MAX1302AEUG+ Maxim Integrated, MAX1302AEUG+ Datasheet - Page 16

• Manufacturer Part Number: MAX1302AEUG+
• Description: Analog to Digital Converters - ADC 16Bit, 8Ch, 4.096V Multi-In Serial ADC
• Manufacturer: Maxim Integrated

Specifications of MAX1302AEUG+

• Rohs: yes
• Number Of Channels: 8/4
• Architecture: SAR
• Conversion Rate: 115 kSPs
• Resolution: 16 bit
• Input Type: Single-Ended/Differential
• Snr: 90 dB
• Interface Type: SPI
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-24
• Maximum Power Dissipation: 1111.1 mW
• Number Of Converters: 1
• Voltage Reference: 4.096 V

8-Channel, ±V
Serial 16-Bit ADC
Figure 8 illustrates the software-selectable differential
analog input voltage range that produces a valid digital
output. Each analog input differential pair can be inde-
pendently programmed to one of three differential input
ranges by setting the R[2:0] control bits with DIF/SGL = 1.
Regardless of the specified input voltage range and
whether the channel is selected, each analog input is
±6V fault tolerant. The analog input fault protection is
active whether the device is unpowered or powered.
Figure 3. External Acquisition-Mode Conversion (Mode 1)
16
INTCLK**
SSTRB
TRACK AND HOLD*
SCLK
DOUT
______________________________________________________________________________________
DIN
CS
ANALOG INPUT
*TRACK AND HOLD TIMING IS CONTROLLED BY SCLK.
**INTCLK IS AN INTERNAL SIGNAL AND IS NOT ACCESSIBLE TO THE USER.
S
HOLD
C2
C1
C0
0
BYTE 1
0
0
0
REF
TRACK
t
ACQ
BYTE 2
Multirange Inputs,
SAMPLING INSTANT
f
100ns to 400ns
SAMPLE
f
INTCLK
≈ f
SCLK
≈ 4.5MHz
Any voltage beyond FSR, but within the ±6V fault-toler-
ant range, applied to an analog input results in a full-
scale output voltage for that channel.
Clamping diodes with breakdown thresholds in excess
of 6V protect the MAX1302 analog inputs during ESD
and other transient events (Figure 6). The clamping
diodes do not conduct during normal device operation,
nor do they limit the current during such transients.
When operating in an environment with the potential for
high-energy voltage and/or current transients, protect
the MAX1302 externally.
/ 32 + f
HIGH IMPEDANCE
INTCLK
/ 17
B15
B14
B13
HOLD
B12
BYTE 3
B11
B10
B9
B8
B7
B6
B5
B4
BYTE 4
B3
B2
B1
B0