2
LT2078/LT 2079
20789fa
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ABSOLUTE MAXIMUM RATINGS
W
WW
U
Supply Voltage ......................................................
±22V
Differential Input Voltage .......................................
±30V
Input Voltage ............... Equal to Positive Supply Voltage
............ 5V Below Negative Supply Voltage
Output Short-Circuit Duration .......................... Indefinite
Specified Temperature Range
Commercial ............................................. 0
°C to 70°C
Industrial ............................................ – 40
°C to 85°C
Storage Temperature Range ................. – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300
°C
TJMAX = 150°C, θJA = 150°C/ W
TJMAX = 150°C, θJA = 190°C/ W
VS = 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 2)
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
VOS
Input Offset Voltage
LT2078
30
70
40
120
V
LT2079
35
110
40
150
V
VOS
Long Term Input Offset
0.4
0.5
V/Mo
Time
Voltage Stability
IOS
Input Offset Current
0.05
0.25
0.05
0.35
nA
IB
Input Bias Current
6
8
6
10
nA
en
Input Noise Voltage
0.1Hz to 10Hz (Note 3)
0.6
1.2
0.6
VP-P
Input Noise Voltage Density
fO = 10Hz (Note 3)
29
45
29
nV
√Hz
fO = 1000Hz (Note 3)
28
37
28
nV
√Hz
in
Input Noise Current
0.1Hz to 10Hz (Note 3)
2.3
4.0
2.3
pAP-P
Input Noise Current Density
fO = 10Hz (Note 3)
0.06
0.10
0.06
pA
√Hz
fO = 1000Hz
0.02
pA
√Hz
Input Resistance
(Note 4)
Differential Mode
400
800
300
800
M
Common Mode
6
G
Input Voltage Range
3.5
3.8
3.5
3.8
V
0
– 0.3
0
– 0.3
V
CMRR
Common Mode Rejection Ratio
VCM = 0V to 3.5V
95
110
92
108
dB
PSRR
Power Supply Rejection Ratio
VS = 2.3V to 12V
100
114
98
114
dB
ELECTRICAL CHARACTERISTICS
ORDER PART
NUMBER
LT2078ACS8
LT2078AIS8
LT2078CS8
LT2078IS8
2078A
2078AI
2078
2078I
PART MARKING
PACKAGE/ORDER INFORMATION
W
UU
ORDER PART
NUMBER
LT2079ACS
LT2079AIS
LT2079CS
LT2079IS
1
2
3
4
8
7
6
5
TOP VIEW
V+
OUT B
–IN B
+IN B
OUT A
–IN A
+IN A
V–
S8 PACKAGE
8-LEAD PLASTIC SO
A
B
TOP VIEW
S PACKAGE
14-LEAD PLASTIC SO
1
2
3
4
5
6
7
14
13
12
11
10
9
8
OUT A
–IN A
+IN A
V+
+IN B
–IN B
OUT B
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
A
D
B
C
(Note 1)