LTC6911-1/LTC6911-2
8
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
LTC6911-2 Only
VS = 5V, Gain = 1, RL = 10k
q
–0.1 0.02
0.1
–0.1
0.02
0.1
dB
VS = 5V, Gain = 1, RL = 500
q
–0.1 0.02
0.1
–0.1
0.02
0.1
dB
VS = 5V, Gain = 2, RL = 10k
q
–0.1 0.02
0.1
–0.1
0.02
0.1
dB
VS = 5V, Gain = 4, RL = 10k
q
–0.15 0.02
0.15
–0.15 0.02
0.15
dB
VS = 5V, Gain = 8, RL = 10k
q
–0.15 0.02
0.15
–0.15 0.02
0.15
dB
VS = 5V, Gain = 8, RL = 500
q
–0.15 0.02
0.15
–0.15 0.02
0.15
dB
VS = 5V, Gain = 16, RL = 10k
q
–0.15 0.02
0.15
–0.15 0.02
0.15
dB
VS = 5V, Gain = 32, RL = 10k
q
–0.15 0.02
0.15
–0.15 0.02
0.15
dB
VS = 5V, Gain = 64, RL = 10k
q
–0.15 0.02
0.15
–0.15 0.02
0.15
dB
VS = 5V, Gain = 64, RL = 500
q
–0.60 0.02
0.60
–0.80 0.02
0.80
dB
VS = ±5V, Gain = 1, RL = 10k
q
–0.1 0.02
0.1
–0.1
0.02
0.1
dB
VS = ±5V, Gain = 1, RL = 500
q
–0.1 0.02
0.1
–0.1
0.02
0.1
dB
VS = ±5V, Gain = 2, RL = 10k
q
–0.1 0.02
0.1
–0.1
0.02
0.1
dB
VS = ±5V, Gain = 4, RL = 10k
q
–0.15 0.02
0.15
–0.15 0.02
0.15
dB
VS = ±5V, Gain = 8, RL = 10k
q
–0.15 0.02
0.15
–0.15 0.02
0.15
dB
VS = ±5V, Gain = 8, RL = 500
q
–0.15 0.02
0.15
–0.15 0.02
0.15
dB
VS = ±5V, Gain = 16, RL = 10k
q
–0.15 0.02
0.15
–0.15 0.02
0.15
dB
VS = ±5V, Gain = 32, RL = 10k
q
–0.15 0.02
0.15
–0.15 0.02
0.15
dB
VS = ±5V, Gain = 64, RL = 10k
q
–0.15 0.02
0.15
–0.15 0.02
0.15
dB
VS = ±5V, Gain = 64, RL = 500
q
–0.40 0.02
0.40
–0.60 0.02
0.60
dB
Gain Temperature Coefficient
VS = 5V, Gain = 1, RL = Open
2
ppm/
°C
VS = 5V, Gain = 2, RL = Open
–1
ppm/
°C
VS = 5V, Gain = 4, RL = Open
–7
ppm/
°C
VS = 5V, Gain = 8, RL = Open
–21
ppm/
°C
VS = 5V, Gain = 16, RL = Open
–28
ppm/
°C
VS = 5V, Gain = 32, RL = Open
–40
ppm/
°C
VS = 5V, Gain = 64, RL = Open
–115
ppm/
°C
Channel-to-Channel Gain
VS = 5V, Gain = 1, RL = Open
0
ppm/
°C
Temperature Coefficient Match
VS = 5V, Gain = 2, RL = Open
–0.5
ppm/
°C
VS = 5V, Gain = 4, RL = Open
0.5
ppm/
°C
VS = 5V, Gain = 8, RL = Open
0.5
ppm/
°C
VS = 5V, Gain = 16, RL = Open
1.0
ppm/
°C
VS = 5V, Gain = 32, RL = Open
4.0
ppm/
°C
VS = 5V, Gain = 64, RL = Open
4.0
ppm/
°C
Channel-to-Channel Isolation (Note 7)
f = 200kHz
VS = 5V, Gain = 1, RL = 10k
110
dB
VS = 5V, Gain = 8, RL = 10k
110
dB
VS = 5V, Gain = 64, RL = 10k
93
dB
Offset Voltage Magnitude
Gain = 1
q
2.0
22
2.0
22
mV
Referred to INA or INB Pins (Note 8)
Gain = 8
q
1.1
12
1.1
14
mV
Offset Voltage Magnitude Drift
Gain = 1
12
20
V/°C
Referred to INA or INB Pins (Note 8)
Gain = 8
6.8
11
V/°C
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 = 4
q
2.5
k
Gain > 4
q
1.25
k