LTC6912
8
6912fa
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications that apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
S
= 5V, AGND = 2.5V, Gain = 1, R
L
= 10k to midsupply point, unless
otherwise noted.
C, I GRADES H GRADE
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Specifications for the LTC6912-1 ONLY
Voltage Noise Density f = 50kHz
(Referred to Input) Gain = 1 35.6 35.6 nV/√Hz
Gain = 2 24.8 24.8 nV/√Hz
Gain = 5 19.1 19.1 nV/√Hz
Gain = 10 16.7 16.7 nV/√Hz
Gain = 20 16 16 nV/√Hz
Gain = 50 15.4 15.4 nV/√Hz
Gain = 100 15.1 15.1 nV/√Hz
Total Harmonic Distortion Gain = 10, f
IN
= 10kHz, V
OUT
= 1V
RMS
–90 –90 dB
0.003 0.003 %
Gain = 10, f
IN
= 100kHz, –82 –82 dB
V
OUT
= 1V
RMS
0.008 0.008 %
Specifications for the LTC6912-2 ONLY
Voltage Gain (Note 6) V
S
= 2.7V, Gain = 1, R
L
= 10k ● –0.07 0 0.07 –0.08 0 0.07 dB
V
S
= 2.7V, Gain = 1, R
L
= 500Ω ● –0.11 –0.02 0.07 –0.13 –0.02 0.07 dB
V
S
= 2.7V, Gain = 2, R
L
= 10k ● 5.94 6.01 6.08 5.93 6.01 6.08 dB
V
S
= 2.7V, Gain = 4, R
L
= 10k ● 11.9 12.02 12.12 11.88 12.02 12.12 dB
V
S
= 2.7V, Gain = 8, R
L
= 10k ● 17.8 18.0 18.15 17.75 18.0 18.15 dB
V
S
= 2.7V, Gain = 8, R
L
= 500Ω ● 17.65 17.94 18.15 17.50 17.94 18.15 dB
V
S
= 2.7V, Gain = 16, R
L
=10k ● 23.8 24.01 24.25 23.75 24.01 24.25 dB
V
S
= 2.7V, Gain = 32, R
L
= 10k ● 29.7 30.0 30.2 29.65 30.0 30.2 dB
V
S
= 2.7V, Gain = 64, R
L
= 10k ● 35.4 35.8 36.2 35.15 35.8 36.2 dB
V
S
= 2.7V, Gain = 64, R
L
= 500Ω ● 34.15 35.3 36.0 33.40 35.3 36.0 dB
V
S
= 5V, Gain = 1, R
L
= 10k ● –0.08 0 0.08 –0.09 0 0.08 dB
V
S
= 5V, Gain = 1, R
L
= 500Ω ● –0.1 –0.01 0.08 –0.12 –0.01 0.08 dB
V
S
= 5V, Gain = 2, R
L
= 10k ● 5.95 6.02 6.09 5.94 6.02 6.09 dB
V
S
= 5V, Gain = 4, R
L
= 10k ● 11.85 12.02 12.15 11.83 12.02 12.15 dB
V
S
= 5V, Gain = 8, R
L
= 10k ● 17.85 18.01 18.15 17.83 18.01 18.15 dB
V
S
= 5V, Gain = 8, R
L
= 500Ω ● 17.65 17.96 18.15 17.50 17.96 18.15 dB
V
S
= 5V, Gain = 16, R
L
= 10k ● 23.85 24.02 24.15 23.80 24.02 24.15 dB
V
S
= 5V, Gain = 32, R
L
= 10k ● 29.70 30.02 30.2 29.65 30.02 30.2 dB
V
S
= 5V, Gain = 64, R
L
= 10k ● 35.5 35.9 36.25 35.40 35.9 36.25 dB
V
S
= 5V, Gain = 64, R
L
= 500Ω ● 34.6 35.6 36.0 33.8 35.6 36.0 dB
V
S
= ±5V, Gain = 1, R
L
= 10k ● –0.06 0.01 0.08 –0.07 0.01 0.08 dB
V
S
= ±5V, Gain = 1, R
L
= 500Ω ● –0.1 0 0.08 –0.11 0 0.08 dB
V
S
= ±5V, Gain = 2, R
L
= 10k ● 5.95 6.02 6.09 5.94 6.02 6.09 dB
V
S
= ±5V, Gain = 4, R
L
= 10k ● 11.9 12.03 12.15 11.88 12.03 12.15 dB
V
S
= ±5V, Gain = 8, R
L
= 10k ● 17.85 18.02 18.15 17.83 18.02 18.15 dB
V
S
= ±5V, Gain = 8, R
L
= 500Ω ● 17.80 17.99 18.15 17.73 17.99 18.15 dB
V
S
= ±5V, Gain = 16, R
L
= 10k ● 23.85 24.03 24.15 23.82 24.03 24.15 dB
V
S
= ±5V, Gain = 32, R
L
= 10k ● 29.85 30.0 30.2 29.8 30.0 30.20 dB
V
S
= ±5V, Gain = 64, R
L
= 10k ● 35.65 36.0 36.20 35.55 36.0 36.20 dB
V
S
= ±5V, Gain = 64, R
L
= 500Ω ● 35.15 35.8 36.10 34.45 35.8 36.10 dB