LT1491CN#PBF Linear Technology, LT1491CN#PBF Datasheet - Page 9

• Manufacturer Part Number: LT1491CN#PBF
• Description: IC OP-AMP R-R IN/OUT QUAD 14-DIP
• Manufacturer: Linear Technology
• Series: Over-The-Top®r

Specifications of LT1491CN#PBF

• 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: 350µV
• 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: Through Hole
• Package / Case: 14-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• -3db Bandwidth: -

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
+
–
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