160 MHz Rail-to-Rail
Amplifier with Disable
AD8041
FEATURES
Fully Specified for +3 V, +5 V, and ⴞ5 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 (RL = 150 ⍀, G = +2)
Gain Flatness of 0.1 dB to 30 MHz
0.03% Differential Gain Error
0.03ⴗ 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
The AD8041 is a low power voltage feedback, high speed amplifier 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.
CONNECTION DIAGRAM
8-Lead PDIP, CERDIP and SOIC
8 DISABLE
NC 1
7 ⴙVS
–INPUT 2
ⴙINPUT 3
–VS 4
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 differential 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 multiplexing or for reducing power consumption (1.5 mA). The
disable logic interface is compatible with CMOS or opencollector 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 batterypowered 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
VS = 5V
G = +2
RF = 400⍀
1
NORMALIZED GAIN (dB)
0
5V
2.5V
–1
–2
–3
–4
–5
–6
–7
0V
1V
200ns
–8
0
Figure 1. Output Swing: G = –1, VS = 5 V
20
40
60
FREQUENCY (MHz)
80
100
Figure 2. Frequency Response: G = +2, VS = 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–SPECIFICATIONS (@ T = 25ⴗC, V = 5 V, R = 2 k⍀ to 2.5 V, unless otherwise noted.)
A
S
L
Parameter
Conditions
Min
DYNAMIC PERFORMANCE
–3 dB Small Signal Bandwidth, VO < 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%
G = +1
G = +2, RL = 150 Ω
G = –1, VO = 2 V Step
VO = 2 V p-p
G = –1, VO = 2 V Step
130
NOISE/DISTORTION PERFORMANCE
Total Harmonic Distortion
Input Voltage Noise
Input Current Noise
Differential Gain Error (NTSC)
Differential Phase Error (NTSC)
130
fC = 5 MHz, VO = 2 V p-p, G = +2, RL = 1 kΩ
f = 10 kHz
f = 10 kHz
G = +2, RL = 150 Ω to 2.5 V
G = +2, RL = 75 Ω to 2.5 V
G = +2, RL = 150 Ω to 2.5 V
G = +2, RL = 75 Ω to 2.5 V
DC PERFORMANCE
Input Offset Voltage
AD8041A
Typ
MHz
MHz
V/µs
MHz
ns
ns
–72
16
600
0.03
0.01
0.03
0.19
dB
nV/√Hz
fA/√Hz
%
%
Degrees
Degrees
2
10
1.2
TMIN to TMAX
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: RL = 10 kΩ
Output Voltage Swing: RL = 1 kΩ
Output Voltage Swing: RL = 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 –VS)
Off Voltage (Device Disabled)
On Voltage (Device Enabled)
RL = 1 kΩ
TMIN to TMAX
86
VCM = 0 V to 3.5 V
74
0.35 to 4.75
0.4 to 4.4
VOUT = 0.5 V to 4.5 V
Sourcing
Sinking
G = +1
0.2
95
90
VO = 2 V p-p @ 10 MHz, G = +2
RF = RL = 2 kΩ
RF = RL = 2 kΩ
RL = 100 Ω, f = 5 MHz, G = +2, RF = 1 kΩ
72
7
8
3.2
3.5
0.5
mV
mV
µV/°C
µA
µA
µA
dB
dB
160
1.8
–0.2 to +4
80
kΩ
pF
V
dB
0.05 to 4.95
0.1 to 4.9
0.3 to 4.5
50
90
150
45
V
V
V
mA
mA
mA
pF
3
VS = 0, +5 V, ± 1 V
Unit
160
30
160
24
35
55
TMIN to TMAX
Offset Drift
Input Bias Current
Max
5.2
1.4
80
120
230
70
很抱歉,暂时无法提供与“AD8041AN”相匹配的价格&库存,您可以联系我们找货
免费人工找货