3
LT 2078/LT 2079
20789fa
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
VS = 5V, 0V, VCM = 0.1V, VO = 1.4V, 0°C ≤ TA ≤ 70°C, unless otherwise noted (Note 7)
LT2078AI/LT2079AI
LT2078I/LT2079I
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
VOS
Input Offset Voltage
LT2078
q
70
250
95
370
V
LT2079
q
80
280
100
400
V
VOS
Input Offset Voltage Drift
LT2078
q
0.4
1.8
0.5
2.5
V/°C
T
(Note 6)
LT2079
q
0.6
3.0
0.6
3.5
V/°C
IOS
Input Offset Current
q
0.07
0.70
0.1
1.0
nA
IB
Input Bias Current
q
710
7
12
nA
CMRR
Common Mode Rejection Ratio
VCM = 0.05V to 3.2V
q
90
106
86
104
dB
PSRR
Power Supply Rejection Ratio
VS = 3.1V to 12V
q
96
110
92
110
dB
AVOL
Large-Signal Voltage Gain
VO = 0.05V to 4V, No Load
q
110
600
80
600
V/mV
VO = 0.05V to 3.5V, RL = 50k
q
80
400
60
400
V/mV
Maximum Output Voltage
Output Low, No Load
q
4.5
8
4.5
8
mV
Swing
Output Low, ISINK = 100A
q
125
170
125
170
mV
Output High, No Load
q
3.9
4.2
3.9
4.2
V
Output High, 2k to GND
q
3.0
3.7
3.0
3.7
V
IS
Supply Current per Amplifier
q
43
60
45
70
A
ELECTRICAL CHARACTERISTICS V
S = 5V, 0V, VCM = 0.1V, VO = 1.4V, TA = 25°C, unless otherwise noted.
LT2078AC/LT2078AI
LT2078C/LT2078I
LT2079AC/LT2079AI
LT2079C/LT2079I
SYMBOL
PARAMETER
CONDITIONS (NOTE 1)
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
AVOL
Large-Signal Voltage Gain
VO = 0.03V to 4V, No Load
200
1000
150
1000
V/mV
VO = 0.03V to 3.5V, RL = 50k
150
600
120
600
V/mV
Maximum Output Voltage
Output Low, No Load
3.5
6
3.5
6
mV
Swing
Output Low, 2k to GND
0.55
1.2
0.55
1.2
mV
Output Low, ISINK = 100A
95
130
95
130
mV
Output High, No Load
4.2
4.4
4.2
4.4
V
Output High, 2k to GND
3.5
3.9
3.5
3.9
V
SR
Slew Rate
AV = 1, VS = ±2.5V
0.04
0.07
0.04
0.07
V/
s
GBW
Gain Bandwidth Product
fO ≤ 20kHz
200
kHz
IS
Supply Current per Amplifier
38
50
39
55
A
Channel Separation
VIN = 3V, RL = 10k, f ≤ 10Hz
110
dB
Minimum Supply Voltage
(Note 5)
2.2
2.3
2.2
2.3
V
LT2078AC/LT2079AC
LT2078C/LT2079C
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
VOS
Input Offset Voltage
LT2078
q
50
150
60
240
V
LT2079
q
60
180
70
270
V
VOS
Input Offset Voltage Drift
LT2078
q
0.4
1.8
0.5
2.5
V/°C
T
(Note 6)
LT2079
q
0.5
3.0
0.6
3.5
V/°C
IOS
Input Offset Current
q
0.06
0.35
0.06
0.50
nA
IB
Input Bias Current
q
69
6
11
nA
CMRR
Common Mode Rejection Ratio
VCM = 0V to 3.4V
q
92
108
88
106
dB
PSRR
Power Supply Rejection Ratio
VS = 2.6V to 12V
q
98
112
95
112
dB
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
VS = 5V, 0V, VCM = 0.1V, VO = 1.4V, – 40°C ≤ TA ≤ 85°C for I grades, unless otherwise noted.