MAX1112 Maxim, MAX1112 Datasheet - Page 3

• Manufacturer Part Number: MAX1112
• Description: +5V / Low-Power / Multi-Channel / Serial 8-Bit ADCs
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V
cycle (50ksps); 1µF capacitor at REFOUT; T
CONVERSION RATE
ANALOG INPUT
INTERNAL REFERENCE
EXTERNAL REFERENCE AT REFIN
POWER REQUIREMENTS
Conversion Time (Note 4)
Track/Hold Acquisition Time
Aperture Delay
Aperture Jitter
Internal Clock Frequency
External Clock-Frequency Range
Input Voltage Range, Single-
Ended and Differential (Note 6)
Multiplexer Leakage Current
Input Capacitance
REFOUT Voltage
REFOUT Short-Circuit Current
REFOUT Temperature Coefficient
Load Regulation (Note 7)
Capacitive Bypass at REFOUT
Input Voltage Range
Input Current
Supply Voltage
Supply Current
Power-Supply Rejection
(Note 9)
DD
= +4.5V to +5.5V; unipolar input mode; COM = 0V; f
PARAMETER
_______________________________________________________________________________________
SYMBOL
t
CONV
t
V
PSR
ACQ
I
DD
DD
A
+5V, Low-Power, Multi-Channel,
= T
MIN
Internal clock
External clock, 500kHz, 10 clocks/conversion
External clock, 2MHz
(Note 5)
Used for data transfer only
Unipolar input, COM = 0V
Bipolar input, COM = V
On/off leakage current, V
0mA to 0.5mA output load
(Note 8)
Full-scale input
C
Power-down
V
4.096V; full-scale input
DD
LOAD
to T
= 4.5V to 5.5V; external reference,
MAX
= 10pF
SCLK
; unless otherwise noted.)
CONDITIONS
= 500kHz, external clock (50% duty cycle); 10 clocks/conversion
Operating mode
Reference disabled
Software
SHDN at DGND
REFIN
CH_
/ 2
= 0V or V
Serial 8-Bit ADCs
DD
3.936
MIN
4.5
20
50
1
0
1
1
±0.01
4.096
±0.4
TYP
<50
±50
400
135
4.5
3.2
25
10
18
95
6
1
2
V
COM ±
REFIN
V
V
REFIN
50mV
DD
4.256
MAX
500
250
5.5
±1
±4
55
20
10
2
/ 2
+
ppm/°C
UNITS
MHz
kHz
kHz
mA
mV
mV
ps
µA
pF
µF
µA
µA
µA
µs
µs
ns
V
V
V
V
3