MAX1300(2006) View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MAX1300
(Rev.:2006)

8-/4-Channel, ±12V Multirange Inputs, Serial 16-Bit ADCs

Maxim Integrated 

8-/4-Channel, ±12V Multirange Inputs,

Serial 16-Bit ADCs

4–20mA INPUT

250Ω

4–20mA INPUT

250Ω

CH0

µC

MAX1300

CH8

Figure 19. 4–20mA Application

LOW-OFFSET

CH0

DIFFERENTIAL

µP

AMPLIFIER

CH1

MAX1300

MAX1301

REF

BRIDGE

Figure 20. Bridge Application

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-to-

channel 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 chan-

nel output is used to determine the ratio of the magni-

tudes 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 channel-

to-channel isolation.

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