MAX1401 Datasheet, PDF (4/36 Pages) Maxim Integrated Products – +3V, 18-Bit, Low-Power, Multichannel, Oversampling Sigma-Delta ADC

+3V, 18-Bit, Low-Power, Multichannel,
Oversampling (Sigma-Delta) ADC
ELECTRICAL CHARACTERISTICS (continued)
(V+ = +2.7V to +3.6V, V_DD = +2.7V to +3.6V, V_REFIN+ = +1.25V, REFIN- = AGND, f_CLKIN = 2.4576MHz, T_A = T_MIN to T_MAX, unless
otherwise noted. Typical values are at T_A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
AIN and REFIN Input Sampling
Frequency
f_S
(Table 15)
Hz
REFIN+ - REFIN- Voltage
(Note 15)
LOGIC INPUTS
Input Current
I_IN
Input Low Voltage
V_IL
Input High Voltage
Input Hysteresis
LOGIC OUTPUTS
Output Low Voltage (Note 16)
V_IH
V_HYS
V_OL
Output High Voltage (Note 16)
V_OH
Floating-State Leakage Current
I_L
Floating-State Output
Capacitance
C_O
TRANSDUCER BURN-OUT (Note 17)
Current
I_BO
Initial Tolerance
Drift
POWER REQUIREMENTS
V+ Voltage
V+
V_DD Voltage
V_DD
Power-Supply Rejection V+
(Note 18)
PSR
±5% for specified performance; functional
with lower V_REF
All inputs except CLKIN
CLKIN only
All inputs except CLKIN
CLKIN only
All inputs except CLKIN
DOUT and INT, I_SINK = 100µA
CLKOUT, I_SINK = 10µA
DOUT and INT, I_SOURCE = 100µA
CLKOUT, I_SOURCE = 10µA
For specified performance
1.25
V
-10
+10
µA
0.4
V
0.4
2
V
2.4
200
mV
V_DD - 0.3
V_DD - 0.3
-10
9
0.4
V
0.4
V
10
µA
pF
0.1
±10
±0.05
µA
%
%/°C
2.7
3.6
V
2.7
3.6
V
(Note 19)
dB
4 _______________________________________________________________________________________