MAX1021 datasheet(6/47 Pages) MAXIM

6 / 47 page

10-Bit, Multichannel ADCs/DACs with FIFO,

Temperature Sensing, and GPIO Ports

_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(AVDD = DVDD = 2.7V to 3.6V (MAX1021/MAX1023/MAX1057), external reference VREF = 2.5V (MAX1021/MAX1023/MAX1057), AVDD =

DVDD = 4.75V to 5.25V (MAX1020/MAX1022/MAX1058), external reference VREF = 4.096V (MAX1020/MAX1022/MAX1058), fSCLK = 4.8MHz

(50% duty cycle), TA = -40°C to +85°C, unless otherwise noted. Typical values are at AVDD = DVDD = 3V (MAX1021/MAX1023/MAX1057),

AVDD = DVDD = 5V (MAX1020/MAX1022/MAX1058), TA = +25°C. Outputs are unloaded, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output-Voltage High

VOH

ISOURCE = 2mA

DVDD -

0.5

Tri-State Leakage Current

±10

µA

Tri-State Output Capacitance

COUT

DIGITAL OUTPUT (EOC) (Note 14)

Output-Voltage Low

VOL

ISINK = 2mA

0.4

Output-Voltage High

VOH

ISOURCE = 2mA

DVDD -

0.5

Tri-State Leakage Current

±10

µA

Tri-State Output Capacitance

COUT

DIGITAL OUTPUTS (GPIO_) (Note 14)

ISINK = 2mA

0.4

GPIOB_, GPIOC_ Output-

Voltage Low

ISINK = 4mA

0.8

GPIOB_, GPIOC_ Output-

Voltage High

ISOURCE = 2mA

DVDD -

0.5

GPIOA_ Output-Voltage Low

ISINK = 15mA

0.8

GPIOA_ Output-Voltage High

ISOURCE = 15mA

DVDD -

0.8

Tri-State Leakage Current

±10

µA

Tri-State Output Capacitance

COUT

POWER REQUIREMENTS (Note 15)

Digital Positive-Supply Voltage

DVDD

2.70

AVDD

Idle, all blocks shut down

0.2

µA

Digital Positive-Supply Current

DIDD

Only ADC on, external reference

MAX1021/MAX1023/MAX1057

2.7

3.6

Analog Positive-Supply Voltage

AVDD

MAX1020/MAX1022/MAX1058

4.75

5.25

Idle, all blocks shut down

0.2

µA

fSAMPLE = 300ksps

2.8

4.2

Only ADC on,

external reference

fSAMPLE = 100ksps

2.6

Analog Positive Supply Current

AIDD

All DACs on, no load, internal reference

1.5

4.0

AVDD = 2.7V

MAX1021/MAX1023/MAX1057

-77

REF1 Positive-Supply Rejection

PSRR

AVDD = 4.75V

MAX1020/MAX1022/MAX1058

-80

MAX1021/MAX1023/MAX1057

AVDD = 2.7V to 3.6V

±0.1

±0.5

DAC Positive-Supply Rejection

PSRD

Output

code =

FFFhex MAX1020/MAX1022/MAX1058

AVDD = 4.75V to 5.25V

±0.1

±0.5

MAX1021 Datasheet(PDF) 6 Page - Maxim Integrated Products

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