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Studijní materiály
Zjednodušená ukázka:
Stáhnout celý tento materiálnal Processing (Continued)
Nonlinear Operational Amplifier with Temperature Compensated Breakpoints
00705773
Current Monitor
00705774
AN-31
www.national.com 26
Section 3 — Signal Processing (Continued)
Saturating Servo Preamplifier with Rate Feedback
00705775
Power Booster
00705776
AN-31
www.national.com27
Section 3 — Signal Processing (Continued)
Analog Multiplier
00705777
Long Interval Timer Fast Zero Crossing Detector
00705778
*Low leakage −0.017 µF per second delay
00705779
Propagation delay approximately 200 ns
†DTL or TTL fanout of three.
Minimize stray capacitance
Pin 8
AN-31
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Section 3 — Signal Processing (Continued)
Amplifier for Piezoelectric Transducer Temperature Probe
00705780
Low frequency cutoff = R1 C1
00705781
*Set for 0V at 0˚C
†Adjust for 100 mV/˚C
Photodiode Amplifier Photodiode Amplifier
00705782
V
OUT
=R1I
D
00705783
V
OUT
= 10 V/µA
*Operating photodiode with less than 3 mV across it eliminates leakage
currents.
High Input Impedance AC Follower
00705784
AN-31
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Section 3 — Signal Processing (Continued)
Temperature Compensated Logarithmic Converter
00705785
10 nA < I
IN
< 1mA
Sensitivity is 1V per decade
†1kΩ (±1%) at 25˚C, +3500 ppm/˚C.
Available from Vishay Ultronix, Grand Junction, CO, Q81 Series.
*Determines current for zero crossing on output: 10 µA as shown.
Root Extractor
00705786
*†2N3728 matched pairs
AN-31
www.national.com 30
Section 3 — Signal Processing (Continued)
Multiplier/Divider
00705787
Cube Generator
00705788
AN-31
www.national.com31
Section 3 — Signal Processing (Continued)
Fast Log Generator
00705789
†1kΩ (±1%) at 25˚C, +3500 ppm/˚C.
Available from Vishay Ultronix, Grand Junction, CO, Q81 Series.
Anti-Log Generator
00705790
†1kΩ (±1%) at 25˚C, +3500 ppm/˚C.
Available from Vishay Ultronix, Grand Junction, CO, Q81 Series.
AN-31
www.national.com 32
Notes
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
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www.national.com
Op
Amp
Circuit
Collection
AN-31
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
Vloženo: 26.04.2009
Velikost: 962,72 kB
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