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Analog to Digital (A/D) Circuits
Converters -- Main Page

A/D Converters:   #'s      A      B - E      F - L      M - N      O - R      S - Z

Last Updated: June 02, 2021 01:44 PM

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1 IC Adds Analog Inputs to Digital PLC 05/11/95 EDN-Design Ideas Many low-cost programmable logic controllers   (PLCs] are digital only and have relay outputs, debounced digital inputs, and one or more counter inputs.  The circuit in Fig 1 adds four 8-bit analog inputs to even the most basic PLC.__ Circuit Design by Author Not Listed

12-Bit 3msps Sar ADC Solves Pipeline Problems DN192 Design Notes___ Linear Technology/Analog Devices

12-Bit ADC with Sequencer Simplifies Multiple-Input Applications DN274 Design Notes___ Linear Technology/Analog Devices

12-Bit Converter Upgrades µC's AD 07/07/94 EDN-Design Ideas Simple circuit in Fig 1 and an accompanying software routine let you easily substitute a multichannel 12-bit ADC for8-bit ADC internal to87C752 µC.  A single assembly can n implement both low and high-performance version of a__ Circuit Design by John Wettroth, Maxim Integrated Products, Sunnyvale, CA

16-Bit 333ksps ADC Achieves 90db Sinad,100db Thd & No Missing Codes DN177 Design Notes___ Linear Technology/Analog Devices

16-bit ADC provides 19-bit resolution 02/21/02 EDN-Design Ideas Many data-acquisition systems require both high accuracy and a fast acquisition rate.  These attributes allow the system to detect small data signals and to groupsensor channels into the same system.  Withchannels, the system can be smaller, less expensive, and less power-consuming.  Long-distance optical communications and medical equipment, such as CT scanners, can benefit from__ Circuit Design by Alain Guery and Charles Kitchin, Analog Devices, Wilmington, MA

16-Bit ADC Simplifies Current Measurements DN341 Design Notes___ Linear Technology/Analog Devices

16-Bit Resolution Unidirectional Current Sense into LTC2433 ADC The LTC2433-1 can accurately digitize signal with source impedances up to 5kΩ.  This LTC6101 current sense circuit uses a 4.99kΩ output resistance to meet this requirement, thus no additional buffering is necessary. __ Linear Technology/Analog Devices App Note, Mar 31, 2010

16-Channel 24-Bit Delta Sigma ADC Provides Small Flexible & Accurate Solutions for Data Acquisition DN297 Design Notes___ Linear Technology/Analog Devices

16mW Serial/Parallel 14-Bit ADC Samples at 200ksps DN180 Design Notes___ Linear Technology/Analog Devices

18-bit ADC uses PCs serial port 09/27/01 EDN-Design Ideas A PC usually requires a plug-in ADC card to process analog signals.  However, with the circuitry in Figure 1, a PC can communicate with an 18-bit ADC through its serial port.  The port provIdeas both positive and negative power supp__ Circuit Design by Yongping Xia, Teldata, Los Angeles, CA

1-and 2-Channel No Latency Delta Sigma™ 24-Bit ADCs Easily Digitize a Variety of Sensors Part 2 DN237 Design Notes___ Linear Technology/Analog Devices

1-and 2-Channel No Latency Deltasigma™ 24-Bit ADCs Easily Digitize a Variety of Sensors Part 1 DN236 Design Notes___ Linear Technology/Analog Devices

2 ADC channels double sensor precision 03/18/99 EDN-Design Ideas   (PDF contains multiple circuits, scroll to find this circuit) The accuracy of the onchip ADCs of numerous small and inexpensive 8-bit mPs is well-suited for many applications.  However, some  situations benefit from.   PDF contains multiple circuits, scroll to find this circuit__ Circuit Design by Luke J Barker, Reinke Manufacturing Co Inc, Deshler, NE

20-Bit 1Msps 0.5ppm INL SAR ADC The LTC®2378-20 is a versatile general purpose ADC which provides state-of-the-art performance at any sampling rate up to 1MHz.  In this video, we will show that it is ADC non-linearity, as opposed to noise, that ultimately limits the measurement accuracy that can be achieved with an ADC.  The combination of speed, versatility __ Linear Technology/Analog Devices App Note, Jesper Steensgaard Staff Scientist-Mixed Signal Oct 1, 2013

20mA LED Ballast    (corrected text) I use this circuit for general use to power white LEDs, like a headset light I use on my desk and a keyboard light for my computer.  I built it into a tiny Radio Shack project box   (270-288) , which y no longer sell.  I put heat-shrink tubing __ Designed by Andrew R. Morris

24-Bit ADC Measures from DC to Daylight DN219 Design Notes___ Linear Technology/Analog Devices

250ksps 16-Bit Micropower ADC offers an Excellent Combination of Size Power & Speed DN294 Design Notes___ Linear Technology/Analog Devices

2-Channel ADC Measures Differential Temperature from Bridge Configured RTDs The LTC2402 is a 2-channel 2.7V to 5.5V micropower 24-bit analog-to-digital converters with an integrated oscillator, 4ppm INL and 0.6ppm RMS noise.  These ultrasmall devices use delta-sigma technology and a new digital filter architecture that settles in a single cycle.  This eliminates the latency found in conventional DS converters __ Linear Technology/Analog Devices App Note, Mar 30th 2010

2-Channel ADC Tags Its Own Output 04/28/94 EDN-Design Ideas Transferring converted data from high-speed DACs directly to system RAM to avoid µP bottlenecks is common.  But, if the ADC serves more than one input, the µP obviously won't be able to select channels during the DMA period.  The circuit in Fig 1 shows a simple way to operate a 1-MHz, 12-bit ADC  (IC1) in DMA mode__ Circuit Design by Fred Hamilton, National Semiconductor, Santa Clara, CA

2-wires control SPI high-speed ADC 11/10/05 EDN-Design Ideas Inverters substitute for an SPI ADC's chip-select line__ Circuit Design by Dan Meeks, Texas Instruments Inc, Austin, TX

4-Bit µPs A/D Converter Decodes Keypads Input 10/13/94 EDN-Design Ideas Fig 1 shows a Mitsubishi M50927-XXXSP/FP 4-bit microcontroller decoding a 4×4 keypad using only four digital I/O lines instead of eight.  Saving four of a 4-bit µC's precious I/O lines couild be significant.4-bit µC's ADC provid__ Circuit Design by Ryoden International  Shanghai Ltd, Shanghai, China

500kHz 6a Monolithic Boost Converter LT1370 DN183 Design Notes___ Linear Technology/Analog Devices

555 Timer as an A/D Converter Measure voltages accurately with a microcontroller using this simple circuit.  Includes sample program for the Parallax Basic Stamp. __ Designed by Bob Blick

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