Analog Devices AD8091 2 b Datasheet
–
V
Low Cost, High Speed
FEATURES
Low cost single (AD8091), dual (AD8092) amplifiers
Fully specified at +3 V, +5 V, and ±5 V supplies
Single-supply operation
Output swings to within 25 mV of either rail
High-speed and fast settling on 5 V
110 MHz, −3 dB bandwidth (G = +1)
145 V/µs slew rate
50 ns settling time to 0.1%
Good video specifications (G = +2)
Gain flatness of 0.1 dB to 20 MHz; R
0.03% differential gain error; R
0.03° differential phase error; R
Low distortion
−80 dBc total harmonic @ 1 MHz; R
Outstanding load drive capability
Drives 45 mA, 0.5 V from supply rails
Drives 50 pF capacitive load (G = +1)
Low power of 4.4 mA/Amplifier
APPLICATIONS
Coaxial cable drivers
Active filters
Video switchers
Professional cameras
CCD imaging systems
CDs/DVDs
GENERAL DESCRIPTION
L
= 1 kΩ
L
= 1 kΩ
L
= 100 Ω
L
= 150 Ω
Rail-to-Rail Amplifiers
AD8091/AD8092
CONNECTION DIAGRAMS
NC
1
AD8091
–IN
2
3
+IN
V
4
S
NC = NO CONNECT
Figure 1. SOIC-8 (R-8)
AD8091
1
OUT
2
–V
S
+IN
3
Figure 2. SOT23-5 (RT-5)
AD8092
1
OUT1
–IN1
2
3
+IN1
–V
4
S
NC = NO CONNECT
Figure 3. MSOP-8 and SOIC-8 (RM-8, R-8)
NC
8
+V
7
S
6
V
OUT
NC
5
02859-001
+V
5
S
–IN
4
02859-003
8
+V
S
OUT
7
6
–IN2
5
+IN2
02859-002
The AD8091 (single) and AD8092 (dual) are low cost, voltage
feedback, high speed amplifiers designed to operate on +3 V,
+5 V, or ±5 V supplies. They have true single-supply capability,
with an input voltage range extending 200 mV below the
The AD8091/AD8092 offer a low power supply current and can
operate on a single 3 V power supply. These features are ideally
suited for portable and battery-powered applications where size
and power are critical.
negative rail and within 1 V of the positive rail.
The wide bandwidth and fast slew rate make these amplifiers
Despite their low cost, the AD8091/AD8092 provide excellent
overall performance and versatility. The output voltage swing
extends to within 25 mV of each rail, providing the maximum
useful in many general-purpose, high speed applications where
dual power supplies of up to ±6 V and single supplies from +3
V to +12 V are needed.
output dynamic range with excellent overdrive recovery. This
makes the AD8091/AD8092 useful for video electronics, such
as cameras, video switchers, or any high speed portable
equipment. Low distortion and fast settling make them ideal for
This low cost performance is offered in an 8-lead SOIC
(AD8091/AD8092), along with a tiny SOT23-5 (AD8091) and a
MSOP (AD8092).
active filter applications.
Rev. B
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
Fax: 781.461.3113 © 2005 Analog Devices, Inc. All rights reserved.
www.analog.com
A8091/AD8092
TABLE OF CONTENTS
Specifications..................................................................................... 3
Input-to-Output Coupling ........................................................ 13
Absolute Maximum Ratings............................................................ 7
Maximum Power Dissipation ..................................................... 7
ESD Caution.................................................................................. 7
Typical Performance Characteristics ............................................. 9
Layout, Grounding, and Bypassing Considerations ..................13
Power Supply Bypassing ............................................................13
Grounding ................................................................................... 13
Input Capacitance....................................................................... 13
REVISION HISTORY
3/05—Rev. A to Rev. B
Changes to Format ............................................................. Universal
Changes to Features.......................................................................... 1
Updated Outline Dimensions....................................................... 17
Changes to Ordering Guide.......................................................... 18
5/02–Rev. 0 to Rev. A
Edits to Product Description ...........................................................1
Edit to TPC 6 .....................................................................................7
Edits to TPCs 21–24........................................................................10
Edits to Figure 3...............................................................................11
Driving Capacitive Loads.............................................................. 14
Overdrive Recovery ................................................................... 14
Active Filters ............................................................................... 14
Sync Stripper ............................................................................... 15
Single-Supply Composite Video Line Driver ......................... 15
Outline Dimensions ....................................................................... 17
Ordering Guide .......................................................................... 18
2/02—Revision 0: Initial Version
Rev. B | Page 2 of 20
AD8091/AD8092
SPECIFICATIONS
TA = 25°C, VS = 5 V, RL = 2 kΩ to 2.5 V, unless otherwise noted.
Table 1.
AD8091A/AD8092A
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth G = +1, VO = 0.2 V p-p 70 110 MHz
G = −1, +2, VO = 0.2 V p-p 50 MHz
Bandwidth for 0.1 dB Flatness
G = +2, V
= 150 Ω to 2.5 V, RF = 806 Ω
R
L
= 0.2 V p-p,
O
Slew Rate G = −1, VO = 2 V step 100 145 V/µs
Full Power Response G = +1, VO = 2 V p-p 35 MHz
Settling Time to 0.1% G = −1, VO = 2 V step 50 ns
NOISE/DISTORTION PERFORMANCE
Total Harmonic Distortion (See Figure 11) fC = 5 MHz, VO = 2 V p-p, G = +2 −67 dB
Input Voltage Noise f = 10 kHz 16 nV/√Hz
Input Current Noise f = 10 kHz 850 fA/√Hz
Differential Gain Error (NTSC) G = +2, RL = 150 Ω to 2.5 V 0.09 %
R
= 1 kΩ to 2.5 V 0.03 %
L
Differential Phase Error (NTSC) G = +2, RL = 150 Ω to 2.5 V 0.19 Degrees
R
= 1 kΩ to 2.5 V 0.03 Degrees
L
Crosstalk f = 5 MHz, G = +2 −60 dB
DC PERFORMANCE
Input Offset Voltage 1.7 10 mV
T
MIN
to T
MAX
Offset Drift 10 µV/°C
Input Bias Current 1.4 2.5 µA
T
MIN
to T
MAX
Input Offset Current 0.1 0.75 µA
Open-Loop Gain RL = 2 kΩ to 2.5 V 86 98 dB
T
R
T
to T
MIN
MAX
= 150 Ω to 2.5 V 76 82 dB
L
to T
MIN
MAX
INPUT CHARACTERISTICS
Input Resistance 290 kΩ
Input Capacitance 1.4 pF
Input Common-Mode Voltage Range −0.2 to +4 V
Common-Mode Rejection Ratio VCM = 0 V to 3.5 V 72 88 dB
OUTPUT CHARACTERISTICS
Output Voltage Swing RL = 10 kΩ to 2.5 V 0.015 to 4.985 V
R
R
Output Current V
T
= 2 kΩ to 2.5 V 0.100 to 4.900 0.025 to 4.975 V
L
= 150 Ω to 2.5 V 0.300 to 4.625 0.200 to 4.800 V
L
= 0.5 V to 4.5 V 45 mA
OUT
to T
MIN
MAX
Short-Circuit Current Sourcing 80 mA
Sinking 130 mA
Capacitive Load Drive G = +1 50 pF
POWER SUPPLY
Operating Range 3 12 V
Quiescent Current/Amplifier 4.4 5 mA
Power Supply Rejection Ratio ∆VS = ±1 V 70 80 dB
OPERATING TEMPERATURE RANGE −40 +85 °C
20 MHz
25 mV
3.25 µA
96 dB
78 dB
45 mA
Rev. B | Page 3 of 20
A8091/AD8092
TA = 25°C, VS = +3 V, RL = 2 kΩ to +1.5 V, unless otherwise noted.
Table 2.
AD8091A/AD8092A
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth G = +1, VO = 0.2 V p-p 70 110 MHz
G = −1, +2, VO = 0.2 V p-p 50 MHz
Bandwidth for 0.1 dB Flatness
G = +2, V
R
= 150 Ω to 2.5 V, RF = 402 Ω
L
= 0.2 V p-p,
O
Slew Rate G = −1, VO = 2 V step 90 135 V/µs
Full Power Response G = +1, VO = 1 V p-p 65 MHz
Settling Time to 0.1% G = −1, VO = 2 V step 55 ns
NOISE/DISTORTION PERFORMANCE
Total Harmonic Distortion (see Figure 11)
= 5 MHz, VO = 2 V p-p, G = −1,
f
C
= 100 Ω to 1.5 V
R
L
Input Voltage Noise f = 10 kHz 16 nV/√Hz
Input Current Noise f = 10 kHz 600 fA/√Hz
Differential Gain Error (NTSC) G = +2, VCM = 1 V
R
R
= 150 Ω to 1.5 V 0.11 %
L
= 1 kΩ to 1.5 V 0.09 %
L
Differential Phase Error (NTSC) G = +2, VCM = 1 V
R
R
= 150 Ω to 1.5 V 0.24 Degrees
L
= 1 kΩ to 1.5 V 0.10 Degrees
L
Crosstalk f = 5 MHz, G = +2 −60 dB
DC PERFORMANCE
Input Offset Voltage 1.6 10 mV
T
MIN
to T
MAX
Offset Drift 10 µV/°C
Input Bias Current 1.3 2.6 µA
T
MIN
to T
MAX
Input Offset Current 0.15 0.8 µA
Open-Loop Gain RL = 2 kΩ 80 96 dB
T
R
T
to T
MIN
MAX
= 150 Ω 74 82 dB
L
to T
MIN
MAX
INPUT CHARACTERISTICS
Input Resistance 290 kΩ
Input Capacitance 1.4 pF
Input Common-Mode Voltage Range −0.2 to +2.0 V
Common-Mode Rejection Ratio VCM = 0 V to 1.5 V 72 88 dB
OUTPUT CHARACTERISTICS
Output Voltage Swing RL = 10 kΩ to 1.5 V 0.01 to 2.99 V
R
R
Output Current V
T
= 2 kΩ to 1.5 V 0.075 to 2.9 0.02 to 2.98 V
L
= 150 Ω to 1.5 V 0.20 to 2.75 0.125 to 2.875 V
L
= 0.5 V to 2.5 V 45 mA
OUT
to T
MIN
MAX
Short Circuit Current Sourcing 60 mA
Sinking 90 mA
Capacitive Load Drive G = +1 45 pF
17 MHz
−47 dB
25 mV
3.25 µA
94 dB
76 dB
45 mA
Rev. B | Page 4 of 20
AD8091/AD8092
AD8091A/AD8092A
Parameter Conditions Min Typ Max Unit
POWER SUPPLY
Operating Range 3 12 V
Quiescent Current/Amplifier 4.2 4.8 mA
Power Supply Rejection Ratio ∆VS = +0.5 V 68 80 dB
OPERATING TEMPERATURE RANGE −40 +85 °C
Rev. B | Page 5 of 20
A8091/AD8092
TA = 25°C, VS = ±5 V, RL = 2 kΩ to ground, unless otherwise noted.
Table 3.
AD8091A/AD8092A
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth G = +1, VO = 0.2 V p-p 70 110 MHz
G = −1, +2, VO = 0.2 V p-p 50 MHz
Bandwidth for 0.1 dB Flatness
G = +2, V
= 150 Ω, RF = 1.1 kΩ
R
L
= 0.2 V p-p,
O
Slew Rate G = −1, VO = 2 V step 105 170 V/µs
Full Power Response G = +1, VO = 2 V p-p 40 MHz
Settling Time to 0.1% G = −1, VO = 2 V step 50 ns
NOISE/DISTORTION PERFORMANCE
Total Harmonic Distortion fC = 5 MHz, VO = 2 V p-p, G = +2 −71 dB
Input Voltage Noise f = 10 kHz 16 nV/√Hz
Input Current Noise f = 10 kHz 900 fA/√Hz
Differential Gain Error (NTSC) G = +2, RL = 150 Ω 0.02 %
R
= 1 kΩ 0.02 %
L
Differential Phase Error (NTSC) G = +2, RL = 150 Ω 0.11 Degrees
R
= 1 kΩ 0.02 Degrees
L
Crosstalk f = 5 MHz, G = +2 −60 dB
DC PERFORMANCE
Input Offset Voltage 1.8 11 mV
T
MIN
to T
MAX
Offset Drift 10 µV/°C
Input Bias Current 1.4 2.6 µA
T
MIN
to T
MAX
Input Offset Current 0.1 0.75 µA
Open-Loop Gain RL = 2 kΩ 88 96 dB
T
R
T
to T
MIN
MAX
= 150 Ω 78 82 dB
L
to T
MIN
MAX
INPUT CHARACTERISTICS
Input Resistance 290 kΩ
Input Capacitance 1.4 pF
Input Common-Mode Voltage Range −5.2 to +4.0 V
Common-Mode Rejection Ratio VCM = −5 V to +3.5 V 72 88 dB
OUTPUT CHARACTERISTICS
Output Voltage Swing RL = 10 kΩ −4.98 to +4.98 V
R
R
Output Current V
T
= 2 kΩ −4.85 to +4.85 −4.97 to +4.97 V
L
= 150 Ω −4.45 to +4.30 −4.60 to +4.60 V
L
= −4.5 V to +4.5 V 45 mA
OUT
to T
MIN
MAX
Short Circuit Current Sourcing 100 mA
Sinking 160 mA
Capacitive Load Drive G = +1 (AD8091/AD8092) 50 pF
POWER SUPPLY
Operating Range 3 12 V
Quiescent Current/Amplifier 4.8 5.5 mA
Power Supply Rejection Ratio ∆VS = ±1 V 68 80 dB
OPERATING TEMPERATURE RANGE −40 +85 °C
20 MHz
27 mV
3.5 µA
96 dB
80 dB
45 mA
Rev. B | Page 6 of 20
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