MAX1110 Datasheet, PDF (3/20 Pages) Maxim Integrated Products – +2.7V, Low-Power, Multichannel, Serial 8-Bit ADCs

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