AD8312: 50 MHz to 3.5 GHz, 45 dB RF Log Detector
The AD8312 is a complete low cost subsystem for the measurement of RF signals in the frequency range of 50 MHz to 3.5 GHz. It has a typical dynamic range of 45 dB and is intended for use in a wide ...More
AD8312: 50 MHz to 3.5 GHz, 45 dB RF Log Detector
Product Description
The AD8312 is a complete low cost subsystem for the measurement of RF signals in the frequency range of 50 MHz to 3.5 GHz. It has a typical dynamic range of 45 dB and is intended for use in a wide variety of cellular handsets and other wireless devices. It provides a wider dynamic range and better accuracy than possible using discrete diode detectors. In particular, its temperature stability is excellent over the full operating range of -40°C to +85°C.
Its high sensitivity allows measurement at low power levels, thus reducing the amount of power that needs to be coupled to the detector. It is essentially a voltage-responding device, with a typical signal range of 1.25 mV to 224 mV rms or -45 dBm to 0 dBm re 50 Ω.
Features
- Complete RF Detector Function
- Typical Range: -45 dBm to 0 dBm re 50 Ω
- Frequency Response from 50 MHz to 3.5 GHz
- Temperature-Stable Linear-in-dB
Response Accurate to 3.5 GHz
- Rapid Response: 85/120 ns (rise/fall)
- Low Power: 12 mW at 2.7 V
- Temperature range of -40°C to +85°C
- Available in a 6-ball wafer-level chip scale package, 1.0 mm x 1.5 mm
Diagrams
- Enlarge
- Other Diagrams
- Symbols and Footprints
Functional Block Diagram for AD8312
50 MHz to 3.5 GHz, 45 dB RF Log Detector
Other Diagrams for AD8312
50 MHz to 3.5 GHz, 45 dB RF Log Detector
AD8312 Pin Configuration
Functional Block Diagram for AD8312
| Part# | Product Description | RF Frequency (MHz) | Dynamic Range (dB) | Temp Stability (dB) | Response Time (ns typ) | Voltage Supply (V) | Supply Current (max) | Package | Price* (1000-4999) |
|---|---|---|---|---|---|---|---|---|---|
| AD606 | Limiter Output | - | 80 | - | 400 | 4.5 to 5.5 | 13 | 16-Lead DIP, 16-Lead SOIC | $22.00 |
| AD640 | Military Specified Part Available | - | 50 | ±1 | 10 | +/- 4.5 to +/- 7.5 | 44 | 20-Lead DIP, 20-Lead LCC, 20-Lead PLCC | $36.48 |
| AD641 | Military Specified Part Available | - | 44 | ±1 | 10 | +/- 4.5 to +/- 7.5 | 44 | 20-Lead DIP, 20-Lead LCC, 20-Lead PLCC | $32.82 |
| AD8302 | Dual-Channel Gain and Phase Outputs | 2,700 | 60 | ±1 | 60 | 2.7 to 5.5 | 19 | 14-Lead TSSOP | $12.14 |
| AD8306 | Military Specified Part Available | 5 to 400 | 100 | ±1 | 73 | 2.7 to 5.5 | 16 | 16-Lead SOP | $14.67 |
| AD8307 | High Dynamic Range | dc to 500 | 92 | ±1 | 400 | 2.7 to 5.5 | 8 | 8-Lead SOIC/DIP | $6.07 |
| AD8309 | Limiter Output | 5 to 500 | 100 | ±1 | 67 | 2.7 to 5.5 | 16 | 16-Lead TSSOP | $7.84 |
| AD8310 | High Dynamic Range | dc to 440 | 100 | ±1 | 15 | 2.7 to 5.5 | 8 | 8-Lead SOIC | $4.00 |
| AD8311 | Low Power for Battery Operation | 100 to 2500 | 50 | ±0.5 | 150 | 2.7 to 5.5 | 8.5 | WLCSP | $1.27 |
| AD8312 | Low Power for Battery Operation | 50 to 3500 | 45 | ±0.5 | 70 | 2.7 to 5.5 | 4.2 | WLCSP | $1.27 |
| AD8313 | Industry Standard | 100 to 2500 | 70 | ±1.25 | 40 | 2.7 to 5.5 | 14 | 8-Lead uSOIC | $7.99 |
| AD8314 | Industry Standard | 100 to 2700 | 45 | ±1 | 70 | 2.7 to 5.5 | 4.5 | 8-Lead uSOIC/CSP | $1.10 |
| AD8315 | Low Power for Battery Operation | 100 to 2500 | 50 | ±1 | 150 | 2.7 to 5.5 | 8.5 | 8-Lead uSOIC | $4.00 |
| AD8316 | Dual Output AD8315 | 100 to 2500 | 49 | ±1 | 50 | 2.7 to 5.5 | 8.5 | 16-Lead CSP | - |
| AD8317 | Available in Die | 1 to 10000 | 55 | ±0.5 | 6 | 3 to 5.5 | 20 | 8-Lead CSP | $3.98 |
| AD8318 | Integrated Temp Sensor | 1 to 8000 | 70 | ±0.5 | 10 | 4.5 to 5.5 | 68 | 16-Lead CSP | $5.05 |
| AD8319 | Pin-compatible with AD8317 | 1 to 10000 | 45 | ±0.5 | 6 | 3 to 5.5 | 22 | 8-Lead CSP | $1.77 |
| ADL5513 | 125°C Operation, Broadband | 1 to 4000 | 80 | ±0.5 | 10 | 2.7 to 5.5 | - | 16-Lead CSP | - |
| ADL5519 | Dual-Channel AD8317 | 1 kHz to 10000 | 62 | ±0.5 | 6 | 3 to 5.5 | 56 | 32-Lead LFCSP | $5.04 |
* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S.
Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.
AD8312 Model Options
| Model | Status | Package | Pins | Temp. Range |
Price* (1000 pcs.) |
Production** Availability |
ROHS Compilant | Samples Cart | Purchase Cart |
|---|---|---|---|---|---|---|---|---|---|
| AD8312-EVALZ | Prodn | EVALUATION BOARDS | - | Comm. | $100.19 | 11/28/2008 | Y | Contact ADI | Add To Cart |
| AD8312ACBZ-P2 | Prodn | 6 Ball WLCSP | 6 | Comm. | $1.32 | 12/12/2008 |
Y
Material Declaration |
Contact ADI | Add To Cart |
| AD8312ACBZ-P7 | Prodn | 6 Ball WLCSP | 6 | Comm. | $1.27 | 10/03/2008 |
Y
Material Declaration |
Add To Cart | Add To Cart |
Help
- 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).
For detailed drawings and chemical composition please consult our Package Site
- Commercial: 0 to +70 degrees Celsius
- Military : -55 to +125 degrees Celsius
- Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
- Automotive: -40 to +125 degrees Celsius
Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.
*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. 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. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples iinto your cart to check sample availability.

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