MAX11626 Ver la hoja de datos (PDF) - Maxim Integrated

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MAX11626

12-Bit, 300ksps ADCs with FIFO and Internal Reference

Maxim Integrated 

12-Bit, 300ksps ADCs

with FIFO and Internal Reference

ELECTRICAL CHARACTERISTICS (continued)

(VDD = +2.7V to +3.6V (MAX11627/MAX11629/MAX11633); VDD = +4.75V to +5.25V (MAX11626/MAX11628/MAX11632), fSAMPLE =

300kHz, fSCLK = 4.8MHz (50% duty cycle), VREF = 2.5V (MAX11627//MAX11629/MAX11633); VREF = 4.096V (MAX11626/MAX11628/

MAX11632), TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

CONVERSION RATE

Power-Up Time

External reference

tPU

Internal reference (Note 3)

0.8

µs

65

Acquisition Time

tACQ

0.6

µs

Conversion Time

tCONV

Internally clocked

Externally clocked (Note 4)

3.5

µs

2.7

External Clock Frequency

fSCLK

Externally clocked conversion

Data I/O

0.1

4.8

MHz

10

Aperture Delay

30

ns

Aperture Jitter

< 50

ps

ANALOG INPUT

Input Voltage Range

Input Leakage Current

Input Capacitance

Unipolar

VIN = VDD

During acquisition time (Note 5)

0

VREF

V

±0.01 ±1

µA

24

pF

INTERNAL REFERENCE

REF Output Voltage

MAX11626/MAX11628/MAX11632

MAX11627/MAX11629/MAX11633

4.024 4.096 4.168

V

2.48 2.50 2.52

REF Temperature Coefficient

TCREF

MAX11626/MAX11628/MAX11632

MAX11627/MAX11629/MAX11633

±20

ppm/°C

±30

Output Resistance

6.5

k

REF Output Noise

200

µVRMS

REF Power-Supply Rejection

PSRR

-70

dB

EXTERNAL REFERENCE INPUT

REF Input Voltage Range

VREF

1.0

VDD + 50mV V

REF Input Current

VREF = 2.5V (MAX11627/MAX11629/

MAX11633); VREF = 4.096V

(MAX11626/MAX11628/MAX11632),

IREF

fSAMPLE = 300ksps

VREF = 2.5V (MAX11627/MAX11629/

MAX11633); VREF = 4.096V

(MAX11626/MAX11628/MAX11632),

fSAMPLE = 0

40

100

µA

±0.1 ±5

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