LT1490A/LT1491A
7
14901afd
ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature
range of – 40°C ≤ TA ≤ 125°C. VS = ±15V, VCM = 0V, VOUT = 0V unless otherwise noted. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
LT1490AH/LT1491AH
UNITS
MIN
TYP
MAX
IS
Supply Current per Amplifier (Note 7)
l
40
50
70
μA
GBW
Gain Bandwidth Product (Note 6)
f = 1kHz
l
110
60
180
kHz
SR
Slew Rate (Note 8)
AV = –1, RL = ∞
l
0.035
0.015
0.06
V/μs
VOS
Input Offset Voltage (Note 5)
LT1490AHS8
l
150
700
2700
μV
LT1490AHMS8, LT1491AHS
l
250
1200
3200
μV
Input Offset Voltage Drift (Note 9)
l
3
7
μV/°C
IOS
Input Offset Current
l
2nA
IB
Input Bias Current
l
20
nA
Input Voltage Range
l
–14.7
29
V
CMRR
Common Mode Rejection Ratio
VCM = –14.7V to 29V
l
72
dB
AVOL
Large-Signal Voltage Gain
VO = ±14V, RL = 10k
l
100
4
250
V/mV
VO
Output Voltage Swing
No Load
IOUT = ±2.5mA
l
±14.8
±14.3
V
PSRR
Power Supply Rejection Ratio
VS = ±1.25V to ±22V
l
84
dB
IS
Supply Current per Amplifier
l
50
70
95
μA
GBW
Gain Bandwidth Product
f = 1kHz
l
125
75
200
kHz
SR
Slew Rate
AV = –1, RL = ∞
l
0.0375
0.02
0.07
V/μs
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: A heat sink may be required to keep the junction temperature
below absolute maximum. This depends on the power supply voltage and
how many ampliers are shorted. The
θJA specied for the DD and DHC
package is with minimal PCB heat spreading metal. Using expanded metal
area on all layers of a board reduces this value.
Note 3: The LT1490AC/LT1491AC and LT1490AI/LT1491AI are guaranteed
functional over the operating temperature range of – 40°C to 85°C.
The LT1490AH/LT1491AH are guaranteed functional over the operating
temperature range of –40°C to 125°C.
Note 4: The LT1490AC/LT1491AC are guaranteed to meet specied
performance from 0°C to 70°C. The LT1490AC/LT1491AC are designed,
characterized and expected to meet specied performance from
–40°C to 85°C but are not tested or QA sampled at these temperatures.
The LT1490AI/LT1491AI are guaranteed to meet specied performance
from –40°C to 85°C. The LT1490AH/LT1491AH are guaranteed to meet
specied performance from – 40°C to 125°C.
Note 5: ESD (electrostatic discharge) sensitive device. Extensive use
of ESD protection devices are used internal to the LT1490A/LT1491A.
However, high electrostatic discharge can damage or degrade the device.
Use proper ESD handling precautions.
Note 6: VS = 5V limits are guaranteed by correlation to VS = 3V and
VS = ±15V tests.
Note 7: VS = 3V limits are guaranteed by correlation to VS = 5V and
VS = ±15V tests.
Note 8: Guaranteed by correlation to slew rate at VS = ±15V and GBW
at VS = 3V and VS = ±15V tests.
Note 9: This parameter is not 100% tested.