2x4-Channel, Simultaneous-Sampling
12-Bit ADCs
ELECTRICAL CHARACTERISTICS (continued)
(AV
= +5V 5ꢁ, AV = -5V 5ꢁ, DV
= +5V 5ꢁ, V
= +2.5V (external reference), AGND = DGND = 0, 4.ꢀµF capacitor
DD
SS
DD
REFIN
from REFOUT to AGND, 0.1µF capacitor from REFIN to AGND, f
= 16MHz, external clock, 50ꢁ duty cycle. T = T
to T
,
CLK
A
MIN
MAX
unless otherwise noted. Typical values are at T = +25°C.)
A
PARAMETER
ANALOG INPUT
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX115
MAX116
5
Input Voltage Range
Input Current
V
V
IN
2.5
625
15
MAX115 (-5V to +5V range)
I
IN
µA
pF
MAX116 (-2.5V to +2.5V range)
Input Capacitance
TRACK/HOLD
C
16
IN
Acquisition Time
t
600
ns
MHz
MHz
mV/ms
ns
ACQ
Small-Signal Bandwidth
Full-Power Bandwidth
Drop Rate
10
1.3
2
Aperture Delay
10
30
500
Aperture Jitter
ps
Aperture-Delay Matching
REFERENCE OUTPUT (Note ꢀ)
Output Voltage
ps
V
T
= +25°C
2.462
2.5
0.5
30
2.532
V
REFOUT
A
External Load Regulation
REFOUT Tempco
0 < I
< 1mA
mV/mA
ppm/°C
REF
(Note 8)
External Capacitive Bypass
at REFIN
0.1
4.ꢀ
µF
µF
External Capacitive Bypass
at REFOUT
22
REFERENCE INPUT
Input Voltage Range
Input Current
2.40
2.50
2.60
50
V
µA
k
Input Resistance (Note 9)
Input Capacitance
10
10
pF
EXTERNAL CLOCK
External Clock Frequency
INTERNAL CLOCK
Internal Clock Frequency
16
MHz
MHz
5.6
2.4
10
14.8
DIGITAL INPUTS (CONVST, RD, WR, CS, CLK, A0–A3) (Note 1)
Input High Voltage
Input Low Voltage
V
V
V
IH
V
0.8
1
IL
CONVST, RD, WR, CS, CLK
Input Current
I
IN
µA
pF
A0–A3
10
Input Capacitance
C
IN
15
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3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
