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Technique Increases Low Cost DAC's Resolution: 04/09/98 EDN-Design Ideas
/ (added 3/03) In telemetry or security applications in which a modem connection automatically establishes itself between two systems, a
failure in one of the systems can interrupt the data exchange while the connection remains established until someone physically breaks the
line or restarts the failed system. This situation can also happen if your PC crashes during a long-lasting Internet download. To prevent this
problem, the circuit in Figure 1 continuously supervises the RS-232C data lines (TxD and RxD) and automatically hangs up the connection when
the circuit detects a long period without transmitted or received data.... |
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The Alexander Current-Feedback Audio Power Amplifier: AN-211 Analog
Devices Application Notes (app note added 2/06) |
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Timing Synchronization for Multiple AD9786 TxDACs: AN-747 Analog Devices
Application Notes (app note added 2/06) |
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Twin DAC's Produce True Bipolar Operation: 08/18/94
EDN-Design Ideas / (added 3/03) The 8-bit multiplying DAC-08 is a versatile device that offers excellent performance at low cost. This DAC
produces an output current that is the product of an 8-bit digital number and the input reference current. Either a unipolar voltage source
for normal D/A conversion or a bipolar signal voltage for multiplying D/A .... |
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Two DAC Circuit Adds and Subtracts: 09/01/98 EDN-Design Ideas / (added 3/03) |
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Understanding and Preventing Latch-up in CMOS DACs: AN-109 Analog Devices Application Notes (app note added 2/06) |
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Understanding LOGDACs: AN-208 Analog Devices Application Notes (app note added 2/06) LOGDACs are CMOS Multiplying DACs
With an Expontial (Anti-Logarithmic) Digital-to-Analog Transfer Characteristic (Rather Than a Linear D/A Transfer Characteristic)
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Understanding Pin Compatibility in the TxDAC® Line of High Speed D/A Converters:
AN-595 Analog Devices Application Notes (app note added 2/06) |
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Use a DAC to Vary LVDT Excitation: 10/02/03 EDN Design
Ideas / (added 02/05) LVDTs (linear variable differential transformers) are electromechanical measuring devices that convert
the position of a magnetic core into electrical signals. You generate these signals via excitation on the primary side. The results on the
secondary side—typically, two secondary windings—depend on the position of the core (Figure 1).... |
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Using the AD1836 and AD1953 for a 4-In/9-Out Analog System with DSP:
AN-620 Analog Devices Application Notes (app note added 2/06) |
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Using the AD9708/AD9760/AD9701/AD9764-EB Evaluation Board: AN-420 Analog Devices Application Notes (app note added 2/06)
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Using the AD9709, AD9763, AD9765, AD9767 Dual DAC Evaluation Board: AN-555 Analog Devices Application Notes (app note added
2/06) |
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Variable Gain Stage uses Voltage Output Dac: 10/27/94 EDN-Design Ideas / (added 02/05) The circuit in Fig 1 delivers a pure,
buffered, and level-controlled sine wave. With no tuning requirements, the circuit works with all crystals up to about 30 MHz….
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Versatile Programmable Amplifiers using Digital Potentiometers with Nonvolatile
Memory: AN-579 Analog Devices Application Notes (app note added 2/06) |
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Video Formats and Required Load Terminations: AN-205 Analog Devices Application Notes (app note added 2/06) |
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Video-Standard Selection Circuit for the AD722 using Low Cost Crystals:
AN-412 Analog Devices Application Notes (app note added 2/06) |
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Voltage Adjustment Applications of the DAC-8800 TrimDAC®, an Octal, 8-Bit D/A Converter: AN-142 Analog Devices Application Notes
(app note added 2/06) |
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Voltage Output D / A Converter Offers Low Power Operation & Shutdown:
Maxim Application Notes / 25 / Apr-10 (app note added 6/06) |
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World’s First Dual 12-Bit DACs in SO-8 (LTC1446/LTC1446L): DN131
Design Notes (Linear Technology) (app note added 6/06) |
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Zero Power A/D Converter uses Printer Port: 07/06/95 EDN-Design Ideas /
(added 11/05) You can use a desktop or laptop PC to monitor physical variables such as temperature or pressure. A convenient way to do this is
to connect an A/D converter through the ubiquitous Centronics printer port (Fig 1). The current requirement of the ADC0804LCN used here is
less than 1.5 mA at 5V supply voltage with a 640-kHz clock. Tristate-buffer 74HC244 multiplexes 8 bits of A/D-converter data through 4 bits
(54 through 57) of the status port of the printer adapter.... |
