LT1739 データシートの表示（PDF） - Linear Technology
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LT1739 Datasheet PDF : 20 Pages
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LT1739
TYPICAL PERFOR A CE CHARACTERISTICS
Differential Harmonic Distortion
vs Supply Current
–40
VO = 10VP-P
–45
VS = ±12V
AV = 10
–50
RL = 50Ω
–55
f = 1MHz, HD3
–60
–65
–70
f = 100kHz, HD2
–75
–80
–85
2
f = 100kHz, HD3
f = 1MHz, HD2
3 4 5 6 7 8 9 10 11
ISUPPLY PER AMPLIFIER (mA)
1739 G18
Undistorted Output Swing
vs Frequency
20
15
10
SFDR > 40dB
5
TA = 25°C
VS = ±12V
AV = 10
RL = 50Ω
IS PER AMPLIFIER = 10mA
0
100k
300k
1M
3M
FREQUENCY (Hz)
10M
1739 G19
TEST CIRCUIT
12V
V+
RBIAS
+IN A +
A
–IN A –
SHDN
VOUT(P-P)
OUT A
12.7Ω
10k
–12V
1k
1:2*
OUT (+)
EIN
SPLITTER
49.9Ω
OUT (–)
110Ω
110Ω
0.01µF
1k
RL ≈ 50Ω
MINICIRCUITS
ZSC5-2-2
10k
–
–IN B
B
OUT B
+IN B +
SHDNREF
12.7Ω
1739 TC
SUPPLY BYPASSING
+
0.1µF
+
0.1µF
4.7µF +
4.7µF
4.7µF
12V
0.1µF
–12V
100 LINE LOAD
V–
–12V
*COILCRAFT X8390-A OR EQUIVALENT
VOUTP-P AMPLITUDE SET AT EACH AMPLIFIER OUTPUT
DISTORTION MEASURED ACROSS LINE LOAD
6
1739fas, sn1739
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