Datasheet LT1795 (Analog Devices) - 4

LT1795
W U U SMALL-SIGNAL BANDWIDTH RSD = 0
Ω
, IS = 30mA per Amplifer, VS =
±
15V, RSD = 51k
Ω
, IS = 15mA per Amplifer, VS =
±
15V, Peaking
≤
1dB, RL = 25
Ω
Peaking
≤
1dB, RL = 25
Ω
–3dB BW –3dB BW A A V RF RG (MHz) V RF RG (MHz)
–1 976 976 44 –1 976 976 30 1 1.15k — 53 1 1.15k — 32 2 976 976 48 2 976 976 32 10 649 72 46 10 649 72 27
W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Ambient Output Saturation Voltage vs Output Short-Circuit Current vs Temperature Junction Temperature Junction Temperature
40 V+ 2.0 V V V S = ±15V S = ±15V S = ±15V –1 RL = 2k 35 AV = 1 1.8 RL = ∞ –2 R 30 R L = 25Ω SD = 0Ω –3 1.6 25 –4 1.4 20 SOURCING 1.2 4 15 R SINKING SD = 51kΩ 3 RL = 25Ω 1.0 10 2 0.8 5 OUTPUT SATURATION VOLTAGE (V) SUPPLY CURRENT PER AMPLIFIER (mA) 1 RL = 2k OUTPUT SHORT-CIRCUIT CURRENT (A) 0 V– 0.6 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) LT1795 G01 LT1795 G02 LT1795 G03
Second Harmonic Distortion vs Third Harmonic Distortion vs SHDN Pin Current vs Voltage Frequency Frequency
0.6 –40 –40 VS = ±15V AV = 2 DIFFERENTIAL AV = 2 DIFFERENTIAL VSHDNREF = 0V VOUT = 20VP-P V 0.5 –50 OUT = 20VP-P V –50 S = ±15V VS = ±15V RLOAD = 50Ω RLOAD = 50Ω I 0.4 –60 Q PER AMPLIFIER –60 IQ PER AMPLIFIER IQ = 5mA IQ = 5mA 0.3 –70 –70 I IQ = 10mA Q = 10mA IQ = 20mA 0.2 –80 DISTORTION (dBc) –80 DISTORTION (dBc) CURRENT INTO SHDN PIN (mA) I 0.1 –90 Q = 15mA –90 I I Q = 15mA Q = 20mA 0 –100 –100 0 1 2 3 4 5 10k 100k 1M 10k 100k 1M VOLTAGE APPLIED AT SHDN PIN (V) FREQUENCY (Hz) FREQUENCY (Hz) LT1795 G05 LT1795 G06 1795 G04 1795fa 4