ADC 2 Manual do Utilizador descarregar pdf (Página 5)

MAX110/MAX111

Low-Cost, 2-Channel, ±14-Bit Serial ADCs

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ELECTRICAL CHARACTERISTICS—MAX111 (continued)

= 5V ±5%, f

XCLK

= 1MHz, ÷ 2 mode (DV2 = 1), 81,920 CLK cycles/conv, V

REF+

= 1.5V, V

REF-

= 0V, T

= T

MIN

to T

MAX

unless otherwise noted. Typical values are at T

= +25°C.)

V4.75 5.25V

Positive Supply Voltage

0.4

0.8V

204.80

Output Low Voltage

µA

Input Low Voltage

640 1200

CONV

Synchronous Conversion

Time (Note 7)

102,400 clock-cycles/conversion

XCLK, I

SINK

= 200µA

pF10

Reference Input

Capacitance

MHz0.25 1.25

OSC

Oversampling Clock

Frequency

(Note 8)

V2.4V

Input High Voltage

(Note 3)

V0 1.5V

REF

960

Supply Current V

= 5.25V

Differential Reference

Input Voltage Range

Performance guaranteed by supply rejection test

500

REF+

REF-

Reference Input Current

pF10

REF+

= 1.5V, V

REF-

= 0V

0.4

V0V

- 3.2

REF+

REF-

- 0.5

Output High Voltage

Input Capacitance

Absolute Reference Input

Voltage Range

- 0.5

XCLK

= 500kHz,

continuous-conversion mode

µA±1

XCLK, V

= 4.75V, I

SOURCE

= 200µA

20.48

410

LKG

Input Leakage Current

XCLK unloaded,

continuous-conversion mode, RC

oscillator operational (Note 9)

(Note 3)

µA±1I

LKG

Leakage Current

pF10Output Capacitance

µA

Digital inputs at 0V or 5V

Power-Down Current

DOUT, BUSY, V

= 4.75V, I

SOURCE

= 1.0mA

= 5.25V, V

XCLK

= 0V, PD = 1

OUT

= 5V or 0V

(Note 3)

10,240 clock-cycles/conversion

DOUT, BUSY, I

SINK

= 1.6mA

CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER

CONVERSION TIME

DIGITAL OUTPUTS (DOUT, BUSY, and XCLK when RCSEL = V

)

POWER REQUIREMENTS (all digital inputs at 0V or 5V)

REFERENCE INPUTS

DIGITAL INPUTS (CS, SCLK, DIN, and XCLK when RCSEL = 0V)

1 2 3 4 5 6 7 8 9 10 ... 23 24

MAX110/MAX111 1

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