160 MHz Rail-to-Rail
Amplifier with Disable
AD8041
FEATURES
Fully Specified for +3 V, +5 V, and 5 V Supplies
Output Swings Rail to Rail
Input Voltage Range Extends 200 mV Below Ground
No Phase Reversal with Inputs 1 V Beyond Supplies
Disable/Power-Down Capability
Low Power of 5.2 mA (26 mW on 5 V)
High Speed and Fast Settling on 5 V:
160 MHz –3 dB Bandwidth (G = +1)
160 V/ s Slew Rate
30 ns Settling Time to 0.1%
Good Video Specifications (R
L
= 150 , G = +2)
Gain Flatness of 0.1 dB to 30 MHz
0.03% Differential Gain Error
0.03 Differential Phase Error
Low Distortion
–69 dBc Worst Harmonic @ 10 MHz
Outstanding Load Drive Capability
Drives 50 mA 0.5 V from Supply Rails
Cap Load Drive of 45 pF
APPLICATIONS
Power Sensitive High Speed Systems
Video Switchers
Distribution Amplifiers
A/D Drivers
Professional Cameras
CCD Imaging Systems
Ultrasound Equipment (Multichannel)
Single-Supply Multiplexer
PRODUCT DESCRIPTION
CONNECTION DIAGRAM
8-Lead PDIP, CERDIP and SOIC
NC 1
–INPUT 2
INPUT 3
–V
S
4
8
DISABLE
7
V
S
6 OUTPUT
AD8041
(Top View)
5 NC
NC = NO CONNECT
The output voltage swing extends to within 50 mV of each rail,
providing the maximum output dynamic range. Additionally, it
features gain flatness of 0.1 dB to 30 MHz while offering differ-
ential gain and phase error of 0.03% and 0.03° on a single 5 V
supply. This makes the AD8041 ideal for professional video
electronics such as cameras, video switchers, or any high speed
portable equipment. The AD8041’s low distortion and fast settling
make it ideal for buffering high speed A-to-D converters.
The AD8041 has a high speed disable feature useful for mul-
tiplexing or for reducing power consumption (1.5 mA). The
disable logic interface is compatible with CMOS or open-
collector logic. The AD8041 offers a low power supply current
of 5.8 mA maximum and can run on a single 3 V power supply.
These features are ideally suited for portable and battery-
powered applications where size and power are critical.
The wide bandwidth of 160 MHz along with 160 V/µs of slew
rate on a single 5 V supply make the AD8041 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. The AD8041 is available in 8-lead PDIP and SOIC
over the industrial temperature range of –40°C to +85°C.
2
1
0
V
S
= 5V
G = +2
R
F
= 400
The AD8041 is a low power voltage feedback, high speed ampli-
fier designed to operate on +3 V, +5 V, or
±
5 V supplies. It has
true single-supply capability with an input voltage range extending
200 mV below the negative rail and within 1 V of the positive rail.
5V
NORMALIZED GAIN (dB)
1V
200ns
–1
–2
–3
–4
–5
–6
–7
2.5V
0V
–8
0
20
40
60
FREQUENCY (MHz)
80
100
Figure 1. Output Swing: G = –1, V
S
= 5 V
Figure 2. Frequency Response: G = +2, V
S
= 5 V
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. 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 companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© 2003 Analog Devices, Inc. All rights reserved.
AD8041* PRODUCT PAGE QUICK LINKS
Last Content Update: 02/23/2017
COMPARABLE PARTS
View a parametric search of comparable parts.
REFERENCE MATERIALS
Product Selection Guide
•
High Speed Amplifiers Selection Table
Tutorials
•
MT-032: Ideal Voltage Feedback (VFB) Op Amp
•
MT-033: Voltage Feedback Op Amp Gain and Bandwidth
•
MT-048: Op Amp Noise Relationships: 1/f Noise, RMS
Noise, and Equivalent Noise Bandwidth
•
MT-049: Op Amp Total Output Noise Calculations for
Single-Pole System
•
MT-050: Op Amp Total Output Noise Calculations for
Second-Order System
•
MT-052: Op Amp Noise Figure: Don't Be Misled
•
MT-053: Op Amp Distortion: HD, THD, THD + N, IMD,
SFDR, MTPR
•
MT-056: High Speed Voltage Feedback Op Amps
•
MT-058: Effects of Feedback Capacitance on VFB and CFB
Op Amps
•
MT-059: Compensating for the Effects of Input
Capacitance on VFB and CFB Op Amps Used in Current-to-
Voltage Converters
•
MT-060: Choosing Between Voltage Feedback and
Current Feedback Op Amps
EVALUATION KITS
•
Universal Evaluation Board for Single High Speed
Operational Amplifiers
DOCUMENTATION
Application Notes
•
AN-402: Replacing Output Clamping Op Amps with Input
Clamping Amps
•
AN-417: Fast Rail-to-Rail Operational Amplifiers Ease
Design Constraints in Low Voltage High Speed Systems
•
AN-581: Biasing and Decoupling Op Amps in Single
Supply Applications
•
AN-649: Using the Analog Devices Active Filter Design
Tool
Data Sheet
•
AD8041: 160 MHz Rail-to-Rail Amplifier with Disable Data
Sheet
•
AD8041: Military Data Sheet
User Guides
•
UG-755: 8-Lead SOIC Amplifier Evaluation Board User
Guide
DESIGN RESOURCES
TOOLS AND SIMULATIONS
•
Analog Filter Wizard
•
Analog Photodiode Wizard
•
Power Dissipation vs Die Temp
•
VRMS/dBm/dBu/dBV calculators
•
AD8041 SPICE Macro-Model
•
AD8041 Material Declaration
•
PCN-PDN Information
•
Quality And Reliability
•
Symbols and Footprints
DISCUSSIONS
View all AD8041 EngineerZone Discussions.
SAMPLE AND BUY
Visit the product page to see pricing options.
TECHNICAL SUPPORT
Submit a technical question or find your regional support
number.
DOCUMENT FEEDBACK
Submit feedback for this data sheet.
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AD8041–SPECIFICATIONS
(@ T = 25 C, V = 5 V, R = 2 k
A
S
L
to 2.5 V, unless otherwise noted.)
AD8041A
Typ
160
30
160
24
35
55
–72
16
600
0.03
0.01
0.03
0.19
2
7
8
3.2
3.5
0.5
Parameter
DYNAMIC PERFORMANCE
–3 dB Small Signal Bandwidth, V
O
< 0.5 V p-p
Bandwidth for 0.1 dB Flatness
Slew Rate
Full Power Response
Settling Time to 0.1%
Settling Time to 0.01%
NOISE/DISTORTION PERFORMANCE
Total Harmonic Distortion
Input Voltage Noise
Input Current Noise
Differential Gain Error (NTSC)
Differential Phase Error (NTSC)
DC PERFORMANCE
Input Offset Voltage
Conditions
G = +1
G = +2, R
L
= 150
Ω
G = –1, V
O
= 2 V Step
V
O
= 2 V p-p
G = –1, V
O
= 2 V Step
Min
130
130
Max
Unit
MHz
MHz
V/µs
MHz
ns
ns
dB
nV/√Hz
fA/√Hz
%
%
Degrees
Degrees
mV
mV
µV/°C
µA
µA
µA
dB
dB
kΩ
pF
V
dB
V
V
V
mA
mA
mA
pF
f
C
= 5 MHz, V
O
= 2 V p-p, G = +2, R
L
= 1 kΩ
f = 10 kHz
f = 10 kHz
G = +2, R
L
= 150
Ω
to 2.5 V
G = +2, R
L
= 75
Ω
to 2.5 V
G = +2, R
L
= 150
Ω
to 2.5 V
G = +2, R
L
= 75
Ω
to 2.5 V
T
MIN
to T
MAX
Offset Drift
Input Bias Current
T
MIN
to T
MAX
Input Offset Current
Open-Loop Gain
INPUT CHARACTERISTICS
Input Resistance
Input Capacitance
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
OUTPUT CHARACTERISTICS
Output Voltage Swing: R
L
= 10 kΩ
Output Voltage Swing:
R
L
= 1 kΩ
Output Voltage Swing:
R
L
= 50
Ω
Output Current
Short-Circuit Current
Capacitive Load Drive
POWER SUPPLY
Operating Range
Quiescent Current
Quiescent Current (Disabled)
Power Supply Rejection Ratio
DISABLE CHARACTERISTICS
Turn-Off Time
Turn-On Time
Off Isolation (Pin 8 Tied to –V
S
)
Off Voltage (Device Disabled)
On Voltage (Device Enabled)
Specifications subject to change without notice.
10
1.2
0.2
95
90
160
1.8
–0.2 to +4
80
0.05 to 4.95
0.1 to 4.9
0.3 to 4.5
50
90
150
45
R
L
= 1 kΩ
T
MIN
to T
MAX
86
V
CM
= 0 V to 3.5 V
74
0.35 to 4.75
0.4 to 4.4
V
OUT
= 0.5 V to 4.5 V
Sourcing
Sinking
G = +1
3
5.2
1.4
80
120
230
70
<V
S
– 2.5
Open or +V
S
12
5.8
1.7
V
S
= 0, +5 V,
±
1 V
V
O
= 2 V p-p @ 10 MHz, G = +2
R
F
= R
L
= 2 kΩ
R
F
= R
L
= 2 kΩ
R
L
= 100
Ω,
f = 5 MHz, G = +2, R
F
= 1 kΩ
72
V
mA
mA
dB
ns
ns
dB
V
V
–2–
REV. B
AD8041
SPECIFICATIONS
(@ T = 25 C, V = 3 V, R = 2 k
A
S
L
to 1.5 V, unless otherwise noted.)
Min
120
120
AD8041A
Typ
150
25
150
20
40
55
–55
16
600
0.07
0.05
2
7
8
3.2
3.5
0.6
Max
Unit
MHz
MHz
V/µs
MHz
ns
ns
dB
nV/√Hz
fA/√Hz
%
Degrees
mV
mV
µV/°C
µA
µA
µA
dB
dB
kΩ
pF
V
dB
V
V
V
mA
mA
mA
pF
12
5.6
1.5
V
mA
mA
dB
ns
ns
dB
V
V
Parameter
DYNAMIC PERFORMANCE
–3 dB Small Signal Bandwidth, V
O
< 0.5 V p-p
Bandwidth for 0.1 dB Flatness
Slew Rate
Full Power Response
Settling Time to 0.1%
Settling Time to 0.01%
NOISE/DISTORTION PERFORMANCE
Total Harmonic Distortion
Input Voltage Noise
Input Current Noise
Differential Gain Error (NTSC)
Differential Phase Error (NTSC)
DC PERFORMANCE
Input Offset Voltage
Conditions
G = +1
G = +2, R
L
= 150
Ω
G = –1, V
O
= 2 V Step
V
O
= 2 V p-p
G = –1, V
O
= 2 V Step
f
C
= 5 MHz, V
O
= 2 V p-p, G = –1, R
L
= 100
Ω
f = 10 kHz
f = 10 kHz
G = +2, R
L
= 150
Ω
to 1.5 V, Input V
CM
= 1 V
G = +2, R
L
= 150
Ω
to 1.5 V, Input V
CM
= 1 V
T
MIN
to T
MAX
Offset Drift
Input Bias Current
T
MIN
to T
MAX
Input Offset Current
Open-Loop Gain
INPUT CHARACTERISTICS
Input Resistance
Input Capacitance
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
OUTPUT CHARACTERISTICS
Output Voltage Swing: R
L
= 10 kΩ
Output Voltage Swing:
R
L
= 1 kΩ
Output Voltage Swing:
R
L
= 50
Ω
Output Current
Short-Circuit Current
Capacitive Load Drive
POWER SUPPLY
Operating Range
Quiescent Current
Quiescent Current (Disabled)
Power Supply Rejection Ratio
DISABLE CHARACTERISTICS
Turn-Off Time
Turn-On Time
Off Isolation (Pin 8 Tied to –V
S
)
Off Voltage (Device Disabled)
On Voltage (Device Enabled)
Specifications subject to change without notice.
10
1.2
0.2
94
89
160
1.8
–0.2 to +2
80
0.05 to 2.95
0.1 to 2.9
0.25 to 2.75
50
70
120
40
R
L
= 1 kΩ
T
MIN
to T
MAX
85
V
CM
= 0 V to 1.5 V
72
0.45 to 2.7
0.5 to 2.6
V
OUT
= 0.5 V to 2.5 V
Sourcing
Sinking
G = +1
3
V
S
= 0, +3 V,
±
0.5 V
V
O
= 2 V p-p @ 10 MHz, G = +2
R
F
= R
L
= 2 kΩ
R
F
= R
L
= 2 kΩ
R
L
= 100
Ω,
f = 5 MHz, G = +2, R
F
= 1 kΩ
68
5.0
1.3
80
90
170
70
<V
S
– 2.5
Open or +V
S
REV. B
–3–
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