Datasheet

5
LT1490A/LT1491A
sn1490, 14901afbs
LT1490AH/LT1491AH
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage (Note 5) LT1490AHS8 110 500 µV
● 2500 µV
LT1490AHMS8, LT1491AHS 220 1000 µV
● 3000 µV
Input Offset Voltage Drift (Note 9) ● 36 µV/°C
I
OS
Input Offset Current ● 2nA
V
CM
= 44V (Note 6) ● 1.5 µA
I
B
Input Bias Current ● 20 nA
V
CM
= 44V (Note 6) ● 15 µA
Input Voltage Range ● 0.3 44 V
CMRR Common Mode Rejection Ratio V
CM
= 0.3V to V
CC
–1V ● 60 dB
(Note 6) V
CM
= 0.3V to 44V ● 74 dB
A
VOL
Large-Signal Voltage Gain V
S
= 3V, V
O
= 500mV to 2.5V, R
L
= 10k 200 1500 V/mV
● 25 V/MV
V
S
= 5V, V
O
= 500mV to 4.5V, R
L
= 10k 400 1500 V/mV
● 50 V/mV
V
OL
Output Voltage Swing Low V
S
= 3V, No Load ● 15 mV
V
S
= 3V, I
SINK
= 2.5mA ● 450 mV
V
S
= 5V, No Load ● 15 mV
V
S
= 5V, I
SINK
= 2.5mA ● 500 mV
V
OH
Output Voltage Swing High V
S
= 3V, No Load ● 2.925 V
V
S
= 3V, I
SOURCE
= 5mA ● 2.350 V
V
S
= 5V, No Load ● 4.925 V
V
S
= 5V, I
SOURCE
= 10mA ● 4.100 V
PSRR Power Supply Rejection Ratio V
S
= 2.5V to 12.5V, V
CM
= V
O
= 1V ● 80 dB
Minimum Operating Supply Voltage ● 2.5 V
Reverse Supply Voltage I
S
= –100µA per Amplifier ● 18 V
The ● denotes specifications which apply over the full operating temperature range of – 40°C ≤ T
A
≤ 125°C. V
S
= 3V, 0V; V
S
= 5V, 0V;
V
CM
= V
OUT
= half supply unless otherwise noted. (Note 4)
LT1490AC/LT1491AC
LT1490AI/LT1491AI
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
SC
Short-Circuit Current (Note 2) Short to GND ±20 ±25 mA
0°C ≤ T
A
≤ 70°C ● ±15 mA
–40°C ≤ T
A
≤ 85°C ● ±10 mA
PSRR Power Supply Rejection Ratio V
S
= ±1.25V to ±22V ● 88 98 dB
I
S
Supply Current per Amplifier 50 70 µA
● 85 µA
GBW Gain Bandwidth Product f = 1kHz 125 200 kHz
0°C ≤ T
A
≤ 70°C ● 110 kHz
–40°C ≤ T
A
≤ 85°C ● 100 kHz
SR Slew Rate A
V
= –1, R
L
= ∞, V
O
= ±10V, 0.0375 0.07 V/µs
Measure at V
O
= ±5V
0°C ≤ T
A
≤ 70°C ● 0.0330 V/µs
–40°C ≤ T
A
≤ 85°C ● 0.0300 V/µs
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
= ±15V; V
CM
= 0V, V
OUT
= 0V unless otherwise noted. (Note 4)