True 18-Bit DAC in
Hybrid Package Has Small Size, Low Cost - File contains
several designs, please scroll to find this circuit. . . . [Analog Devices-Analog Dialogue by Greenwald, Jeffrey
and Sheppard, Bill]
Twin DAC's Produce True Bipolar Operation - 08/18/94 EDN Design Idea 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. . . . [by
Ravindranathan, Naval Physical and Oceanographic Laboratory]
Two DAC Circuit Adds &
Subtracts - 09/01/98 EDN Design Idea (File has many
circuits, scroll down) A typical way to add two binary words and provide an analog output is to use several
digital ICs that drive a DAC. The circuit in Figure 1eliminates the use of several digital-IC packages a. . .
[by V Manoharan, Naval Physical and Oceanographic Laboratory, Kochi, India]
Two-Chip,
Voltage-Controlled Amplifier & Video Switch - AN-213
Analog Devices App Note. . .
Unipolar, Precision DC
Digital-to-Analog Conversion Using the AD5426/AD5432/AD5443 8-Bit to12-Bit DACs
- This output voltage change is superimposed on the desired change in output
between the two codes and gives rise to a differential linearity error that, if large enough, could cause the DAC
to be nonmonotonic. In general, the input offset voltage should be a fraction of an LSB to ensure monotonic
behavior when stepping through codes. . . [Analog Devices-Circuits from the Lab]
Unipolar, Precision DC
Digital-to-Analog Conversion using the AD5450/AD5451/AD5452/AD5453 8-/10-/12-/14-Bit DACs
- A change in this noise gain between two adjacent digital codes produces a
step change in the output voltage due to the amplifier’s input offset voltage. This output voltage change is
superimposed on the desired change in output between the two codes and gives rise to a differential linearity
error, which, if large enough, may cause the DAC to be nonmonotonic. In general, the input offset voltage should
be a fraction of an LSB to ensure monotonic behavior when stepping through codes. , Relative accuracy or endpoint
nonlinearity is one of the most widely used techniques in determining the accuracy perform-ance of a DAC circuit.
. . [Analog Devices-Circuits from the Lab]
USB Based Temperature
Monitor Using the ADuC7061 Precision Analog Microcontroller and an External RTD
- The ADuC7061 is connected to a 100 Ω RTD. , In the source code, an ADC
sampling rate of 100 Hz is chosen. When the ADC input PGA is configured for a gain of 32, the noise free code
resolution of the ADuC7061 is greater than 18 bits. , Circuit Function and Benefits, The circuit shown in Figure
1 is powered entirely from the USB interface. ARM7TDMI® core: The powerful 16-/32-bit ARM7 core with integrated
32 kB flash and SRAM memory runs the user code that configures and controls the ADC, processes the ADC
conversions from the RTD, and controls the communications over the UART/USB interface. . . [Analog
Devices-Circuits from the Lab]
Use a DAC to
vary LVDT excitation - 10/02/03 EDN Design Idea 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
result. . . [by Anthony Di Tommaso and Ljubisa Milojevic, ABB Inc, Natrona Heights, PA]
Using the
AD1836 & AD1953 for a 4-In/9-Out Analog System with DSP -
AN-620 Analog Devices App Note. . .
Using the AD7328
8-Channel ADC in Applications with Single-Ended Industrial-Level Signals
- Using the AD7328 8-Channel ADC in Applications with Single-Ended
Industrial-Level Signals. CN0047. CN0047 Bullet text, This circuit is designed to optimize the performance of the
AD7328 bipolar input, 8-channel, 12-bit plus sign ADC. The AD7328 can . . . [Analog Devices-Circuits from the
Lab]
Using the
AD9708/AD9760/AD9701/AD9764-EB Evaluation Board - AN-420
Analog Devices App Note. . .
Using the
AD9709, AD9763, AD9765, AD9767 Dual DAC Evaluation Board -
AN-555 Analog Devices App Note. . .
Variable Gain Control Produces Pure Sine Wave - 10/27/94 EDN Design Idea 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.
. . . [by Barry Harvey, Elantec Corp, Milpitas, CA]
Versatile Programmable Amplifiers using Digital Potentiometers with Nonvolatile
Memory - AN-579 Analog Devices App Note. . .
Video Formats
& Required Load Terminations - AN-205 Analog Devices App
Note. . .
Video RAM-DACs
Offer Unprecedented Resolution, True-Color Screen Images -
Analog Devices-Analog Dialogue. . . [by Slattery, Bill]
Video-Standard Selection Circuit for the AD722 using Low Cost Crystals - AN-412 Analog Devices App Note. . .
Voltage
Adjustment Applications of the DAC-8800 TrimDAC®, an Octal, 8-Bit D/A Converter - AN-142 Analog Devices App Note. . .
Ways of Using the
AD7520 - 10 bit multiplying DAC - Go to page 22 for this
app brief. . . . [Analog Devices-Analog Dialogue by Whitmore, Jerry]
Zero-Power A/D Converter Uses Printer Port - 07/06/95 EDN Design Idea 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[. . . [by Dhananjay Gadre, IUCAA Instrumentation Lab, Pune, India]
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