MAX1248 Datasheet, PDF (4/24 Pages) Maxim Integrated Products – 2x4-Channel, Simultaneous-Sampling 14-Bit DAS

+2.7V to +5.25V, Low-Power, 4-Channel,
Serial 10-Bit ADCs in QSOP-16
ELECTRICAL CHARACTERISTICS (continued)
(V_DD = +2.7V to +5.25V; COM = 0V; f_SCLK = 2.0MHz, external clock (50% duty cycle); 15 clocks/conversion cycle (133ksps);
MAX1248—4.7µF capacitor at VREF pin; MAX1249—external reference; VREF = 2.500V applied to VREF pin, T_A = T_MIN to T_MAX,
unless otherwise noted.)
PARAMETER
SHDN Voltage, Floating
SHDN Maximum Allowed
Leakage, Mid Input
SYMBOL
CONDITIONS
V_FLT SHDN = FLOAT
SHDN = FLOAT
MIN TYP MAX UNITS
V_DD / 2
V
±100 nA
DIGITAL OUTPUTS (DOUT, SSTRB)
Output Voltage Low
V_OL
Output Voltage High
Three-State Leakage Current
Three-State Output Capacitance
POWER REQUIREMENTS
Positive Supply Voltage
V_OH
I_L
C_OUT
V_DD
Positive Supply Current
I_DD
I_DD
Supply Rejection (Note 12)
PSR
I_SINK = 5mA
I_SINK = 16mA
I_SOURCE = 0.5mA
CS = V_DD
CS = V_DD (Note 10)
Operating mode,
full-scale input (Note 11)
V_DD = 5.25V
V_DD = 3.6V
Full power-down
V_DD = 5.25V
V_DD = 3.6V
Fast power-down (MAX1248) V_DD = 5.25V
V_DD = 2.7V to 5.25V, full-scale input,
external reference = 2.500V
0.4
V
0.8
V_DD - 0.5
V
±0.01 ±10 µA
15
pF
2.70
5.25
V
1.6
3.0
mA
1.2
2.0
3.5
15
1.2
10
µA
30
70
±0.3
mV
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