AD8139ARDZ Analog Devices Inc, AD8139ARDZ Datasheet
AD8139ARDZ
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AD8139ARDZ Summary of contents
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FEATURES Fully differential Low noise 2.25 nV/√Hz 2.1 pA/√Hz Low harmonic distortion 98 dBc SFDR @ 1 MHz 85 dBc SFDR @ 5 MHz 72 dBc SFDR @ 20 MHz High speed 410 MHz ...
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AD8139 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagrams............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... ± .................................................................. 3 S OCM ...
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SPECIFICATIONS V = ± OCM T = 25°C, differential gain = kΩ Table 1. Parameter DIFFERENTIAL INPUT PERFORMANCE Dynamic Performance −3 dB Small Signal Bandwidth −3 ...
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AD8139 Parameter POWER SUPPLY Operating Range Quiescent Current +PSRR −PSRR OPERATING TEMPERATURE RANGE Conditions Change ± Change in −V = ± Rev Page Min Typ Max Unit +4.5 ...
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2 OCM T = 25°C, differential gain = kΩ Table 2. Parameter DIFFERENTIAL INPUT PERFORMANCE Dynamic Performance −3 dB Small Signal Bandwidth −3 dB ...
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AD8139 Parameter POWER SUPPLY Operating Range Quiescent Current +PSRR −PSRR OPERATING TEMPERATURE RANGE Conditions Change ± Change in −V = ± Rev Page Min Typ Max Unit +4.5 ...
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ABSOLUTE MAXIMUM RATINGS Table 3. 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 damage ...
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AD8139 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS AD8139 – OCM +OUT CONNECT Figure 5. 8-Lead SOIC Pin Configuration Table 5. Pin Function Descriptions Pin No. Mnemonic Description 1 ...
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TYPICAL PERFORMANCE CHARACTERISTICS Unless otherwise noted, differential gain = +1, R circuit in Figure 57 for the definition of terms –1 –2 –3 –4 –5 –6 – –8 –9 –10 – 200Ω ...
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AD8139 200Ω –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 – 0.1V p –12 10 100 FREQUENCY (MHz) Figure 13. Small Signal Frequency Response for Various Loads ...
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V = 2.0V p –40 –50 – ±5V S –70 –80 –90 –100 –110 –120 –130 0 FREQUENCY (MHz) Figure 19. Second Harmonic Distortion vs. Frequency and Supply Voltage – 2.0V ...
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AD8139 – 2.0V p –40 –50 –60 – 200Ω F – 500Ω F –90 –100 –110 R = 1kΩ F –120 –130 0.1 1 FREQUENCY (MHz) Figure 25. Second Harmonic Distortion vs. ...
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V = 100mV p 0pF 0pF 2pF ±5V ±5V –25 –50 –75 –100 TIME (ns) ...
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AD8139 1.5 ±5V 1.0 +5V 0.5 0 –0 p IN, dm –1.0 –1.5 TIME (ns) Figure 37. V Large Signal Transient Response OCM 0.2V p-p IN, cm INPUT CMRR ...
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R = 1kΩ PSRR = ΔV /Δ –10 –20 –30 –40 –PSRR –50 +PSRR –60 –70 –80 –90 –100 1 10 100 FREQUENCY (MHz) Figure 43. PSRR vs. Frequency 100 ...
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AD8139 3 2.5 I BIAS 2.0 1.5 1.0 –40 – TEMPERATURE (°C) Figure 49. Input Bias and Offset Current vs. Temperature ± –2 –4 –6 ...
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TEMPERATURE (°C) Figure 55. V Bias Current vs. Temperature OCM TEST CIRCUITS V TEST SIGNAL SOURCE V TEST TEST SIGNAL SOURCE 80 100 ...
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... Differential gain is set by external resistors, similar to traditional voltage- feedback operational amplifiers. The common-mode level of the output voltage is set by a voltage at the V independent of the input common-mode voltage. The AD8139 has an H-bridge input stage for high slew rate, low noise, and low distortion operation and rail-to-rail output stages that provide maximum dynamic output range ...
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... Feedback Factor Notation When working with differential amplifiers convenient to introduce the feedback factor β, which is defined as β This notation is consistent with conventional feedback analysis and is very useful, particularly when the two feedback loops are /β (7) not matched. ...
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AD8139 For proper operation, the voltages within their respective linear ranges. Calculating Input Impedance The input impedance of the circuit in Figure 59 depends on whether the amplifier is being driven by a single-ended or a differential ...
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One way to avoid the input common-mode swing limitation is to bias V and V at midsupply. In this case REF swinging about a baseline at 2.5 V, and V low-Z 2.5 V source. V now has an ...
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AD8139 Driving a Capacitive Load A purely capacitive load reacts with the bondwire and pin inductance of the AD8139, resulting in high frequency ringing in the transient response and loss of phase margin. One way to minimize this effect is ...
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Because this is a single-ended-to-differential application on a single supply, the input common-mode voltage swing must be checked. From Figure 64, β = 0.52, V OCM 1.1 V p-p swinging about ground. Using Equation 16, V calculated to be 0.53 ...
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... AD8139ARD-REEL7 –40°C to +125°C 1 AD8139ARDZ –40°C to +125°C 1 AD8139ARDZ-REEL –40°C to +125°C 1 AD8139ARDZ-REEL7 –40°C to +125°C AD8139ACP-R2 –40°C to +125°C AD8139ACP-REEL –40°C to +125°C AD8139ACP-REEL7 –40°C to +125°C 1 AD8139ACPZ-R2 –40°C to +125°C ...