MAX1202ACAP datasheet(4/24 Pages) MAXIM

4 / 24 page

µA

5V, 8-Channel, Serial, 12-Bit ADCs

with 3V Digital Interface

_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(VDD = +5V ±5%, VL = 2.7V to 3.6V; VSS = 0V or -5V ±5%; fSCLK = 2.0MHz, external clock (50% duty cycle); 15 clocks/conversion

cycle (133ksps); MAX1202—4.7µF capacitor at REF pin; MAX1203—external reference, VREF = 4.096V applied to REF pin;

TA = TMIN to TMAX; unless otherwise noted.)

Operating mode

1.5

2.5

Internal compensation mode

VDD = 5V ±5%; external reference, 4.096V;

full-scale input

±0.06

±0.5

Fast power-down (Note 9)

External compensation mode

MAX1202

CONDITIONS

2.70

5.25

Logic Supply Voltage

VL = VDD = 5V

µA

IVL

Logic Supply Current (Notes 6, 10)

PSR

Positive Supply Rejection

(Note 11)

VSS = -5V ±5%; external reference, 4.096V;

full-scale input

±0.01

±0.5

PSR

Negative Supply Rejection

(Note 11)

External reference, 4.096V; full-scale input

±0.06

±0.5

PSR

Logic Supply Rejection

(Note 12)

µA

µF

Capacitive Bypass at REF

0 or -5 ±5%

VSS

Negative Supply Voltage

5 ±5%

VDD

Positive Supply Voltage

4.7

1.68

±50

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

MAX1203

V/V

1.64

Reference-Buffer Gain

MAX1203

µA

±5

REFADJ Input Current

Full power-down

Operating mode and fast power-down

µA

ISS

Negative Supply Current

Full power-down (Note 9)

µA

IDD

210

Positive Supply Current

EXTERNAL REFERENCE AT REFADJ

POWER REQUIREMENTS

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