LM346N National Semiconductor, LM346N Datasheet - Page 14

• Manufacturer Part Number: LM346N
• Description: IC OP AMP PROGRAM QUAD 16-DIP
• Manufacturer: National Semiconductor

Specifications of LM346N

• Amplifier Type: General Purpose
• Number Of Circuits: 4
• Slew Rate: 0.4 V/µs
• Gain Bandwidth Product: 1.2MHz
• Current - Input Bias: 50nA
• Voltage - Input Offset: 500µV
• Current - Supply: 1.4mA
• Current - Output / Channel: 20mA
• Voltage - Supply, Single/dual (±): 3 V ~ 36 V, ±1.5 V ~ 18 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Output Type: -
• -3db Bandwidth: -
• Other names: *LM346N; LM346; LM346NNS

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Active Filters Applications
Ex: f
Fine tuning can be further accomplished through R
Miscellaneous Applications
• Since for this filter the GBW product of all 4 amplifiers has been designed to be the same (∼1 MHz) only one current source can be used to bias the circuit.
• For better performance, use a matched NPN pair.
c
= 20 kHz, H
o
(gain of the filter) = 1, Q
A 4th Order Butterworth Low Pass Capacitorless Filter
01
= 0.541, Q
b
.
o2
(Continued)
= 1.306.
with Bias Current Reduction
A Unity Gain Follower
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