LPC660IMX/NOPB National Semiconductor, LPC660IMX/NOPB Datasheet - Page 10

• Manufacturer Part Number: LPC660IMX/NOPB
• Description: IC OP AMP QUAD LOPWR CMOS 14SOIC
• Manufacturer: National Semiconductor

Specifications of LPC660IMX/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: 0.002pA
• 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: 6 mV at 5 V
• Operating Supply Voltage: 9 V, 12 V
• Supply Current: 0.24 mA at 5 V
• Maximum Operating Temperature: + 85 C
• Maximum Dual Supply Voltage: +/- 7.5 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: *LPC660IMX; *LPC660IMX/NOPB; LPC660IMX

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Application Hints
normally considered a very large resistance, could leak 5 pA
if the trace were a 5V bus adjacent to the pad of an input.
This would cause a 100 times degradation from the
LPC660’s actual performance. However, if a guard ring is
held within 5 mV of the inputs, then even a resistance of
FIGURE 4. Example of Guard Ring in P.C. Board Layout using the LPC660
(Continued)
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perhaps 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.
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ohms would cause only 0.05 pA of leakage current, or
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