MAX1020BETX datasheet(3/44 Pages) MAXIM

Part #	MAX1020BETX

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)

(VAVDD = VDVDD = 2.7V to 3.6V (MAX1057), external reference VREF = 2.5V (MAX1057), VAVDD = VDVDD = 4.75V to 5.25V

(MAX1020/MAX1022/MAX1058), external reference VREF = 4.096V (MAX1020/MAX1022/MAX1058), fCLK = 3.6MHz (50% duty cycle),

TA = -40°C to +85°C, unless otherwise noted. Typical values are at VAVDD = VDVDD = 3V (MAX1057), VAVDD = VDVDD = 5V

(MAX1020/MAX1022/MAX1058), 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

MAX1057

2.482

2.50

2.518

REF1 Output Voltage (Note 8)

MAX1020/MAX1022/MAX1058

4.066

4.096

4.126

V

REF1 Voltage Temperature

Coefficient

TCREF

±30

ppm/°C

REF1 Output Impedance

6.5

k

Ω

VREF = 2.5V

0.39

REF1 Short-Circuit Current

VREF = 4.096V

0.63

mA

EXTERNAL REFERENCE

REF1 Input Voltage Range

VREF1

REF mode 11 (Note 4)

1

VAVDD

+ 0.05

V

REF mode 01

1

VAVDD

+ 0.05

REF2 Input Voltage Range

(Note 4)

VREF2

REF mode 11

0

1

V

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