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AD9221/AD9223/AD9220 pdf datas
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格式:rar |
大小:333 |
2008-12-04
YYXIAO
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The AD9221, AD9223, and AD9220 are a generation of high
performance, single supply 12-bit analog-to-digital converters.
Each device exhibits true 12-bit linearity and temperature drift
performance1 as well as 11.5-bit or better ac performance.2 The
AD9221/AD9223/AD9220 share the same interface options,
package, and pinout. Thus, the product family provides an upward
or downward component selection path based on performance,
sample rate and power. The devices differ with respect to their
specified sampling rate, and power consumption, which is reflected
in their dynamic performance over frequency.
The AD9221/AD9223/AD9220 combine a low cost, high speed
CMOS process and a novel architecture to achieve the resolution
and speed of existing hybrid and monolithic implementations at
a fraction of the power consumption and cost. Each device is a
complete, monolithic ADC with an on-chip, high performance,
low noise sample-and-hold amplifier and programmable voltage
reference. An external reference can also be chosen to suit the
dc accuracy and temperature drift requirements of the application.
The devices use a multistage differential pipelined architecture
with digital output error correction logic to provide 12-bit accuracy
at the specified data rates and to guarantee no missing
codes over the full operating temperature range.
The input of the AD9221/AD9223/AD9220 is highly flexible,
allowing for easy interfacing to imaging, communications, medical,
and data-acquisition systems. A truly differential input
structure allows for both single-ended and differential input
interfaces of varying input spans. The sample-and-hold
performance, single supply 12-bit analog-to-digital converters.
Each device exhibits true 12-bit linearity and temperature drift
performance1 as well as 11.5-bit or better ac performance.2 The
AD9221/AD9223/AD9220 share the same interface options,
package, and pinout. Thus, the product family provides an upward
or downward component selection path based on performance,
sample rate and power. The devices differ with respect to their
specified sampling rate, and power consumption, which is reflected
in their dynamic performance over frequency.
The AD9221/AD9223/AD9220 combine a low cost, high speed
CMOS process and a novel architecture to achieve the resolution
and speed of existing hybrid and monolithic implementations at
a fraction of the power consumption and cost. Each device is a
complete, monolithic ADC with an on-chip, high performance,
low noise sample-and-hold amplifier and programmable voltage
reference. An external reference can also be chosen to suit the
dc accuracy and temperature drift requirements of the application.
The devices use a multistage differential pipelined architecture
with digital output error correction logic to provide 12-bit accuracy
at the specified data rates and to guarantee no missing
codes over the full operating temperature range.
The input of the AD9221/AD9223/AD9220 is highly flexible,
allowing for easy interfacing to imaging, communications, medical,
and data-acquisition systems. A truly differential input
structure allows for both single-ended and differential input
interfaces of varying input spans. The sample-and-hold
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