Rainbow-electronics MAX11043 Manual de usuario descargar pdf (Pagina 6)

MAX11043

4-Channel, 16-Bit, Simultaneous-Sampling ADCs

with PGA, Filter, and 8-/12-Bit Dual-Stage DAC

6 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

((V

AVDD

= +3.0V to +3.6V, V

DVDD

= +3.0V, C

DVREG

= 10µF, V

AGND

= V

DGND

= 0, common-mode input voltage = AVDD/2, V

REFBP

REFA

= V

REFB

= V

REFC

= V

REFD

= +2.5V (external reference), V

REFDAC

= V

REFDACH

= +1.25V (external reference), V

REFDACL

= 0,

REFBP

= C

REFA

= C

REFB

= C

REFC

= C

REFD

= C

REFDAC

= 1µF, f

SCLK

= 38.4MHz, f

EXCLK

= 38.4MHz (external clock applied to

OSCIN), clock divider set to 4, SHDN = DACSTEP = UP/DWN = DGND, CONVRUN = DVDD, all analog inputs driven directly through

a series 150Ω/330pF anti-alias filter, PGA gain = 1. Default filters and gain settings. T

= T

MIN

to T

MAX

, unless otherwise noted (Note 1).

Typical values are at T

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

PGA disabled 60 80

Analog Supply Current I

AVDD

All channels selected

PGA enabled 120 140

Digital Supply Current I

DVDD

26 40 mA

AVDD

Shutdown Current

DVDD

STATIC ACCURACY—FINE DAC (C

= 200pF, R

= 10kΩ)

Resolution 12 Bits

Integral Nonlinearity INL -5 +5 LSB

Differential Nonlinearity DNL Guaranteed monotonic -1 +1 LSB

Offset Error -70 +70 mV

Offset-Error Temperature

Coefficient

±50 µV/°C

Gain Error -2 0 %

Gain-Error Temperature

Coefficient

±20

ppm of

FS/°C

DYNAMIC PERFORMANCE—FINE DAC (C

= 200pF, R

= 10kΩ)

Output Noise f = 0.1Hz to 1MHz 200 µV

RMS

DAC Glitch Impulse Major carry transition 12 nV•s

25% to 75% FS 3

Voltage-Output Settling Time

1% FS 1.5

µs

Voltage-Output Slew Rate 0.6 V/µs

STATIC ACCURACY—REFDACH AND REFDACL

Resolution 8 Bits

Integral Nonlinearity INL -0.5 +0.5 LSB

Differential Nonlinearity DNL -0.2 +0.2 LSB

Offset Error -30 +30 mV

Offset-Error Temperature

Coefficient

±50 µV/°C

Gain Error -5 +5 LSB

Gain-Error Temperature

Coefficient

±20

ppm of

FS/°C

FLASH MEMORY

Programming Endurance 10,000 Cycles

Data Retention T

= +85°C 15 Years

1 2 3 4 5 6 7 8 9 10 11 ... 31 32

MAX11043 1

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Rainbow-electronics MAX11043 Manual de usuario Pagina 6

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