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Electrical characteristics (continued) – Rainbow Electronics MAX1204 User Manual

Page 4

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MAX1204

5V, 8-Channel, Serial, 10-Bit ADC
with 3V Digital Interface

4

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Internal compensation mode

Fast power-down (Note 9)

External compensation mode

CONDITIONS

µF

0

Capacitive Bypass at REF

µA

30

70

I

DD

Positive Supply Current

V

0 or -5 ±5%

V

SS

Negative Supply Voltage

V

5 ±5%

V

DD

Positive Supply Voltage

4.7

V/V

1.68

Reference-Buffer Gain

µA

±50

REFADJ Input Current

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

ELECTRICAL CHARACTERISTICS (continued)

V

DD

= +5V ±5%, VL = 2.7V to 3.6V; V

SS

= 0V or -5V ±5%; f

SCLK

= 2.0MHz, external clock (50% duty cycle); 15 clocks/conversion

cycle (133ksps); 4.7µF capacitor at REF; T

A

= T

MIN

to T

MAX

; unless otherwise noted.)

Operating mode

mA

1.5

2.5

Operating mode and fast power-down

µA

50

I

SS

Negative Supply Current

Full power-down (Note 9)

2

10

Full power-down

10

V

2.70

5.25

VL

Logic Supply Voltage

VL = V

DD

= 5V

µA

10

I

VL

Logic Supply Current (Notes 6, 10)

V

DD

= 5V ±5%; external reference, 4.096V;

full-scale input

mV

±0.06

±0.5

PSR

Positive Supply Rejection
(Note 11)

V

SS

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

full-scale input

mV

±0.01

±0.5

PSR

Negative Supply Rejection
(Note 11)

External reference, 4.096V; full-scale input

mV

±0.06

±0.5

PSR

Logic Supply Rejection
(Note 12)

µA

EXTERNAL REFERENCE AT REFADJ

POWER REQUIREMENTS