Datasheet

LT1124/LT1125
4
11245fe
ELECTRICAL CHARACTERISTICS
T
A
= 25°C, V
S
= ±15V, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS (Note 2)
LT1124AC/AI/AM
LT1125AC/AM
LT1124C/I/M
LT1125C/M
UNITSMIN TYP MAX MIN TYP MAX
V
OS
Input Offset Voltage LT1124
LT1125
20
25
70
90
25
30
100
140
µV
µV
∆V
OS
∆Time
Long-Term Input Offset
Voltage Stability
0.3 0.3 µV/Mo
I
OS
Input Offset Current LT1124
LT1125
5
6
15
20
6
7
20
30
nA
nA
I
B
Input Bias Current ±7 ±20 ±8 ±30 nA
e
n
Input Noise Voltage 0.1Hz to 10Hz (Notes 8, 9) 70 200 70 nV
P-P
Input Noise Voltage Density f
O
= 10Hz (Note 5)
f
O
= 1000Hz (Note 3)
3.0
2.7
5.5
4.2
3.0
2.7
5.5
4.2
nV/√Hz
nV/√Hz
i
n
Input Noise Current Density f
O
= 10Hz
f
O
= 1000Hz
1.3
0.3
1.3
0.3
pA/√Hz
pA/√Hz
V
CM
Input Voltage Range ±12 ±12.8 ±12 ±12.8 V
CMRR Common Mode Rejection Ratio V
CM
= ±12V 112 126 106 124 dB
PSRR Power Supply Rejection Ratio V
S
= ±4V to ±18V 116 126 110 124 dB
A
VOL
Large-Signal Voltage Gain R
L
≥ 10k, V
OUT
= ±10V
R
L
≥ 2k, V
OUT
= ±10V
5
2
17
4
3.0
1.5
15
3
V/µV
V/µV
V
OUT
Maximum Output Voltage Swing R
L
≥ 2k ±13 ±13.8 ±12.5 ±13.8 V
SR Slew Rate R
L
≥ 2k (Notes 3, 7) 3 4.5 2.7 4.5 V/µs
GBW Gain-Bandwidth Product f
O
= 100kHz (Note 3) 9 12.5 8 12.5 MHz
Z
O
Open-Loop Output Resistance V
OUT
= 0, I
OUT
= 0 75 75 
I
S
Supply Current per Amplifi er 2.3 2.75 2.3 2.75 mA
Channel Separation f ≤ 10Hz (Note 9)
V
OUT
= ±10V, R
L
= 2k
134 150 130 150 dB
The l denotes the specifi cations which apply over the –55°C ≤ T
A
≤ 125°C temperature range, V
S
= ±15V, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS (Note 2)
LT1124AM
LT1125AM
LT1124M
LT1125M
UNITSMIN TYP MAX MIN TYP MAX
V
OS
Input Offset Voltage LT1124
LT1125
l
l
50
55
170
190
60
70
250
290
µV
µV
∆V
OS
∆Temp
Average Input Offset
Voltage Drift
(Note 5)
l
0.3 1.0 0.4 1.5 µV/°C
I
OS
Input Offset Current LT1124
LT1125
l
l
18
18
45
55
20
20
60
70
nA
nA
I
B
Input Bias Current
l
±18 ±55 ±20 ±70 nA
V
CM
Input Voltage Range
l
±11.3 ±12 ±11.3 ±12 V
CMRR Common Mode Rejection Ratio V
CM
= ±11.3V
l
106 122 100 120 dB
PSRR Power Supply Rejection Ratio V
S
= ±4V to ±18V
l
110 122 104 120 dB
A
VOL
Large-Signal Voltage Gain R
L
≥ 10k, V
OUT
= ±10V
R
L
≥ 2k, V
OUT
= ±10V
l
l
3
1
10
3
2.0
0.7
10
2
V/µV
V/µV
V
OUT
Maximum Output Voltage Swing R
L
≥ 2k
l
±12.5 ±13.6 ±12 ±13.6 V
SR Slew Rate R
L
≥ 2k (Notes 3, 7)
l
2.3 3.8 2 3.8 V/µs
I
S
Supply Current per Amplifi er
l
2.5 3.25 2.5 3.25 mA