20
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

AD8618ARZ-REEL

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Description:
Precision Amplifiers Prec 20MHz CMOS Quad RR
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