AD9222BCPZRL7-65 Analog Devices Inc, AD9222BCPZRL7-65 Datasheet - Page 34

• Manufacturer Part Number: AD9222BCPZRL7-65
• Description: IC,A/D CONVERTER,OCTAL,12-BIT,LLCC,64PIN
• Manufacturer: Analog Devices Inc

Specifications of AD9222BCPZRL7-65

• Number Of Bits: 12
• Sampling Rate (per Second): 65M
• Data Interface: Serial, SPI™
• Number Of Converters: 8
• Power Dissipation (max): 950.5mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LFCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AD9222-65EBZ - BOARD EVALUATION AD9222 65MSPSAD9222-50EBZ - BOARD EVALUATION FOR AD9222
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD9222
HARDWARE INTERFACE
The pins described in Table 14 compose the physical interface
between the user’s programming device and the serial port of
the AD9222. The SCLK and CSB pins function as inputs when
using the SPI. The SDIO pin is bidirectional, functioning as an
input during write phases and as an output during readback.
If multiple SDIO pins share a common connection, care should
be taken to ensure that proper V
same load for each AD9222, Figure 83 shows the number of SDIO
pins that can be connected together and the resulting V
1.800
1.795
1.790
1.785
1.780
1.775
1.770
1.765
1.760
1.755
1.750
1.745
1.740
1.735
1.730
1.725
1.720
1.715
0
10
NUMBER OF SDIO PINS CONNECTED TOGETHER
20
Figure 83. SDIO Pin Loading
30
40
OH
50
levels are met. Assuming the
60
70
80
90
OH
100
level.
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This interface is flexible enough to be controlled by either serial
PROMS or PIC mirocontrollers, providing the user with an
alternative method, other than a full SPI controller, to program
the ADC (see the AN-812 Application Note).
If the user chooses not to use the SPI, these dual-function pins
serve their secondary functions when the CSB is strapped to
AVDD during device power-up. See the Theory of Operation
section for details on which pin-strappable functions are
supported on the SPI pins.