Datasheet

MAX1026/MAX1028/MAX1030
10-Bit 300ksps ADCs with FIFO,
Temp Sensor, Internal Reference
_______________________________________________________________________________________ 5
Note 10: This time is defined as the number of clock cycles needed for conversion multiplied by the clock period. If the internal
reference needs to be powered up, the total time is additive. The internal reference is always used for temperature mea
surements.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Externally clocked conversion 208
SCLK Clock Period t
CP
Data I/O 100
ns
SCLK Duty Cycle t
CH
40 60 %
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
0ns
C S Fal l to S C LK Ri se S etup Ti m et
CSS0
40 ns
CS Fall to SCLK Rise Hold Time t
CSH0
0ns
CS Rise to SCLK Rise Hold Time t
CSH
0ns
CS Rise to SCLK Rise Setup Time t
CSS1
0ns
t
CSW
CKSEL = 00, CKSEL = 01 (temp sense) 40 ns
CNVST Pulse Width
CKSEL = 01 (voltage conversion) 1.4 μs
t
T S
Temp sense 55
Voltage conversion 7
CS or CNVST Rise to EOC
Low (Note 10)
t
R P
Reference power-up 65
μs
TIMING CHARACTERISTICS (Figure 1)
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0 256 512 768 1024
INTEGRAL NONLINEARITY
vs. OUTPUT CODE
MAX1026/28/30 toc01
OUTPUT CODE
INTEGRAL NONLINEARITY (LSB)
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0 256 512 768 1024
DIFFERENTIAL NONLINEARITY
vs. OUTPUT CODE
MAX1026/28/30 toc02
OUTPUT CODE
DIFFERENTIAL NONLINEARITY (LSB)
SINAD vs. FREQUENCY
MAX1026/28/30 toc03
FREQUENCY (kHz)
SINAD AMPLITUDE (dB)
100101
10
20
30
40
50
60
70
80
90
100
0
0.1 1000
Typical Operating Characteristics
(V
DD
= +5V, V
REF
= +4.096V, f
SCLK
= 4.8MHz, C
LOAD
= 30pF, T
A
= +25°C, unless otherwise noted.)