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ADA4850-1 PDF даташит

Спецификация ADA4850-1 изготовлена ​​​​«Analog Devices» и имеет функцию, называемую «(ADA4850-1/-2) Op Amp».

Детали детали

Номер произв ADA4850-1
Описание (ADA4850-1/-2) Op Amp
Производители Analog Devices
логотип Analog Devices логотип 

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ADA4850-1 Даташит, Описание, Даташиты
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High Speed, Rail-to-Rail Output,
Op Amp with Ultralow Power-Down
ADA4850-1/ADA4850-2
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
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.
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.
PIN CONFIGURATIONS
POWER DOWN 1
NC 2
–IN 3
+IN 4
ADA4850-1
8 +VS
7 OUTPUT
6 NC
5 –VS
NC = NO CONNECT
Figure 1. 8-Lead, 3 mm × 3 mm LFCSP
VOUT1 1
–IN1 2
+IN1 3
–VS 4
ADA4850-2
12 +VS
11 VOUT2
10 –IN2
9 +IN2
NC = NO CONNECT
Figure 2. 16-Lead, 3 mm × 3 mm LFCSPP
The ADA4850-1/ADA4850-2 are designed to work in the
extended temperature range of −40°C to +125°C.
2
1
0
–1
–2
–3
–4
G = +1
–5
VS = 5V
RL = 1k
VOUT = 0.1V p-p
–6
1
10
100
FREQUENCY (MHz)
Figure 3. Small Signal Frequency Response
1000
1 Patent pending.
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.









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ADA4850-1 Даташит, Описание, Даташиты
ADA4850-1/ADA4850-2
TABLE OF CONTENTS
Specifications with +3 V Supply ..................................................... 3
Specifications with +5 V Supply ..................................................... 4
Absolute Maximum Ratings............................................................ 5
Thermal Resistance ...................................................................... 5
ESD Caution.................................................................................. 5
Typical Performance Characteristics ............................................. 6
Circuit Description......................................................................... 12
REVISION HISTORY
4/05—Rev. 0 to Rev. A
AddedADA4850-1 .............................................................. Universal
Added 8-Lead LFCSP.........................................................Universal
Changes to Features.......................................................................... 1
Changes to General Description .................................................... 1
Changes to Figure 3.......................................................................... 1
Changes to Table 1............................................................................ 3
Changes to Table 2............................................................................ 4
Changes to Power-Down Pins Section and Table 5 ................... 13
Updated Outline Dimensions ....................................................... 14
Changes to Ordering Guide .......................................................... 14
2/05—Revision 0: Initial Version
Headroom and Overdrive Recovery Considerations ............ 12
Operating the ADA4850-1/ADA4850-2 on
Bipolar Supplies .......................................................................... 13
Power-Down Pins....................................................................... 13
Outline Dimensions ....................................................................... 14
Ordering Guide .......................................................................... 14
Rev. A | Page 2 of 16









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ADA4850-1 Даташит, Описание, Даташиты
ADA4850-1/ADA4850-2
SPECIFICATIONS WITH +3 V SUPPLY
TA = 25°C, RF = 0 Ω for G = +1, RF = 1 kΩ for G > +1, RL = 1 kΩ, unless otherwise noted.
Table 1.
Parameter
DYNAMIC PERFORMANCE
−3 dB Bandwidth
Bandwidth for 0.1 dB Flatness
Slew Rate
Settling Time to 0.1%
NOISE/DISTORTION PERFORMANCE
Harmonic Distortion (dBc) HD2/HD3
Input Voltage Noise
Input Current Noise
Conditions
G = +1, VO = 0.1 V p-p
G = +2, VO = 0.5 V p-p, RL = 150 Ω
G = +2, VO = 0.5 V p-p, RL = 150 Ω
G = +2, VO = 1 V Step
G = +2, VO = 1 V Step, RL = 150 Ω
fC = 1 MHz, VO = 2 V p-p, G = +3, RL = 150 Ω
f = 100 kHz
f = 100 kHz
Differential Gain
Differential Phase
DC PERFORMANCE
Input Offset Voltage
Input Offset Voltage Drift
G = +3, NTSC, RL = 150 Ω, VO = 2 V p-p
G = +3, NTSC, RL = 150 Ω, VO = 2 V p-p
Input Bias Current
Input Bias Current Drift
Input Bias Offset Current
Open-Loop Gain
INPUT CHARACTERISTICS
Input Resistance
Input Capacitance
Input Common-Mode Voltage Range
Input Overdrive Recovery Time (Rise/Fall)
Common-Mode Rejection Ratio
POWER-DOWN
Power-Down Input Voltage
Turn-Off Time
Turn-On Time
Power-Down Bias Current/ Power Down Pin
Enabled
Power-Down
OUTPUT CHARACTERISTICS
Output Overdrive Recovery Time (Rise/Fall)
Output Voltage Swing
Short-Circuit Current
POWER SUPPLY
Operating Range1
Quiescent Current/Amplifier
Quiescent Current (Power-Down)/Amplifier
Positive Power Supply Rejection
Negative Power Supply Rejection
VO = 0.25 V to 0.75 V
Differential/common-mode
VIN = +3.5 V to −0.5 V, G = +1
VCM = 0.5 V
Power-down ADA4850-1/ADA4850-2
Enabled ADA4850-1/ADA4850-2
Power-down = 3 V
Power-down = 0 V
VIN = +0.7 V to −0.1 V, G = +5
Sinking/sourcing
+VS = +3 V to +4 V, −VS = 0 V
+VS = +3 V, −VS = 0 V to –1 V
Min Typ
Max Unit
160 MHz
45 MHz
14 MHz
110 V/µs
80 ns
−72/−77
10
2.5
0.2
0.2
dBc
nV/√Hz
pA/√Hz
%
Degrees
0.6 4.1 mV
4 µV/°C
2.4 4.4 µA
4 nA/°C
30 nA
78 100
dB
0.5/5.0
MΩ
1.2 pF
−0.2 to +0.8
V
60/50
ns
−76 −108
dB
<0.7/<0.6
>0.8/>1.7
0.7
60
V
V
µs
ns
37 55 µA
0.01 0.2 µA
0.06 to 2.83
70/100
0.03 to 2.92
105/74
ns
V
mA
2.7 6 V
2.4 2.8 mA
15 150 nA
−83 −100
dB
−83 −102
dB
1 For operation on bipolar supplies, see the Operating the ADA4850-1/ADA4850-2 on Bipolar Supplies section.
Rev. A | Page 3 of 16










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Номер в каталогеОписаниеПроизводители
ADA4850-1(ADA4850-1/-2) Op AmpAnalog Devices
Analog Devices
ADA4850-2(ADA4850-1/-2) Op AmpAnalog Devices
Analog Devices

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