ADA4851-1_06 AD [Analog Devices], ADA4851-1_06 Datasheet

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ADA4851-1_06

Manufacturer Part Number
ADA4851-1_06
Description
Low Cost, High Speed, Rail-to-Rail, Output Op Amps
Manufacturer
AD [Analog Devices]
Datasheet
FEATURES
High speed
Excellent video specifications
Fully specified at +3 V, +5 V, and ±5 V supplies
Rail-to-rail output
Low voltage offset: 0.6 mV
Wide supply range: 3 V to 10 V
Low power: 2.5 mA/amplifier
Power-down mode
Available in space-saving packages
APPLICATIONS
Consumer video
Professional video
Video switchers
Active filters
GENERAL DESCRIPTION
The ADA4851-1 (single)/ADA4851-2 (dual)/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.
Rev. D
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.
130 MHz, −3 dB bandwidth
375 V/μs slew rate
55 ns settling time to 0.1%
0.1 dB flatness: 11 MHz
Differential gain: 0.08%
Differential phase: 0.09°
Output swings to within 60 mV of either rail
6-lead SOT-23, 14-lead TSSOP, and 8-lead MSOP
Low Cost, High Speed, Rail-to-Rail,
ADA4851-1/ADA4851-2/ADA4851-4
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The ADA4851 family is designed to work over the extended
temperature range (−40°C to +125°C).
–1
–2
–3
–4
–5
–6
4
3
2
1
0
1
G = +1
V
R
C
S
L
L
Figure 3. ADA4851-4, 14-Lead TSSOP (RU-14)
= 5V
= 1kΩ
= 5pF
Figure 1. ADA4851-1, 6-Lead SOT-23 (RJ-6)
Figure 2. ADA4851-2, 8-Lead MSOP (RM-8)
Figure 4. Small Signal Frequency Response
V
V
V
OUT
OUT
–IN 1
+IN 1
+IN 2
–IN 2
–V
OUT
+IN
+V
PIN CONFIGURATIONS
S
OUT1
TOP VIEW (Not to Scale)
1
S
2
–IN1
+IN1
–V
1
2
3
1
2
3
4
5
6
7
S
© 2006 Analog Devices, Inc. All rights reserved.
ADA4851-1
1
2
3
4
10
(Not to Scale)
ADA4851-4
FREQUENCY (MHz)
ADA4851-2
(Not to Scale)
TOP VIEW
TOP VIEW
Output Op Amps
6
5
4
+V
POWER DOWN
–IN
100
14
13
12
11
10
8
7
6
5
S
9
8
+V
OUT
–IN2
+IN2
V
–IN 4
+IN 4
–V
+IN 3
–IN 3
V
OUT
OUT
S
S
4
3
www.analog.com
1k

Related parts for ADA4851-1_06

ADA4851-1_06 Summary of contents

Page 1

... ADA4851-4 TOP VIEW + (Not to Scale) + – OUT Figure 3. ADA4851-4, 14-Lead TSSOP (RU-14) The ADA4851 family is designed to work over the extended temperature range (−40°C to +125°C 1kΩ 5pF –1 – ...

Page 2

... Headroom Considerations........................................................ 13 Overload Behavior and Recovery ............................................ 14 Single-Supply Video Amplifier................................................. 15 Video Reconstruction Filter...................................................... 15 Outline Dimensions ....................................................................... 16 Ordering Guide .......................................................................... 17 1/05—Rev 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 ...

Page 3

... Settling Time to 0.1% NOISE/DISTORTION PERFORMANCE Harmonic Distortion (dBc) HD2/HD3 Input Voltage Noise Input Current Noise Differential Gain Differential Phase Crosstalk (RTI)—ADA4851-2/ADA4851-4 DC PERFORMANCE Input Offset Voltage Input Offset Voltage Drift Input Bias Current Input Bias Current Drift Input Bias Offset Current ...

Page 4

... Settling Time to 0.1% NOISE/DISTORTION PERFORMANCE Harmonic Distortion (dBc) HD2/HD3 Input Voltage Noise Input Current Noise Differential Gain Differential Phase Crosstalk (RTI)—ADA4851-2/ADA4851-4 DC PERFORMANCE Input Offset Voltage Input Offset Voltage Drift Input Bias Current Input Bias Current Drift Input Bias Offset Current ...

Page 5

... Output Overdrive Recovery Time (Rise/Fall) Output Voltage Swing Short-Circuit Current POWER SUPPLY Operating Range Quiescent Current per Amplifier Quiescent Current (Power-Down) Positive Power Supply Rejection Negative Power Supply Rejection ADA4851-1/ADA4851-2/ADA4851 kΩ, unless otherwise noted. L Conditions 0 p-p ...

Page 6

... MSOP 150 Maximum Power Dissipation The maximum safe power dissipation for the ADA4851-1/ ADA4851-2/ADA4851-4 is limited by the associated rise in junction temperature ( the die. At approximately 150°C, J which is the glass transition temperature, the plastic changes its properties. Even temporarily exceeding this temperature limit ...

Page 7

... Figure 10. Small Signal Frequency Response for Various Temperatures V = +5V S –1 –2 –3 –4 –5 –6 –7 100 300 Rev Page ADA4851-1/ADA4851-2/ADA4851 1kΩ 0.1V p-p 2 OUT 1 0 5pF 0pF 1 10 ...

Page 8

... ADA4851-1/ADA4851-2/ADA4851-4 6.2 6.1 6.0 5 100mV p-p OUT 5 p-p OUT p-p 5.7 OUT 5.6 5.5 5.4 0.1 1 FREQUENCY (MHz) Figure 12. 0.1 dB Flatness Response 1 0 –1 – 150Ω L –3 –4 –5 – FREQUENCY (MHz) Figure 13. Large Frequency Response for Various Loads 140 120 100 PHASE GAIN 20 0 –20 ...

Page 9

... TIME (ns) Figure 20. Input Overdrive Recovery ADA4851-1/ADA4851-2/ADA4851-4 0.075 0.050 0.025 150Ω HD3 –0.025 L –0.050 –0.075 0 10 Figure 21. Small Signal Transient Response for Various Supplies 2 ...

Page 10

... V S 2.5 2.0 –V – OUT 1.5 1.0 0 Figure 28. ADA4851-1, Supply Current vs. POWER DOWN Pin Voltage 300 200 100 0 –100 –200 –300 –400 Figure 29. Input Offset Voltage vs. Temperature for Various Supplies Rev Page DISABLE ...

Page 11

... Figure 31. Output Saturation vs. Temperature for Various Supplies 3 3.0 2 2.6 2 +3V S 2.2 2.0 –40 –25 – TEMPERATURE (°C) Figure 32. Supply Current vs. Temperature for Various Supplies ADA4851-1/ADA4851-2/ADA4851-4 1000 100 110 125 10 100 110 125 ± ...

Page 12

... DRIVE AMPS 1, 2, AND 4 LISTEN AMP 3 DRIVE AMP 1 LISTEN AMP 2 0 FREQUENCY (MHz) Figure 38. ADA4851-4, RTI Crosstalk vs. Frequency 1kΩ p-p IN DRIVE AMP 1 LISTEN AMP 2 DRIVE AMP 2 LISTEN AMP 1 0 FREQUENCY (MHz) Figure 39. ADA4851-2, RTI Crosstalk vs. Frequency 100 100 ...

Page 13

... The input stage is the headroom limit for signals approaching the positive rail. Figure 40 shows a typical offset voltage vs. the input common-mode voltage for the ADA4851-1/ADA4851-2/ ADA4851-4 amplifiers on a ±5 V supply. Accurate dc performance is maintained from approximately 200 mV below the minus supply to within 2 the positive supply. For high speed signals, however, there are other considerations. Figure 41 shows − ...

Page 14

... OVERLOAD BEHAVIOR AND RECOVERY Input The specified input common-mode voltage of the ADA4851-1/ ADA4851-2/ADA4851-4 is 200 mV below the negative supply to within 2 the positive supply. Exceeding the top limit results in lower bandwidth and increased rise time, as seen in Figure 41 and Figure 42. Pushing the input voltage of a unity- gain follower to less than 2 V from the positive supply leads to the behavior shown in Figure 43— ...

Page 15

... DAC/encoder to eliminate the multiple images that are created during the sampling process within the DAC. For portable video applications, the ADA4851 ideal choice due to its lower power requirements and high performance. An example MHz, 3-pole, Sallen-Key low pass, video reconstruction filter is shown in Figure 46 ...

Page 16

... ADA4851-1/ADA4851-2/ADA4851-4 OUTLINE DIMENSIONS 1.60 BSC PIN 1 INDICATOR 1.30 1.15 0.90 0.15 MAX 2.90 BSC 2.80 BSC 0.95 BSC 1.90 BSC 1.45 MAX 0.22 0.08 0.50 SEATING 0.30 PLANE COMPLIANT TO JEDEC STANDARDS MO-178-AB Figure 48. 6-Lead Small Outline Transistor Package [SOT-23] (RJ-6) Dimensions shown in millimeters 3.20 3.00 2.80 5. 3.20 4.90 3.00 4.65 2. PIN 1 0.65 BSC 0.95 0.85 1.10 MAX 0.75 8° 0.15 0.38 0.23 0° 0.00 0.22 0.08 COPLANARITY SEATING ...

Page 17

... ADA4851-1YRJZ-RL7 −40°C to +125°C 1 ADA4851-2YRMZ −40°C to +125°C 1 ADA4851-2YRMZ-RL −40°C to +125°C ADA4851-2YRMZ-RL7 1 −40°C to +125°C 1 ADA4851-4YRUZ –40°C to +125°C 1 ADA4851-4YRUZ-RL –40°C to +125°C 1 ADA4851-4YRUZ-R7 –40°C to +125° Pb-free part. 5.10 5.00 4. ...

Page 18

... ADA4851-1/ADA4851-2/ADA4851-4 NOTES Rev Page ...

Page 19

... NOTES ADA4851-1/ADA4851-2/ADA4851-4 Rev Page ...

Page 20

... ADA4851-1/ADA4851-2/ADA4851-4 NOTES © 2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05143-0-4/06(D) Rev Page ...

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