MAX1033BEUP/GG8 Maxim Integrated, MAX1033BEUP/GG8 Datasheet - Page 16

• Manufacturer Part Number: MAX1033BEUP/GG8
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX1033BEUP/GG8

• Number Of Channels: 4/2
• Architecture: SAR
• Conversion Rate: 115 KSPs
• Resolution: 14 bit
• Input Type: Single-Ended/Differential
• Snr: 85 dB
• Interface Type: SPI
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Power Dissipation: 879 mW
• Number Of Converters: 1
• Voltage Reference: 4.096 V

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
Multirange Inputs, Serial 14-Bit ADCs
Figure 3. External Acquisition-Mode Conversion (Mode 1)
16
______________________________________________________________________________________
INTCLK**
SSTRB
DOUT
TRACK AND HOLD*
SCLK
DIN
CS
ANALOG INPUT
***DIN BYTES 2 TO 4 MUST BE DRIVEN TO LOGIC 0 TO OBTAIN A VALID CONVERSION.
**INTCLK IS AN INTERNAL SIGNAL AND IS NOT ACCESSIBLE TO THE USER.
*TRACK AND HOLD TIMING IS CONTROLLED BY SCLK.
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
/ 32 + f
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 MAX1032/MAX1033 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 MAX1032/MAX1033 externally.
INTCLK
IMPEDANCE
/ 17
HIGH
B13
B12
B11
HOLD
B10
BYTE 3
B9
B8
B7
B6
B5
B4
B3
B2
BYTE 4
B1
B0
X
X