Rainbow Electronics MAX1111 - Manual (Page 3)

V
MAX1110/MAX1111
+2.7V, Low-Power, Multichannel,
Serial 8-Bit ADCs
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ELECTRICAL CHARACTERISTICS (continued)
(V DD = +2.7V to +5.5V; unipolar input mode; COM = 0V; f SCLK = 500kHz, external clock (50% duty cycle); 10 clocks/conversion
cycle (50ksps); 1µF capacitor at REFOUT; T A = T MIN to T MAX ; unless otherwise noted.)
On/off-leakage current, V CH_ = 0V or V DD
Used for data transfer only
(Note 6)
External clock, 2MHz
CONDITIONS
ppm/°C ±50
mA 3.5 REFOUT Short-Circuit Current
pF 18 Input Capacitance
µA ±0.01 ±1 Multiplexer Leakage Current
1
2
50 500
kHz 400 Internal Clock Frequency
0mA to 0.5mA output load mV 2.5 Load Regulation (Note 8)
ns 10 Aperture Delay
µs 1 t ACQ Track/Hold Acquisition Time
UNITS MIN TYP MAX SYMBOL PARAMETER
ps
V 1
V DD +
50mV
Input Voltage Range
(Note 9) µA 1 20 Input Current
<50 Aperture Jitter
External clock, 500kHz, 10 clocks/conversion 20
Internal clock
µs
25 55
t CONV Conversion Time (Note 5)
Bipolar input, COM = V REFIN / 2
Unipolar input, COM = 0V
COM ±
V REFIN / 2
V
0 V REFIN
Input Voltage Range, Single-
Ended and Differential (Note 7)
V 1.968 2.048 2.128 REFOUT Voltage
External Clock-Frequency Range
MHz
kHz
Capacitive Bypass at REFOUT µF
REFOUT Temperature Coefficient
V 2.7 5.5 V DD Supply Voltage
85 250
I DD Supply Current (Note 2)
V DD = 2.7V to 3.6V
Full-scale input
C
LOAD = 10pF
V DD = 2.7V to 3.6V; external reference,
2.048V; full-scale input
mV ±0.4 ±4 PSR
Power-Supply Rejection
(Note 10)
Operating mode
2
µA
Power-down
3.2 10
Software
SHDN at DGND
Operating mode 120 250 V DD = 5.5V
Full-scale input
C
LOAD = 10pF
Reference disabled
Reference disabled
45
80
CONVERSION RATE
ANALOG INPUT
INTERNAL REFERENCE
EXTERNAL REFERENCE AT REFIN
POWER REQUIREMENTS