Datasheet

MAX11359A
16-Bit Data-Acquisition System with ADC, DAC,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
5
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
Long-Term Stability (Note 9) 35
ppm/
1000hrs
f = 0.1Hz to 10Hz, V
AVDD
= 3V 50
Output Noise Voltage
f = 10Hz to 10kHz, V
AVDD
= 3V 400
µV
P-P
Turn-On Settling Time Buffer only, settle to 0.1% of final value 100 µs
TEMPERATURE SENSOR
Temperature Measurement
Resolution
ADC resolution is 16-bit, 10sps 0.11 °C/LSB
T
A
= 0°C to +50°C ±0.5
Internal Temperature-Sensor
Measurement Error
Internal voltage
reference, four-
current calibration,
and stored
calibration
coefficients
T
A
= -40
o
C to +85°C ±1
°C
T
A
= +25°C ±0.50
T
A
= 0°C to +50°C ±0.5
External Temperature-Sensor
Measurement Error (Note 10)
T
A
= -40°C to +85°C ±1.0
°C
Temperature Measurement Noise 0.18 °C
RMS
Temperature Measurement
Power-Supply Rejection Ratio
0.2 °C/V
OP AMP (R
L
= 10kΩ connected to V
AVDD
/2)
Input Offset Voltage V
OS
V
CM
= 0.5V ±15 mV
Offset-Error Tempco 3 µV/
o
C
T
A
= -40°C to +85°C 0.006 ±1nA
T
A
= 0°C to +70°C4±300IN1+, IN2+, IN3+
T
A
= 0°C to +50°C2±200
pA
T
A
= -40°C to +85°C 0.025 ±1nA
T
A
= 0°C to +70°C20±600
Input Bias Current (Note 7) I
BIAS
IN1-, IN2-, IN3-
T
A
= 0°C to +50°C ±400
pA
Input Offset Current I
OS
V
IN 1 _
, V
IN 2 _
= + 0.3V to ( V
AVDD
- 0.3V ) ( N ote
±1nA
Input Common-Mode Voltage
Range
CMVR 0
V
AVDD
- 0.35
V
0 ≤ V
C M
≤ 75mV 60
Common-Mode Rejection Ratio CMRR
75mV < V
C M
≤ V
AVDD
- 0.35V, T
A
= +25°C 60 75
dB