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| MAX1415 Datasheet, PDF (5/36 Pages) Maxim Integrated Products – 16-Bit, Low-Power, 2-Channel, Sigma-Delta ADCs | |||
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16-Bit, Low-Power, 2-Channel,
Sigma-Delta ADCs
ELECTRICAL CHARACTERISTICSâMAX1415 (continued)
(VDD = 3V, GND = 0, VREF+ = 1.225V, VREF- = GND, external fCLKIN = 2.4576MHz, CLKDIV bit = 0, CREF+ to GND = 0.1µF, CREF- to
GND = 0.1µF, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Typical Conversion-Time
Variation
âtCONV tCONV = 1/ODR
±0.5
%
TIMING CHARACTERISTICSâMAX1415
(Note 16) (Figures 8, 9)
PARAMETER
SYMBOL
DRDY High Time
Reset Pulse-Width Low
DRDY Fall to CS Fall Setup Time
t1
CS Fall to SCLK Rise Setup Time
t2
SCLK Fall to DOUT Valid Delay
t3
SCLK Pulse-Width High
t4
SCLK Pulse-Width Low
t5
CS Rise to SCLK Rise Hold Time
t6
Bus Relinquish Time After SCLK
Rising Edge
t7
SCLK Fall to DRDY Rise Delay
t8
DIN to SCLK Setup Time
t9
DIN to SCLK Hold Time
t10
CONDITIONS
MIN
500/
fCLKIN
100
0
120
0
100
100
0
TYP
30
20
MAX UNITS
s
ns
ns
ns
100
ns
ns
ns
ns
100
ns
100
ns
ns
ns
ELECTRICAL CHARACTERISTICSâMAX1416
(VDD = 5V, GND = 0, VREF+ = 2.5V, VREF- = GND, fCLKIN = 2.4576MHz, CLKDIV bit = 0, CREF+ to GND = 0.1µF, CREF- to GND =
0.1µF, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
DC ACCURACY
Resolution (No Missing Codes)
16
Bits
Output Noise
(Tables 1, 3)
µV
Integral Nonlinearity
INL Gain = 1, bipolar mode, unbuffered
±0.0015 %FSR
Unipolar Offset Error
After calibration
(Note 1)
µV
Unipolar Offset Drift
(Note 2)
0.5
µV/°C
Bipolar Zero Error
After calibration
(Note 1)
µV
Bipolar Zero Drift (Note 2)
Gain = 1 to 4
Gain = 8 to 128
0.5
µV/°C
0.1
_______________________________________________________________________________________ 5
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