ADA4851-1 Analog Devices, ADA4851-1 Datasheet
ADA4851-1
Specifications of ADA4851-1
Available stocks
Related parts for ADA4851-1
ADA4851-1 Summary of contents
Page 1
... Video switchers Active filters Clock buffers 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, − ...
Page 2
... ADA4851-1/ADA4851-2/ADA4851-4 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Pin Configurations ........................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 4 Specifications with +3 V Supply ................................................. 4 Specifications with +5 V Supply ................................................. 6 Specifications with ±5 V Supply ................................................. 8 Absolute Maximum Ratings .......................................................... 10 Thermal Resistance .................................................................... 10 REVISION HISTORY 10/10—Rev Rev. J Added Output Characteristics, Linear Output Current Parameter, Table 2 ...
Page 3
... 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 ADA4851-1/ADA4851-2/ADA4851-4 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 ...
Page 4
... V p-p OUT ADA4851-1W/2W/4W only MIN MAX ADA4851-1W/2W/4W only MIN MAX 0.75 V OUT ADA4851-1W/2W/4W only MIN MAX ADA4851-1W only MIN MAX Differential/common-mode V = +3.5 V, −0 0 ADA4851-1W/2W/4W only MIN MAX Power-down Power-up POWER DOWN = 3 V ...
Page 5
... MAX Sinking/sourcing ADA4851-1W/2W/4W only MIN MAX POWER DOWN = low ADA4851-1W only MIN MAX + +3.5 V, −V = −0 ADA4851-1W/2W/4W only MIN MAX +V = +2.5 V, −V = −0 –1 ADA4851-1W/2W/4W only MIN MAX Rev Page Min Typ ...
Page 6
... V p-p L OUT MHz + 2.0 V p-p OUT ADA4851-1W/2W/4W only MIN MAX ADA4851-1W/2W/4W only MIN MAX OUT ADA4851-1W/2W/4W only MIN MAX Differential/common-mode V = +5.5 V, −0 ADA4851-1W/2W/4W only MIN MAX Power-down Power-up ...
Page 7
... Sinking/sourcing ADA4851-1W/2W/4W only MIN MAX POWER DOWN = low ADA4851-1W only MIN MAX + − ADA4851-1W/2W/4W only MIN MAX + −V = − − ADA4851-1W/2W/4W only MIN MAX Rev Page Min Typ ...
Page 8
... V p-p L OUT MHz + 2.0 V p-p OUT ADA4851-1W/2W/4W only MIN MAX ADA4851-1W/2W/4W only MIN MAX V = ±2.5 V OUT ADA4851-1W/2W/4W only MIN MAX Differential/common-mode V = ± − ADA4851-1W/2W/4W only MIN MAX Power-down Power-up POWER DOWN = +5 V ...
Page 9
... Sinking/sourcing ADA4851-1W/2W/4W only MIN MAX POWER DOWN = low ADA4851-1W only MIN MAX + −V = − ADA4851-1W/2W/4W only MIN MAX + −V = − − ADA4851-1W/2W/4W only MIN MAX Rev Page Min Typ ...
Page 10
... MSOP 150 14-lead TSSOP 120 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 ...
Page 11
... 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 FREQUENCY (MHz) ...
Page 12
... 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 for Various Output Amplitudes 1 0 –1 – 150Ω L –3 –4 –5 – FREQUENCY (MHz) Figure 13. Large Frequency Response for Various Loads 140 120 100 ...
Page 13
... TIME (ns) Figure 20. Input Overdrive Recovery ADA4851-1/ADA4851-2/ADA4851-4 0.075 0.050 0.025 0 = 150Ω HD3 L –0.025 –0.050 –0.075 10 0 Figure 21. Small-Signal Transient Response for Various Supplies 2 ...
Page 14
... V S 2.0 –V – V 1.5 S OUT 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 POWER DOWN ...
Page 15
... Figure 31. Output Saturation vs. Temperature for Various Supplies 3 3.0 2.8 V 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 80 = ± ...
Page 16
... ADA4851-1/ADA4851-2/ADA4851-4 –30 = ± –40 –50 –60 –70 –80 –90 –100 –110 –120 1k 10k 100k 1M 10M FREQUENCY (Hz) Figure 36. Common-Mode Rejection Ratio (CMRR) vs. Frequency 0 = ±5V V –10 S –20 –30 –40 –50 +PSR –60 –PSR –70 –80 –90 –100 –110 100 1k 10k ...
Page 17
... CIRCUIT DESCRIPTION The ADA4851-1/ADA4851-2/ADA4851-4 feature a high slew rate input stage that is a true single-supply topology, capable of sensing signals at or below the negative supply rail. The rail-to- rail output stage can pull within either supply rail when driving light loads and within 0.17 V when driving 150 Ω. High speed performance is maintained at supply voltages as low as 2 ...
Page 18
... 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 shown in Figure 41 and Figure 42 ...
Page 19
... V OUT 75Ω Gain V’ V OUT (V/V) (V) (V) 2 1.6 0.8 3 2.4 1.2 2 4.9 2.45 0.03 Figure 47. Video Reconstruction Filter Frequency Performance Rev Page ADA4851-1/ADA4851-2/ADA4851-4 C2 51pF +3V OUT 47Ω 125Ω R6 6.8Ω 37.4Ω 51pF R4 2kΩ 6.8pF 1kΩ Figure 46. 8 MHz Video Reconstruction Filter Schematic 5dB/REF – ...
Page 20
... ADA4851-1/ADA4851-2/ADA4851-4 OUTLINE DIMENSIONS 1.70 1.60 1.50 PIN 1 INDICATOR 1.30 1.15 0.90 0.15 MAX 0.05 MIN IDENTIFIER 3.00 2.90 2. 3.00 2.80 2. 0.95 BSC 1.90 BSC 0.20 MAX 1.45 MAX 0.08 MIN 0.95 MIN SEATING 0.50 MAX PLANE 0.30 MIN 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 1 2.80 4 PIN 1 0.65 BSC 0.95 15° ...
Page 21
... W = qualified for automotive applications. AUTOMOTIVE PRODUCTS The ADA4851-1W/ADA4851-2W/ADA4851-4W models are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. Note that these automotive models may have specifications that differ from the commercial models; therefore, designers should review the Specifications section of this data sheet carefully. Only the automotive grade products shown are available for use in automotive applications ...
Page 22
... ADA4851-1/ADA4851-2/ADA4851-4 NOTES Rev Page ...
Page 23
... NOTES ADA4851-1/ADA4851-2/ADA4851-4 Rev Page ...
Page 24
... ADA4851-1/ADA4851-2/ADA4851-4 NOTES ©2004–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05143-0-10/10(J) Rev Page ...