LM6218WM National Semiconductor, LM6218WM Datasheet - Page 6

• Manufacturer Part Number: LM6218WM
• Description: IC OP AMP DUAL FST SETLNG 14SOIC
• Manufacturer: National Semiconductor
• Series: VIP™r

Specifications of LM6218WM

• Amplifier Type: General Purpose
• Number Of Circuits: 2
• Slew Rate: 140 V/µs
• Gain Bandwidth Product: 17MHz
• Current - Input Bias: 200nA
• Voltage - Input Offset: 200µV
• Current - Supply: 5.5mA
• Current - Output / Channel: 20mA
• Voltage - Supply, Single/dual (±): ±5 V ~ 20 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Output Type: -
• -3db Bandwidth: -
• Other names: *LM6218WM

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Typical Performance Characteristics
Amplifier to Amplifier Coupling
Step Response, Av = +1, Vs =
Application Information
General
The LM6118/LM6218 are high-speed, fast-settling dual
op-amps. To insure maximum performance, circuit board
layout is very important. Minimizing stray capacitance at the
inputs and reducing coupling between the amplifier’s input
and output will minimize problems.
Supply Bypassing
To assure stability, it is recommended that each power sup-
ply pin be bypassed with a 0.1 µF low inductance capacitor
near the device. If high frequency spikes from digital circuits
or switching supplies are present, additional filtering is rec-
ommended. To prevent these spikes from appearing at the
output, R-C filtering of the supplies near the device may be
necessary.
Power Dissipation
These amplifiers are specified to 20 mA output current. If
accompanied with high supply voltages, relatively high
power dissipation in the device will occur, resulting in high
±
15V
DS010254-23
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Settling Time, Vs =
Step Response, Av = −1, Vs =
(Continued)
6
junction temperatures. In these cases the package thermal
resistance must be taken into consideration. (See Note 5
under Electrical Characteristics.) For high dissipation, an N
package with large areas of copper on the pc board is
recommended.
Amplifier Shut Down
If one of the amplifiers is not used, it can be shut down by
connecting both the inverting and non-inverting inputs to the
V− pin. This will reduce the power supply current by approxi-
mately 25%.
Capacitive Loading
Maximum capacitive loading is about 50 pF for a closed-loop
gain of +1, before the amplifier exhibits excessive ringing
and becomes unstable. A curve showing maximum capaci-
tive loads, with different closed-loop gains, is shown in the
Typical Performance Characteristics section.
To drive larger capacitive loads at low closed-loop gains,
isolate the amplifier output from the capacitive load with
±
15V
±
15V
DS010254-9
DS010254-7