MAX1303BEUP+ Maxim Integrated Products, MAX1303BEUP+ Datasheet - Page 17

• 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 4. Internal Clock-Mode Conversion (Mode 2)
Figure 5. Analog Input Current vs. Input Voltage
TRACK AND HOLD*
ANALOG INPUT
INTCLK**
SSTRB
DOUT
SCLK
DIN
CS
-0.5
-1.0
-1.5
1.5
1.0
0.5
0
S
-6
C2
HOLD
C1
*TRACK AND HOLD TIMING IS CONTROLLED BY INTCLK, AND IS NOT ACCESSIBLE TO THE USER.
**INTCLK IS AN INTERNAL SIGNAL AND IS NOT ACCESSIBLE TO THE USER.
______________________________________________________________________________________
-4
C0
ANALOG INPUT VOLTAGE (V)
8-/4-Channel, ±V
0
BYTE 1
-2
0
0
0
0
2
TRACK
t
ACQ
100ns to 400ns
4
HIGH IMPEDANCE
6
f
INTCLK
≈ 4.5MHz
f
SAMPLE
SAMPLING INSTANT
≈ f
SCLK
/ 24 + f
Figure 6. Simplified Analog Input Circuit
REF
INTCLK
/ 28
*MINIMIZE R
*R
*R
Serial 16-Bit ADCs
Multirange Inputs,
B15
SOURCE
ANALOG
SIGNAL
SOURCE
SOURCE
ANALOG
SIGNAL
SOURCE
B14
SOURCE
B13
IN_+
IN_+
B12
TO AVOID GAIN ERROR AND DISTORTION.
MAX1302
MAX1303
HOLD
BYTE 2
B11
B10
R1
R1
V
V
B9
SJ
SJ
B8
B7
B6
B5
R2
R2
B4
BYTE 3
B3
B2
B1
B0
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