MAX1021(2008) 데이터 시트보기 (PDF) - Maxim Integrated

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MAX1021
(Rev.:2008)

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

Maxim Integrated 

10-Bit, Multichannel ADCs/DACs with FIFO,

Temperature Sensing, and GPIO Ports

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

Acquisition Time

tACQ (Note 5)

Conversion Time

Internally clocked

tCONV Externally clocked

External Clock Frequency

Duty Cycle

fCLK Externally clocked conversion (Note 5)

Aperture Delay

Aperture Jitter

ANALOG INPUTS

Input Voltage Range (Note 6)

Unipolar

Bipolar

Input Leakage Current

Input Capacitance

INTERNAL TEMPERATURE SENSOR

Measurement Error (Notes 5, 7)

Temperature Resolution

TA = +25°C

TA = TMIN to TMAX

INTERNAL REFERENCE

REF1 Output Voltage

(Note 8)

MIN

TYP

MAX

UNITS

0.6

µs

5.5

µs

3.6

0.1

3.6

MHz

40

60

%

30

ns

< 50

ps

0

-VREF / 2

VREF

V

+VREF / 2

±0.01

±1

µA

24

pF

±0.7

±1.0

1/8

±3.0

°C

°C/LSB

2.482

2.50

2.518

V

REF1 Voltage Temperature

Coefficient

REF1 Output Impedance

REF1 Short-Circuit Current

EXTERNAL REFERENCE

TCREF

VREF = 2.5V

±30

ppm/°C

6.5

kΩ

0.39

mA

REF1 Input Voltage Range

VREF1 REF mode 11 (Note 4)

1

AVDD +

V

0.05

REF2 Input Voltage Range

(Note 4)

REF1 Input Current (Note 9)

REF2 Input Current

VREF2

IREF1

IREF2

REF mode 01

REF mode 11

VREF = 2.5V, fSAMPLE = 225ksps

Acquisition between conversions

VREF = 2.5V, fSAMPLE = 225ksps

Acquisition between conversions

1

AVDD +

0.05

V

0

1

25

80

µA

±0.01

±1

25

80

µA

±0.01

±1

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