Datasheet

MAX11359A
16-Bit Data-Acquisition System with ADC, DAC,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
7
Maxim Integrated
ELECTRICAL CHARACTERISTICS (continued)
(V
AVDD
= V
DVDD
= +1.8V to +3.6V, V
REF
= +1.25V, external reference, CLK32K = 32.768kHz (external clock), C
REG
= 10µF, C
CPOUT
=
10µF, 10µF between CF+ and CF-, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Capacitance
SNO_, SNC_, or SCM_ = AVDD or AGND;
switch connected to enabled mux input
5pF
CHARGE PUMP (10µF at REG and 10µF external capacitor between CF+ and CF-)
Maximum Output Current I
OUT
10 mA
No load 3.2 3.3 3.6
Output Voltage
I
OUT
= 10mA 3.0
V
Output Voltage Ripple
10µF external capacitor between CPOUT
and DGND, I
OUT
= 10mA, excluding ESR of
external capacitor
50 mV
Load Regulation
I
OUT
= 10mA, excluding ESR of external
capacitor
15 20 mV/mA
REG Input Voltage Range Internal linear regulator disabled 1.6 1.8 V
REG Input Current Linear regulator off, charge pump off 3 nA
CPOUT Input Voltage Range Charge pump disabled 1.8 3.6 V
CPOUT Input Leakage Current Charge pump disabled 2 nA
SIGNAL-DETECT COMPARATOR
TSEL[2:0] = 0 hex 0
TSEL[2:0] = 4 hex 50
TSEL[2:0] = 5 hex 100
TSEL[2:0] = 6 hex 150
Differential Input-Detection
Threshold Voltage
TSEL[2:0] = 7 hex 200
mV
Differential Input-Detection
Threshold Error
±10 mV
Common-Mode Input Voltage
Range
V
AGND
V
AVDD
V
Turn-On Time 50 µs
VOLTAGE MONITORS
DVDD Monitor Supply Voltage
Range
For valid reset 1.0 3.6 V
Trip Threshold (V
DVDD
Falling) 1.80 1.85 1.90 V
DVDD Monitor Timeout Reset
Period
1.5 s
HYSE bit set to logic 1 200
DVDD Monitor Hysteresis
HYSE bit set to logic 0 35
mV