What
is A/D Converter?
A/D Converter is
Electronic integrated circuit which transforms signal from analog (continuous)
to digital (discrete) form. Analog signals are directly
measurable quantities and Digital signals contain only two states and for digital
computer, we refer to binary states 0 or 1.
An Analog to Digital Converter is a very useful feature that converts
an analog voltage on a pin to a digital number. The input to an analog to
digital converter (A/D) consists of a voltage that varies among a theoretically
infinite number of values. After converting from the analog world to the
digital world we can begin to use electronics to interface to the analog world
around us. Analog Devices A/D converters feature a variety of breakthrough
capabilities enabling new system architectures that meet customer needs. Low
powers, low cost and compact design, are required by today’s systems.
Amsyx offers
the industry’s largest range of A/D converter products that design engineers
depend on for reliable performance in the harshest environments, both on Earth
and in space. If you are looking for high quality and improving efficiency reliability
while lowering cost and consider using the industry’s number one A/D converter
products from Analog Devices.
Why
A/D Converter is needed?
Microprocessors can
only perform complex processing on digitized signals. When
signals are in digital form they are less susceptible to the deleterious
effects of additive noise. A/D Converter provides a link
between the analog world of transducers and the digital world of signal
processing and data handling.
Application
of ADC: - A/D Converter are used virtually everywhere where an
analog signal has to be processed, stored and transported in digital form. Some
examples of A/D Converter usage are digital volt meters, thermocouples, cell
phone, and digital oscilloscope. Micro controllers commonly use 8, 10, 12 and 16
bit A/D Converters,
When an A/D Converter chip returns 16 bits, it is
probably better than a 12-bit A/D converter, but not always. The simple
fact that a converter returns 16-bits says little about the quality of those
bits. It is hard to simply state "the resolution" of a given device.
What we like to do, is provide actual measured
data that tells you the resolution of a device including typical inherent
noise.16-bit A/D converter designed for digitizing high frequency and wide
dynamic range signals up to input frequencies of 700MHz. The input range of the
A/D Converter can be optimized with the PGA front end.