LTC6911-1/LTC6911-2
6
sn691112 691112fs
The q denotes the specifications that apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VS = 5V, AGND = 2.5V, Gain = 1 (Digital Inputs 001), RL = 10k
to midsupply point, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
C/I GRADES
H GRADE
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
LTC6911-1 Only
DC Input Resistance at
DC VINA or VINB = 0V
INA or INB Pins (Note 9)
Gain = 0
q
>100
M
Gain = 1
q
10
k
Gain = 2
q
55
k
Gain = 5
q
22
k
Gain > 5
q
11
k
DC Input Resistance Match
Gain = 1
q
10
RINA – RINB
Gain = 2
q
55
Gain = 5
q
22
Gain > 5
q
11
DC Small-Signal Output Resistance
DC VINA or VINB = 0V
at OUTA or OUTB Pins
Gain = 0
0.4
Gain = 1
0.7
Gain = 2
1.0
Gain = 5
1.9
Gain = 10
3.4
Gain = 20
6.4
Gain = 50
15
Gain = 100
30
Gain-Bandwidth Product
Gain = 100, fIN = 200kHz
q
7
11
18
6
11
18
MHz
Wideband Noise (Referred to Input)
f = 1kHz to 200kHz
Gain = 0 (Output Noise Only)
7.5
VRMS
Gain = 1
12.3
VRMS
Gain = 2
8.5
VRMS
Gain = 5
6.1
VRMS
Gain = 10
5.2
VRMS
Gain = 20
5.0
VRMS
Gain = 50
4.5
VRMS
Gain = 100
3.8
VRMS
Voltage Noise Density
f = 50kHz
(Referred to Input)
Gain = 1
28
nV/
√Hz
Gain = 2
19
nV/
√Hz
Gain = 5
14
nV/
√Hz
Gain = 10
12
nV/
√Hz
Gain = 20
11.5
nV/
√Hz
Gain = 50
10.8
nV/
√Hz
Gain = 100
9.9
nV/
√Hz
Total Harmonic Distortion
Gain = 10, fIN = 10kHz, VOUT = 1VRMS
–90
– 90
dB
0.003
%
Gain = 10, fIN = 100kHz, VOUT = 1VRMS
–82
– 82
dB
0.008
%