Rainbow Electronics MAX1314 - 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.)