Rainbow-electronics MAX1113 Manual do Utilizador descarregar pdf (Página 3)

µA

MAX1112/MAX1113

+5V, Low-Power, Multi-Channel,

Serial 8-Bit ADCs

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

= +4.5V to +5.5V; unipolar input mode; COM = 0V; f

SCLK

= 500kHz, external clock (50% duty cycle); 10 clocks/conversion

cycle (50ksps); 1µF capacitor at REFOUT; T

= T

MIN

to T

MAX

; unless otherwise noted.)

On/off leakage current, V

CH_

= 0V or V

Used for data transfer only

(Note 5)

External clock, 2MHz

CONDITIONS

ppm/°C±50

mA6REFOUT Short-Circuit Current

pF18Input Capacitance

µA±0.01 ±1Multiplexer Leakage Current

50 500

kHz400Internal Clock Frequency

0mA to 0.5mA output load mV4.5Load Regulation (Note 7)

ns10Aperture Delay

µs1t

ACQ

Track/Hold Acquisition Time

UNITSMIN TYP MAXSYMBOLPARAMETER

50mV

Input Voltage Range

(Note 8) µA120Input Current

<50Aperture Jitter

External clock, 500kHz, 10 clocks/conversion 20

Internal clock

µs

25 55

CONV

Conversion Time (Note 4)

Bipolar input, COM = V

REFIN

/ 2

Unipolar input, COM = 0V

COM ±

REFIN

/ 2

REFIN

Input Voltage Range, Single-

Ended and Differential (Note 6)

V3.936 4.096 4.256REFOUT Voltage

External Clock-Frequency Range

MHz

kHz

Capacitive Bypass at REFOUT µF

REFOUT Temperature Coefficient

V4.5 5.5V

Supply Voltage

= 4.5V to 5.5V; external reference,

4.096V; full-scale input

mV±0.4 ±4PSR

Power-Supply Rejection

(Note 9)

Power-down

3.2 10

Software

SHDN at DGND

Operating mode 135 250

Full-scale input

LOAD

= 10pF

Reference disabled 95

µASupply Current

CONVERSION RATE

ANALOG INPUT

INTERNAL REFERENCE

EXTERNAL REFERENCE AT REFIN

POWER REQUIREMENTS

1 2 3 4 5 6 7 8 ... 19 20

MAX1112/MAX1113 1
Serial 8-Bit ADCs 1

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