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AD8307 Scheda tecnica(PDF) 3 Page - Analog Devices |
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AD8307 Scheda tecnica(HTML) 3 Page - Analog Devices |
3 / 24 page AD8307 Rev. C | Page 3 of 24 SPECIFICATIONS VS = 5 V, TA = 25°C, RL ≥ 1 MΩ, unless otherwise noted. Table 1. Parameter Conditions Min Typ Max Unit GENERAL CHARACTERISTICS Input Range (±3 dB Error) From noise floor to maximum input 92 dB Input Range (±1 dB Error) From noise floor to maximum input 88 dB Logarithmic Conformance f ≤ 100 MHz, central 80 dB ±0.3 ±1 dB f = 500 MHz, central 75 dB ±0.5 dB Logarithmic Slope Unadjusted1 23 25 27 mV/dB vs. Temperature 23 27 mV/dB Logarithmic Intercept Sine amplitude, unadjusted2 20 μV Equivalent sine power in 50 Ω −87 −84 −77 dBm vs. Temperature −88 −76 dBm Input Noise Spectral Density Inputs shorted 1.5 nV/√Hz Operating Noise Floor RSOURCE = 50 Ω/2 −78 dBm Output Resistance Pin 4 to ground 10 12.5 15 kΩ Internal Load Capacitance 3.5 pF Response Time Small signal, 10% to 90%, 400 ns 0 mV to100 mV, CL = 2 pF Large signal, 10% to 90%, 500 ns 0 V to 2.4 V, CL = 2 pF Upper Usable Frequency3 500 MHz Lower Usable Frequency AC-coupled input 10 Hz AMPLIFIER CELL CHARACTERISTICS Cell Bandwidth −3 dB 900 MHz Cell Gain 14.3 dB INPUT CHARACTERISTICS DC Common-Mode Voltage AC-coupled input 3.2 V Common-Mode Range Either input (small signal) −0.3 1.6 VS − 1 V DC Input Offset Voltage4 RSOURCE ≤ 50 Ω 50 500 μV Drift 0.8 μV/°C Incremental Input Resistance Differential 1.1 kΩ Input Capacitance Either pin to ground 1.4 pF Bias Current Either input 10 25 μA POWER INTERFACES Supply Voltage 2.7 5.5 V Supply Current VENB ≥ 2 V 8 10 mA Disabled VENB ≤ 1 V 150 750 μA 1 This can be adjusted downward by adding a shunt resistor from the output to ground. A 50 kΩ resistor reduces the nominal slope to 20 mV/dB. 2 This can be adjusted in either direction by a voltage applied to Pin 5, with a scale factor of 8 dB/V. 3 See the Operation Above 500 MHz section. 4 Normally nulled automatically by internal offset correction loop. May be manually nulled by a voltage applied between Pin 3 and ground; see the Applications Information section. |
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