MAX1303BEUP+ Maxim Integrated Products, MAX1303BEUP+ Datasheet - Page 18

• 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

The MAX1302/MAX1303 differential common-mode
range (V
obtain valid conversion results. The differential com-
mon-mode range is defined as:
8-/4-Channel, ±V
Serial 16-Bit ADCs
Table 3. Input Data Word Formats
Table 4. Channel Selection in Single-Ended Mode
Table 5. Channel Selection in True-Differential Mode (DIF/SGL = 1)
18
Conversion-Start Byte
(Tables 4 and 5)
Analog-Input Configuration Byte
(Table 2)
Mode-Control Byte
(Table 7)
C2
C2
CHANNEL-SELECT BIT
CHANNEL-SELECT BIT
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
______________________________________________________________________________________
CMDR
OPERATION
Differential Common-Mode Range
V
C1
C1
CMDR
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
) must remain within -4.75V to +5.5V to
=
C0
C0
(
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
CH
_
+
)
2
CH0
CH0
+
+
+
(
CH
(START)
D7
_
1
1
1
REF
−
)
CH1
CH1
+
-
M2
D6
C2
C2
Multirange Inputs,
CH2
CH2
+
+
M1
D5
C1
C1
In addition to the common-mode input voltage limita-
tions, each individual analog input must be limited to
±6V with respect to AGND1.
The range-select bits R[2:0] in the analog input config-
uration bytes determine the full-scale range for the cor-
responding channel (Tables 2 and 6). Figures 9, 10,
and 11 show the valid analog input voltage ranges for
the MAX1302/MAX1303 when operating with FSR =
V
CH3
CH3
REF
+
-
/2, FSR = V
(DIF/SGL = 0)
RESERVED
RESERVED
RESERVED
RESERVED
CHANNEL
CHANNEL
M0
D4
C0
C0
DATA BIT
CH4
CH4
+
+
DIF/SGL
REF
D3
0
1
, and FSR = 2 x V
CH5
CH5
+
-
D2
R2
0
0
CH6
CH6
+
+
REF
D1
R1
CH7
CH7
0
0
+
-
, respectively.
AGND1
AGND1
D0
R0
0
0
-
-
-
-
-
-
-
-