LT1491CS Linear Technology, LT1491CS Datasheet - Page 9

IC OP-AMP R-R IN/OUT QUAD 14SOIC

LT1491CS

Manufacturer Part Number
LT1491CS
Description
IC OP-AMP R-R IN/OUT QUAD 14SOIC
Manufacturer
Linear Technology
Series
Over-The-Top®r
Datasheet

Specifications of LT1491CS

Amplifier Type
General Purpose
Number Of Circuits
4
Output Type
Rail-to-Rail
Slew Rate
0.07 V/µs
Gain Bandwidth Product
200kHz
Current - Input Bias
1nA
Voltage - Input Offset
400µV
Current - Supply
50µA
Current - Output / Channel
25mA
Voltage - Supply, Single/dual (±)
2 V ~ 44 V, ±1 V ~ 22 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
14-SOIC (3.9mm Width), 14-SOL
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
-3db Bandwidth
-
Other names
Q882707

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SI PLIFIED SCHE ATIC
APPLICATIO S I FOR ATIO
Gain
The open-loop gain is almost independent of load when
the output is sourcing current. This optimizes perfor-
TYPICAL APPLICATIO S
W
ONE AMPLIFIER
+
R1
30k
2 A
Q5
Q1
Q4
f = 1
V
I
AT V
OUTPUT IS 5kHz SLEW LIMITED TRIANGLE WAVE
5V
S
OUT
= 200 A
100k
100k
2RC
S
Square Wave Oscillator
= 5V
= 5V, R = 50k, C = 1nF
– IN
+IN
U
Q6
P-P
C
0.1 F
WITH 5V SUPPLY
+
1/2 LT1490
R2
R3
1k
1k
U
W
59k
50k
D4
R
1490/91 TA02
U
W
D5
Q9
Q7
V
D1
OUT
Q8
Q10
U
D2
Q11
Q2
Q12
mance in single supply applications where the load is
returned to ground. The typical performance photo of
Open-Loop Gain for various loads shows the details.
Q13
V
IN
R4
40k
Optional Output Compensation for
Capacitive Loads Greater Than 200pF
Q14
R5
40k
+
1/2 LT1490
Q15
D3
Q16
Q3
LT1490/LT1491
150
0.22 F
Q17
Q18
Q19
Q20
1490/91 TA04
C
L
Q22
Q21
10,000pF
1490/91 SS
OUT
V
V
+
9

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