
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
5
Maxim Integrated
MAX11044/MAX11044B/MAX11045/MAX11045B/
MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = +4.75V to +5.25V, VDVDD = +2.70V to +5.25V, VAGNDS = VAGND = VDGND = 0V, VREFIO = internal reference, CRDC = 4 x
33μF, CREFIO = 0.1μF, CAVDD = 4 x 0.1μF || 10μF, CDVDD = 3 x 0.1μF || 10μF; all digital inputs at DVDD or DGND, unless otherwise
noted, fSAMPLE = 250ksps. TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CS Fall to WR Fall
t3
0ns
WR Low Time
t4
20
ns
CS Rise to WR Rise
t5
0ns
Input Data Setup Time
t6
10
ns
Input Data Hold Time
t7
1ns
CS Fall to RD Fall
t8
0ns
RD Low Time
t9
30
ns
RD Rise to CS Rise
t10
0ns
RD High Time
t11
10
ns
RD Fall to Data Valid
t12
35
ns
RD Rise to Data Hold Time
t13
(Note 7)
5
ns
Note 1:
See the
Definitions section at the end of the data sheet.
Note 2:
Tested with alternating channels modulated at full scale and ground.
Note 3:
See the
Input Range and Protection section for more details.
Note 4:
CLOAD = 30pF on DB0–DB15 and EOC. Inputs (CH0–CH7) alternate between full scale and zero scale. fCONV = 250ksps.
All data is read out.
Note 5:
Defined as the change in positive full scale caused by a ±2% variation in the nominal supply voltage.
Note 6:
It is recommended that RD, WR, and CS are kept high for the quiet time (tQ) and conversion time (tCON).
Note 7:
Guaranteed by design.
INTEGRAL NONLINEARITY vs. CODE
(A-GRADE)
MAX11044
toc01
OUTPUT CODE (DECIMAL)
INL
(LSB)
57344
49152
32768
40960
16384
24576
8192
-1.6
-0.8
-1.2
0
-0.4
0.4
0.8
1.2
1.6
2.0
-2.0 0
65536
VAVDD = 5.25V
VDVDD = 3.3V
fSAMPLE = 250ksps
TA = +25°C
VRDC = 4.096V
64 HITS PER CODE
INTEGRAL NONLINEARITY vs. CODE
(B-GRADE)
MAX11044
toc01a
OUTPUT CODE (DECIMAL)
INL
(LSB)
57344
49152
32768
40960
16384
24576
8192
-2.5
-1.5
-2.0
-1.0
0
-0.5
0.5
1.0
1.5
2.0
2.5
3.0
-3.0 0
65536
VAVDD = 5.25V
VDVDD = 3.3V
fSAMPLE = 250ksps
TA = +25°C
VRDC = 4.096V
64 HITS PER CODE
DIFFERENTIAL NONLINEARITY
vs. CODE (A-GRADE)
MAX11044
toc02
OUTPUT CODE (DECIMAL)
DNL
(LSB)
57344
49152
32768
40960
16384
24576
8192
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0 0
65536
VAVDD = 5.25V
VDVDD = 3.3V
fSAMPLE = 250ksps
TA = +25°C
VRDC = 4.096V
64 HITS PER CODE
Typical Operating Characteristics
(VAVDD = 5V, VDVDD = 3.3V, TA = +25°C, fSAMPLE = 250ksps, internal reference, unless otherwise noted.)