Datasheet AD8432 (Analog Devices) - 4

AD8432 Data Sheet Parameter Conditions Min Typ Max Unit
Two-Tone IMD3 Distortion RS = 50 Ω, RIN unterminated 10 MHz VOUT = 1 V p-p, f1 = 9.5 MHz, f2 = 10.5 MHz −89.1 dBc VOUT = 2 V p-p, f1 = 9.5 MHz, f2 = 10.5 MHz −66.0 dBc 1 MHz VOUT = 1 V p-p, f1 = 0.9 MHz, f2 = 1.1 MHz −88.9 dBc VOUT = 2 V p-p, f1 = 0.9 MHz, f2 = 1.1 MHz −73.7 dBc Input 1dB Compression Point f = 1 MHz 7.5 dBm f = 10 MHz 7.7 dBm Output Third-Order Intercept

1 MHz VOUT = 1 V p-p of composite tones 29.7 dBV rms VOUT = 2 V p-p of composite tones 28.2 dBV rms 10 MHz VOUT = 1 V p-p of composite tones 23.2 dBV rms VOUT = 2 V p-p of composite tones 24.2 dBV rms 1 MHz VOUT = 1 V p-p of composite tones, reference to 50 Ω 42.7 dBm VOUT = 2 V p-p of composite tones, reference to 50 Ω 41.2 dBm 10 MHz VOUT = 1 V p-p of composite tones, reference to 50 Ω 36.2 dBm VOUT = 2 V p-p of composite tones, reference to 50 Ω 37.2 dBm Crosstalk

VOUT = 1 V p-p, f = 1 MHz 102 dB DC PERFORMANCE Input Offset Voltage −6.25 +1 +6.25 mV Input Offset Voltage Drift 300 μV/°C INPUT CHARACTERISTICS Input Voltage Range AC-coupled 1.2 V p-p Input Resistance RFB = 150 Ω 50 Ω RFB = 226 Ω 75 Ω RFB = 301 Ω 100 Ω RFB = 619 Ω 200 Ω RFB = 3.57 kΩ 1 kΩ RFB = ∞, f = 100 kHz 6.2 kΩ Input Capacitance 6 pF Input Common-Mode Voltage 3.25 V OUTPUT CHARACTERISTCS Output Common-Mode Voltage 2.5 V Output Offset Voltage −25 +4 +25 mV Output Voltage Swing 4.8 V p-p Output Resistance Single-ended, either output <0.1 Ω Output Resistance in Shutdown Mode Single-ended, either output 2.5 kΩ Output Short-Circuit Current RL = 10 Ω differential 77 mA Enable Response Time ENBON (enable high to output on) 200 μs ENBOFF (enable low to output off ) 200 μs POWER SUPPLY Supply Voltage 4.5 5 5.5 V Quiescent Current ENB = 5 V 24 mA Over Temperature TA = −40°C 21 mA TA = +85°C 27 mA Supply Current in Shutdown Mode ENB = GND 50 100 μA Power Dissipation 120 mW PSRR G = 24.08 dB, f = 100 kHz, no bypass capacitors −82 dB Rev. D | Page 4 of 32 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE MAXIMUM POWER DISSIPATION ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS THEORY OF OPERATION LOW NOISE AMPLIFIER (LNA) GAIN SETTING TECHNIQUE ACTIVE INPUT RESISTANCE MATCHING APPLICATIONS INFORMATION TYPICAL SETUP I/Q DEMODULATION FRONT END DIFFERENTIAL-TO-SINGLE-ENDED CONVERSION EVALUATION BOARD CONNECTION AND OPERATION Power Supply Input Termination Setting the Amplifier Gain Output SCHEMATIC OUTLINE DIMENSIONS ORDERING GUIDE NOTES NOTES NOTES