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ADA4850-1 Datasheet(PDF) 1 Page - Analog Devices

Part No. ADA4850-1
Description  High Speed, Rail-to-Rail Output, Op Amp with Ultralow Power-Down
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADA4850-1 Datasheet(HTML) 1 Page - Analog Devices

 
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High Speed, Rail-to-Rail Output,
Op Amp with Ultralow Power-Down
ADA4850-1/ADA4850-2
Rev. A
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
www.analog.com
Fax: 781.461.3113
©2005 Analog Devices, Inc. All rights reserved.
FEATURES
Ultralow power-down current: 150 nA/amp max
Low quiescent current: 2.4 mA/amp
High speed
175 MHz −3 dB bandwidth
220 V/µs slew rate
85 ns settling time to 0.1%
Excellent video specifications
0.1 dB flatness: 14 MHz
Differential gain: 0.12%
Differential phase: 0.09°
Single-supply operation: 2.7 V to 6 V
Rail-to-rail output
Output swings to within 80 mV of either rail
Low voltage offset: 0.6 mV
APPLICATIONS
Portable multimedia players
Video cameras
Digital still cameras
Consumer video
PIN CONFIGURATIONS
1
POWER DOWN
2
NC
3
–IN
4
+IN
7 OUTPUT
8 +VS
6 NC
5 –VS
ADA4850-1
NC = NO CONNECT
Figure 1. 8-Lead, 3 mm × 3 mm LFCSP
NC = NO CONNECT
1
VOUT1
2
–IN1
3
+IN1
4
–VS
11 VOUT2
12 +VS
10 –IN2
9
+IN2
ADA4850-2
Figure 2. 16-Lead, 3 mm × 3 mm LFCSPP
GENERAL DESCRIPTION
The ADA4850-1, ADA4850-21 are low price, high speed,
voltage feedback rail-to-rail output op amps with ultralow
power-down. Despite their low price, the ADA4850-1/
ADA4850-2 provide excellent overall performance and
versatility. The 175 MHz −3 dB bandwidth and 220 V/µs
slew rate make these amplifiers well-suited for many general-
purpose, high speed applications.
The ADA4850-1/ADA4850-2 are designed to operate at supply
voltages as low as 2.7 V and up to 6 V at 2.4 mA of supply
current per amplifier. In power-down mode, the supply current
is less than 150 nA, ideal for battery-powered applications.
The ADA4850 family provides users with a true single-supply
capability, allowing input signals to extend 200 mV below the
negative rail and to within 2.2 V of the positive rail. The output
of the amplifier can swing within 80 mV of either supply rail.
With its combination of low price, excellent differential gain
(0.12%), differential phase (0.09º), and 0.1 dB flatness out to
14 MHz, these amplifiers are ideal for video applications.
The ADA4850-1/ADA4850-2 are designed to work in the
extended temperature range of −40°C to +125°C.
1
100
10
1000
FREQUENCY (MHz)
–6
–4
–5
–2
–3
0
–1
2
1
G = +1
VS = 5V
RL = 1kΩ
VOUT = 0.1V p-p
Figure 3. Small Signal Frequency Response
1 Patent pending.


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