AD6654BBC Analog Devices Inc, AD6654BBC Datasheet - Page 71

• Manufacturer Part Number: AD6654BBC
• Description: IC ADC 14BIT W/6CH RSP 256CSPBGA
• Manufacturer: Analog Devices Inc

Specifications of AD6654BBC

• Number Of Bits: 14
• Sampling Rate (per Second): 92.16M
• Data Interface: Serial, Parallel
• Number Of Converters: 1
• Power Dissipation (max): 2.5W
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -25°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 256-CSPBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ACCESSING MULTIPLE AD6654 DEVICES
If multiple AD6654 devices are on a single board, the microport
pins for these devices can be shared. In this configuration, a
single programming device (DSP, FPGA, or microcontroller)
can program all AD6654 devices connected to it.
Each AD6654 has four CHIPID pins that can be connected in
16 different ways. During a write/read access, the internal
circuitry checks to see if the CHIPID bits in the chip I/O access
control register (Address 0x02) are the same as the logic levels
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of the CHIPID pins (hardwired to the part). If the CHIPID bits
and the CHIPID pins have the same value, then a write/read
access is completed; otherwise, the access is ignored.
To program multiple devices using the same microport control
and data buses, the devices should have separate CHIPID pin
configurations. A write/read access can be made only on the
intended chip; all other chips would ignore the access.
AD6654