LMC6484AIM National Semiconductor, LMC6484AIM Datasheet - Page 17

• Manufacturer Part Number: LMC6484AIM
• Description: Operational Amplifier (Op-Amp) IC
• Manufacturer: National Semiconductor

Specifications of LMC6484AIM

• No. Of Amplifiers: 4
• Slew Rate: 1.3V/µs
• No. Of Pins: 14
• Amplifier Type: Operational
• Mounting Type: Surface Mount
• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Number Of Channels: 4
• Voltage Gain Db: 116.47 dB
• Common Mode Rejection Ratio (min): 70 dB
• Input Offset Voltage: 0.75 mV at 5 V
• Operating Supply Voltage: 5 V, 9 V, 12 V, 15 V
• Supply Current: 2.8 mA at 5 V
• Maximum Operating Temperature: + 85 C
• Package / Case: SOIC-14 Narrow
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Application Information
for offset voltage, CMRR and gain. Low cost and low power
consumption are the main advantages of this two op-amp
circuit.
11.0 Spice Macromodel
A spice macromodel is available for the LMC6484. This
model includes accurate simulation of:
and many more characteristics as listed on the macromodel
disk.
Contact your local National Semiconductor sales office to
obtain an operational amplifier spice model library disk.
Typical Single-Supply Applications
• input common-mode voltage range
• frequency and transient response
• GBW dependence on loading conditions
• quiescent and dynamic supply current
• output swing dependence on loading conditions
FIGURE 17. Half-Wave Rectifier with
Input Current Protection (RI)
FIGURE 16. Low-Power Two-Op-Amp Instrumentation Amplifier
(Continued)
DS011714-31
17
Higher frequency and larger common-mode range applica-
tions are best facilitated by a three op-amp instrumentation
amplifier.
The circuit in Figure 17 use a single supply to half wave rec-
tify a sinusoid centered about ground. R
the amplifier caused by the input voltage exceeding the sup-
ply voltage. Full wave rectification is provided by the circuit in
Figure 19 .
FIGURE 18. Half-Wave Rectifier Waveform
with Input Current Protection (R
FIGURE 19. Full Wave Rectifier
DS011714-30
I
limits current into
DS011714-33
I
)
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DS011714-32