MAX1043BETX datasheet(3/40 Pages) MAXIM

Part #	MAX1043BETX

Description	10-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports

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Manufacturer	MAXIM [Maxim Integrated Products]

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10-Bit, Multichannel ADCs/DACs with FIFO,

Temperature Sensing, and GPIO Ports

_______________________________________________________________________________________

3

ELECTRICAL CHARACTERISTICS (continued)

(AVDD = DVDD = 2.7V to 5.25V, external reference VREF = 2.5V, fCLK = 3.6MHz (50% duty cycle), TA = -40°C to +85°C, unless

otherwise noted. Typical values are at AVDD = DVDD = 3V, TA = +25°C. Outputs are unloaded, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Acquisition Time

tACQ

(Note 5)

0.6

µs

Internally clocked

5.5

Conversion Time

tCONV

Externally clocked

3.6

µs

External Clock Frequency

fCLK

Externally clocked conversion (Note 5)

0.1

3.6

MHz

Duty Cycle

40

60

%

Aperture Delay

30

ns

Aperture Jitter

< 50

ps

ANALOG INPUTS

Unipolar

0

VREF

Input Voltage Range (Note 6)

Bipolar

-VREF / 2

+VREF / 2

V

Input Leakage Current

±0.01

±1

µA

Input Capacitance

24

pF

INTERNAL TEMPERATURE SENSOR

TA = +25°C

±0.7

Measurement Error (Notes 5, 7)

TA = TMIN to TMAX

±1.0

±3.0

°C

Temperature Resolution

1/8

°C/LSB

INTERNAL REFERENCE

REF1 Output Voltage

(Note 8)

2.482

2.50

2.518

V

REF1 Voltage Temperature

Coefficient

TCREF

±30

ppm/°C

REF1 Output Impedance

6.5

k

Ω

REF1 Short-Circuit Current

VREF = 2.5V

0.39

mA

EXTERNAL REFERENCE

REF1 Input Voltage Range

VREF1

REF mode 11 (Note 4)

1

AVDD +

0.05

V

REF mode 01

1

AVDD +

0.05

REF2 Input Voltage Range

(Note 4)

VREF2

REF mode 11

0

1

V

VREF = 2.5V, fSAMPLE = 225ksps

25

80

REF1 Input Current (Note 9)

IREF1

Acquisition between conversions

±0.01

±1

µA

VREF = 2.5V, fSAMPLE = 225ksps

25

80

REF2 Input Current

IREF2

Acquisition between conversions

±0.01

±1

µA

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