Datasheet

Differential Nonlinearity (DNL)
DNL is the difference between an actual step width and
the ideal value of 1 LSB. A DNL error specification of
greater than -1 LSB guarantees no missing codes and a
monotonic transfer function.
Transition Noise
Transition noise is the amount of noise that appears at a
code transition on the ADC transfer function. Conversions
performed with the analog input right at the code transi-
tion can result in code flickering in the LSBs.
Channel-to-Channel Isolation
Channel-to-channel isolation indicates how well each
analog input is isolated from the others. The channel-
tochannel isolation for these devices is measured by
applying a near full-scale magnitude 5kHz sine wave
to the selected analog input channel while applying an
equal magnitude sine wave of a different frequency to all
unselected channels. An FFT of the selected channel out-
put is used to determine the ratio of the magnitudes of the
signal applied to the unselected channels and the 5kHz
signal applied to the selected analog input channel. This
ratio is reported, in dB, as channelto-channel isolation.
Figure 19. 4–20mA Application
Figure 20. Bridge Application
MAX1300
250Ω
4–20mA INPUT
250Ω
4–20mA INPUT
CH0
CH8
µC
MAX1300
MAX1301
CH0
REF
µP
CH1
LOW-OFFSET
DIFFERENTIAL
AMPLIFIER
BRIDGE
MAX1300/MAX1301 8- and 4-Channel, ±3 x V
REF
Multirange Inputs,
Serial 16-Bit ADCs
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