Datasheet

4
®
BUF634
GAIN and PHASE vs FREQUENCY
vs LOAD CAPACITANCE
Frequency (Hz)
1M 10M 100M 1G
Phase (°)
0
–10
–20
–30
–40
–50
C
L
= 0
C
L
= 50pF
C
L
= 200pF
C
L
= 1nF
1 0
5
0
–5
–10
–15
Gain (dB)
Wide BW Mode
R
L
= 100Ω
R
S
= 50Ω
V
O
= 10mV
GAIN and PHASE vs FREQUENCY
vs LOAD CAPACITANCE
Frequency (Hz)
1M 10M 100M 1G
Phase (°)
0
–10
–20
–30
–40
–50
C
L
= 0pF
C
L
= 50pF
C
L
= 200pF
C
L
= 1nF
10
5
0
–5
–10
–15
Gain (dB)
Low I
Q
Mode
R
L
= 100Ω
R
S
= 50Ω
V
O
= 10mV
GAIN and PHASE vs FREQUENCY
vs LOAD RESISTANCE
Frequency (Hz)
1M 10M 100M 1G
Phase (°)
0
–10
–20
–30
–40
–50
R
L
= 1kΩ
R
L
= 100Ω
R
L
= 50Ω
10
5
0
–5
–10
–15
Gain (dB)
R
S
= 50Ω
V
O
= 10mV
Wide BW
Low I
Q
Low I
Q
Wide BW
GAIN and PHASE vs FREQUENCY
vs SOURCE RESISTANCE
Frequency (Hz)
1M 10M 100M 1G
Phase (°)
0
–10
–20
–30
–40
–50
R
S
= 0Ω
R
S
= 50Ω
R
S
= 100Ω
10
5
0
–5
–10
–15
Gain (dB)
Wide BW
Low I
Q
Low I
Q
Wide BW
R
L
= 100Ω
V
O
= 10mV
GAIN and PHASE vs FREQUENCY
vs TEMPERATURE
Frequency (Hz)
1M 10M 100M 1G
Phase (°)
0
–10
–20
–30
–40
–50
T
J
= –40°C
T
J
= 25°C
T
J
= 125°C
10
5
0
–5
–10
–15
Gain (dB)
Wide BW
Wide BW
Low I
Q
Low I
Q
R
L
= 100Ω
R
S
= 50Ω
V
O
= 10mV
GAIN and PHASE vs FREQUENCY
vs QUIESCENT CURRENT
Frequency (Hz)
1M 10M 100M 1G
Phase (°)
0
–10
–20
–30
–40
–50
I
Q
= 15mA
I
Q
= 9mA
I
Q
= 4mA
I
Q
= 2.5mA
I
Q
= 1.5mA
10
5
0
–5
–10
–15
Gain (dB)
R
L
= 100Ω
R
S
= 50Ω
V
O
= 10mV
TYPICAL PERFORMANCE CURVES
At T
A
= +25°C, V
S
= ±15V, unless otherwise noted.