MAX1301BEUP+CAL Maxim Integrated, MAX1301BEUP+CAL Datasheet - Page 16

• Manufacturer Part Number: MAX1301BEUP+CAL
• Description: Analog to Digital Converters - ADC Intel R2 Customer special for MAX1301BEUP+
• Manufacturer: Maxim Integrated

Specifications of MAX1301BEUP+CAL

• Number Of Channels: 4/2
• Architecture: SAR
• Conversion Rate: 130 KSPs
• Input Type: Single-Ended/Differential
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Power Dissipation: 879 mW
• Number Of Converters: 1

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
±16.5V fault tolerant. The analog input fault protection
is active whether the device is unpowered or powered.
8- and 4-Channel, ±3 x V
Serial 16-Bit ADCs
Figure 3. External Acquisition-Mode Conversion (Mode 1)
16
INTCLK**
SSTRB
TRACK AND HOLD*
DOUT
SCLK
______________________________________________________________________________________
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
TRACK
t
ACQ
BYTE 2
SAMPLING INSTANT
f
100ns to 400ns
SAMPLE
f
INTCLK
≈ f
SCLK
REF
≈ 4.5MHz
Any voltage beyond FSR, but within the ±16.5V fault-
tolerant range, applied to an analog input results in a
full-scale output voltage for that channel.
Clamping diodes with breakdown thresholds in excess
of 16.5V protect the MAX1300/MAX1301 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 tran-
sients, protect the MAX1300/MAX1301 externally.
/ 32 + f
INTCLK
HIGH IMPEDANCE
/ 17
Multirange Inputs,
B15
B14
B13
HOLD
B12
BYTE 3
B11
B10
B9
B8
B7
B6
B5
B4
BYTE 4
B3
B2
B1
B0