LM13700MX/NOPB National Semiconductor, LM13700MX/NOPB Datasheet - Page 17

• Manufacturer Part Number: LM13700MX/NOPB
• Description: IC AMP DUAL OP TRANSCOND 16-SOIC
• Manufacturer: National Semiconductor

Specifications of LM13700MX/NOPB

• Amplifier Type: Transconductance
• Number Of Circuits: 2
• Output Type: Push-Pull
• Slew Rate: 50 V/µs
• Gain Bandwidth Product: 2MHz
• Current - Input Bias: 1µA
• Voltage - Input Offset: 300µV
• Current - Supply: 2.6mA
• Current - Output / Channel: 650µA
• Voltage - Supply, Single/dual (±): 10 V ~ 36 V, ±5 V ~ 18 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• -3db Bandwidth: -
• Other names: *LM13700MX; *LM13700MX/NOPB; LM13700MX

Voltage Controlled Oscillators
Figure 18 shows how to build a VCO using one amplifier when the other
amplifier is needed for another function.
FIGURE 18. Single Amplifier VCO
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FIGURE 17. Sinusoidal VCO
(Continued)
17
Additional Applications
Figure 19 presents an interesting one-shot which draws no
power supply current until it is triggered. A positive-going
trigger pulse of at least 2V amplitude turns on the amplifier
through R
plifier regenerates and latches its output high until capacitor
C charges to the voltage level on the non-inverting input. The
output then switches low, turning off the amplifier and dis-
charging the capacitor. The capacitor discharge rate is
speeded up by shorting the diode bias pin to the inverting
input so that an additional discharge current flows through D
when the amplifier output switches low. A special feature of
this timer is that the other amplifier, when biased from V
can perform another function and draw zero stand-by power
as well.
B
and pulls the non-inverting input high. The am-
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