MAX1082AEUE+ Maxim Integrated Products, MAX1082AEUE+ Datasheet - Page 19

• Manufacturer Part Number: MAX1082AEUE+
• Description: IC ADC 10BIT 400KSPS 16-TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1082AEUE+

• Number Of Bits: 10
• Sampling Rate (per Second): 400k
• Data Interface: MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 533mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2) The MAX1082/MAX1083 ’ s CS pin is driven low by
3) An 8-bit word (1XXXXX11) should be written to the
4) The MAX1082/MAX1083 ’ s SSTRB output is moni-
Figure 12. MAX1082/MAX1083 Reference-Adjust Circuit
Figure 13. Unipolar Transfer Function, Full Scale (FS) = V
+ V
COM
CLKR (TMS320 receive clock) as an active-high
input clock. CLKX and CLKR on the TMS320 are
connected to the MAX1082/MAX1083 ’ s SCLK input.
the TMS320 ’ s XF_ I/O port to enable data to be
clocked into the MAX1082/MAX1083 ’ s DIN pin.
MAX1082/MAX1083 to initiate a conversion and
place the device into normal operating mode. See
Table 3 to select the proper XXXXX bit values for your
specific application.
tored through the TMS320’s FSR input. A falling
edge on the SSTRB output indicates that the con-
version is in progress and data is ready to be
11 . . . 111
11 . . . 110
00 . . . 011
00 . . . 010
11 . . . 101
00 . . . 001
00 . . . 000
, Zero Scale (ZS) = V
100k
OUTPUT CODE
24k
300ksps/400ksps, Single-Supply, 4-Channel,
(COM)
+3.3V
0
Serial 10-Bit ADCs with Internal Reference
1
2
______________________________________________________________________________________
INPUT VOLTAGE (LSB)
3
510k
0.047µF
COM
FULL-SCALE
TRANSITION
12
FS - 3/2LSB
REFADJ
MAX1082
MAX1083
1LSB =
ZS = V
FS = V
FS
COM
REF
1024
V
REF
+ V
REF
COM
5) The TMS320 reads in 1 data bit on each of the next
6) Pull CS high to disable the MAX1082/MAX1083 until
Integral nonlinearity (INL) is the deviation of the values
from a straight line on an actual transfer function. This
straight line can be a best-straight-line fit or a line
drawn between the endpoints of the transfer function,
once offset and gain errors have been nullified. The
static linearity parameters for the MAX1082/MAX1083
are measured using the best straight-line fit method.
Differential nonlinearity (DNL) is the difference between
an actual step width and the ideal value of 1LSB. A
DNL error specification of less than 1LSB guarantees
no missing codes and a monotonic transfer function.
Aperture width (t
to disconnect the hold capacitor from the input circuit
(for instance, to turn off the sampling bridge, and put
the T/H unit in hold mode).
Figure 14. Bipolar Transfer Function, Full Scale (FS) =
V
REF
*V
received from the device.
16 rising edges of SCLK. These data bits represent
the 10 + 2-bit conversion result followed by 4 trailing
bits, which should be ignored.
the next conversion is initiated.
011 . . . 111
011 . . . 110
000 . . . 010
000 . . . 001
000 . . . 000
111 . . . 111
111 . . . 110
111 . . . 101
100 . . . 001
100 . . . 000
COM
/ 2 + V
≤
OUTPUT CODE
V
REF
COM
/ 2
, Zero Scale (ZS) = V
-FS =
1LSB =
- FS
FS = V
ZS = V
AW
-V
COM
REF
2
2
REF
) is the time the T/H circuit requires
1024
V
REF
+ V
+ V
COM
Differential Nonlinearity
COM
INPUT VOLTAGE (LSB)
Integral Nonlinearity
COM*
COM
Aperture Width
Definitions
+FS - 1LSB
19