
MAX1084/MAX1085
400ksps/300ksps, Single-Supply, Low-Power,
Serial 10-Bit ADCs with Internal Reference
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5
TIMING CHARACTERISTICS—MAX1084
(Figures 1, 2, 8, 9; VDD = +4.5V to +5.5V, TA = TMIN to TMAX, unless otherwise noted.)
TIMING CHARACTERISTICS—MAX1085
(Figures 1, 2, 8, 9; VDD = +2.7V to +3.6V, TA = TMIN to TMAX, unless otherwise noted.)
CLOAD = 20pF
CONDITIONS
ns
100
tCSW
CS Pulse-Width High
ns
62
tCL
SCLK Pulse-Width Low
ns
62
tCH
ns
156
tCP
SCLK Period
SCLK Pulse-Width High
ns
65
tDOE
CS Fall to DOUT Enable
ns
10
65
tDOD
CS Rise to DOUT Disable
ns
80
tDOV
SCLK Rise to DOUT Valid
ns
10
tDOH
SCLK Rise to DOUT Hold
ns
35
tCSS
CS Fall to SCLK Rise Setup
ns
0
tCSH
SCLK Rise to CS Rise Hold
ns
35
tCSO
SCLK Rise to CS Fall Ignore
ns
35
tCS1
CS Rise to SCLK Rise Ignore
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
CLOAD = 20pF
CONDITIONS
ns
83
tCL
SCLK Pulse-Width Low
ns
83
tCH
ns
208
tCP
SCLK Period
SCLK Pulse-Width High
ns
13
85
tDOD
CS Rise to DOUT Disable
ns
100
tDOV
SCLK Rise to DOUT Valid
ns
13
tDOH
SCLK Rise to DOUT Hold
ns
45
tCSS
CS Fall to SCLK Rise Setup
ns
0
tCSH
SCLK Rise to CS Rise Hold
ns
45
tCSO
SCLK Rise to CS Fall Ignore
ns
45
tCS1
CS Rise to SCLK Rise Ignore
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
Note 1: Tested at VDD = VDD,MIN.
Note 2: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range has
been calibrated.
Note 3: Internal reference, offset, and reference errors nulled.
Note 4: Conversion time is defined as the number of clock cycles multiplied by the clock period; clock has 50% duty cycle.
Note 5: External load should not change during conversion for specified accuracy. Guaranteed specification limit of 2mV/mA due to
production test limitation.
Note 6: Electrical characteristics are guaranteed from VDD,MIN to VDD,MAX. For operations beyond this range, see Typical Operating
Characteristics.
Note 7: MAX1084 tested with 20pF on DOUT and fSCLK = 6.4MHz, 0 to 5V. MAX1085 tested with same loads, fSCLK = 4.8MHz, 0 to
3V. DOUT = full scale.
CLOAD = 20pF
ns
85
tDOE
CS Fall to DOUT Enable
CLOAD = 20pF
ns
100
tCSW
CS Pulse-Width High