Rainbow-electronics MAX1068 Manual de usuario descargar pdf (Pagina 3)

MAX1067/MAX1068

Multichannel, 14-Bit, 200ksps Analog-to-Digital

Converters

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(AV

= DV

= +4.75V to +5.25V, f

SCLK

= 4.8MHz external clock (50% duty cycle), 24 clocks/conversion (200ksps), external V

REF

= +4.096V, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at T

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Acquisition Time t

ACQ

(Note 6) 729 ns

External clock, data transfer and conversion 0.1 4.8

Serial Clock Frequency f

SCLK

External clock, data transfer only 9

MHz

Internal Clock Frequency f

INTCLK

Internal clock 3.2 4.0 MHz

Aperture Delay t

15 ns

Aperture Jitter t

<50 ps

8-bit-wide data-transfer mode 4.17 200.00

16-bit-wide data-transfer mode 3.125 150.000

Internal clock, single conversion, 8-bit-wide

data-transfer mode

Internal clock, single conversion, 16-bit-

wide data-transfer mode

Internal clock, scan mode, 8-bit-wide data-

transfer mode (four conversions)

103

Sample Rate (Note 7) f

External clock, scan mode, 16-bit-wide

data-transfer mode (four conversions)

ksps

Duty Cycle 45 55 %

ANALOG INPUT (AIN_)

Input Range V

AIN

_0V

REF

Input Capacitance C

AIN

_45pF

EXTERNAL REFERENCE

Input Voltage Range V

REF

3.8 AV

AIN

_ = 0 110

SCLK idle 0.1

Input Current I

REF

CS = DV

, SCLK idle 0.1

µA

INTERNAL REFERENCE

Reference Voltage V

REFIN

4.056 4.096 4.136 V

Reference Short-Circuit Current I

REFSC

13 mA

Reference Temperature

Coefficient

±25 ppm/°C

Reference Wake-Up Time t

RWAKE

REF

= 0 5 ms

1 2 3 4 5 6 7 8 ... 29 30

MAX1067/MAX1068 1
Converters 1

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Rainbow-electronics MAX1068 Manual de usuario Pagina 3

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