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ADA4850-2YCP-EBZ

P1-P3P4-P6P7-P9P10-P12P13-P14
High Speed, Rail-to-Rail Output
Op Amps with Ultralow Power-Down
Data Sheet
ADA4850-1/ADA4850-2
Rev. D Document Feedback
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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
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Tel: 781.329.4700 ©2005–2016 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
FEATURES
Ultralow power-down current: 150 nA/amplifier maximum
Low quiescent current: 2.4 mA/amplifier
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
Clock buffers
PIN CONFIGURATIONS
Figure 1. 8-Lead, 3 mm × 3 mm LFCSP
Figure 2. 16-Lead, 3 mm × 3 mm LFCSP
GENERAL DESCRIPTION
The ADA4850-1/ADA4850-2 are low price, high speed, voltage
feedbacks 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 ADA4850-1/ADA4850-2 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 (0.09°), 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.
Figure 3. Small Signal Frequency Response
POWER DOWN
NIC
–IN
+IN
OUTPUT
+V
S
NIC
–V
S
05320-106
NOTES
1. EXPOSED PAD CAN BE CONNECTED TO GND,
OR LEFT FLOATING.
2. NIC = NO INTERNAL CONNECTION.
3
4
1
2
6
5
8
7
ADA4850-1
TOP VIEW
05320-043
NOTES
1. EXPOSED PAD CAN BE CONNECTED TO GND,
OR LEFT FLOATING.
2. NIC = NO INTERNAL CONNECTION.
12
11
10
1
3
4
9
2
6
5
7
8
16
15
14
13
ADA4850-2
TOP VIEW
V
OUT
1
–IN1
+IN1
–V
S
+V
S
PD2
PD1
NIC
NIC
V
OUT
2
–IN2
+IN2
NIC
NIC
NIC
NIC
CLOSED-LOOP GAIN (dB)
1 10010 1000
05320-054
FREQUENCY (MHz)
–6
–4
–5
–2
–3
0
–1
2
1
G = +1
V
S
= 5V
R
L
= 1k
V
OUT
= 0.1V p-p
ADA4850-1/ADA4850-2 Data Sheet
Rev. D | Page 2 of 14
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Pin Configurations ........................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
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
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
REVISION HISTORY
5/16—Rev. C to Rev. D
Change CP-8-2 to CP-8-13 and CP-16-3 to CP-16-21 .. Throughout
Changes to Figure 1 and Figure 2 ................................................... 1
Updated Outline Dimensions ....................................................... 14
Changes to Ordering Guide .......................................................... 14
5/12—Rev. B to Rev. C
Added Exposed Pat Notation to Figure 1 and Figure 2 ............... 1
Changes to Table 4 and Figure 4 ..................................................... 5
Added Exposed Pad Notation to Outline Dimensions ............. 14
Changes to Ordering Guide .......................................................... 14
12/07—Rev. A to Rev. B
Changes to Applications .................................................................. 1
Updated Outline Dimensions ....................................................... 14
Changes to Ordering Guide .......................................................... 14
4/05—Rev. 0 to Rev. A
Added ADA4850-1 ............................................................. 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
Data Sheet ADA4850-1/ADA4850-2
Rev. D | Page 3 of 14
SPECIFICATIONS
SPECIFICATIONS WITH +3 V SUPPLY
T
A
= 25°C, R
F
= 0 Ω for G = +1, R
F
= 1 kΩ for G > +1, R
L
= 1 kΩ, unless otherwise noted.
Table 1.
Parameter Test Conditions/Comments Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Bandwidth G = +1, V
O
= 0.1 V p-p 160 MHz
G = +2, V
O
= 0.5 V p-p, R
L
= 150 Ω 45 MHz
Bandwidth for 0.1 dB Flatness G = +2, V
O
= 0.5 V p-p, R
L
= 150 Ω 14 MHz
Slew Rate G = +2, V
O
= 1 V step 110 V/µs
Settling Time to 0.1% G = +2, V
O
= 1 V step, R
L
= 150 Ω 80 ns
NOISE/DISTORTION PERFORMANCE
Harmonic Distortion (dBc) HD2/HD3 f
C
= 1 MHz, V
O
= 2 V p-p, G = +3, R
L
= 150 Ω −72/−77 dBc
Input Voltage Noise f = 100 kHz 10 nV/√Hz
Input Current Noise f = 100 kHz 2.5 pA/√Hz
Differential Gain G = +3, NTSC, R
L
= 150 Ω, V
O
= 2 V p-p 0.2 %
Differential Phase
G = +3, NTSC, R
L
= 150 Ω, V
O
= 2 V p-p
0.2
Degrees
DC PERFORMANCE
Input Offset Voltage
0.6
4.1
mV
Input Offset Voltage Drift 4 µV/°C
Input Bias Current 2.4 4.4 µA
Input Bias Current Drift 4 nA/°C
Input Bias Offset Current 30 nA
Open-Loop Gain V
O
= 0.25 V to 0.75 V 78 100 dB
INPUT CHARACTERISTICS
Input Resistance Differential/common-mode 0.5/5.0 MΩ
Input Capacitance 1.2 pF
Input Common-Mode Voltage Range
−0.2 to +0.8
V
Input Overdrive Recovery Time (Rise/Fall) V
IN
= +3.5 V to −0.5 V, G = +1 60/50 ns
Common-Mode Rejection Ratio V
CM
= 0.5 V −76 −108 dB
POWER-DOWN
Power-Down Input Voltage Power-down ADA4850-1/ADA4850-2 <0.7/<0.6 V
Enabled ADA4850-1/ADA4850-2 >0.8/>1.7 V
Turn-Off Time 0.7 µs
Turn-On Time 60 ns
Power-Down Bias Current/ Power Down Pin
Enabled Power-down = 3 V 37 55 µA
Power-Down Power-down = 0 V 0.01 0.2 µA
OUTPUT CHARACTERISTICS
Output Overdrive Recovery Time (Rise/Fall) V
IN
= +0.7 V to −0.1 V, G = +5 70/100 ns
Output Voltage Swing 0.06 to 2.83 0.03 to 2.92 V
Short-Circuit Current Sinking/sourcing 105/74 mA
POWER SUPPLY
Operating Range
1
2.7 6 V
Quiescent Current/Amplifier 2.4 2.8 mA
Quiescent Current (Power-Down)/Amplifier 15 150 nA
Positive Power Supply Rejection +V
S
= +3 V to +4 V, −V
S
= 0 V −83 −100 dB
Negative Power Supply Rejection +V
S
= +3 V, −V
S
= 0 V to –1 V −83 −102 dB
1
For operation on bipolar supplies, see the Operating the ADA4850-1/ADA4850-2 on Bipolar Supplies section.
P1-P3P4-P6P7-P9P10-P12P13-P14

ADA4850-2YCP-EBZ

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Amplifier IC Development Tools ADA4850 Eval Brd
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