µP Interface for a Free-Running A/D Allows Asynchronous Reads:  National Semiconductor Application Note   (app note added 2/06)

12 Bit ADC Upgrades µC's Internal 8 Bit ADC:  Maxim Application Notes / 119 / Mar-03  (app note added 6/06)

12 Bit Converter Upgrades µC's :  07/07/94 EDN-Design Ideas / (added 11/05) /  simple circuit in Fig 1 and an accompanying software routine let you easily substitute a multichannel 12-bit ADC for  8-bit ADC internal to  87C752 µC. A single assembly can n implement both  lowand high-performance version of a system. A socket lets you plug in  external ADC when you need it; orwise, you plug in  network of 10 100V resistors. At power-up,  µC executes a routine that looks for  external converter. If  converter is present,  µC uses  external ADC. If  converter is absent,  8-bit ADC takes over.  mC internally handles all conversion results as 12-bit values.... 

12 Bit Sampling A / D Converter Conserves Power:  Maxim Application Notes / 43 / Apr-03  (app note added 6/06)

12-Bit 3msps Sar ADC Solves Pipeline Problems:  DN192  Design Notes (Linear Technology) (app note added 1/06)

12-Bit ADC with Sequencer Simplifies Multiple-Input Applications:  DN274  Design Notes (Linear Technology) (app note added 1/06)

16 Bit ADC Provides 19 Bit Resolution:  02/21/02 EDN Design Ideas  /  (added 1/05)  Many data-acquisition systems require both high accuracy and a fast acquisition rate. se attributes allow  system to detect small data signals and to group more sensor channels into  same system. With more channels,  system can be smaller, less expensive, and less power-consuming. Long-distance optical communications and medical equipment, such as CT scanners, can benefit from... ...

16-Bit 333ksps ADC Achieves 90db Sinad,100db Thd and No Missing Codes:  DN177  Design Notes (Linear Technology) (app note added 1/06)

16-Bit ADC Simplifies Current Measurements:  DN341  Design Notes (Linear Technology) (app note added 1/06)

16-Channel 24-Bit Delta Sigma ADC Provides Small Flexible and Accurate Solutions for Data Acquisition:  DN297  Design Notes (Linear Technology) (app note added 1/06)

16mw Serial/Parallel 14-Bit ADC Samples at 200ksps:  DN180  Design Notes (Linear Technology) (app note added 1/06)

18 Bit ADC uses PC's Serial Port:  09/27/01 EDN Design Ideas  /  (added 1/05)  A PC usually requires a plug-in ADC card to process analog signals. However, with  circuitry in Figure 1, a PC can communicate with an 18-bit ADC through its serial port.  port provides both positive and negative power supplies as well as control signals. IC1 is an 18-bit MAX132 ADC with a serial interface. ...

1-and 2-Channel No Latency Delta Sigma™ 24-Bit ADCs Easily Digitize a Variety of Sensors Part 2:  DN237  Design Notes (Linear Technology) (app note added 1/06)

1-and 2-Channel No Latency Deltasigma™ 24-Bit ADCs Easily Digitize a Variety of Sensors Part 1:  DN236  Design Notes (Linear Technology) (app note added 1/06)

2 Channel ADC Tags Its Own Output:  04/28/94 EDN-Design Ideas / (added 11/05)

20-Bit (1 Ppm) Linear Slope-Integrating A/D Converter:  National Semiconductor Application Note   (app note added 2/06)

24-Bit ADC Measures from DC to Daylight:  DN219  Design Notes (Linear Technology) (app note added 1/06)

250ksps 16-Bit Micropower ADC Offers an Excellent Combination of Size Power and Speed:  DN294  Design Notes (Linear Technology) (app note added 1/06)

27MHz to 67MHz Low-RF Single-Conversion Superhet Receiver:  Melexis Application Note  (app note added 6/06)

4 Bit µP's A/D Converter Decodes Keypad's Inputs:  10/13/94 EDN-Design Ideas / (added 6/06) 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 provides  key to  savings.  µC's output lines, F1 through F4, energize  keypad's column lines one at a time via 74HC4049 buffer/driver. If a user presses a key,  µC's ADC reads an analog voltage coresponding to  row of  pressed key.  resistors that  keypad's keys connect to  µC's ADC determine  voltage that  ADC sees. Table 1 lists se voltages....  

4 Channel 8 Bit Analog-to-Digital Converter for PC:  (circuit added 7/02)

50 Hz/60Hz Rejection on Sigma-Delta ADCs:  AN-611 Analog Devices Application Notes  (app note added 2/06)  Rejection of 50 Hz and 60 Hz interference is a requirement in many industrial settings. This Application Note outlines how  AD7708/AD7718,AD7709,AD7719, AD7782/AD7783 Sigma-Delta ADCs are used for optimal rejection of se frequencies.

555 Timer as an A/D Converter:  Measure voltages accurately with a microcontroller using this simple circuit. Includes sample program for  Parallax Basic Stamp (added 7/03)

A 2.x GHz WiMAX Direct Conversion Transmitter:  AN-826 Analog Devices Application Notes  (app note added 2/06)

A 20-Bit (1 Ppm) Linear Slope-Integrating A/D Converter:  National Semiconductor Application Note   (app note added 2/06)

A 3-Phase Power Meter Based on the ADE7752:  AN-641 Analog Devices Application Notes  (app note added 2/06)

A 500kHz 6a Monolithic Boost Converter (LT1370):  DN183  Design Notes (Linear Technology) (app note added 6/06)

A Comparator Based SlopeADC:  Microchip Application Note Published 14-Apr-03   (app note added 2/06)

A Design and Manufacturing Guide for the Lead Frame Chip Scale Package (LFCSP):  AN-772 Analog Devices Application Notes  (app note added 2/06)

A First Approach to IBIS Models:  AN-715 Analog Devices Application Notes  (app note added 2/06)

A Geophone/Hydrophone Acquisition Reference Design:  AN-566 Analog Devices Application Notes  (app note added 2/06)  The AD1555/AD1556 24-Bit Sigma-Delta ADC Chipset Provides for Direct Acquisition of High Dynamic Range Sensors.

A Low Cost Tamper-Resistant Energy Meter Based on the ADE7761 with Missing Neutral Function:  AN-687 Analog Devices Application Notes  (app note added 2/06)

A Low Cost Watt-Hour Energy Meter Based on the AD7755 (Chinese Version-5/2000):  AN-559 Analog Devices Application Notes  (app note added 2/06)

A Low Cost Watt-Hour Energy Meter Based on the ADE7755 (Russian Version):  AN-559 Analog Devices Application Notes  (app note added 2/06)

A Low Cost Watt-Hour Energy Meter Based on the ADE7755:  AN-559 Analog Devices Application Notes  (app note added 2/06)

A Low Cost Watt-Hour Energy Meter Based on the ADE7757:  AN-679 Analog Devices Application Notes  (app note added 2/06)