Datasheet

LTC6084/LTC6085
8
60845fa
TYPICAL PERFORMANCE CHARACTERISTICS
Capacitive Load Handling Channel Separation vs Frequency
Total Harmonic Distortion and
Noise vs Frequency
Total Harmonic Distortion and
Noise vs Frequency
Total Harmonic Distortion and
Noise vs Output Voltage
Total Harmonic Distortion and
Noise vs Load Resistance
CAPACITIVE LOAD (pF)
OVERSHOOT (%)
60845 G18
50
20
15
10
5
25
30
35
40
45
0
10 100 1000 10000
V
S
= 5V
V
CM
= 2.5V
A
V
= –1
R
S
= 10Ω
R
S
= 50Ω
+
–
R
S
C
L
1k
1k
FREQUENCY (MHz)
CHANNEL SEPARATION (dB)
60845 G19
–90
–105
–100
–130
–125
–120
–115
–110
–95
–135
0.001 1 100.10.01
V
S
= 5V
V
CM
= 2.5V
T
A
= 25°C
FREQUENCY (kHz)
THD AND NOISE (%)
60845 G20
1
0.1
0.01
0.001
0.01 10 10010.1
V
S
= 3V
V
CM
= 1.5V
R
L
= 10k
A
V
= 2, V
IN
= 1V
P-P
A
V
= –2, V
IN
= 1V
P-P
A
V
= 1,
V
IN
= 1V
P-P
A
V
= 1, V
IN
= 2V
P-P
FREQUENCY (kHz)
THD AND NOISE (%)
60845 G21
1
0.1
0.01
0.001
0.0001
0.01 10 10010.1
V
S
= 5V
V
CM
= 2.5V
R
L
= 10k
A
V
= 2, V
IN
= 1V
P-P
A
V
= –2, V
IN
= 1V
P-P
A
V
= 1, V
IN
= 1V
P-P
A
V
= 1, V
IN
= 2V
P-P
OUTPUT VOLTAGE (V
P-P
)
THD AND NOISE (%)
60845 G22
10
1
0.1
0.01
0.001
0.0001
010.5 1.5 2.5 3.5 4.54532
R
L
= 10k
V
CM
= V
S
/2
A
V
= 1
V
S
= 3V AT 20kHz
V
S
= 3V AT 1kHz
V
S
= 5V AT 20kHz
V
S
= 5V AT 1kHz
LOAD RESISTANCE TO GROUND (kΩ)
THD AND NOISE (%)
60845 G23
0.1
0.01
0.001
0.0001
0.1 10 1001
A
V
= 1
V
CM
= V
S
/2 AT 1kHz
V
S
= 3V, V
IN
= 1V
P-P
V
S
= 5V, V
IN
= 2V
P-P
Small Signal Response Small Signal Response Large Signal Response
2µs/DIV
60845 G24
V
S
= 5V
A
V
= 1
R
L
= ∞
100mV/DIV
2µs/DIV
60845 G25
V
S
= 5V
A
V
= 1
R
L
= ∞
C
L
= 220pF
100mV/DIV
20µs/DIV
60845 G26
V
S
= 5V
A
V
= 1
R
L
= ∞
1V/DIV