LT1207 W UTYPICAL PERFOR A CE CHARACTERISTICSOutput Impedance in Shutdown2nd and 3rd Harmonic DistortionOutput Impedance vs Frequencyvs Frequencyvs Frequency 100 100k –30 VS = ±15V A V V = 1 S = ±15V IO = 0mA R V F = 1k O = 2VP-P V –40 S = ±15V ) RSHDN = 121k ) 2nd Ω 10 Ω 10k RL = 10Ω –50 3rd 2nd RSHDN = 0Ω 1 1k –60 DISTORTION (dBc) –70 RL = 30Ω 0.1 3rd OUTPUT IMPEDANCE ( 100 OUTPUT IMPEDANCE ( –80 0.01 10 –90 100k 1M 10M 100M 100k 1M 10M 100M 1 2 3 4 5 6 7 8 9 10 FREQUENCY (MHz) FREQUENCY (Hz) FREQUENCY (Hz) LT1207 • TPC21 LT1207 • TPC19 LT1207 • TPC20 3rd Order Intercept vs FrequencyTest Circuit for 3rd Order Intercept 60 VS = ±15V R + L = 50Ω R 50 F = 590Ω 1/2 LT1207 P R O G = 64.9Ω – 40 590Ω 30 65Ω 50Ω MEASURE INTERCEPT AT PO 3rd ORDER INTERCEPT (dBm) LT1207 • TPC23 20 10 0 5 10 15 20 25 30 FREQUENCY (MHz) LT1207 • TPC22 7