Electrical characteristics (continued) – Rainbow Electronics MAX1314 User Manual
Page 4
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
4
_______________________________________________________________________________________
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
EXTERNAL REFERENCE
(REF and REF
MS
are externally driven)
REF Input Voltage Range
V
REF
2.0
2.5
3.0
V
REF Input Resistance
R
REF
(Note 5)
5
k
Ω
REF Input Capacitance
15
pF
REF
MS
Input Voltage Range
V
REFMS
2.0
2.5
3.0
V
REF
MS
Input Resistance
R
REFMS
(Note 6)
5
k
Ω
REF
MS
Input Capacitance
15
pF
REF+ Output Voltage
V
REF+
V
REF
= +2.5V
3.850
V
COM Output Voltage
V
COM
V
REF
= +2.5V
2.600
V
REF- Output Voltage
V
REF-
V
REF
= +2.5V
1.350
V
Differential Reference Voltage
V
REF+
-
V
REF
-
V
REF
= +2.5V
2.500
V
DIGITAL INPUTS
(D0–D7,
RD
,
WR
,
CS
, CLK, SHDN,
CHSHDN
, CONVST)
Input-Voltage High
V
IH
0.7 x DV
DD
V
Input-Voltage Low
V
IL
0.3 x DV
DD
V
Input Hysteresis
20
mV
Input Capacitance
C
IN
15
pF
Input Current
I
IN
V
IN
= 0 or DV
DD
0.02
±1
µA
CLOCK-SELECT INPUT
(INTCLK/
EXTCLK
)
Input-Voltage High
V
IH
0.7 x AV
DD
V
Input-Voltage Low
V
IL
0.3 x AV
DD
V
DIGITAL OUTPUTS
(D0–D11,
EOC
,
EOLC
)
Output-Voltage High
V
OH
I
SOURCE
= 0.8mA, Figure 1
DV
DD
- 0.6
V
Output-Voltage Low
V
OL
I
SINK
= 1.6mA, Figure 1
0.4
V
D0–D11 Tri-State Leakage Current
RD = high or CS = high
0.06
1
µA
D 0–D 11 Tr i - S tate Outp ut
C ap aci tance
RD = high or CS = high
15
pF
POWER SUPPLIES
Analog Supply Voltage
AV
DD
4.75
5.25
V
Digital Supply Voltage
DV
DD
2.70
5.25
V
MAX1304/MAX1305/MAX1306,
all channels selected
55
60
MAX1308/MAX1309/MAX1310,
all channels selected
54
60
Analog Supply Current
I
AVDD
MAX1312/MAX1313/MAX1314,
all channels selected
54
60
mA
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= +5V, DV
DD
= +3V, AGND = DGND = 0, V
REF
= V
REFMS
= +2.5V (external reference), C
REF
= C
REFMS
= 0.1µF, C
REF+
=
C
REF-
= 0.1µF, C
REF+-to-REF-
= 2.2µF || 0.1µF, C
COM
= 2.2µF || 0.1µF, C
MSV
= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipo-
lar devices), f
CLK
= 16.67MHz 50% duty cycle, INTCLK/EXTCLK = AGND (external clock), SHDN = DGND, T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C. See Figures 3 and 4.)