a
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 Driver
Professional Cameras
CCD Imaging Systems
Ultrasound Equipment (Multichannel)
Single-Supply Multiplexer
PRODUCT DESCRIPTION
160 MHz Rail-to-Rail
Amplifier with Disable
AD8041
CONNECTION DIAGRAM
8-Pin Plastic Mini-DIP and SOIC
NC 1
–INPUT 2
+INPUT 3
–V
S
8
DISABLE
7 +V
S
6 OUTPUT
4
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 set-
tling 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 dis-
able logic interface is compatible with CMOS or open-collector
logic. The AD8041 offers low power supply current of 5.8 mA
max 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 sup-
plies of up to
±
6 V and single supplies from +3 V to +12 V are
needed. The AD8041 is available in 8-pin plastic DIP and
SOIC over the industrial temperature range of –40°C to +85°C.
+2
+1
0
V
S
= +5V
G = +2
R
F
= 400Ω
The AD8041 is a low power voltage feedback, high speed am-
plifier 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.
NORMALIZED GAIN – dB
–1
–2
–3
–4
–5
–6
–7
5V
2.5V
0V
1V
200ns
–8
0
20
40
60
80
100
FREQUENCY – MHz
Figure 1. Output Swing: Gain = –1, V
S
= +5 V
Figure 2. Frequency Response: Gain = +2, V
S
= +5 V
© Analog Devices, Inc., 1995
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
REV. 0
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
AD [ ANALOG DEVICES ]
