Electrical characteristics (continued) – Rainbow Electronics MAX1204 User Manual
Page 4
MAX1204
5V, 8-Channel, Serial, 10-Bit ADC
with 3V Digital Interface
4
_______________________________________________________________________________________
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