AD8137YCPZ-REEL7 Analog Devices Inc, AD8137YCPZ-REEL7 Datasheet
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AD8137YCPZ-REEL7
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AD8137YCPZ-REEL7 Summary of contents
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... ADC drivers Portable instrumentation Battery-powered applications Single-ended-to-differential converters Differential active filters Video amplifiers Level shifters GENERAL DESCRIPTON The AD8137 is a low cost differential driver with a rail-to-rail output that is ideal for driving ADCs in systems that are sensitive to power and cost. The AD8137 is easy to apply, and its internal common-mode feedback architecture allows its output common- mode voltage to be controlled by the voltage applied to one pin ...
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AD8137 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Descripton .......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 6 Thermal Resistance ...................................................................... 6 Maximum Power Dissipation ..................................................... 6 ...
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SPECIFICATIONS V = ± 25°C, differential gain = OCM Table 1. Parameter DIFFERENTIAL INPUT PERFORMANCE Dynamic Performance −3 dB Small Signal Bandwidth −3 dB Large Signal Bandwidth Slew Rate Settling Time ...
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AD8137 2 25°C, differential gain = OCM Table 2. Parameter DIFFERENTIAL INPUT PERFORMANCE Dynamic Performance −3 dB Small Signal Bandwidth −3 dB Large Signal Bandwidth Slew Rate Settling Time ...
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1 25°C, differential gain = OCM Table 3. Parameter DIFFERENTIAL INPUT PERFORMANCE Dynamic Performance −3 dB Small Signal Bandwidth −3 dB Large Signal Bandwidth Slew Rate Settling Time to ...
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AD8137 ABSOLUTE MAXIMUM RATINGS Table 4. Parameter Supply Voltage V OCM Power Dissipation Input Common-Mode Voltage Storage Temperature Range Operating Temperature Range Lead Temperature (Soldering, 10 sec) Junction Temperature Stresses above those listed under Absolute Maximum Ratings may cause permanent ...
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 6. Pin Function Descriptions Pin No. Mnemonic Description 1 −IN Inverting Input internal feedback loop drives the output common-mode voltage to be equal to the voltage applied to OCM the V ...
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AD8137 TYPICAL PERFORMANCE CHARACTERISTICS Unless otherwise noted, differential gain = 1, R Figure 60 for the definition of terms – –2 –3 –4 – –6 –7 –8 ...
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R = 1kΩ 2kΩ –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 – 0.1V p – 100 FREQUENCY (MHz) ...
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AD8137 – 2kΩ –2 F –3 – 1kΩ F –5 –6 –7 – –9 = ± – 0.1V p – ...
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p –50 – 200Ω –70 – 500Ω – –100 –110 0.1 1 FREQUENCY (MHz) Figure 23. Second Harmonic Distortion at Various Loads – ...
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AD8137 – 500kHz p SECOND HARMONIC SOLID LINE –60 THIRD HARMONIC DASHED LINE –70 –80 –90 –100 –110 0.5 1.0 1.5 2.0 2.5 V (V) OCM Figure 29. Harmonic Distortion vs. V ...
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INPUT 6 OUTPUT –2 –4 –6 –8 TIME (ns) Figure 35. Overdrive Recovery 100 0pF 1pF –25 –50 – 100mV p-p ...
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AD8137 –5 PSRR = ∆V ∆V O, dm/ S –15 –25 –35 –PSRR –45 +PSRR –55 –65 –75 –85 0 FREQUENCY (MHz) Figure 41. PSRR vs. Frequency 1 0 –1 –2 –3 –4 –5 –6 – ...
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V OS OS, dm 0.1 0 –0.1 –0.2 –0.3 –40 – TEMPERATURE (°C) Figure 47. Offset Voltage vs. Temperature 1.2 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 0.50 1.50 2.50 ...
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AD8137 –1 = ± –2 –3 –4 –5 –5 –4 –3 –2 – OCM Figure 53. V vs. V Input Voltage O, cm OCM –20 –40 ...
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V = ± OCM –5 –4 –3 –2 – POWER-DOWN VOLTAGE (V) Figure 59. Supply Current vs. Power-Down Voltage Rev. D ...
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AD8137 TEST CIRCUITS V TEST TEST SIGNAL SOURCE V TEST TEST SIGNAL SOURCE R F 50Ω 1kΩ G 52.3Ω + AD8137 MIDSUPPLY V OCM 52.3Ω – 50Ω 1kΩ Figure ...
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THEORY OF OPERATION The AD8137 is a low power, low cost, fully differential voltage feedback amplifier that features a rail-to-rail output stage, common-mode circuitry with an internally derived common- mode reference voltage, and bias shutdown circuitry. The amplifier uses two ...
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AD8137 APPLICATIONS INFORMATION ANALYZING A TYPICAL APPLICATION WITH MATCHED R AND R NETWORKS F G Typical Connection and Definition of Terms Figure 64 shows a typical connection for the AD8137, using matched external R /R networks. The differential input F ...
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The differential output voltage noise contains contributions from the AD8137’s input voltage noise and input current noise as well as those from the external feedback networks. The contribution from the input voltage noise spectral density is computed as R ...
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AD8137 +2.5V V GND IN –2.5V The input impedance of a conventional inverting op amp configuration is simply R ; however higher in Equation 19 G because a fraction of the differential output voltage appears at the summing ...
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Estimating DC Errors Primary differential output offset errors in the AD8137 are due to three major components: the input offset voltage, the offset between the V and V input currents interacting with the AN AP feedback network resistances, and the ...
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AD8137 Figure 67 shows the AD8137 in a unity-gain configuration, and with the following discussion, provides a good example of how to provide a proper termination Ω environment. 0.1F 2V p-p 50 1k ...
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GND V 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 –140 –150 –160 –170 100 FREQUENCY (kHz) Figure 70. AD8137 Performance on Single 5 V Supply, −1.82 dBFS ...
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AD8137 OUTLINE DIMENSIONS 0.25 (0.0098) 0.10 (0.0040) COPLANARITY PIN 1 INDICATOR 0.90 MAX 0.85 NOM SEATING PLANE 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2441) 4.00 (0.1574) 1 5.80 (0.2284) 3.80 (0.1497) 4 1.27 (0.0500) BSC 1.75 (0.0688) 1.35 (0.0532) ...
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... AD8137YCP-REEL –40°C to +125°C AD8137YCPZ-R2 –40°C to +125°C AD8137YCPZ-REEL –40°C to +125°C AD8137YCPZ-REEL7 –40°C to +125°C AD8137YCP-EBZ AD8137YR-EBZ RoHS Compliant Part; # denotes that RoHS part may be top or bottom marked. Package Description 8-Lead Standard Small Outline Package (SOIC_N) ...
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AD8137 NOTES ©2004–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04771-0-7/10(D) Rev Page ...