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AD7716,pdf datasheet (22-Bit D
消耗积分:3 |
格式:rar |
大小:510 |
2009-09-10
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The AD7716 is a signal processing block for data acquisition
systems. It is capable of processing four channels with bandwidths
of up to 584 Hz. Resolution is 22 bits and the usable
dynamic range varies from 111 dB with an input bandwidth of
36.5 Hz to 99 dB with an input bandwidth of 584 Hz.
The device consists of four separate A/D converter channels that
are implemented using sigma-delta technology. Sigma-delta
ADCs include on-chip digital filtering and, thus, the system
filtering requirements are eased.
Three address pins program the device address. This allows a
data acquisition system with up to 32 channels to be set up in a
simple fashion. The output word from the device contains 32
bits of data. One bit is determined by the state of the DIN1 input
and may be used, for example, in an ECG system with an
external pacemaker detect circuit to indicate that the output
word is invalid because of the presence of a pacemaker pulse.
systems. It is capable of processing four channels with bandwidths
of up to 584 Hz. Resolution is 22 bits and the usable
dynamic range varies from 111 dB with an input bandwidth of
36.5 Hz to 99 dB with an input bandwidth of 584 Hz.
The device consists of four separate A/D converter channels that
are implemented using sigma-delta technology. Sigma-delta
ADCs include on-chip digital filtering and, thus, the system
filtering requirements are eased.
Three address pins program the device address. This allows a
data acquisition system with up to 32 channels to be set up in a
simple fashion. The output word from the device contains 32
bits of data. One bit is determined by the state of the DIN1 input
and may be used, for example, in an ECG system with an
external pacemaker detect circuit to indicate that the output
word is invalid because of the presence of a pacemaker pulse.
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