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LTC6401IUD-14-TRPBF Datasheet(PDF) 5 Page - Linear Technology |
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LTC6401IUD-14-TRPBF Datasheet(HTML) 5 Page - Linear Technology |
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5 / 16 page  LTC6401-14 5 640114f AC ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS Frequency Response Gain 0.1dB Flatness S21 Phase and Group Delay vs Frequency SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS 140MHz Input Signal HD2,140M/ HD3,140M Second/Third Order Harmonic Distortion VOUT = 2VP-P, RL = 200Ω –79/–57 dBc VOUT = 2VP-P, No RL –87/–69 dBc IMD3,140M Third-Order Intermodulation (f1 = 139.5MHz f2 = 140.5MHz) VOUT = 2VP-P Composite, RL = 200Ω –70 dBc VOUT = 2VP-P Composite, No RL –81 dBc OIP3,140M Equivalent Third-Order Output Intercept Point (f1 = 139.5MHz f2 = 140.5MHz) VOUT = 2VP-P Composite, No RL (Note 7) 44.5 dBm P1dB,140M 1dB Compression Point RL = 375Ω (Notes 5, 7) 17.7 dBm NF140M Noise Figure RL = 375Ω (Note 5) 7.4 dB eIN,140M Input Referred Voltage Noise Density Includes Resistors (Short Inputs) 2.5 nV/√⎯H⎯z eON,140M Output Referred Voltage Noise Density Includes Resistors (Short Inputs) 12.5 nV/√⎯H⎯z IMD3,130M/150M Third-Order Intermodulation (f1 = 130MHz f2 = 150MHz) Measure at 170MHz VOUT = 2VP-P Composite, RL = 375Ω –70 –61 dBc Specifications are at TA = 25°C. V+ = 3V, V– = 0V, VOCM = 1.25V, ⎯E⎯N⎯A⎯B⎯L⎯E = 0V, No RL unless otherwise noted. Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: Input pins (+IN, –IN) are protected by steering diodes to either supply. If the inputs go beyond either supply rail, the input current should be limited to less than 10mA. Note 3: The LTC6401C and LTC6401I are guaranteed functional over the operating temperature range of –40°C to 85°C. Note 4: The LTC6401C is guaranteed to meet specified performance from 0°C to 70°C. It is designed, characterized and expected to meet specified performance from –40°C to 85°C but is not tested or QA sampled at these temperatures. The LTC6401I is guaranteed to meet specified performance from –40°C to 85°C. Note 5: Input and output baluns used. See Test Circuit A. Note 6: Measured using Test Circuit B. RL = 87.5Ω per output. Note 7: Since the LTC6401-14 is a feedback amplifier with low output impedance, a resistive load is not required when driving an AD converter. Therefore, typical output power is very small. In order to compare the LTC6401-14 with amplifiers that require 50Ω output load, the LTC6401-14 output voltage swing driving a given RL is converted to OIP3 and P1dB as if it were driving a 50Ω load. Using this modified convention, 2VP-P is by definition equal to 10dBm, regardless of actual RL. FREQUENCY (MHz) 0 0 –50 –100 –150 –200 0.8 0.6 0.4 0.2 0 200 400 600 800 1000 640114 G03 PHASE GROUP DELAY TEST CIRCUIT B FREQUENCY (MHz) 10 100 1000 3000 20 18 16 14 10 8 6 4 2 0 12 640114 G01 TEST CIRCUIT B FREQUENCY (MHz) 10 100 1000 3000 1.0 0.8 –0.8 0.6 –0.6 0.4 –0.4 0.2 –0.2 0 –1.0 640114 G02 |
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