MAX1240 Datasheet, PDF (3/16 Pages) Maxim Integrated Products – +2.7V, Low-Power, 12-Bit Serial ADCs in 8-Pin SO

+2.7V, Low-Power,
12-Bit Serial ADCs in 8-Pin SO
ELECTRICAL CHARACTERISTICS (continued)
(V_DD = +2.7V to +3.6V (MAX1240); V_DD = +2.7V to +5.25V (MAX1241); 73ksps, f_SCLK = 2.1MHz (50% duty cycle); MAX1240—4.7µF
capacitor at REF pin, MAX1241—external reference; V_REF = 2.500V applied to REF pin; T_A = T_MIN to T_MAX; unless otherwise noted.)
PARAMETER
SYMBOL
INTERNAL REFERENCE (MAX1240 only)
REF Output Voltage
REF Short-Circuit Current
REF Temperature Coefficient
Load Regulation (Note 4)
Capacitive Bypass at REF
EXTERNAL REFERENCE (V_REF = 2.500V)
CONDITIONS
T_A = +25°C
MAX1240AC/BC
MAX1240AE/BE
MAX1240AM/BM
MAX1240C
0mA to 0.2mA output load
Input Voltage Range
MIN TYP MAX UNITS
2.480
4.7
2.500
±30
±30
±30
±30
0.35
2.520
30
±50
±60
±80
V
mA
ppm/°C
ppm/°C
µF
1.00
V_DD +
50mV
V
Input Current
Input Resistance
REF Input Current in Shutdown
Capacitive Bypass at REF
DIGITAL INPUTS: SCLK, CS, SHDN
SCLK, CS Input High Voltage
V_IH
SCLK, CS Input Low Voltage
SCLK, CS Input Hysteresis
SCLK, CS Input Leakage
SCLK, CS Input Capacitance
SHDN Input High Voltage
SHDN Input Low Voltage
SHDN Input Current
SHDN Input Mid Voltage
SHDN Voltage, Floating
SHDN Max Allowed Leakage,
Mid Input
V_IL
V_HYST
I_IN
C_IN
V_SH
V_SL
V_SM
V_FLT
SHDN = 0V
V_DD ≤ 3.6V
V_DD > 3.6V (MAX1241)
V_IN = 0V or V_DD
(Note 5)
SHDN = 0V or V_DD
SHDN = float
SHDN = float
100 150
µA
18
25
kΩ
±0.01 10
µA
0.1
µF
2.0
V
3.0
0.8
V
0.2
V
±0.01 ±1
µA
15
pF
V_DD - 0.4
V
0.4
V
±4.0
µA
1.1
V_DD - 1.1
V
V_DD/2
V
±100
nA
DIGITAL OUTPUT: DOUT
Output Voltage Low
V_OL
Output Voltage High
Three-State Leakage Current
Three-State Output Capacitance
V_OH
I_L
C_OUT
I_SINK = 5mA
I_SINK = 16mA
I_SOURCE = 0.5mA
CS = V_DD
CS = V_DD (Note 5)
0.4
V
0.8
V_DD - 0.5
V
±0.01 ±10
µA
15
pF
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