Datasheet

MAX11359A
16-Bit Data-Acquisition System with ADC, DAC,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
4
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
Output Slew Rate
52 hex to 3FF hex code swing rising or
falling, R
L
= 10kΩ, C
L
= 100pF
40 V/ms
Output-Voltage Settling Time 10% to 90% rising or falling to ±0.5 LSB 65 µs
f = 0.1Hz to
10Hz
80
Input Voltage Noise
Referred to FBA,
excludes reference noise
f = 10Hz to
10kHz
200
µV
P-P
OUTA shorted to AGND 20
Output Short-Circuit Current
OUTA shorted to AVDD 15
mA
Input-Output SWA/SWB
Switch Resistance
Between SWA and OUTA, HFCK enabled 150 Ω
SWA/SWB Switch Turn-On/Off
Time
HFCK enabled 100 ns
Power-On Time Excluding reference 18 µs
EXTERNAL REFERENCE (REF)
Input Voltage Range V
AGND
V
AVDD
V
Input Resistance DAC on, internal REF and ADC off 2.5 MΩ
DC Input Leakage Current Internal REF, DAC, and ADC off (Note 7) 100 nA
INTERNAL VOLTAGE REFERENCE (C
REF
= 4.7µF)
V
AVDD
≥ +1.8V, T
A
= +25°C 1.238 1.251 1.264
V
AVDD
≥ +2.2V, T
A
= +25°C 1.976 1.996 2.016
Reference Output Voltage V
REF
V
AVDD
≥ +2.7V, T
A
= +25°C 2.349 2.422 2.495
V
V
REF
= 1.251V 15 50
Output-Voltage Temperature
Coefficient (Note 7)
TC
V
REF
= 1.996V, 2.422V 65
ppm/
o
C
REF shorted to AGND 18 mA
Output Short-Circuit Current I
RSC
REF shorted to AVDD 90 µA
Line Regulation T
A
= +25°C 100 µV/V
I
SOURCE
= 0
to 500µA
1.2
Load Regulation T
A
= +25°C, V
REF
= 1.25V
I
SINK
= 0 to
50µA
1.7
µV/µA