MAX1298_12 Datasheet, PDF (3/20 Pages) Maxim Integrated Products – 12-Bit Serial-Output Temperature Sensors with 5-Channel ADC

12-Bit Serial-Output Temperature Sensors
with 5-Channel ADC
ELECTRICAL CHARACTERISTICS (continued)
(V_DD = 4.75V to 5.25V (MAX1298), V_DD = +2.7V to 3.6V (MAX1299), external reference, V_REF = +2.5V (MAX1298), V_REF = +1.2V
(MAX1299), f_SCLK = 2.5MHz, T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at T_A = +25°C.)
PARAMETER
DIGITAL INPUTS
Input Voltage Low
Input Voltage High
Input Hysteresis
Input Leakage Current
Input Capacitance
DIGITAL OUTPUTS
Output Low Voltage
Output High Voltage
Three-State Output Leakage
Current
SYMBOL
V_IL
V_IH
V_HYST
I_IN
CONDITIONS
V_OL
V_OH
I_OUT
I_SINK = 5mA
I_SOURCE = 0.5mA
Three-State Output
Capacitance
POWER REQUIREMENTS
Positive Supply Voltage
MAX1298
V_DD
MAX1299
Full-on, voltage measurements,
internal reference
Full-on, voltage measurements,
external reference
Full-on, temperature measure-
Positive Supply Current (Note 6)
I_DD
ments, internal reference
Full-on, temperature measure-
ments, external reference
Standby, SCLK = GND
Standby-plus, SCLK = GND
Shutdown, SCLK = GND
Power-Supply Rejection Ratio
PSRR (Note 7)
INTERNAL VOLTAGE REFERENCE CHARACTERISTICS
Reference Voltage
V_REF
V_DD = 5V
V_DD = 3V
Reference Tempco
TC V_REF
Output Short-Circuit Current
Capacitive Bypass at REF
REF Output Noise
f_N = 10Hz to 10kHz
MAX1298
MAX1299
MAX1298
MAX1299
MAX1298
MAX1299
MAX1298
MAX1299
MAX1298
MAX1299
MAX1298
MAX1299
MIN TYP
V_DD - 0.8
0.2
16
V_DD - 0.6
15
4.75
2.7
390
350
310
280
440
400
360
330
120
190
2
50
65
2.494 2.50
1.197 1.20
±20
0.1
130
65
MAX UNITS
0.8
V
V
V
1
µA
pF
V
0.6
V
V
±10
µA
pF
5.25
V
3.6
500
500
µA
10
dB
2.506
1.203
1.25
V
ppm/°C
mA
µF
µV_RMS
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