Rainbow-electronics MAX1243 Manual de usuario descargar pdf (Pagina 4)

MAX1242/MAX1243

+2.7V to +5.25V, Low-Power, 10-Bit

Serial ADCs in SO-8

4 _______________________________________________________________________________________

TIMING CHARACTERISTICS

= +2.7V to +5.25V, circuit of Figure 9, T

= T

MIN

to T

MAX

, unless otherwise noted.)

Note 1: Tested at V

= +2.7V.

Note 2: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range and

offset have been calibrated.

Note 3: Offset nulled.

Note 4: Sample tested to 0.1% AQL.

Note 5: External load should not change during conversion for specified accuracy.

Note 6: Guaranteed by design. Not subject to production testing.

Note 7: Measured as [V

(min)

) - V

(max)

)].

Note 8: To guarantee acquisition time, t

ACQ

is the maximum time the device takes to acquire the signal, and is also the minimum

time needed for the signal to be acquired.

DOUT DOUT

DGND

LOAD

= 50pF C

LOAD

= 50pF

DGND

+2.7V

b) High-Z to V

and V

to V

a) High-Z to V

and V

to V

DOUT

DGND

LOAD

= 50pF C

LOAD

= 50pF

DGND

+2.7V

b) V

to High-Za) V

to High-Z

Figure 1. Load Circuits for DOUT Enable Time

Figure 2. Load Circuits for DOUT Disable Time

MAX124_ _M

MAX124_ _C/E

Figure 1, C

LOAD

= 50pF

Figure 1,

LOAD

= 50pF

CS = V

(Note 8)

Figure 2, C

LOAD

= 50pF

CONDITIONS

ns240t

CS Fall to Output Enable

20 200

µs1.5t

ACQ

Acquisition Time

SCLK Fall to Output Data Valid

ns240t

CS Pulse Width

ns0t

STR

DOUT Rise to SCLK Rise (Note 6)

ns50t

CS0

SCLK Low to CS Fall Setup Time

ns240t

CS Rise to Output Disable

MHz0 2.1f

SCLK

SCLK Clock Frequency

ns200t

SCLK Pulse Width High

ns200t

SCLK Pulse Width Low

UNITSMIN TYP MAX

SYMBOLPARAMETER

20 240

1 2 3 4 5 6 7 8 9 10 11 12

MAX1242/MAX1243 1
Serial ADCs in SO-8 1

Comentarios a estos manuales

Sin comentarios

Rainbow-electronics MAX1243 Manual de usuario Pagina 4

Comentarios a estos manuales

Relacionado con productos y manuales para Sensores Rainbow-electronics MAX1243