Rainbow-electronics MAX1499 Bedienungsanleitung PDF herunterladen (Seite 4)

MAX1497/MAX1499

3.5- and 4.5-Digit, Single-Chip ADCs with LED

Drivers and µC Interface

4 _______________________________________________________________________________________

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

Input Capacitance 10 pF

Average Dynamic Input Current (Note 6) -20 +20 nA

CHARGE PUMP

Output Voltage VNEG C

VNEG

= 0.1µF

-2.60 -2.42 -2.30

DIGITAL INPUTS (SCLK, DIN, CS, CLK)

Input Current I

= 0 or DV

= V

-10 +10 µA

MAX1499

0.3 x

Input Low Voltage V

INL

MAX1497

0.3 x

MAX1499

0.7 x

Input High Voltage V

INH

MAX1497

0.7 x

Input Hysteresis V

HYS

= V

= 3.0V

200

DIGITAL OUTPUTS (DOUT, EOC)

Output Low Voltage V

SINK

= 1mA 0.4 V

SOURCE

= 200µA, M AX 1499

0.8 x

Output High Voltage V

SOURCE

= 200µA, M AX 1497

0.8 x

Tri-State Leakage Current I

DOUT only -1 +1 µA

Tri-State Output Capacitance C

OUT

DOUT only 15 pF

POWER SUPPLY (Note 10)

Voltage V

MAX1497

2.70 5.25

Voltage AV

MAX1499

2.70 5.25

Voltage DV

MAX1499

2.70 5.25

Power-Supply Rejection V

PSRR (Note 7) 80 dB

Power-Supply Rejection AV

PSRR

(Note 7) 80 dB

Power-Supply Rejection DV

PSRR

(Note 7)

100

= 5.25V

664

744

= 3.3V

618

663V

Current (Notes 8, 9) I

VDD

Standby mode

268

325

µA

= 5.25V 640

= 3.3V 600

Current (Notes 8, 9) I

AVDD

Standby mode 305

µA

ELECTRICAL CHARACTERISTICS (continued)

(AV

= DV

= V

= +2.7V to +5.25V, GND = 0, GLED = 0, V

LED

= +2.7V to +5.25V, V

REF+

- V

REF-

= 2.048V (external reference)

REF+

= C

REF-

= 0.1µF, C

VNEG

= 0.1µF. Internal clock mode, unless otherwise noted. All specifications are at T

= T

MIN

to T

MAX

Typical values are at T

= +25°C, unless otherwise noted.)

1 2 3 4 5 6 7 8 9 ... 32 33

Kommentare zu diesen Handbüchern

Keine Kommentare

Rainbow-electronics MAX1499 Bedienungsanleitung Seite 4

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Sensoren Rainbow-electronics MAX1499