LTC6912
13
6912fa
FREQUENCY (kHz)
GAIN (dB)
50
40
30
20
10
0
–10
1 100 1000 10000
6912 G01
10
V
S
= ±5V
V
IN
= 10mV
RMS
GAIN OF 100
GAIN OF 50
GAIN OF 20
GAIN OF 10
GAIN OF 1
GAIN OF 5
GAIN OF 2
FREQUENCY (Hz)
CHANNEL-TO-CHANNEL GAIN MATCH (dB)
0.10
0.05
0
–0.05
–0.10
–0.15
–0.20
1 100 1000 10000
6912 G02
10
V
S
= ±5V
V
IN
= 10mV
RMS
GAIN OF 100
GAIN OF 10
GAIN OF 1
GAIN (V/V)
1
0.1
–3dB FREQUENCY (MHz)
1
6
10 100
6912 G03
V
IN
= 10mV
RMS
V
S
= ±5V
V
S
= 2.7V
FREQUENCY (kHz)
100
CHANNEL-TO-CHANNEL ISOLATION (dB)
125
120
115
110
105
100
95
90
85
80
1000
6912 G04
GAIN OF 100
GAIN OF 10
GAIN OF 1
FREQUENCY (kHz)
REJECTION (dB)
90
80
70
60
50
40
30
20
10
0
1 100 1000 10000
6912 G05 6912 G06
10
V
S
= ±5V
V
OUT
= 1V
RMS
V
S
= 5V
GAIN = 1
+SUPPLY
–SUPPLY
FREQUENCY (kHz)
0
THD-AMPLITUDE BELOW FUNDAMENTAL (dB)
–30
–40
–50
–60
–70
–80
–90
50 100 150 200
6912 G08 6912 G096912 G07
FREQUENCY (kHz)
0
THD-AMPLITUDE BELOW FUNDAMENTAL (dB)
15050 100 200
–50
–55
–60
–65
–70
–75
–80
–85
–90
GAIN OF 100
GAIN OF 10
GAIN OF 1
R
L
= 500Ω
V
S
= ±2.5V
V
OUT
= 1V
RMS
(2.83)V
P-P
GAIN OF 100
GAIN OF 10
GAIN OF 1
R
L
= 10k
V
S
= ±2.5V
V
OUT
= 1V
RMS
(2.83)V
P-P
INPUT VOLTAGE (V
P-P
)
THD PLUS NOISE (dB)
–30
–40
–50
–60
–70
–80
–90
–100
0.001 0.1 1 100.01
V
S
= ±5V
R
L
= 10k
f
IN
= 1kHz
BW = 22kHz
GAIN OF 100
GAIN
OF 10
GAIN OF 1
FREQUENCY (kHz)
1
1
VOLTAGE NOISE DENSITY (nV/√HZ)
10
100
10 100
V
S
= ±2.5V
T
A
= 25°C
INPUT REFERRED
GAIN OF 100
GAIN OF 10
GAIN OF 1
TYPICAL PERFOR A CE CHARACTERISTICS
UW
LTC6912-1 Frequency Response
LTC6912-1 Channel Gain
Matching vs Frequency
LTC6912-1 –3dB Bandwidth vs
Gain Setting
LTC6912-1 Channel Isolation vs
Frequency
LTC6912-1 Power Supply
Rejection vs Frequency
LTC6912-1 Noise Density vs
Frequency
LTC6912-1 Distortion vs
Frequency with Light Loading
LTC6912-1 Distortion vs
Frequency with Heavy Loading
LTC6912-1 THD Plus Noise vs
Input Voltage
