Rainbow-electronics MAX152 Manual do Utilizador descarregar pdf (Página 3)

MAX152

+3V, 8-Bit ADC with 1µA Power-Down

_______________________________________________________________________________________ 3

PARAMETER CONDITIONS UNITS

CS, WR, RD, PWRDN

2.0

Input High Voltage

INH

MODE 2.4

CS, WR, RD, PWRDN

0.66

Input Low Voltage

INL

MODE 0.8

CS, RD, PWRDN

±1

±3

Input High Current

INH

MODE 15 100

µA

Input Low Current

INL

CS, WR, RD, PWRDN, MODE

±1 µA

Input Capacitance (Note 4)

CS, WR, RD, PWRDN, MODE

58pF

INT, D0-D7, I

SINK

= 20µA

0.1

INT, D0-D7, I

SINK

= 400µA

0.4

Output Low Voltage

RDY, I

SINK

= 1mA

0.4

INT, D0-D7, I

SOURCE

= 20µA

-0.1

Output High Voltage

INT, D0-D7, I

SOURCE

= 400µA

-0.4

Floating-State Current

LKG

D0-D7, RDY ±3 µA

Floating Capacitance (Note 4)

OUT

D0-D7, RDY 58pF

2.5 5

Unipolar operation GND

Positive Supply Voltage

3.0 3.6 V

= 3.6V

2.5 6

1.5 3

Positive Supply Current

= 3.0V

1.5 3.5

CS = RD = V

PWRDN = 0

µA

Negative Supply Current

CS = RD = 0, PWRDN = V

150µA

Power-Down V

Current

CS = RD = V

, PWRDN = 0

125µA

Power-Supply Rejection PSR

= 3.3V ±10%

±1/16 ±1/4 LSB

MAX152E/M, CS = RD = 0,

PWRDN = V

MAX152C, CS = RD = 0,

PWRDN = V

MAX152E/M, CS = RD = 0,

PWRDN = V

Negative Supply Voltage

Bipolar operation (Note 2) -3.6 -3.0

Power-Down V

Current

(Note 5)

MAX152C, CS = RD = 0,

PWRDN = V

SYMBOL MIN TYP MAX

Note 1: Accuracy measurements performed at V

= 3.0V, unipolar mode. Operation over supply range is guaranteed by power-

supply rejection test.

Note 2: Bipolar tests are performed with VREF+ = +1.5V, VREF- = -1.5V, V

= -3.0V.

Note 3: Unipolar input range, V

= 3.0V

P-P

, WR-RD mode, V

= 3.0V

Note 4: Guaranteed by design.

Note 5: Power-down current increases if control inputs are not driven to ground or V

ELECTRICAL CHARACTERISTICS (continued)

(Unipolar input range, V

= 3.0V to 3.6V, GND = 0V, V

= GND, VREF+ = 3.0V, VREF- = GND, specifications are given for RD

mode (pin 7 = GND), T

= T

MIN

to T

MAX

, unless otherwise noted.)

150

MAX152C/E/M

LOGIC INPUTS

LOGIC OUTPUTS

POWER REQUIREMENTS

1 2 3 4 5 6 7 8 ... 11 12

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