Datasheet

LTC6912
3
6912fa
UUU
GAI SETTI GS A D PROPERTIES
Table 1. LTC6912-1 GAIN SETTINGS AND PROPERTIES
UPPER/LOWER NOMINAL
NIBBLE VOLTAGE GAIN MAXIMUM LINEAR INPUT RANGE (V
P-P
)
Q7 Q6 Q5 Q4 Dual 5V Single 5V Single 3V NOMINAL INPUT NOMINAL OUTPUT
Q3 Q2 Q1 Q0 Volts/Volt dB Supply Supply Supply IMPEDANCE (kΩ) IMPEDANCE (Ω)
0000 0 –120 10 5 3 (Open) 0.4
0001 –1 0 10 5 3 10 0.7
0010 –2 6 5 2.5 1.5 5 3.4
0011 –5 14 2 1 0.6 2 3.4
0100 –10 20 1 0.5 0.3 1 3.4
0101 –20 26 0.5 0.25 0.15 1 6.4
0110 –50 34 0.2 0.1 0.06 1 15
0111 –100 40 0.1 0.05 0.03 1 30
1 0 X X 0 –120 10 5 3 (Open) (Open)
1 1 X X Not Used (Note 11) Not Used
Table 2. LTC6912-2 GAIN SETTINGS AND PROPERTIES
UPPER/LOWER NOMINAL
NIBBLE VOLTAGE GAIN MAXIMUM LINEAR INPUT RANGE (V
P-P
)
Q7 Q6 Q5 Q4 Dual 5V Single 5V Single 3V NOMINAL INPUT NOMINAL OUTPUT
Q3 Q2 Q1 Q0 Volts/Volt dB Supply Supply Supply IMPEDANCE (kΩ) IMPEDANCE (Ω)
0000 0 –120 10 5 3 (Open) 0.4
0001 –1 0 10 5 3 10 0.7
0010 –2 6 5 2.5 1.5 5 3.4
0011 –4 12 2.5 1.25 0.75 2.5 3.4
0100 –8 18.1 1.25 0.625 0.375 1.25 3.4
0101 –16 24.1 0.625 0.3125 0.188 1.25 6.4
0110 –32 30.1 0.3125 0.156 0.094 1.25 15
0111 –64 36.1 0.156 0.078 0.047 1.25 30
1 0 X X 0 –120 10 5 3 (Open) (Open)
1 1 X X Not Used (Note 11) Not Used