LMC6024IM/NOPB National Semiconductor, LMC6024IM/NOPB Datasheet - Page 10

• Manufacturer Part Number: LMC6024IM/NOPB
• Description: IC OP AMP QUAD LP CMOS 14-SOIC
• Manufacturer: National Semiconductor

Specifications of LMC6024IM/NOPB

• Amplifier Type: General Purpose
• Number Of Circuits: 4
• Output Type: Rail-to-Rail
• Slew Rate: 0.11 V/µs
• Gain Bandwidth Product: 350kHz
• Current - Input Bias: 0.04pA
• Voltage - Input Offset: 1000µV
• Current - Supply: 160µA
• Current - Output / Channel: 40mA
• Voltage - Supply, Single/dual (±): 4.75 V ~ 15.5 V, ±2.38 V ~ 7.75 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Number Of Channels: 4
• Voltage Gain Db: 120 dB
• Common Mode Rejection Ratio (min): 63 dB
• Input Offset Voltage: 9 mV at 5 V
• Operating Supply Voltage: 5 V, 9 V, 12 V, 15 V
• Supply Current: 0.24 mA at 5 V
• Maximum Operating Temperature: + 85 C
• Maximum Dual Supply Voltage: +/- 7.75 V
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• -3db Bandwidth: -
• Lead Free Status / Rohs Status: Details
• Other names: *LMC6024IM; *LMC6024IM/NOPB; LMC6024IM

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Application Hints
This would cause a 100 times degradation from the
LMC6024’s actual performance. However, if a guard ring is
held within 5 mV of the inputs, then even a resistance of 10
ohms would cause only 0.05 pA of leakage current, or per-
The designer should be aware that when it is inappropriate
to lay out a PC board for the sake of just a few circuits, there
is another technique which is even better than a guard ring
on a PC board: Don’t insert the amplifier’s input pin into the
board at all, but bend it up in the air and use only air as an
(b) Non-Inverting Amplifier
(a) Inverting Amplifier
FIGURE 4. Example of Guard Ring in P.C. Board Layout (Using the LMC6024)
(Continued)
FIGURE 5. Guard Ring Connections
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10
haps a minor (2:1) degradation of the amplifier’s perfor-
mance. See Figure 5a, Figure 5b, Figure 5c for typical
connections of guard rings for standard op-amp configura-
tions. If both inputs are active and at high impedance, the
guard can be tied to ground and still provide some protec-
tion; see Figure 5d.
insulator. Air is an excellent insulator. In this case you may
have to forego some of the advantages of PC board con-
struction, but the advantages are sometimes well worth the
effort of using point-to-point up-in-the-air wiring. See Figure
6.
(d) Howland Current Pump
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(c) Follower
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