LT2178/LT2179
3
21789fc
ELECTRICAL CHARACTERISTICS V
S = 5V, 0V, VCM = 0.1V, VO = 1.4V, TA = 25°C, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
LT2178AC/LT2178AI
LT2179AC
LT2178C/LT2178I
LT2179C/LT2179I
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
VOS
Input Offset Voltage
LT2178
LT2179
30
35
70
100
40
120
150
μV
ΔVOS
ΔTime
Long Term Input Offset
Voltage Stability
0.5
0.6
μV/Mo
IOS
Input Offset Current
0.05
0.25
0.05
0.35
nA
IB
Input Bias Current
3
5
3
6
nA
en
Input Noise Voltage
0.1Hz to 10Hz (Note 2)
0.9
2.0
0.9
μVP-P
Input Noise Voltage Density
fO = 10Hz (Note 2)
fO = 1000Hz (Note 2)
50
49
75
65
50
49
nV√Hz
in
Input Noise Current
0.1Hz to 10Hz (Note 2)
1.5
2.5
1.5
pAP-P
Input Noise Current Density
fO = 10Hz (Note 2)
fO = 1000Hz
0.03
0.01
0.07
0.03
0.01
pA√Hz
Input Resistance
Differential Mode
Common Mode
(Note 3)
0.8
2
12
0.6
2
12
GΩ
Input Voltage Range
3.5
0
3.9
–0.3
3.5
0
3.9
–0.3
V
CMRR
Common Mode Rejection Ratio
VCM = 0V to 3.5V
93
103
90
102
dB
PSRR
Power Supply Rejection Ratio
VS = 2.2V to 12V
94
104
92
104
dB
AVOL
Large-Signal Voltage Gain
VO = 0.03V to 4V, No Load (Note 3)
VO = 0.03V to 3.5V, RL = 50k
140
80
700
200
110
70
700
200
V/mV
Maximum Output Voltage Swing
Output Low, No Load
Output Low, 2k to GND
Output Low, ISINK = 100μA
6.5
0.2
120
9
0.6
160
6.5
0.2
120
9
0.6
160
mV
Output High, No Load
Output High, 2k to GND
4.2
3.5
4.4
3.8
4.2
3.5
4.4
3.8
V
SR
Slew Rate
AV = 1, CL = 10pF (Note 3)
0.013
0.025
0.013
0.025
V/μs
GBW
Gain Bandwidth Product
fO ≤ 5kHz
60
kHz
IS
Supply Current per Amplier
VS = ±1.5V, VO = 0V
13
12
18
17
14
13
21
20
μA
Channel Separation
ΔVIN = 3V, RL = 10k
110
dB
Minimum Supply Voltage
(Note 4)
2
2.2
2
2.2
V
SYMBOL PARAMETER
CONDITIONS
LT2178AI
LT2178I/LT2179I
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
VOS
Input Offset Voltage
LT2178
LT2179
l
70
80
270
300
95
100
370
400
μV
ΔVOS
ΔT
Input Offset Voltage Drift
LT2178 (Note 5)
LT2179
l
0.4
0.5
1.8
3
0.5
0.6
2.3
3.5
μV/C
IOS
Input Offset Current
l
0.07
0.70
0.1
1
nA
IB
Input Bias Current
l
37
48
nA
CMRR
Common Mode Rejection Ratio
VCM = 0.05V to 3.2V
l
86
100
84
98
dB
PSRR
Power Supply Rejection Ratio
VS = 3V to 12V
l
88
100
86
100
dB
The
l denotes the specications which apply over the full operating temperature range. VS = 5V, 0V, VCM = 0.1V, VO = 1.4V,
–40°C ≤ TA ≤ 85°C for I-grades, unless otherwise noted. (Note 6)