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| MAX11359A Datasheet, PDF (3/66 Pages) Maxim Integrated Products – 16-Bit Data-Acquisition System with ADC, DAC, UPIOs, RTC, Voltage Monitors, and Temp Sensor | |||
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16-Bit Data-Acquisition System with ADC, DAC,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
ELECTRICAL CHARACTERISTICS (continued)
(AVDD = DVDD = +1.8V to +3.6V, VREF = +1.25V, external reference, CLK32K = 32.768kHz (external clock), CREG = 10µF, CCPOUT =
10µF, 10µF between CF+ and CF-, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Normal-Mode 60Hz Rejection
Ratio
Normal-Mode 50Hz Rejection
Ratio
Absolute Input Range
SYMBOL
CONDITIONS
MIN TYP
PGA gain = 1, unipolar mode, data rate =
50sps (Note 2)
100
Data rate = 10sps or 50sps, PGA gain = 1,
100
unipolar mode (Note 2)
Internal temperature sensor disabled
(see Figure 26)
VAGND
MAX UNITS
dB
dB
AVDD
V
Differential Input Range
Unipolar mode
Bipolar mode
DC Input Current (Note 7)
Input Sampling Capacitance
Input Sampling Rate
CIN
fSAMPLE
ADC not in measurement mode, mux
enabled, TA ⤠+55°C, inputs = +0.1V to
(AVDD - 0.1V)
TA = +85°C
External Source Impedance at Input
See Table 3
FORCE-SENSE DAC (RL = 10k⦠and CL = 200pF, FBA = OUTA, unless otherwise noted)
Resolution
Guaranteed monotonic
Differential Nonlinearity
DNL Code 3Dhex to 3FF hex
Integral Nonlinearity
INL Code 3Dhex to 3FF hex
Offset Error
Reference to code 52 hex
Offset-Error Tempco
Gain Error
Excludes offset and voltage reference error
Gain-Error Tempco
Excludes offset and reference drift
Input Leakage Current at SWA/B
SWA switches open (Notes 7, 8)
Input Leakage Current at FBA/B
VFBA = +0.3V to
(AVDD - 0.3V)
(Note 7)
TA = -40°C to +85°C
TA = 0°C to +70°C
TA = 0°C to +50°C
DAC Output Buffer Leakage
Current
DAC buffer disabled (Note 7)
-0.05/
Gain
-VREF/
Gain
VREF/
Gain
V
VREF/
Gain
±1
nA
±5
5
pF
21.84
kHz
Table 3
kâ¦
10
Bits
±1
LSB
±4
LSB
±20
mV
±4.4
µV/°C
±5
LSB
±1
ppm/°C
±1
nA
±1
nA
±600
pA
±400
±75
nA
Input Common-Mode Voltage
Line Regulation
Load Regulation
Output Voltage Range
At FBA
AVDD = +1.8V to +3.6V, TA = +25°C
IOUT = ±2mA, CL = 1000pF (Note 2)
0
AVDD -
V
0.35
40
175 µV/V
0.5 µV/µA
VAGND
AVDD
V
_______________________________________________________________________________________ 3
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