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1.2 Volt Reference:
National Semiconductor Application
Notes,04-Nov-1995 / |
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Circuit Measures Small Currents
Referenced To High-Voltage Rails:
01/07/02 Electronic Design - Ideas for Design /
Designs that need to measure small signals
riding on high-voltage power rails suggest the
use of isolation devices. However, a
high-common-mode-voltage instrumentation
amplifier used with a rail-to-rail input and
output amplifier can recover the. . . |
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IC Voltage Reference has 1 Ppm
Per Degree Drift:
National Semiconductor Application
Notes,04-Nov-1995 |
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Linear Brief 41 Precision
Reference Uses Only Ten Microamperes:
National Semiconductor Application
Notes,02-Mar-1999 |
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:
National Semiconductor Application
Notes,04-Nov-1995 / |
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: 11/07/96
EDN-Design Ideas |
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Supply circuitry selects main or
backup voltage and disconnects load:
07/21/97 Electronic Design - Ideas for Design /
A complete portable-equipment power supply,
suitable for systems that can be plugged into a
docking station, is presented in this circuit
idea. When the main supply is removed or falls
out of regulation, selector circuitry
automatically switches the. . . |
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Supply delivers pin programmable
multiple references:
05/01/03 EDN-Design Ideas / In
the circuit of Figure 1, the REF01, IC1, is a
buried-zener-diode-based, precision 10V
reference that features minimal noise and drift
over temperature. The circuit provides not only
the 10V output of the REF01, but also a 5V
output that a REF02 reference would deliver. In
addition, the circuit provides 5 V 10V, and an
unbalanced dual reference, the sum of whose
voltages is precisely 10V... |
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Voltage Reference improves JFET:
10/26/00 EDN-Design Ideas / PDF
contains multiple circuits - scroll to find this
circuit The common JFET current-source in Figure
1a has average output impedance and depends
heavily on the JFET's V P and I DSS variations.
These manufacturing variations limit the initial
accuracy of the current setpoint that the
circuit can obtain with a... |
