Datasheet
MAX11618–MAX11621/MAX11624/MAX11625
10-Bit, 300ksps ADCs
with FIFO and Internal Reference
_______________________________________________________________________________________ 5
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Externally clocked conversion 208
SCLK Clock Period t
CP
Data I/O 100
ns
SCLK Pulse-Width High t
CH
40 ns
SCLK Pulse-Width Low t
CL
40 ns
SCLK Fall to DOUT Transition t
DOT
C
LOAD
= 30pF 40 ns
CS Rise to DOUT Disable t
DOD
C
LOAD
= 30pF 40 ns
CS Fall to DOUT Enable t
DOE
C
LOAD
= 30pF 40 ns
DIN to SCLK Rise Setup t
DS
40 ns
SCLK Rise to DIN Hold t
DH
0 ns
CS Low to SCLK Setup t
CSS0
40 ns
CS High to SCLK Setup t
CSS1
40 ns
CS High After SCLK Hold t
CSH1
0 ns
CS Low After SCLK Hold t
CSH0
0 4 µs
t
CSPW
CKSEL = 00 40 ns
CNVST Pulse Width Low
CKSEL = 01 1.4 µs
Voltage conversion 7
CS or CNVST Rise to EOC
Low (Note 10)
Reference power-up 65
µs
TIMING CHARACTERISTICS (Figure 1)
(V
DD
= 2.7V to 3.6V (MAX11619/MAX11621/MAX11625); V
DD
= 4.75V to 5.25V (MAX11618/MAX11620/MAX11624),
f
SAMPLE
= 300kHz, f
SCLK
= 4.8MHz (50% duty cycle), V
REF
= 2.5V (MAX11619/MAX11621/MAX11625); V
REF
= 4.096V
(MAX11618/MAX11620/MAX11624), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
Typical Operating Characteristics
(V
DD
= 3V (MAX11619/MAX11621/MAX11625); V
DD
= 5V (MAX11618/MAX11620/MAX11624), f
SCLK
= 4.8MHz, C
LOAD
= 30pF,
T
A
= +25°C, unless otherwise noted.)
Note 10: This time is defined as the number of clock cycles needed for conversion multiplied by the clock period. If the internal refer-
ence needs to be powered up, the total time is additive.
INTEGRAL NONLINEARITY
vs. OUTPUT CODE
MAX11618 toc01
OUTPUT CODE (DECIMAL)
INL (LSB)
768512256
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-0.5
01024
MAX11618/MAX11620/
MAX11624
f
SAMPLE
= 300ksps
INTEGRAL NONLINEARITY
vs. OUTPUT CODE
MAX11618 toc02
OUTPUT CODE (DECIMAL)
INL (LSB)
768512256
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-0.5
0 1024
MAX11619/MAX11621/
MAX11625
f
SAMPLE
= 300ksps
DIFFERENTIAL NONLINEARITY
vs. OUTPUT CODE
MAX11618 toc03
OUTPUT CODE (DECIMAL)
DNL (LSB)
768512256
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-0.5
01024
MAX11618/MAX11620/
MAX11624
f
SAMPLE
= 300ksps