Datasheet

LTC6087/LTC6088
8
60878fc
typical perForMance characteristics
Overshoot vs Capacitive Load
Channel Separation vs Frequency
Total Harmonic Distortion + Noise
vs Load Resistance
Total Harmonic Distortion + Noise
vs Frequency
Total Harmonic Distortion + Noise
vs Output Voltage
Disabled Output Impedance
vs Frequency
Overshoot vs Capacitive Load
Total Harmonic Distortion + Noise
vs Frequency
FREQUENCY (Hz)
10
OUTPUT IMPEDANCE (kΩ)
100
1000
100000
1000000
100 10k 100k 10M
60878 G20
1
1k
1M
10000
0.1
V
S
= 5V
V
CM
= 1V
A
V
= 1
T
A
= 25°C
CAPACITIVE LOAD (pF)
10
0
OVERSHOOT (%)
50
40
30
20
10
60
80
100 1000
60878 G21
70
V
S
= 5V
V
CM
= 2.5V
A
V
= 1
+
–
R
S
C
L
R
S
= 10Ω
R
S
= 50Ω
CAPACITIVE LOAD (pF)
10
0
OVERSHOOT (%)
25
20
15
10
5
30
40
100 1000
60878 G22
35
V
S
= 5V
V
CM
= 2.5V
A
V
= –1
R
S
= 10Ω
R
S
= 50Ω
R
S
1k
1k
30pF
C
L
+
–
FREQUENCY (MHz)
–120
CHANNEL SEPARATON (dB)
–110
–105
–95
–90
0.01 1 10 100
60878 G23
–130
0.1
–100
–115
–125
V
S
= 5V
V
CM
= 2.5V
T
A
= 25°C
FREQUENCY (kHz)
0.01
THD + NOISE (%)
0.1
0.01 1 10 100
60878 G24
0.001
0.1
1
A
V
= 1, V
IN
= 1V
P-P
A
V
= –2, V
IN
= 1V
P-P
A
V
= 1, V
IN
= 2V
P-P
A
V
= 2, V
IN
= 1V
P-P
V
S
= 3V
V
CM
= 1.5V
R
L
= 10k
FREQUENCY (kHz)
0.01
0.001
THD + NOISE (%)
0.01
0.1
10.1 10 100
60878 G25
A
V
= 1, V
IN
= 1V
P-P
A
V
= –2, V
IN
= 1V
P-P
A
V
= 1, V
IN
= 2V
P-P
A
V
= 2, V
IN
= 1V
P-P
V
S
= 5V
V
CM
= 2.5V
R
L
= 10k
OUTPUT VOLTAGE (V
P-P
)
0 0.5 1 2 2.5 3 4 4.5
0.0001
THD + NOISE (%)
0.01
0.1
1.5 3.5 5
60878 G26
0.001
V
S
= 3V
AT 20kHz
V
S
= 5V
AT 20kHz
V
S
= 5V
AT 1kHz
V
S
= 3V
AT 1kHz
R
L
= 10k
V
CM
= V
S
/2
A
V
= 1
LOAD RESISTANCE TO GROUND (kΩ)
0.1
0.0001
THD + NOISE (%)
0.001
0.01
0.1
1 10 100
60878 G27
V
S
= 3V, V
IN
= 1V
P-P
A
V
= 1
V
CM
= V
S
/2 AT 1kHz
V
S
= 5V, V
IN
= 2V
P-P