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LT1491 Datasheet(PDF) 4 Page - Linear Technology

Part # LT1491
Description  Dual and Quad Micropower Rail-to-Rail Input and Output Op Amps
PDF  12 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1491 Datasheet(HTML) 4 Page - Linear Technology

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LT1490/LT1491
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Offset Voltage Drift
0
°C ≤ TA ≤ 70°C (Note 6)
q
36
µV/°C
IOS
Input Offset Current
q
0.2
0.8
nA
IB
Input Bias Current
q
48
nA
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
0.03
pA/
√Hz
RIN
Input Resistance
Differential
6
17
M
Ω
Common Mode, VCM = – 15V to 14V
15000
M
Ω
CIN
Input Capacitance
4.6
pF
Input Voltage Range
q
–15
29
V
CMRR
Common Mode Rejection Ratio
VCM = – 15V to 29V
q
80
98
dB
AVOL
Large-Signal Voltage Gain
VO = ±14V, RL = 10k
100
250
V/mV
0
°C ≤ TA ≤ 70°C
q
75
V/mV
–40
°C ≤ TA ≤ 85°C
q
50
V/mV
VO
Output Voltage Swing
No Load
q
±14.9
±14.978
V
IOUT = ±5mA
q
±14.5
±14.750
V
IOUT = ±10mA
±14.5
±14.670
V
ISC
Short-Circuit Current (Note 1)
Short to GND
±20
±25
mA
0
°C ≤ TA ≤ 70°C
q
±15
mA
–40
°C ≤ TA ≤ 85°C
q
±10
mA
PSRR
Power Supply Rejection Ratio
VS = ±1.25V to ±22V
q
88
98
dB
IS
Supply Current per Amplifier
50
70
µA
q
85
µA
GBW
Gain Bandwidth Product
f = 1kHz
125
200
kHz
0
°C ≤ TA ≤ 70°C
q
110
kHz
–40
°C ≤ TA ≤ 85°C
q
100
kHz
SR
Slew Rate
AV = – 1, RL = ∞, VO = ±10V,
0.0375
0.07
V/
µs
Measure at VO = ±5V
0
°C ≤ TA ≤ 70°C
q
0.0330
V/
µs
–40
°C ≤ TA ≤ 85°C
q
0.0300
V/
µs
VS = ±15V, VCM = 0V, VOUT = 0V, TA = 25°C, unless otherwise noted. (Note 2)
ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the full operating
temperature range.
Note 1: A heat sink may be required to keep the junction temperature
below absolute maximum. This depends on the power supply voltage
and how many amplifiers are shorted.
Note 2: The LT1490/LT1491 are designed, characterized and expected
to meet these extended temperature limits, but are not tested at – 40
°C
and 85
°C. Guaranteed I grade parts are available, consult factory.
Note 3: VS = 5V limits are guaranteed by correlation to VS = 3V and
VS = ±15V tests.
Note 4: VS = 3V limits are guaranteed by correlation to VS = 5V and
VS = ±15V tests.
Note 5: Guaranteed by correlation to slew rate at VS = ±15V and GBW
at VS = 3V and VS = ±15V tests.
Note 6: This parameter is not 100% tested.



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