Datasheet

LT2178/LT2179
4
21789fc
SYMBOL PARAMETER CONDITIONS
LT2178AI LT2178I/LT2179I
UNITSMIN TYP MAX MIN TYP MAX
A
VOL
Large-Signal Voltage Gain V
O
= 0.05V to 4V, No Load (Note 3)
V
O
= 0.05V to 3.5V, R
L
= 50k
l
l
75
40
350
130
50
30
350
130
V/mV
V/mV
Maximum Output Voltage Swing Output Low, No Load
Output Low, I
SINK
= 100µA
l
l
9
160
13
220
9
160
13
220
mV
mV
Output High, No Load
Output High, 2k to GND
l
l
3.9
3
4.2
3.7
3.9
3
4.2
3.7
V
V
I
S
Supply Current per Amplifi er
l
15 24 15 27 µA
The l denotes the specifi cations which apply over the full operating
temperature range. V
S
= 5V, 0V, V
CM
= 0.1V, V
O
= 1.4V, –40°C ≤ T
A
≤ 85°C for I-grades, unless otherwise noted. (Note 6)
SYMBOL PARAMETER CONDITIONS
LT2178AC/LT2179AC LT2178C/LT2179C
UNITSMIN TYP MAX MIN TYP MAX
V
OS
Input Offset Voltage LT2178
LT2179
l
l
50
60
170
200
65
70
250
290
V/mV
V/mV
ΔV
OS
ΔT
Input Offset Voltage Drift LT2178 (Note 5)
LT2179
l
l
0.4
0.5
1.8
3
0.5
0.6
2.5
3.5
mV
mV
I
OS
Input Offset Current
l
0.06 0.35 0.06 0.5 nA
I
B
Input Bias Current
l
36 37 nA
CMRR Common Mode Rejection Ratio V
CM
= 0V to 3.4V
l
90 101 86 100 dB
PSRR Power Supply Rejection Ratio V
S
= 2.5V to 12V
l
90 102 88 102 dB
A
VOL
Large-Signal Voltage Gain V
O
= 0.05V to 4V, No Load (Note 3)
V
O
= 0.05V to 3.5V, R
L
= 50k
l
l
150
55
500
160
80
45
500
160
V/mV
V/mV
Maximum Output Voltage Swing Output Low, No Load
Output Low, I
SINK
= 100µA
l
l
8
140
11
190
8
140
11
190
mV
mV
Output High, No Load
Output High, 2k to GND
l
l
4.1
3.3
4.3
3.8
4.1
3.3
4.3
3.8
V
V
The l denotes the specifi cations which apply over the full operating temperature range. V
S
= 5V, 0V, V
CM
= 0.1V, V
O
= 1.4V,
0°C ≤ T
A
≤ 70°C, unless otherwise noted. (Note 7)
V
S
= ±15V, T
A
= 25°C, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS
LT2178AC/LT2178AI
LT2179AC
LT2178C/LT2178I
LT2179C/LT2179I
UNITSMIN TYP MAX MIN TYP MAX
V
OS
Input Offset Voltage LT2178
LT2179
70
80
300
350
90
100
400
450
V
V
I
OS
Input Offset Current 0.05 0.25 0.05 0.35 nA
I
B
Input Bias Current 3 5 3 6 nA
Input Voltage Range 13.5
–15
13.9
–15.3
13.5
–15
13.9
–15.3
V
V
CMRR Common Mode Rejection Ratio V
CM
= 13.5V to –15V 96 106 93 106 dB
PSRR Power Supply Rejection Ratio
V
S
= 5V, 0V to ±18V
96 112 94 112 dB
A
VOL
Large-Signal Voltage Gain
V
O
= ±10V, R
L
= 50k
V
O
= ±10V, No Load
300
600
1200
2500
250
400
1000
2500
V/mV
V/mV
V
OUT
Maximum Output Voltage Swing R
L
= 50k
R
L
= 2k
±13
±11
±14.2
±12.7
±13
±11
±14.2
±12.7
V
V
SR Slew Rate A
V
= 1 0.02 0.04 0.02 0.04 V/µs
ELECTRICAL CHARACTERISTICS