DC-Coupled Demodulating. Complete, Fully Calibrated Monolithic System. Radar, Sonar, Ultrasonic and Audio Systems. Power Measurement with Absolute Calibration.
|Published (Last):||1 October 2015|
|PDF File Size:||1.73 Mb|
|ePub File Size:||17.68 Mb|
|Price:||Free* [*Free Regsitration Required]|
The AD is a complete monolithic logarithmic amplifier. Two ADs in cascade can provide up to 95 dB of dynamic range at reduced bandwidth. The AD uses a successive detection scheme to provide an output current proportional to the logarithm of the input voltage.
Each stage has an associated full-wave detector, whose output current depends on the absolute value of its input voltage. On chip resistors can be used to convert this output current to a voltage with several convenient slope options.
Scaling is also guaranteed for sinusoidal inputs. At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
It is the most comprehensive PLL Synthesizer design and simulation tool available today. Simulations performed include all key non-linear effects that are significant in affecting PLL performance. ADIsimPLL removes at least one iteration from the design process, thereby speeding the design- to-market. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability.
We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing. The package for this IC i. An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.
For detailed drawings and chemical composition please consult our Package Site. Pin Count is the number of pins, balls, or pads on the device. This is the acceptable operating range of the device. The various ranges specified are as follows:. Indicates the packing option of the model Tube, Reel, Tray, etc. This is the date Analog Devices, Inc. Most orders ship within 48 hours of this date.
Once an order has been placed, Analog Devices, Inc. It is important to note the scheduled dock date on the order entry screen. We do take orders for items that are not in stock, so delivery may be scheduled at a future date. Also, please note the warehouse location for the product ordered. Transit times from these sites may vary. Sample availability may be better than production availability.
Please enter samples into your cart to check sample availability. Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb Lead free information page.
The Purchase button will be displayed if model is available for purchase online at Analog Devices or one of our authorized distributors. Select the purchase button to display inventory availability and online purchase options. The Sample button will be displayed if a model is available for web samples. If a model is not available for web samples, look for notes on the product page that indicate how to request samples or Contact ADI. Data Sheet. Data Sheet Rev.
Low power operation typically mW at 65 V Low cost plastic packages also available. Product Details The AD is a complete monolithic logarithmic amplifier. Product Highlights Absolute calibration of a wideband logarithmic amplifier is unique. The AD is a high accuracy measurement device, not simply a logarithmic building block. Advanced design results in unprecedented stability over the full military temperature range.
The fully differential signal path greatly reduces the risk of instability due to inadequate power supply decoupling and shared ground connections, a serious problem with commonly used unbalanced designs. Differential interfaces also ensure that the appropriate ground connection can be chosen for each signal port.
They further increase versatility and simplify applications. The dc-coupled signal path eliminates the need for numerous interstage coupling capacitors and simplifies logarithmic conversion of subsonic signals. The dynamic range using cascaded ADs can be extended to 95 dB by the inclusion of a simple filter between the two devices.
Applications Radar, sonar, ultrasonic and audio systems Precision instrumentation from DC to MHz Power measurement with absolute calibration Wide range high accuracy signal compression Alternative to discrete and hybrid IF strips Replaces several discrete log amp ICs.
Log Detectors. Comparable Parts Click to see all in Parametric Search. Product Lifecycle Production At least one model within this product family is in production and available for purchase. Product Highlight 1.
Industrial Applications PDF. Frequently Asked Questions 1. Reference Materials. Product Selection Guide 1. Space Qualified Parts List. Technical Articles 8.
Log amps and directional couplers enable VSWR detection. Analog Dialogue 5. A Quarter-Century of Analog Dialogue. Design Resources. AD Material Declaration. Quality And Reliability. Symbols and Footprints. AD Discussions. Part Status Confirmation. All AD Discussions. Select a country. Check Inventory. Model Package Pins Temp. Price Rohs Orders from Analog Devices. Model The model number is a specific version of a generic that can be purchased or sampled.
Status Status indicates the current lifecycle of the product. This can be one of 4 stages: Pre-Release: The model has not been released to general production, but samples may be available. Production: The model is currently being produced, and generally available for purchase and sampling. Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time. Obsolete: The specific part is obsolete and no longer available.
Other models listed in the table may still be available if they have a status that is not obsolete. Package Description The package for this IC i.
Pin Count Pin Count is the number of pins, balls, or pads on the device. Temperature Range This is the acceptable operating range of the device. Please consult the datasheet for more information.
Datasheet Analog Devices AD640
AD640 Datasheet PDF
AD640 Amplifier. Datasheet pdf. Equivalent