LT1490A/LT1491A
5
14901afd
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating
temperature range of –40°C ≤ T
A
≤ 85°C, otherwise specifications are at T
A
= 25°C. V
S
= 3V, 0V; V
S
= 5V, 0V; V
CM
= V
OUT
= half supply
unless otherwise noted. (Note 4)
The ● denotes specifications which apply over the full operating temperature range of – 40°C ≤ T
A
≤ 85°C, otherwise specifications are
at T
A
= 25°C. V
S
= ±15V, V
CM
= 0V, V
OUT
= 0V unless otherwise noted. (Note 4)
SYMBOL PARAMETER CONDITIONS
LT1490AC/LT1491AC
LT1490AI/LT1491AI
UNITSMIN TYP MAX
PSRR Power Supply Rejection Ratio V
S
= 2.5V to 12.5V, V
CM
= V
O
= 1V
l
84 98 dB
Minimum Operating Supply Voltage
l
2 2.5 V
Reverse Supply Voltage I
S
= –100µA per Amplifier
l
18 27 V
I
S
Supply Current per Amplifier
(Note 7)
l
40 50
55
µA
µA
GBW Gain Bandwidth Product
(Note 6)
f = 1kHz
0°C ≤ T
A
≤ 70°C
–40°C ≤ T
A
≤ 85°C
l
l
110
100
90
180 kHz
kHz
kHz
SR Slew Rate
(Note 8)
A
V
= –1, R
L
= ∞
0°C ≤ T
A
≤ 70°C
–40°C ≤ T
A
≤ 85°C
l
l
0.035
0.031
0.030
0.06 V/µs
V/µs
V/µs
SYMBOL PARAMETER CONDITIONS
LT1490AC/LT1491AC
LT1490AI/LT1491AI
UNITSMIN TYP MAX
V
OS
Input Offset Voltage (Note 5) LT1490A N, S Packages
0°C ≤ T
A
≤ 70°C
–40°C ≤ T
A
≤ 85°C
l
l
150 700
950
1100
µV
µV
µV
LT1490A MS8 Package, LT1491A N, S Packages
0°C ≤ T
A
≤ 70°C
–40°C ≤ T
A
≤ 85°C
l
l
250 1200
1350
1500
µV
µV
µV
LT1490A DD, LT1491A DHC
0°C ≤ T
A
≤ 70°C
–40°C ≤ T
A
≤ 85°C
l
l
285 1400
1550
1700
µV
µV
µV
Input Offset Voltage Drift (Note 9) –40°C ≤ T
A
≤ 85°C
LT1490A DD, LT1491A DHC, –40°C ≤ T
A
≤ 85°C
l
l
2
2
6
7
µV/°C
µV/°C
I
OS
Input Offset Current
l
0.2 0.8 nA
I
B
Input Bias Current
l
18 nA
Input Bias Current Drift –40°C ≤ T
A
≤ 85°C
l
5 pA/°C
Input Noise Voltage 0.1Hz to 10Hz 1 µV
P-P
e
n
Input Noise Voltage Density f = 1kHz 50 nV/√Hz
i
n
Input Noise Current Density f = 1kHz 0.015 pA/√Hz
R
IN
Input Resistance Differential
Common Mode, V
CM
= –15V to 14V
617
15000
MΩ
MΩ
C
IN
Input Capacitance 4.6 pF
Input Voltage Range
l
–15 29 V
CMRR Common Mode Rejection Ratio V
CM
= –15V to 29V
l
80 98 dB
A
VOL
Large-Signal Voltage Gain V
O
= ±14V, R
L
= 10k
0°C ≤ T
A
≤ 70°C
–40°C ≤ T
A
≤ 85°C
l
l
100
75
50
250 V/mV
V/mV
V/mV
V
O
Output Voltage Swing No Load
I
OUT
= ±5mA
I
OUT
= ±10mA
l
l
±14.9
±14.5
±14.5
±14.978
±14.750
±14.670
V
V
V
