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AD7142 Scheda tecnica(PDF) 5 Page - Analog Devices

Il numero della parte AD7142
Spiegazioni elettronici  Programmable Capacitance-to-Digital Converter with Environmental Compensation
PDF  68 Pages
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

AD7142 Scheda tecnica(HTML) 5 Page - Analog Devices

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AD7142
Rev. 0 | Page 5 of 68
SPI TIMING SPECIFICATIONS (AD7142)
TA = −40°C to +85°C; VDRIVE = 1.65 V to 3.6 V; AVCC, DVCC = 2.6 V to 3.6 V, unless otherwise noted. Sample tested at 25°C to ensure
compliance. All input signals are specified with tR = tF = 5 ns (10% to 90% of VCC) and timed from a voltage level of 1.6 V.
Table 4. SPI Timing Specifications
Parameter
Limit at TMIN, TMAX
Unit
Description
fSCLK
5
MHz max
t1
5
ns min
CS falling edge to first SCLK falling edge
t2
20
ns min
SCLK high pulse width
t3
20
ns min
SCLK low pulse width
t4
15
ns min
SDI setup time
t5
15
ns min
SDI hold time
t6
20
ns max
SDO access time after SCLK falling edge
t7
16
ns max
CS rising edge to SDO high impedance
t8
15
ns min
SCLK rising edge to CS high
CS
SCLK
SDI
SDO
t1
116
15
MSB
LSB
23
MSB
LSB
12
15
16
t2
t4
t5
t3
t6
t7
t8
Figure 2. SPI Detailed Timing Diagram



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