MAX1303BEUP+ Maxim Integrated Products, MAX1303BEUP+ Datasheet - Page 27

• Manufacturer Part Number: MAX1303BEUP+
• Description: ADC Single SAR 115KSPS 16-Bit Serial 20-Pin TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1303BEUP+

• Package: 20TSSOP
• Resolution: 16 Bit
• Sampling Rate: 115 KSPS
• Architecture: SAR
• Number Of Adcs: 1
• Number Of Analog Inputs: 4|2
• Digital Interface Type: Serial (SPI, QSPI, Microwire)
• Input Type: Voltage
• Signal To Noise Ratio: 90(Typ) dB
• Polarity Of Input Voltage: Unipolar|Bipolar

Figure 19. 4–20mA Application
Figure 20. Bridge Application
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 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.
Differential Nonlinearity (DNL)
______________________________________________________________________________________
8-/4-Channel, ±V
4–20mA INPUT
4–20mA INPUT
BRIDGE
200Ω
200Ω
Transition Noise
DIFFERENTIAL
LOW-OFFSET
AMPLIFIER
CH0
CH1
REF
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.
CH0
CH8
REF
MAX1302
MAX1303
MAX1302
Serial 16-Bit ADCs
Multirange Inputs,
Channel-to-Channel Isolation
µP
µC
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