Rainbow-electronics MAX1326 Manual do Utilizador descarregar pdf (Página 4)

MAX1316–MAX1318/MAX1320–MAX1322/MAX1324–MAX1326

8-/4-/2-Channel, 14-Bit, Simultaneous-Sampling ADCs

with ±10V, ±5V, and 0 to +5V Analog Input Ranges

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(AV

= +5V, DV

= +3V, AGND = DGND = 0V, V

REF

= V

REFMS

= +2.5V (external reference), C

REF

= C

REFMS

= 0.1µF, C

REF+

REF-

= 0.1µF, C

REF+-to-REF-

= 2.2µF || 0.1µF, C

COM

= 2.2µF || 0.1µF, C

MSV

= 2.2µF || 0.1µF (unipolar devices, MAX1316/

MAX1317/MAX1318), MSV = AGND (bipolar devices, MAX1320/MAX1321/MAX1322/MAX1324/MAX1325/MAX1326), f

CLK

= 10MHz,

50% duty cycle, INTCLK/EXTCLK = AGND (external clock), SHDN = DGND, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical val-

ues are at T

= +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Input-Voltage Low V

0.3 x

Input Hysteresis 15 mV

Input Capacitance C

15 pF

Input Current I

= 0V or DV

±1µA

CLOCK-SELECT INPUT (INTCLK/EXTCLK)

Input-Voltage High

0.7 x

Input-Voltage Low

0.3 x

DIGITAL OUTPUTS (D0–D13, EOC, EOLC)

Output-Voltage High V

SOURCE

= 0.8mA

0.6

Output-Voltage Low V

SINK

= 1.6mA 0.4 V

Tri-State Leakage Current RD ≥ V

or CS ≥ V

0.06

1µA

Tri-State Output Capacitance RD ≥ V

or CS ≥ V

15 pF

POWER SUPPLIES

Analog-Supply Voltage AV

4.75 5.25

Digital-Supply Voltage DV

2.70 5.25

MAX1316/MAX1317/MAX1318, all channels

selected

46 51

MAX1320/MAX1321/MAX1322, all channels

selected

46 51

Analog-Supply Current I

AVDD

MAX1324/MAX1325/MAX1326, all channels

selected

46 51

MAX1316/MAX1317/MAX1318,

all channels selected

1 1.6

MAX1320/MAX1321/MAX1322,

all channels selected

1 1.6

Digital-Supply Current (Note 6) I

DVDD

LOAD

100pF

MAX1324/MAX1325/MAX1326,

all channels selected

1 1.6

AVDD

SHDN

= DV

, V

= float 10

Shutdown Current (Note 7)

DVDD

= V

= DV

, V

SHDN

= DV

0.1 2

µA

Power-Supply Rejection Ratio PSRR AV

= +4.75V to +5.75V (Note 8) 50 dB

1 2 3 4 5 6 7 8 9 ... 26 27

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