LT1126/LT1127
TYPICAL APPLICATI S
Low Noise, Wideband, Gain = 100 Amplifier with High Input Impedance
1.1k
INPUT
120
–
1/4
LT1127
+
1.1k
120
–
1/4
LT1127
+
1.1k
120
–
1/4
LT1127
+
2.4k
7.5k
500Ω
2.4k
–
1/4
LT1127
+
OUTPUT
2.4k
–3dB BANDWIDTH = 910 kHz
GAIN BANDWIDTH PRODUCT = 91.0MHz
WIDEBAND NOISE = 3.2nV/√Hz = 1.85nV/√Hz REFERRED TO INPUT
√3
RMS NOISE DC TO FULL BANDWIDTH = 21.2µV REFERRED TO INPUT
LT1126 • TA05
SCHE ATIC DIAGRA (1/2 LT1126, 1/4 LT1127)
Q9
Q10
NON-INVERTING
INPUT (+)
INVERTING
INPUT (–)
Q7
21k
Q3
Q8
V–
Q1A Q1B
Q13
360µA
570µA
100µA
200pF 21k
Q17
3.6k
3.6k
5pF
Q18
Q25
Q19
Q20
Q27
Q26
Q2B
200µA
Q2A
400
Q30
67pF
V+
20pF
Q22
Q11
Q12 Q15
Q16
100µA
200 6k 200
V+
Q23
Q24
6k 50
200µA
V+
Q28
20
OUTPUT
20
Q29
V–
LT1126 • TA06
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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