Consider the N8 or S8 Package for Alternate Source
TOP VIEW
OUT A 1
–IN A 2
-
A
+IN A 3
+
V+ 4
+IN B 5
+
B
–IN B 6
-
OUT B 7
14 OUT D
-
D
+
12 +IN D
13 –IN D
11 V –
ORDER PART
NUMBER
LT1179ACN
LT1179CN
LT1179IN
Not Recommended. Use LT1178S8 for
New Designs.
TOP VIEW
NC
1
NC
2
OUT A
3
–IN A
4
+IN A
5
V–
6
NC
7
NC
8
LT1178
16
NC
15
NC
14
V +
13
OUT B
12
–IN B
11
+IN B
10
NC
9
C
-
+
10 +IN C
9 –IN C
8 OUT C
N PACKAGE
14-LEAD PDIP
T
JMAX
= 110°C,
θ
JA
= 130°C/W
J PACKAGE 14-LEAD CERAMIC DIP
OBSOLETE PACKAGE
Consider the N14 Package for Alternate Source
LT1179ACJ
LT1179CJ
Consult LTC Marketing for parts specified with wider operating temperature ranges. Please note that the LT1178S8 surface mount pinout differs from that
of the LT1178 standard plastic or ceramic dual-in-line packages. For similiar performance with standard pinout, see the LT2178.
ELECTRICAL CHARACTERISTICS
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
LT1178
LT1179
LT1178SW
LT1179SW
LT1178S8
V
S
= 5V, 0V; V
CM
= 0.1V, V
O
= 1.4V, T
A
= 25°C, unless noted.
LT1178AC/LT1179AC
MIN
TYP
MAX
30
35
70
100
LT1178I/C/S/LT1179I/C/S
MIN
TYP
MAX
40
40
80
90
60
0.6
0.25
0.05
0.35
120
150
450
600
180
UNITS
µV
µV
µV
µV
µV
µV/Mo
nA
11789fb
CONDITIONS (NOTE 2)
∆V
OS
∆Time
I
OS
Long Term Input Offset
Voltage Stability
Input Offset Current
2
U
U
W
W W
U
W
ORDER PART
NUMBER
LT1178ACN8
LT1178CN8
LT1178IN8
LT1178ACJ8
LT1178CJ8
+IN A
1
V–
2
TOP VIEW
-
+A
+
B
-
ORDER PART
NUMBER
8
7
– IN A
+IN B
3
– IN B
4
OUT A
+
6
V
5
LT1178S8
PART
MARKING
1178
OUT B
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 200°C/W
ORDER PART
NUMBER
LT1178SW
LT1179SW
OUT A
1
–IN A
2
+IN A
3
V+
4
+IN B
5
–IN B
6
OUT B
7
NC
8
TOP VIEW
16
OUT D
15
–IN D
14
+IN D
13
V –
12
+IN C
11
–IN C
10
OUT C
9
NC
LT1179
NC
SW PACKAGE
16-LEAD PLASTIC SO WIDE
T
JMAX
= 150°C,
θ
JA
= 90°C/W
SW PACKAGE
16-LEAD PLASTIC SO WIDE
T
JMAX
= 150°C,
θ
JA
= 90°C/W
LT11778/1179 • POI01
0.5
0.05
LT1178/LT1179
ELECTRICAL CHARACTERISTICS
SYMBOL
I
B
e
n
PARAMETER
Input Bias Current
Input Noise Voltage
Input Noise Voltage Density
i
n
Input Noise Current
Input Noise Current Density
Input Resistance
Differential Mode
Common Mode
Input Voltage Range
CMRR
PSRR
A
VOL
Common Mode Rejection Ratio V
CM
= 0V to 3.5V
Power Supply Rejection Ratio
Large Signal Voltage Gain
V
S
= 2.2V to 12V
V
S
= 5V, 0V; V
CM
= 0.1V, V
O
= 1.4V, T
A
= 25°C, unless noted.
LT1178AC/LT1179AC
MIN
TYP
MAX
3
5
2.0
75
65
2.5
0.07
LT1178I/C/S/LT1179I/C/S
MIN
TYP
MAX
3
0.9
50
49
1.5
0.03
0.01
0.6
3.5
0
90
92
110
70
9
0.6
160
4.2
3.5
0.013
2.0
12
3.9
–0.3
102
104
700
200
6.5
0.2
120
4.4
3.8
0.025
60
18
17
14
13
130
2.2
2.0
2.2
21
20
9
0.6
160
6
UNITS
nA
µV
P-P
nV/√Hz
nV/√Hz
pAp-p
pA/√Hz
pA/√Hz
GΩ
GΩ
V
V
dB
dB
V/mV
V/mV
mV
mV
mV
V
V
V/µs
kHz
µA
µA
dB
V
CONDITIONS (NOTE 2)
0.1Hz to 10Hz (Note 3)
f
O
= 10Hz (Note 3)
f
O
= 1000Hz (Note 3)
0.1Hz to 10Hz (Note 3)
f
O
= 10Hz (Note 3)
f
O
= 1000Hz
(Note 4)
0.8
3.5
0
93
94
140
80
0.9
50
49
1.5
0.03
0.01
2.0
12
3.9
–0.3
103
104
700
200
6.5
0.2
120
4.4
3.8
0.025
60
13
12
130
2.0
V
O
= 0.03V to 4V, No Load
(Note 4)
V
O
= 0.03V to 3.5V, R
L
= 50k
Output Low, No Load
Output Low, 2k to GND
Output Low, I
SINK
= 100µA
Output High, No Load
Output High 2k to GND
A
V
= 1, C
L
= 10pF (Note 4)
f
O
≤
5kHz
V
S
=
±1.5V,
V
O
= 0V
∆V
IN
= 3V, R
L
= 10k
(Note 5)
Maximum Output Voltage
Swing
4.2
3.5
0.013
SR
GBW
I
S
Slew Rate
Gain Bandwidth Product
Supply Current
per Amplifier
Channel Separation
Minimum Supply Voltage
11789fb
3
LT1178/LT1179
ELECTRICAL CHARACTERISTICS
SYMBOL
V
OS
∆V
OS
/∆T
I
OS
I
B
CMRR
PSRR
A
VOL
PARAMETER
lnput Offset Voltage
Input Offset Voltage Drift
Input Offset Current
Input Bias Current
Common Mode Rejection
Ratio
Power Supply Rejection
Ratio
Large-Signal Voltage Gain
Maximum Output Voltage
Swing
CONDITIONS
LT1178
LT1179
(Note 6)
The
●
denotes specifications which apply over the full operating
temperature range of –40°C
≤
T
A
≤
85°C for I grades, 0°C
≤
T
A
≤
70°C for SW grades, V
S
= 5V, 0V; V
CM
= 0.1V, V
O
= 1.4V, unless
noted. (Note 7)
LT1178I/LT1179I
MIN
TYP
MAX
●
●
●
●
●
LT1178SW/LT1179SW
MIN
TYP
MAX
120
130
0.8
0.06
3
86
88
80
45
100
102
500
160
8
140
4.3
3.8
15
11
190
650
800
4.5
0.50
7
UNITS
µV
µV
µV/°C
nA
nA
dB
dB
V/mV
V/mV
mV
mV
V
V
µA
80
80
0.6
0.07
4
84
86
55
35
98
100
350
130
9
160
4.2
3.7
15
315
345
3.0
0.7
8
V
CM
= 0.05V to 3.2V I grade
V
CM
= 0V to 3.4V S grade
V
S
= 3.0V to 12V I grade
V
S
= 2.5V to 12V S grade
●
●
V
O
= 0.05V to 4V, No Load (Note 4)
●
●
V
O
= 0.05V to 3.5V, R
L
= 50k
Output Low, No Load
Output Low, I
SINK
= 100µA
Output High, No Load
Output High, 2k to GND
●
●
●
●
●
13
220
4.1
3.3
27
3.9
3.0
I
S
Supply Current per Amplifier
24
The
●
denotes specifications which apply over the full operating temperature range of 0°C
≤
T
A
≤
70°C, V
S
= 5V, 0V, V
CM
= 0.1V,
V
O
= 1.4V, unless noted.
SYMBOL
V
OS
PARAMETER
lnput Offset Voltage
CONDITIONS
LT1178
LT1178S8
LT1179
(Note 6)
LT1178S8
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
LT1178AC/LT1179AC
MIN
TYP
MAX
50
60
0.5
0.06
3
90
90
105
55
101
102
500
160
8
140
4.3
3.8
14
11
190
170
200
2.2
0.35
6
LT1178C/S8/LT1179C
MIN
TYP
MAX
65
85
70
0.6
0.6
0.06
3
86
88
80
45
100
102
500
160
8
140
4.3
3.8
15
11
190
250
350
290
3.0
3.5
0.50
7
UNITS
µV
µV
µV
µV/°C
µV/°C
nA
nA
dB
dB
V/mV
V/mV
mV
mV
V
V
µA
∆V
OS
/∆T
I
OS
I
B
CMRR
PSRR
A
VOL
Input Offset Voltage Drift
Input Offset Current
Input Bias Current
Common Mode Rejection Ratio V
CM
= 0V to 3.4V
Power Supply Rejection Ratio
V
S
= 2.5V to 12V
Large-Signal Voltage Gain
Maximum Output Voltage
Swing
V
O
= 0.05V to 4V, No Load (Note 4)
V
O
= 0.05V to 3.5V, R
L
= 50k
Output Low, No Load
Output Low, I
SINK
= 100µA
Output High, No Load
Output High, 2k to GND
4.1
3.3
4.1
3.3
21
I
S
Supply Current per Amplifier
24
11789fb
4
LT1178/LT1179
ELECTRICAL CHARACTERISTICS
V
S
=
±15V,
T
A
= 25°C, unless noted.
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
LT1178SW
LT1179SW
LT1178S8
I
OS
I
B
lnput Offset Current
Input Bias Current
Input Voltage Range
CMRR
PSRR
A
VOL
V
OUT
SR
GBW
I
S
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
Slew Rate
Gain Bandwidth Product
Supply Current per Amplifier
V
CM
= 13.5V, –15V
V
S
= 5V, 0V to
±18V
V
O
=
±10V,
R
L
= 50k
V
O
=
±10V,
No Load
R
L
= 50k
R
L
= 2k
A
V
= 1
f
O
≤
5kHz
13.5
–15.0
97
96
300
600
±13.0
±11.0
0.02
0.05
3
13.9
–15.3
106
112
1200
2500
±14.2
±12.7
0.04
85
16
21
0.25
5
13.5
–15.0
94
94
250
400
±13.0
±11.0
0.02
CONDITIONS
LT1178AC/LT1179AC
MIN
TYP
MAX
80
350
LT1178I/C/S/LT1179I/C/S
MIN
TYP
MAX
100
150
160
120
0.05
3
13.9
–15.3
106
112
1000
2500
±14.2
±12.7
0.04
85
17
25
480
900
1050
350
0.35
6
UNITS
µV
µV
µV
µV
nA
nA
V
V
dB
dB
V/mV
V/mV
V
V
V/µs
kHz
µA
The
●
denotes specifications which apply over the full operating temperature range of –40°C
1. Introduction
Electronic scales are gradually replacing traditional measuring tools like springs and balances in everyday life, such as electronic price computing scales and electronic weigh...[详细]
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