Datasheet

LTC6912
14
6912fa
FREQUENCY (kHz)
GAIN (dB)
40
30
20
10
0
–10
1 100 1000 10000
6912 G14a
10
GAIN OF 64
GAIN OF 32
GAIN OF 16
GAIN OF 8
GAIN OF 4
GAIN OF 2
GAIN OF 1
V
S
= ±5V
V
IN
= 10mV
RMS
FREQUENCY (kHz)
1
CHANNEL-TO-CHANNEL GAIN MATCH (dB)
100
10000
0.100
0.075
0.050
0.025
0
–0.025
–0.050
–0.075
–0.100
6912 G15
10 1000
V
S
= ±5V
V
IN
= 10mV
RMS
R
L
= 10kΩ
GAIN OF 64
GAIN = 64
GAIN = 8
GAIN = 1
GAIN OF 8
GAIN OF 1
GAIN (V/V)
1
0.4
–3dB FREQUENCY (MHz)
1.0
0.8
0.6
8.0
6.0
4.0
2.0
10 100
6912 G16
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 G17
V
S
= 5V
V
OUT
= 1V
RMS
TOTAL SUPPLY CURRENT (µA)
TEMPERATURE (°C)
–50 25 75
–25 0
50 100 125
6912 G10
10
1
0.1
HARDWARE SHUTDOWN (GN-16 ONLY)
V
S
= ±5V
V
S
= 5V
V
S
= 3V
V
S
= 2.7V
TEMPERATURE (°C)
–50
TOTAL SUPPLY CURRENT (µA)
700
600
500
400
300
200
100
25 75
6912 G11
–25 0
50 100 125
TEMPERATURE (°C)
–50 25 75
6912 G14
–25 0
50 100 125
TEMPERATURE (°C)
–50 25 75
6912 G13
–25 0
50 100 125
TEMPERATURE (°C)
–50
TOTAL SUPPLY CURRENT (mA)
100
6912 G12
050
5.00
4.75
4.50
4.25
4.00
3.75
3.50
3.25
3.00
–25 25 75 125
0.10
0.05
0
–0.05
–0.10
–0.15
–0.20
–0.25
GAIN CHANGE (dB)
0.5
0
–0.5
–1.0
–1.5
GAIN CHANGE (dB)
BOTH AMPLIFIERS IN
SOFTWARE SHUTDOWN
R
L
= 10k
V
S
= ±5V
V
S
= 5V
V
S
= 2.7V
BOTH AMPLIFIERS
PROGRAMMED TO GAIN = 1
R
L
= 10k
V
S
= ±5V
V
S
= 5V
V
S
= 2.7V
GAIN OF 1
GAIN OF 10
GAIN OF 100
V
S
= 5V
R
L
= 10k
GAIN OF 1
GAIN OF 10
GAIN OF 100
V
S
= 5V
R
L
= 500Ω
LTC6912-1 Hardware Shutdown
Total Supply Current vs
Temperature
LTC6912-1 Software Shutdown
Total Supply Current vs
Temperature
LTC6912-1 Total Supply Current
vs Temperature (Both Amplifiers
Active)
LTC6912-1 Gain Shift vs
Temperature (Light Load)
LTC6912-2
Frequency Response
LTC6912-2 Channel Gain
Matching vs Frequency
LTC6912-2 –3dB Bandwidth vs
Gain Setting
LTC6912-2 Channel Isolation vs
Frequency
TYPICAL PERFOR A CE CHARACTERISTICS
UW
LTC6912-1 Gain Shift vs
Temperature (Heavy Load)