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AD8691AKSZ-REEL7

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
Low Cost, Low Noise, CMOS,
RRO Operational Amplifiers
Data Sheet
AD8691/AD8692/AD8694
Rev. F 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 ©2004–2013 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
FEATURES
Offset voltage: 400 µV typical
Low offset voltage drift: 6 µV/°C maximum (AD8692/AD8694)
Very low input bias currents: 1 pA maximum
Low noise: 8 nV/√Hz
Low distortion: 0.0006%
Wide bandwidth: 10 MHz
Unity-gain stable
Single-supply operation: 2.7 V to 6 V
Qualified for automotive applications
APPLICATIONS
Photodiode amplification
Battery-powered instrumentation
Medical instruments
Multipole filters
Sensors
Portable audio devices
GENERAL DESCRIPTION
The AD8691, AD8692, and AD8694 are low cost, single, dual,
and quad rail-to-rail output, single-supply amplifiers featuring
low offset and input voltages, low current noise, and wide signal
bandwidth. The combination of low offset, low noise, very low
input bias currents, and high speed make these amplifiers useful
in a wide variety of applications. Filters, integrators, photodiode
amplifiers, and high impedance sensors all benefit from this
combination of performance features. Audio and other ac
applications benefit from the wide bandwidth and low
distortion of these devices.
Applications for these amplifiers include power amplifier (PA)
controls, laser diode control loops, portable and loop-powered
instrumentation, audio amplification for portable devices, and
ASIC input and output amplifiers.
The small SC70 and TSOT package options for the AD8691
allow it to be placed next to sensors, thereby reducing external
noise pickup.
The AD8691, AD8692, and AD8694 are specified over the
extended industrial temperature range of −40°C to +125°C.
The AD8691 single is available in 5-lead SC70 and 5-lead TSOT
packages. The AD8692 dual is available in 8-lead MSOP and
narrow SOIC surface-mount packages. The AD8694 quad is
available in 14-lead TSSOP and narrow 14-lead SOIC packages.
See the Ordering Guide section for automotive grades.
PIN CONFIGURATIONS
OUT
1
+IN
3
V–
2
V+
5
–IN
4
AD8691
TOP VIEW
(Not to Scale)
04991-030
Figure 1. 5-Lead TSOT
OUT A
1
V–
2
+IN A
3
V+
5
–IN
4
AD8691
04991-031
Figure 2. 5-Lead SC70
04991-134
OUT A
1
–IN A
2
+IN A
3
V–
4
V+
8
OUT B
7
–IN B
6
+IN B
5
AD8692
TOP VIEW
(Not to Scale)
Figure 3. 8-Lead SOIC and 8-Lead MSOP
04991-156
1
2
3
4
5
6
7
AD8694
–IN A
+IN A
V+
OUT B
–IN B
+IN B
OUT A
14
13
12
11
10
9
8
–IN D
+IN D
V–
OUT C
–IN C
+IN C
OUT D
TOP VIEW
(Not to Scale)
Figure 4. 14-Lead SOIC and 14-Lead TSSOP
AD8691/AD8692/AD8694 Data Sheet
Rev. F | Page 2 of 16
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Pin Configurations ........................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Electrical Characteristics ............................................................. 3
Absolute Maximum Ratings ............................................................5
Thermal Characteristics ...............................................................5
ESD Caution...................................................................................5
Typical Performance Characteristics ..............................................6
Outline Dimensions ....................................................................... 11
Ordering Guide .......................................................................... 14
Automotive Products ................................................................. 14
REVISION HISTORY
9/13—Re v. E to Re v. F
Changes to Figure 3 and Figure 4 ................................................... 1
Delete Figure 4 and Figure 5; Renumbered Sequentially ............ 1
Changes to Ordering Guide .......................................................... 14
8/11—Re v. D to Rev. E
Changes to Figure 20 ........................................................................ 8
11/10—Rev. C to Rev. D
Changes to Features Section and General Descriptions
Section ................................................................................................ 1
Updated Outline Dimensions ....................................................... 11
Changes to Ordering Guide .......................................................... 14
Added Automotive Products Section .......................................... 14
5/07—Re v. B to Re v. C
Change to Figure 1 ........................................................................... 1
Changes to Large Signal Voltage Gain Values in Table 1 ............ 3
Change to Phase Margin Symbol in Table 1 ................................. 3
Change to T
A
Value for Table 2 ....................................................... 4
Changes to Large Signal Voltage Gain Values in Table 2 ............ 4
Change to Phase Margin Symbol in Table 2 ................................. 4
Changes to Table 4 ............................................................................ 5
Changes to Outline Dimensions ................................................... 11
Changes to Ordering Guide .......................................................... 12
3/05—Rev. A to Rev. B
Added AD8694 ................................................................... Universal
1/05—Re v. 0 to Re v. A
Added AD8691 ................................................................... Universal
Changes to Features .......................................................................... 1
Added Figure 1 and Figure 2 ............................................................ 1
Changes to Electrical Characteristics ............................................. 3
Changes to Figure 6 caption ............................................................. 6
Changes to Figure 9 ........................................................................... 6
Updated Outline Dimensions ....................................................... 11
Changes to Ordering Guide .......................................................... 11
10/04—Revision 0: Initial Version
Data Sheet AD8691/AD8692/AD8694
Rev. F | Page 3 of 16
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
V
S
= 2.7 V, V
CM
= V
S
/2, T
A
= 25°C, unless otherwise noted.
Table 1.
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage V
OS
V
CM
= −0.3 V to +1.6 V 0.4 2.0 mV
V
CM
= −0.1 V to +1.6 V; −40°C < T
A
< +125°C 3.0 mV
I
B
0.2
1
pA
−40°C < T
A
< +85°C 50 pA
−40°C < T
A
< +125°C 260 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 −0.3 +1.6 V
Common-Mode Rejection Ratio CMRR V
CM
= −0.3 V to +1.6 V 68 90 dB
V
CM
= −0.1 V to +1.6 V; −40°C < T
A
< +125°C 60 85 dB
Large Signal Voltage Gain A
VO
AD8691/AD8692 R
L
= 2 kΩ, V
O
= 0.5 V to 2.2 V 90 250 V/mV
R
L
= 2 kΩ, V
O
= 0.5 V to 2.2 V
60
V/mV
Offset Voltage Drift ∆V
OS
/∆T
AD8691 2 12 µV/°C
AD8692/AD8694 1.3 6 µV/°C
INPUT CAPACITANCE
Common-Mode Input Capacitance C
CM
5 pF
Differential Input Capacitance C
DM
2.5 pF
OUTPUT CHARACTERISTICS
Output Voltage High V
OH
I
L
= 1 mA 2.64 2.66 V
−40°C < T
A
< +125°C 2.6 V
Output Voltage Low V
OL
I
L
= 1 mA 25 40 mV
−40°C < T
A
< +125°C
60
mV
Short-Circuit Current I
SC
±20 mA
Closed-Loop Output Impedance Z
OUT
f = 1 MHz, A
V
= 1 12 Ω
Power Supply Rejection Ratio PSRR V
S
= 2.7 V to 5.5 V 80 95 dB
−40°C < T
A
< +125°C 75 95 dB
Supply Current/Amplifier I
SY
V
O
= 0 V 0.85 0.95 mA
−40°C < T
A
< +125°C 1.2 mA
DYNAMIC PERFORMANCE
Slew Rate SR R
L
= 2 kΩ 5 V/µs
Settling Time t
S
To 0.01% 1 µs
Gain Bandwidth Product GBP 10 MHz
Phase Margin Ø
m
60 Degrees
Total Harmonic Distortion + Noise THD + N G = 1, R
L
= 600 Ω, f = 1 kHz, V
O
= 250 mV p-p 0.003 %
NOISE PERFORMANCE
Voltage Noise e
n p-p
f = 0.1 Hz to 10 Hz 1.6 3.0 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 0.05 pA/√Hz
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

AD8691AKSZ-REEL7

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Precision Amplifiers Low Noise SGL CMOS RRO
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