LT1490A/LT1491A
4
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ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating
temperature range of – 40°C ≤ TA ≤ 85°C, otherwise specifications are at TA = 25°C. VS = 3V, 0V; VS = 5V, 0V; VCM = VOUT = half supply
unless otherwise noted. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
LT1490AC/LT1491AC
LT1490AI/LT1491AI
UNITS
MIN
TYP
MAX
VOS
Input Offset Voltage (Note 5)
LT1490A N, S Packages
0°C ≤ TA ≤ 70°C
–40°C ≤ TA ≤ 85°C
l
110
500
700
800
μV
LT1490A MS8 Package, LT1491A N, S Packages
0°C ≤ TA ≤ 70°C
–40°C ≤ TA ≤ 85°C
l
220
1000
1200
1400
μV
LT1490A DD, LT1491A DHC
0°C ≤ TA ≤ 70°C
–40°C ≤ TA ≤ 85°C
l
250
1200
1400
1600
μV
Input Offset Voltage Drift (Note 9)
–40°C ≤ TA ≤ 85°C
LT1490A DD, LT1491A DHC, –40°C ≤ TA ≤ 85°C
l
2
4
6
μV/°C
IOS
Input Offset Current
VCM = 44V (Note 6)
l
0.2
0.8
nA
μA
IB
Input Bias Current
VCM = 44V (Note 6)
VS = 0V
l
1
3
0.3
8
10
nA
μA
nA
Input Bias Current Drift
–40°C ≤ TA ≤ 85°C
l
2
pA/°C
Input Noise Voltage
0.1Hz to 10Hz
1
μVP-P
en
Input Noise Voltage Density
f = 1kHz
50
nV/√Hz
in
Input Noise Current Density
f = 1kHz
0.015
pA/√Hz
RIN
Input Resistance
Differential
Common Mode, VCM = 0V to 44V
6
4
17
11
MΩ
CIN
Input Capacitance
4.6
pF
Input Voltage Range
l
044
V
CMRR
Common Mode Rejection Ratio
(Note 6)
VCM = 0V to VCC – 1V
VCM = 0V to 44V
l
84
80
98
dB
AVOL
Large-Signal Voltage Gain
VS = 3V, VO = 500mV to 2.5V, RL = 10k
0°C ≤ TA ≤ 70°C
–40°C ≤ TA ≤ 85°C
l
200
133
100
1500
V/mV
VS = 5V, VO = 500mV to 4.5V, RL = 10k
0°C ≤ TA ≤ 70°C
–40°C ≤ TA ≤ 85°C
l
400
250
200
1500
V/mV
VOL
Output Voltage Swing Low
VS = 3V, No Load
VS = 3V, ISINK = 5mA
l
3
250
10
450
mV
VS = 5V, No Load
VS = 5V, ISINK = 5mA
VS = 5V, ISINK = 10mA
l
3
250
330
10
500
mV
VOH
Output Voltage Swing High
VS = 3V, No Load
VS = 3V, ISOURCE = 5mA
l
2.95
2.55
2.978
2.6
V
VS = 5V, No Load
VS = 5V, ISOURCE = 10mA
l
4.95
4.30
4.978
4.6
V
ISC
Short-Circuit Current (Note 2)
VS = 3V, Short to GND
VS = 3V, Short to VCC
10
15
30
mA
VS = 5V, Short to GND
VS = 5V, Short to VCC
15
25
mA