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| MAX1304_11 Datasheet, PDF (4/37 Pages) Maxim Integrated Products – 8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs with ±10V, ±5V | |||
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8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = +5V, VDVDD = +3V, VAGND = VDGND = 0V, VREF = VREFMS = +2.5V (external reference), CREF = CREFMS = 0.1µF, CREF+ =
CREF- = 0.1µF, CREF+-to-REF- = 2.2µF || 0.1µF, CCOM = 2.2µF || 0.1µF, CMSV = 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipo-
lar devices), fCLK = 16.67MHz 50% duty cycle, INTCLK/EXTCLK = AGND (external clock), SHDN = DGND, TA = TMIN to TMAX,
unless otherwise noted. Typical values are at TA = +25°C. See Figures 3 and 4.)
PARAMETER
SYMBOL
CONDITIONS
EXTERNAL REFERENCE (REF and REFMS are externally driven)
REF Input Voltage Range
VREF
REF Input Resistance
RREF (Note 5)
REF Input Capacitance
REFMS Input Voltage Range
VREFMS
REFMS Input Resistance
RREFMS (Note 6)
REFMS Input Capacitance
REF+ Output Voltage
VREF+ VREF = +2.5V
COM Output Voltage
VCOM VREF = +2.5V
REF- Output Voltage
VREF- VREF = +2.5V
Differential Reference Voltage
VREF+ -
VREF-
VREF = +2.5V
DIGITAL INPUTS (D0âD7, RD, WR, CS, CLK, SHDN, CHSHDN, CONVST)
Input-Voltage High
VIH
Input-Voltage Low
VIL
Input Hysteresis
Input Capacitance
CIN
Input Current
IIN VIN = 0V or VDVDD
CLOCK-SELECT INPUT (INTCLK/EXTCLK)
Input-Voltage High
VIH
Input-Voltage Low
VIL
DIGITAL OUTPUTS (D0âD11, EOC, EOLC)
Output-Voltage High
VOH
Output-Voltage Low
VOL
D0âD11 Tri-State Leakage Current
ISOURCE = 0.8mA, Figure 1
ISINK = 1.6mA, Figure 1
RD = high or CS = high
D0âD11 Tri-State Output
Capacitance
RD = high or CS = high
POWER SUPPLIES
Analog Supply Voltage
Digital Supply Voltage
AVDD
DVDD
MAX1304/MAX1305/MAX1306,
all channels selected
MIN TYP MAX UNITS
2.0
2.5
3.0
V
5
kâ¦
15
pF
2.0
2.5
3.0
V
5
kâ¦
15
pF
3.850
V
2.600
V
1.350
V
2.500
V
0.7 x VDVDD
V
0.3 x VDVDD V
20
mV
15
pF
0.02
±1
µA
0.7 x VAVDD
V
0.3 x VAVDD V
VDVDD - 0.6
V
0.4
V
0.06
1
µA
15
pF
4.75
5.25
V
2.70
5.25
V
55
60
Analog Supply Current
IAVDD
MAX1308/MAX1309/MAX1310,
all channels selected
54
60
mA
MAX1312/MAX1313/MAX1314,
all channels selected
54
60
4 _______________________________________________________________________________________
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