Rainbow Electronics MAX1113 - Manual (Page 3)

µA
MAX1112/MAX1113
+5V, Low-Power, Multi-Channel,
Serial 8-Bit ADCs
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ELECTRICAL CHARACTERISTICS (continued)
(V DD = +4.5V 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 5)
External clock, 2MHz
CONDITIONS
ppm/°C ±50
mA 6 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 4.5 Load Regulation (Note 7)
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 8) 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 4)
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 6)
V 3.936 4.096 4.256 REFOUT Voltage
External Clock-Frequency Range
MHz
kHz
Capacitive Bypass at REFOUT µF
REFOUT Temperature Coefficient
V 4.5 5.5 V DD Supply Voltage
V DD = 4.5V to 5.5V; external reference,
4.096V; full-scale input
mV ±0.4 ±4 PSR
Power-Supply Rejection
(Note 9)
2
Power-down
3.2 10
Software
SHDN at DGND
Operating mode 135 250 Full-scale input
C
LOAD = 10pF Reference disabled 95
I DD µA Supply Current
CONVERSION RATE
ANALOG INPUT
INTERNAL REFERENCE
EXTERNAL REFERENCE AT REFIN
POWER REQUIREMENTS