The XRD64L43 is two 10-bit, monolithic, 40 MSPS ADCs. Manufactured using a standard CMOS process, the XRD64L43 offers low power, low cost and excellent performance. The on-chip track-and-hold amplifier(T/H) and voltage reference (VREF) eliminate the need for external active components, requiring only an external ADC conversion clock for the application. The XRD64L43 analog input can be driven with ease due to the high input impedance.
The design architecture uses 17 time-interleaved 10-bit SAR ADCs in each converter to achieve high conversion rate of 40 MSPS minimum. In order to insure and maintain accurate 10-bit operation with respect to time and temperature, XRD64L43 incorporates an auto-calibration circuit which continuously adjusts and matches the offset and linearity of each ADC. This auto-calibration circuit is transparent to the user after the initial 4.2ms calibration (168,000 initial clock cycles).
The power dissipation is only 200mW at 40 MSPS with +2.7V power supply. The digital output data is straight binary format, and the tri-state disable function is provided for common bus interface. The XRD64L43 internal reference provides cost savings and simplifies the design/development. The output voltage of the internal reference is set by two external resistors. The internal reference can be disabled if an external reference is used for a power savings of 50mW.
- 10-Bit Resolution
- Two Monolithic Complete 10-Bit ADCs
- 40 MSPS Conversion Rate
- On-Chip Track-and-Hold
- On-Chip Voltage Reference
- Low 5 pF Input Capacitance
- TTL/CMOS Outputs
- Tri-State Output Buffers
- Single +3.0V Power Supply Operation
- Low Power Dissipation: 200mW-typ @ 2.7V
- Power Down Mode Less Than 5mW
- 75dB Crosstalk (fin=1.0MHz)
- -40°C to +85°C Operation Temperature Range
- Pb-Free, RoHS Compliant Versions Offered
- Medical Imaging
- Data Aquisition Systems
- Digital Comunications
- Reduction of Components
- Reduction of System Cost
- High Performance @ Low Power Dissipation
- Long Term Time and Temperature Stability
Parts & Purchasing
|Part Number||Pkg Code||RoHS||Min Temp||Max Temp||Status||Buy Now||Order Samples|
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.
Frequently Asked Questions
In this example, we looked for XRA1201. Click on part number header or on the link at the bottom of the result. This brings you to the product page. For example:
Click on Parts & Purchasing, highlighted with the blue arrow above. The screen changes to:
Notice the status column and the “Show obsolete parts” link. A legend tells you the definition of the different statuses. Click on the “Show obsolete parts” link to see EOL or OBS part numbers along with the Active part numbers, the legend still present:
Another method to find out if a part is OBS or EOL is to click on SUPPORT at the top:
And then Product Change Notifications:
Type the part into the search, and click on one of the part numbers from the drop down menu. Then you can look for the Product Discontinuation Notice, which generally is at the top of the list, for example:
If you see this, it tells you that this particular orderable part has been discontinued and when the last order date is, or was. If you click on the file, then you can view the notice we sent about this if you purchased the part in the recent past. It may also advise of a replacement part. When an orderable part first becomes discontinued, Product Discontinuation Notices are sent are sent to those who have purchased the parts in the recent past, if purchased directly, with a dated opportunity to place a last order.