Rainbow-electronics MAX1402 Manual do Utilizador descarregar pdf (Página 5)

MAX1402

+5V, 18-Bit, Low-Power, Multichannel,

Oversampling (Sigma-Delta) ADC

_______________________________________________________________________________________ 5

2.4576MHz

1.024MHz

Buffers off

Buffers on

2.4576MHz

1.024MHz

370 420

Buffers off

Buffers on

Normal mode,

MF1 = 0,

MF0 = 0

610 700

250 300

Buffers on 610

Buffers on

2X mode,

MF1 = 0,

MF0 = 1

1.2 1.5

CONDITIONS

PD bit = 1, external clock stopped

0.42 0.55

245

2.4576MHz

1.024MHz

Buffers off

Buffers on

2.4576MHz

1.024MHz

1.2

Buffers off

Buffers on

4X mode,

MF1 = 1,

MF0 = 0

µA

4.8 6

110

1.8 2.2

Buffers on 4.8

Buffers on

8X mode,

MF1 = 1,

MF0 = 1

4.8 6

V+

V+ Current

1.8 2.2

1.8

0.42

V+ Standby Current (Note 18)

0.08

70 200

2X mode,

MF1 = 0, MF0 = 1

0.17 0.35

0.13

Normal mode,

MF1 = 0, MF0 = 0

PD bit = 1, external clock stopped 110

150 300

µAV

Standby Current (Note 18)

µA

115 300

2X mode,

MF1 = 0, MF0 = 1

1.024MHz

2.4576MHz

0.28 0.5

Normal mode,

MF1 = 0, MF0 = 0

1.024MHz

175 210

2.4576MHz

0.15

0.11

8X mode,

MF1 = 1, MF0 = 1

0.32 0.45

4X mode,

MF1 = 1, MF0 = 0

0.22 0.40

235 450

µA

1.024MHz

2.4576MHz

3.3V Digital Supply Current

1.024MHz

2.4576MHz

1.024MHz

2.4576MHz

5V Digital Supply Current

UNITSMIN TYP MAXSYMBOLPARAMETER

µA

ELECTRICAL CHARACTERISTICS (continued)

(V+ = +5V ±5%, V

= +2.7V to +5.25V, V

REFIN+

= +2.50V, REFIN- = AGND, f

CLKIN

= 2.4576MHz, T

= T

MIN

to T

MAX

, unless other-

wise noted. Typical values are at T

= +25°C.)

For specified performance V4.75 5.25V+V+ Voltage

V2.7 5.25V

Voltage

dB(Note 17)PSR

Power-Supply Rejection V+

(Note 16)

ANALOG POWER-SUPPLY CURRENT (Measured with digital inputs at either DGND or V

, external CLKIN, burn-out and auxil-

iary currents disabled, X2CLK = 0, CLK = 0 for 1.024MHz, CLK = 1 for 2.4576MHz.)

DIGITAL POWER-SUPPLY CURRENT (Measured with digital inputs at either DGND or V

, external CLKIN, burn-out and auxiliary

currents disabled, X2CLK = 0, CLK = 0 for 1.024MHz, CLK = 1 for 2.4576MHz.)

POWER REQUIREMENTS

1 2 3 4 5 6 7 8 9 10 ... 39 40

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