12-Bit Serial-Output Temperature Sensors

with 5-Channel ADC

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5

TIMING CHARACTERISTICS

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

SCLK Frequency

2.5

MHz

SCLK Pulse Width Low

200

ns

SCLK Pulse Width High

200

ns

CS Low to SCLK High

100

ns

SCLK High to CS Setup

100

ns

CS Pulse Width

100

ns

SCLK High to CS Low Setup

50

ns

SCLK High to CS High Setup

100

ns

DIN Setup to SCLK High Time

100

ns

DIN Hold Time

0ns

SCLK Fall to Output Data Valid

150

ns

CS Fall to Output Enable

150

ns

CS Rise to Output Disable

50

ns

SSTRB Rise to SCLK Rise

0ns

SCLK Fall to SSTRB Fall

200

ns

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: Conversion time is defined as the number of clock cycles (64 for voltage measurements, 125 for temperature measure-

ments) multiplied by the internal clock period.

Note 4: Individual analog input voltages cannot extend beyond the power-supply rails.

Note 5: Input resistance is typically 250M

Ω; 5µA limit reflects limitations in production testing.

Note 6: Specifications for full-on status assume continuous conversions. Power modes are software selected (Table 4).

Note 8: External load should not change during conversions for specified accuracy.

Note 9: Excludes noise and self-heating effects. Output error for MAX129_C guaranteed by design.

Note 10: External temperature sensing over -40°C to +85°C range, device at +25°C. Guaranteed by design.