link to page 4 link to page 4 link to page 5 link to page 5 link to page 11 AD8311ParameterConditionsMinTypMaxUnit MEASUREMENT MODE (f = 2.5 GHz) Input Impedance No termination resistor on RFIN 164 || 1.55 Ω || pF ±1 dB Dynamic Range TA = +25°C 42 dB −40°C < TA < +85°C 41 dB Maximum Input Level ±1 dB error −6.2 dBm Minimum Input Level ±1 dB error −47.7 dBm Slope2 22.5 mV/dB Intercept2 −60.6 dBm VSET Voltage—High Power In PIN = –10 dBm 1.14 V VSET Voltage—Low Power In PIN = –40 dBm 0.46 V Temperature Sensitivity PIN = –10 dBm 25°C ≤ TA ≤ 85°C −0.0004 dB/°C −40°C ≤ TA ≤ +25°C +0.0090 dB/°C OUTPUT INTERFACE VAPC (Pin 2) Minimum Output Voltage VSET ≤ 150mV 0.2 0.3 0.4 V Maximum Output Voltage IOUT = 3 mA 2.3 2.55 V RL = ∞ 2.4 2.65 V vs. Temperature 85°C, VPOS = 3 V, IOUT = 6 mA 2.54 V General Limit 2.7 V ≤ VPOS ≤ 5.5 V, RL = ∞ VPOS – 0.1 V Output Current Drive VSET = 1.5 V, RFIN = –50 dBm, source/sink 5/200 mA/μA Output Noise RF Input = 2 GHz, 0 dBm, fNOISE = 100 kHz, CFLT = 220 pF 170 nV/√Hz Small Signal Bandwidth RFIN = −10 dBm; from FLTR to VAPC 30 MHz Fall Time Input level = off to 0 dBm, 90% to 10% 120 ns Rise Time Input level = 0 dBm to off, 10% to 90% 270 ns Slew Rate 90% – 10%, VSET = 0.3 V, open loop 15 V/μs Response Time FLTR = Open 130 ns VSET INTERFACE VSET (Pin 3) Nominal Input Range RFIN = 0 dBm; measurement mode 1.4 V RFIN = −50 dBm; measurement mode 0.27 V Logarithmic Scale Factor 0.04 dB/mV Bias Current Source RFIN = −10 dBm; VSET = 1.4 V 0.26 μA Input Resistance 36 MΩ Slew Rate 14 V/μs POWER INTERFACE VPOS (Pin 1) Supply Voltage 2.7 5.5 V Quiescent Current 5 7.6 10.7 mA vs. Temperature –40°C ≤ TA ≤ +85°C 8.2 12.9 mA Power-On Time Time from VPOS high to VAPC within 1% of final value, 3 10 μs VSET ≤ 200 mV Power-Off Time Time from VPOS low to VAPC within 1% of final value, 100 2000 ns VSET ≤ 200 mV 1 VAPC (Pin 2) to VSET (Pin 3) with inversion stage, sinusoidal input signal. 2 Mean and standard deviation specifications are available in Tabl . e 4 Rev. A | Page 4 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION BASIC THEORY CONTROLLER-MODE LOG AMPS CONTROL LOOP DYNAMICS BASIC CONNECTIONS RANGE ON VSET AND RFIN TRANSIENT RESPONSE MOBILE HANDSET POWER CONTROL EXAMPLE POWER-ON AND POWER-OFF INPUT COUPLING OPTIONS TEMPERATURE DRIFT DEVICE CALIBRATION AND ERROR CALCULATION SELECTING CALIBRATION POINTS TO IMPROVE ACCURACY OVER A REDUCED RANGE DEVICE HANDLING EVALUATION BOARD OUTLINE DIMENSIONS ORDERING GUIDE
