Rainbow-electronics MAX1326 Manual de usuario Pagina 4
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MAX1316–MAX1318/MAX1320–MAX1322/MAX1324–MAX1326
8-/4-/2-Channel, 14-Bit, Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= +5V, DV
DD
= +3V, AGND = DGND = 0V, 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, MAX1316/
MAX1317/MAX1318), MSV = AGND (bipolar devices, MAX1320/MAX1321/MAX1322/MAX1324/MAX1325/MAX1326), f
CLK
= 10MHz,
50% duty cycle, INTCLK/EXTCLK = AGND (external clock), SHDN = DGND, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical val-
ues are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input-Voltage Low V
IL
0.3 x
DV
DD
V
Input Hysteresis 15 mV
Input Capacitance C
IN
15 pF
Input Current I
IN
V
IN
= 0V or DV
DD
±1µA
CLOCK-SELECT INPUT (INTCLK/EXTCLK)
Input-Voltage High
0.7 x
AV
DD
V
Input-Voltage Low
0.3 x
AV
DD
V
DIGITAL OUTPUTS (D0–D13, EOC, EOLC)
Output-Voltage High V
OH
I
SOURCE
= 0.8mA
DV
DD
-
0.6
V
Output-Voltage Low V
OL
I
SINK
= 1.6mA 0.4 V
Tri-State Leakage Current RD ≥ V
IH
or CS ≥ V
IH
0.06
1µA
Tri-State Output Capacitance RD ≥ V
IH
or CS ≥ V
IH
15 pF
POWER SUPPLIES
Analog-Supply Voltage AV
DD
4.75 5.25
V
Digital-Supply Voltage DV
DD
2.70 5.25
V
MAX1316/MAX1317/MAX1318, all channels
selected
46 51
MAX1320/MAX1321/MAX1322, all channels
selected
46 51
Analog-Supply Current I
AVDD
MAX1324/MAX1325/MAX1326, all channels
selected
46 51
mA
MAX1316/MAX1317/MAX1318,
all channels selected
1 1.6
MAX1320/MAX1321/MAX1322,
all channels selected
1 1.6
Digital-Supply Current (Note 6) I
DVDD
C
LOAD
=
100pF
MAX1324/MAX1325/MAX1326,
all channels selected
1 1.6
mA
I
AVDD
V
SHDN
= DV
DD
, V
CH
= float 10
Shutdown Current (Note 7)
I
DVDD
V
RD
= V
WR
= DV
DD
, V
SHDN
= DV
DD
0.1 2
µA
Power-Supply Rejection Ratio PSRR AV
DD
= +4.75V to +5.75V (Note 8) 50 dB
- General Description 1
- Applications 1
- Features 1
- Ordering Information 1
- Selector Guide 1
- ABSOLUTE MAXIMUM RATINGS 2
- ELECTRICAL CHARACTERISTICS 2
- Pin Description 9
- Pin Description (continued) 10
- Detailed Description 13
- Internal Clock 14
- Applications Section 15
- Starting a Conversion 16
- = 200ns, f 17
- = 10MHz) 17
- Power-Up Reset 19
- Reference 19
- Transfer Functions 20
- Definitions 22
- Chip Information 23
- Typical Operating Circuits 24
- Pin Configurations 26
- Package Information 27
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