MAX11120–MAX11128
1Msps, Low-Power, Serial 12-/10-/8-Bit,
4-/8-/16-Channel ADCs
ELECTRICAL CHARACTERISTICS (MAX11121/MAX11124/MAX11127)
(V
= 2.35V to 3.6V, V
= 1.5V to 3.6V, f
= 1Msps, f
= 16MHz, 50% duty cycle, V
= V , T = -40NC to +125NC,
DD
OVDD
SAMPLE
SCLK
REF+ DD A
unless otherwise noted. Typical values are at T = +25NC.) (Note 2)
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
TIMING CHARACTERISTICS (Figure 1) (Note 11)
SCLK Clock Period
SCLK Duty Cycle
t
Externally clocked conversion
62.4
40
ns
%
CP
t
60
CH
V
V
= 1.5V to 2.35V
= 2.35V to 3.6V
4
4
16.5
15
C
10pF
=
OVDD
LOAD
SCLK Fall to DOUT Transition
t
ns
DOT
OVDD
16th SCLK Fall to DOUT Disable
14th SCLK Fall to DOUT Disable
SCLK Fall to DOUT Enable
DIN to SCLK Rise Setup
SCLK Rise to DIN Hold
t
C
C
C
= 10pF, channel ID on
= 10pF, channel ID off
= 10pF
15
16
14
ns
ns
ns
ns
ns
ns
ns
ns
DOD
LOAD
LOAD
LOAD
t
DOE
t
4
1
4
1
5
DS
DH
t
t
CS Fall to SCLK Fall Setup
SCLK Fall to CS Fall Hold
CNVST Pulse Width
CSS
CSH
t
t
See Figure 6
CSW
CS or CNVST Rise to EOC Low
(Note 8)
t
See Figure 7, f
= 1Msps
5.3
6.2
Fs
CNV_INT
SAMPLE
t
5
ns
CS Pulse Width
CSBW
ELECTRICAL CHARACTERISTICS (MAX11120/MAX11123/MAX11126)
(V
= 2.35V to 3.6V, V
= 1.5V to 3.6V, f
= 1Msps, f
= 16MHz, 50% duty cycle, V
= V , T = -40NC to +125NC,
DD
OVDD
SAMPLE
SCLK
REF+ DD A
unless otherwise noted. Typical values are at T = +25NC.) (Note 2)
A
PARAMETER
DC ACCURACY (Notes 3 and 4)
Resolution
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
RES
INL
8 bit
8
Bits
LSB
LSB
LSB
LSB
Integral Nonlinearity
Differential Nonlinearity
Offset Error
0.02
0.02
0.5
0.15
0.15
0.7
DNL
No missing codes
(Note 5)
Gain Error
-0.03
0.3
Offset Error Temperature
Coefficient
OE
GE
2
0.8
ppm/NC
ppm/NC
LSB
TC
TC
Gain Temperature Coefficient
Channel-to-Channel Offset
Matching
0.5
Line Rejection
PSR
(Note 6)
+0.03
0.1
LSB/V
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8
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
