Datasheet AD8260 (Analog Devices) - 3

FabricanteAnalog Devices
DescripciónHigh Current Driver Amplifier and Digital VGA/Preamplifier with 3 dB Steps
Páginas / Página32 / 3 — Data Sheet. AD8260. SPECIFICATIONS. Table 1. Parameter. Test …
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Data Sheet. AD8260. SPECIFICATIONS. Table 1. Parameter. Test Conditions/Comments. Min. Typ. Max. Unit

Data Sheet AD8260 SPECIFICATIONS Table 1 Parameter Test Conditions/Comments Min Typ Max Unit

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Data Sheet AD8260 SPECIFICATIONS
VS (supply voltage) = 3.3 V, TA = 25°C, preamplifier gain = 2× (RFB1 = RFB2 = 100 Ω), VVMDO = VS/2, f = 10 MHz, CL = 5 pF, RLOAD = 500 Ω, DGA differential output. All dBm values are referenced to 50 Ω, gain code 1011, unless otherwise specified.
Table 1. Parameter Test Conditions/Comments Min Typ Max Unit
DRIVER AMPLIFIER—GENERAL PARAMETERS −3 dB Small Signal Bandwidth VOUT = 10 mV p-p, RLOAD = 500 Ω 195 MHz VOUT = 10 mV p-p, RLOAD = 50 Ω 120 MHz VOUT = 10 mV p-p, RLOAD = 10 Ω 85 MHz −3 dB Large Signal Bandwidth VOUT = 1 V p-p 195 MHz VOUT = 2 V p-p 190 MHz VOUT = 2 V p-p, RLOAD = 50 Ω 180 MHz Slew Rate VOUT = 1 V p-p 730 V/µs VOUT = 2 V p-p 725 V/µs VOUT = 2 V p-p, RLOAD = 50 Ω 620 V/µs Gain Nominal gain with internal gain setting resistors 3.0 3.52 dB Input Voltage Noise f = 10 MHz 9.5 nV/√Hz Noise Figure RS = 100 Ω (differential, 2 × 50 Ω that convert 17.6 dB differential DAC output currents to differential voltage) Output-Referred Noise Gain = 3.52 dB (1.5×), includes internal gain setting 14.3 nV/√Hz resistors Output Impedance DC to 10 MHz, VS = ±3.3 V ≤1.7 Ω Output Current RLOAD = 1 Ω, VIN = ±0.5 V ±310 mA Output Signal Range RLOAD ≥ 500 Ω VMDO ± 1.5 V VS = +5 V VMDO ± 2.3 V VS = ±5 V ±4.7 V Input Signal Range Differential input signal 2 V p-p Output Offset Voltage Gain = 3.52 dB (1.5×), maximum and minimum limits −20 ±5 +20 mV are 3σ DRIVER AMPLIFIER—DYNAMIC PERFORMANCE Harmonic Distortion VOUT = 1 V p-p HD2 f = 1 MHz −84 dBc HD3 −85 dBc HD2 f = 10 MHz −83 dBc HD3 −70 dBc Harmonic Distortion VOUT = 2 V p-p HD2 f = 1 MHz −78 dBc HD3 −76 dBc HD2 f = 10 MHz −70 dBc HD3 −58 dBc Input 1 dB Compression Point 13 dBm Multitone Power Ratio (MTPR, In-Band) RLOAD = 50 Ω, VOUT = 1.4 V p-p max, 10 tones, 2 MHz to −49 dBc 22 MHz with missing tone at 12 MHz (spacing 2 MHz) RLOAD = 50 Ω, VOUT = 1.4 V p-p max, 16 tones, 2 MHz to −43 dBc 38 MHz with missing tones at 10 MHz, 20 MHz, 30 MHz, and 40 MHz (spacing 2 MHz) Two-Tone Intermodulation Distortion (IMD3) VOUT = 1 V p-p, f1 = 10 MHz, f2 = 11 MHz −90 dBc VOUT = 2 V p-p, f1 = 10 MHz, f2 = 11 MHz −71 dBc VOUT = 1 V p-p, f1 = 45 MHz, f2 = 46 MHz −60 dBc VOUT = 2 V p-p, f1 = 45 MHz, f2 = 46 MHz −48 dBc Output Third-Order Intercept VOUT = 1 V p-p, f = 10 MHz 43 dBm VOUT = 2 V p-p, f = 10 MHz 40 dBm VOUT = 1 V p-p, f = 45 MHz 28 dBm VOUT = 2 V p-p, f = 45 MHz 28 dBm Two-Tone Intermodulation Distortion (IMD3), VOUT = 1 V p-p, f1 = 10 MHz, f2 = 11 MHz −69 dBc RLOAD = 50 Ω VOUT = 2 V p-p, f1 = 10 MHz, f2 = 11 MHz −72 dBc VOUT = 1 V p-p, f1 = 45 MHz, f2 = 46 MHz −51 dBc VOUT = 2 V p-p, f1 = 45 MHz, f2 = 46 MHz −48 dBc Rev. B | Page 3 of 32 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS THEORY OF OPERATION OVERVIEW HIGH CURRENT DRIVER AMPLIFIER PRECAUTIONS TO BE OBSERVED DURING HALF-DUPLEX OPERATION VMID BUFFER PREAMPLIFIER PREAMPLIFIER NOISE DGA GAIN CONTROL OUTPUT STAGE ATTENUATOR SINGLE-SUPPLY OPERATION AND AC COUPLING POWER-UP/POWER-DOWN SEQUENCE LOGIC INTERFACES APPLICATIONS INFORMATION EVALUATION BOARD CONNECTING THE EVALUATION BOARD OUTLINE DIMENSIONS ORDERING GUIDE