Low Cost, High Speed, Rail-to-Rail,
Output Op Amps
ADA4851-1/ADA4851-2/ADA4851-4
FEATURES
High speed
130 MHz, −3 dB bandwidth
375 V/μs slew rate
55 ns settling time to 0.1%
Excellent video specifications
0.1 dB flatness: 11 MHz
Differential gain: 0.08%
Differential phase: 0.09°
Fully specified at +3 V, +5 V, and ±5 V supplies
Rail-to-rail output
Output swings to within 60 mV of either rail
Low voltage offset: 0.6 mV
Wide supply range: 2.7 V to 12 V
Low power: 2.5 mA per amplifier
Power-down mode
Available in space-saving packages
6-lead SOT-23, 8-lead MSOP, and 14-lead TSSOP
Fully AEC-Q100 qualified (ADA4851-2W and ADA4851-4W)
PIN CONFIGURATIONS
V
OUT 1
–V
S 2
+IN
3
ADA4851-1
6
5
4
+V
S
POWER DOWN
05143-001
–IN
TOP VIEW (Not to Scale)
Figure 1. ADA4851-1, 6-Lead SOT-23 (RJ-6)
ADA4851-2
OUT1
1
–IN1
2
+IN1
3
–V
S 4
TOP VIEW
(Not to Scale)
8
7
6
5
+V
S
OUT
–IN2
+IN2
05143-058
Figure 2. ADA4851-2, 8-Lead MSOP (RM-8)
V
OUT
1
1
–IN 1
2
+IN 1
3
+V
S 4
+IN 2
5
–IN 2
6
V
OUT
2
7
14
13
12
11
10
9
8
V
OUT
4
–IN 4
+IN 4
–V
S
+IN 3
–IN 3
V
OUT
3
05143-054
APPLICATIONS
Automotive infotainment systems
Automotive driver assistance systems
Consumer video
Professional video
Video switchers
Active filters
Clock buffers
TOP VIEW
(Not to Scale)
ADA4851-4
Figure 3. ADA4851-4, 14-Lead TSSOP (RU-14)
GENERAL DESCRIPTION
The ADA4851-1 (single), ADA4851-2 (dual), and ADA4851-4
(quad) are low cost, high speed, voltage feedback rail-to-rail
output op amps. Despite their low price, these parts provide
excellent overall performance and versatility. The 130 MHz,
−3 dB bandwidth and high slew rate make these amplifiers well
suited for many general-purpose, high speed applications.
The ADA4851 family is designed to operate at supply voltages
as low as +3 V and up to ±5 V. These parts provide 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.
On the output, the amplifiers can swing within 60 mV of either
supply rail.
With their combination of low price, excellent differential gain
(0.08%), differential phase (0.09º), and 0.1 dB flatness out to
11 MHz, these amplifiers are ideal for consumer video applications.
The ADA4851 family is designed to work over the extended
temperature range (−40°C to +125°C). The ADA4851-4W and
Rev.
F
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.
ADA4851-2W are automotive grade versions, qualified for
−40°C to +125°C operation per AEC-Q100. See the Automotive
Products section for more details.
4
3
2
CLOSED-LOOP GAIN (dB)
G = +1
V
S
= 5V
R
L
= 1k
C
L
= 5pF
1
0
–1
–2
–3
–4
–5
1
10
100
1k
05143-004
–6
FREQUENCY (MHz)
Figure 4. Small-Signal Frequency Response
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 ©
2004–2009
Analog Devices, Inc. All rights reserved.
ADA4851-1/ADA4851-2/ADA4851-4
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 ................................................. 5
Specifications with ±5 V Supply ................................................. 7
Absolute Maximum Ratings............................................................ 9
Thermal Resistance ...................................................................... 9
ESD Caution...................................................................................9
Typical Performance Characteristics ........................................... 10
Circuit Description......................................................................... 16
Headroom Considerations ........................................................ 16
Overload Behavior and Recovery ............................................ 17
Single-Supply Video Amplifier ................................................. 18
Video Reconstruction Filter ...................................................... 18
Automotive Products ................................................................. 18
Outline Dimensions ....................................................................... 19
Ordering Guide .......................................................................... 20
REVISION HISTORY
5/09—Rev. E. to Rev. F
Changes to Features, Applications, and General Description
Sections .............................................................................................. 1
Changes to Table 1 ............................................................................ 3
Changes to Table 2 ............................................................................ 5
Changes to Table 3 ............................................................................ 7
Changes to Figure 27 and Figure 28 ............................................. 13
Changes to Figure 47 ...................................................................... 18
Added Automotive Products Section .......................................... 18
Updated Outline Dimensions ....................................................... 19
Changes to Ordering Guide .......................................................... 20
8/07—Rev. D to Rev. E
Changes to Applications .................................................................. 1
Changes to Common-Mode Rejection Ratio, Conditions .......... 5
Changes to Headroom Considerations Section ......................... 13
4/06—Rev. C to Rev. D
Added Video Reconstruction Filter Section ............................... 15
5/05—Rev. B to Rev. C
Changes to General Description .................................................... 1
Changes to Input Section............................................................... 14
4/05—Rev. A to Rev. B
Added ADA4851-2 ............................................................. Universal
Added 8-Lead MSOP ......................................................... Universal
Changes to Features.......................................................................... 1
Changes to General Description .................................................... 1
Changes to Table 1 ............................................................................ 3
Changes to Table 2 ............................................................................ 4
Changes to Table 3 ............................................................................ 5
Changes to Table 4 and Figure 5 ..................................................... 6
Changes to Figure 12, Figure 15, and Figure 17 ............................8
Changes to Figure 18.........................................................................9
Changes to Figure 28 Caption ...................................................... 10
Changes to Figure 33...................................................................... 11
Changes to Figure 36 and Figure 38............................................. 12
Added Figure 39 ............................................................................. 12
Changes to Circuit Description Section ...................................... 13
Changes to Headroom Considerations Section ......................... 13
Changes to Overload Behavior and Recovery Section .............. 14
Added Single-Supply Video Amplifier Section .......................... 15
Updated Outline Dimensions ....................................................... 16
Changes to Ordering Guide .......................................................... 17
1/05—Rev. 0 to Rev. A
Added ADA4851-4 ............................................................. Universal
Added 14-Lead TSSOP ...................................................... Universal
Changes to Features ..........................................................................1
Changes to General Description .....................................................1
Changes to Figure 3 ...........................................................................1
Changes to Specifications .................................................................3
Changes to Figure 4 ...........................................................................6
Changes to Figure 8 ...........................................................................7
Changes to Figure 11.........................................................................8
Changes to Figure 22.........................................................................9
Changes to Figure 23, Figure 24, and Figure 25 ......................... 10
Changes to Figure 27 and Figure 28............................................. 10
Changes to Figure 29, Figure 30, and Figure 31 ......................... 11
Changes to Figure 34...................................................................... 11
Added Figure 37 ............................................................................. 12
Changes to Ordering Guide .......................................................... 15
Updated Outline Dimensions ....................................................... 15
10/04—Revision 0: Initial Version
Rev. F | Page 2 of 20
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