AD8260WACPZ-WP Analog Devices, AD8260WACPZ-WP Datasheet
AD8260WACPZ-WP
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AD8260WACPZ-WP Summary of contents
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... Rev. 0 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. ...
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AD8260 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 6 ESD Caution .................................................................................. 6 Pin Configuration and Function Descriptions ...
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SPECIFICATIONS V (supply voltage 25°C, preamplifier gain = 2× DGA differential output. All dBm values are referenced to 50 Ω, gain code 1011, unless otherwise specified. Table 1. Parameter DRIVER AMPLIFIER—GENERAL PARAMETERS ...
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AD8260 Parameter Output Third-Order Intercept Ω LOAD PREAMPLFIER AND VGA—GENERAL PARAMETERS −3 dB Small Signal Bandwidth −3 dB Large Signal Bandwidth Slew Rate Input Voltage Noise Noise Figure Output-Referred Noise Output Impedance Output Signal Range (per Pin) ...
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Parameter ACCURACY Absolute Gain Error Gain Law Conformance (DNL) GAIN CONTROL Gain Step per Code Gain Range Response Time LOGIC INTERFACES High Level Input Voltage Low Level Input Voltage Logic Input Bias Current POWER SUPPLY Supply Voltage Quiescent Current PSRR ...
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AD8260 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Voltage Supply Voltage (VPOS, VNEG) Input Voltage (INxx, PRAI, FDBK, VMDI, VOCM) Logic Voltages Temperature Operating Temperature Range Storage Temperature Range Lead Temperature (Soldering, 60 sec) 1 Thermal Data Maximum Junction Temperature θ ...
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic Description VMDO VMID Buffer Output. Requires robust ac decoupling with a capacitance of 0.1 μF capacitor or greater. 2 TXEN Driver Enable. Logic threshold ...
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AD8260 TYPICAL PERFORMANCE CHARACTERISTICS V (supply voltage 25° the driver amplifier = 500 Ω, T LOAD 200mV p-p OUT T = –40° ...
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HD2 p-p OUT HD3 p-p OUT –40 HD2 p-p OUT HD3 p-p OUT –50 –60 –70 –80 –90 –100 ...
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AD8260 0 –10 –20 –30 –40 –50 –60 –70 –80 – FREQUENCY (MHz) Figure 15. Missing Tone Power Ratio for the High Current Driver 0. 5pF LOAD NONINVERTING 0.15 0.10 ...
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R = 50Ω LOAD NONINVERTING 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 –30 –20 – TIME (ns) Figure 21. Large-Signal Pulse Response of the High Current Driver for Various Values of Load Capacitance, ...
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AD8260 27 1011 24 1010 21 1001 18 1000 15 0111 12 0110 9 0101 6 0100 3 0011 0 0010 –3 0001 –6 –9 –12 100k 1M 10M FREQUENCY (Hz) Figure 27. Frequency Response for a Supply Voltage (V ...
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GAIN CODE = 1011 10 100k 1M FREQUENCY (Hz) Figure 33. Output-Referred Noise vs. Frequency for the VGA/Preamplifier at Maximum Gain—See Figure 61 100 10 1 0001 0010 0011 0100 0101 0110 0111 GAIN SELECT CODE Figure 34. Input-Referred ...
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AD8260 0 GAIN CODE = 1011 p-p OUT –20 –40 HD2 HD3 –60 –80 –100 –120 1M 10M FREQUENCY (Hz) Figure 39. Harmonic Distortion (HD2, HD3) vs. Frequency for the VGA/Preamplifier—See Figure 62 0 – ...
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V = +3V, +5V, AND ±5V S 0.5 0 –0.5 –1.0 –1.5 –3 –2 – TIME (ns) Figure 45. Large-Signal Pulse Response for Various Values of Supply Voltage for the VGA/Preamplifier ...
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AD8260 TEST CIRCUITS Figure 51. Test Circuit for Frequency Response of the High Current Driver Figure 52. Test Circuit for Input-Referred and Output-Referred Noise of the High Current Driver LP FILTER SIGNAL GENERATOR 50Ω Figure 54. Test Circuit for Harmonic ...
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SIGNAL GENERATORS AD8260—HIGH CURRENT DRIVER 50Ω 1kΩ 0.1µF INRN 1:1 1kΩ INRP 50Ω 0.1µF Figure 55. Test Circuit for IMD3 and OIP3 of the High Current Driver AD8260—HIGH CURRENT DRIVER 0.1µF INRN 50Ω – 0.1µF INRP + VOCM 50Ω VMDO ...
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AD8260 Figure 59. Test Circuit for Frequency Response and Group Delay of the VGA/Preamplifier 0.1µF VMDO Figure 61. Test Circuit for Input-Referred and Output-Referred Noise Measurements of the VGA/Preamplifier NETWORK ANALYZER 50Ω AD8260—VGA/PREAMPLIFIER 0.1µF + PREAMP 50Ω – 100Ω 100Ω ...
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AD8260—VGA/PREAMPLIFIER LP FILTER 0.1µF + 50Ω PREAMP 50Ω – SIGNAL GENERATOR Figure 62. Test Circuit for Harmonic Distortion Measurements of the VGA/Preamplifier AD8260—VGA/PREAMPLIFIER 0.1µF + PREAMP 50Ω – 50Ω Figure 63. Test Circuit for IP1dB, Pulse Response, Overdrive Recovery, and ...
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... The small-signal −3 dB bandwidth of the driver amplifier is 195 MHz and the large-signal bandwidth is >115 MHz, even when driving a 50 Ω load. The device is fabricated on the Analog Devices, Inc., high speed (eXtra Fast Complementary Bipolar) XFCB process. The pream- plifier and DGA feature low dc offset voltage, and a nominal gain range of − ...
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OR 3.3V 0.1µF 0V, 1.8V/3.3V 0.1µF 3.3V 0V, 1.8V/3.3V 1.8V OR 3.3V LOW-PASS AA FILTER 0.1µF INP ADC FS INPUT 0.1µF 2V p-p INN HIGH CURRENT DRIVER AMPLIFIER The high current driver amplifier can deliver very large output currents ...
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AD8260 PRECAUTIONS TO BE OBSERVED DURING HALF- DUPLEX OPERATION During receive, when the high current driver-amplifier is disabled, its gain setting resistors provide a signal path from input to output. To prevent inadvertent DAC signals from being transmitted while receiving ...
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Assuming 100 Ω FB1 FB2 noise simplifies to = × + × −out n 39 ...
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AD8260 SINGLE-SUPPLY OPERATION AND AC COUPLING When operating the AD8260 from a single supply, there are two bias options for VMDO. • Use an external low impedance midpoint reference at Pin VMDO and pull VMDI to VNCM to shut down ...
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APPLICATIONS INFORMATION The AD8260 is ideally suited for compact applications requiring high frequency and large current drive of complex modulation products. Because the driver is capable of providing up to 300 mA (using a 3.3 V supply rail) to very ...
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... AD8260 EVALUATION BOARD Analog Devices provides evaluation boards to customers as a support service so that the circuit designer can become familiar with the device in the most efficient way possible. The AD8260 evaluation board provides a fast, easy, and convenient means to assess the performance of the AD8260 before going through the inconvenience and expense of design and layout of a custom board ...
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CONNECTING THE EVALUATION BOARD Figure 69 shows an evaluation board with typical test connec- tions. The various pieces of test equipment are representative, and equivalent equipment may be substituted. The AD8260 includes two amplifier channels: a high current driver and ...
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AD8260 PULSE GENERATOR WITH DIFFERENTIAL OUTPUT HIGH CURRENT DRIVER INPUTS VGA OUTPUT (TO SCOPE) POWER SUPPLY + 5 V HIGH CURRENT DRIVER R OUTPUT LOAD SINGLE- ENDED VGA INPUT FUNCTION GENERATOR FOR VGA INPUT Figure 69. Typical Evaluation Board Connections ...
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C14 VMDO 0.1µF VPSB TXEN EN TX_EN VMDI DIS C13 L1 0.1µF VPSB 120 nH FB VPS C15 ENBL 0.1µF EN ENABLE DIS C23 R1 VGAP 0.1µF 453Ω C10 VGA _ OUT R2 0.1µF 453Ω VGAN L2 120nH FB –VS ...
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AD8260 Figure 71. AD8260-EVALZ Component Side Assembly Figure 72. AD8260-EVALZ Component Side Copper Figure 73. AD8260-EVALZ Secondary Side Copper Figure 74. AD8260-EVALZ Power Plane Rev Page ...
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Figure 75. AD8260-EVALZ Ground Plane Figure 76. Component Side Silkscreen Rev Page AD8260 ...
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... AD8260ACPZ-RL 1 −40°C to +105°C 1 AD8260ACPZ-WP −40°C to +105°C AD8260-EVALZ RoHS Compliant Part. ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 0.60 MAX 0.60 MAX 25 24 0.50 BSC 4.75 EXPOSED BSC SQ ...