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Analog Devices Inc./Maxim Integrated MAX2208EBS+T
- Part No.:
- MAX2208EBS+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- RF Detectors
- Package:
- 4-WFBGA, CSPBGA
- Datasheet:
-
MAX2208EBS+T.pdf
- Description:
- IC RF DETECT 800MHZ-2GHZ 4UCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,456
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Product details
Overview
MAX2208EBS+T from Maxim Integrated is a CDMA-optimized RF power detector IC operating from 800MHz to 2GHz, featuring integrated filtering for average power detection, ±1dB full-power temperature-compensated accuracy, and 25dB dynamic range. It interfaces directly with directional couplers via internal 50Ω termination and delivers monotonic DC output voltage proportional to input RF power for closed-loop PA control in cellular handset front-ends.
For engineers reviewing the MAX2208EBS+T datasheet, MAX2208EBS+T pinout, MAX2208EBS+T application, or MAX2208EBS+T equivalent, this device is selected for CDMA/TDMA dual-band handset PA modules where stable, low-drift RF power monitoring across -40°C to +85°C is required without external op-amps or filters.
Technical Context
The MAX2208EBS+T implements a temperature-compensated peak-detection architecture with internal averaging control, enabling accurate average power measurement of CDMA signals with high peak-to-average ratios. Its input stage includes a 50Ω matched termination for direct coupling from directional couplers, eliminating external impedance-matching components.
It operates from 2.7V to 5.0V supply, draws only 2–3.5mA idle current, and features logic-controlled shutdown (SHDN pin) reducing supply current to ≤10µA. Output voltage scales linearly with input power over its 25dB detection range, with response time of 15µs at 90% settling and turn-on time of 2µs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 800MHz to 2GHz - supports CDMA, TDMA, and WCDMA bands without re-tuning. |
| Dynamic Range | 25dB - enables accurate average power detection across CDMA signal envelopes with 5.4dB peak-to-average ratio. |
| Temp Accuracy | ±1dB at full power - ensures stable PA output control across industrial temperature range (-40°C to +85°C). |
| Supply Current | 2–3.5mA - low power consumption suitable for battery-powered handset applications. |
| Input Termination | Internal 50Ω - eliminates need for external matching network when used with standard directional couplers. |
| Shutdown Current | ≤10µA - enables rapid power gating during transmit/receive transitions to conserve system energy. |
| Response Time | 15µs (90% settling) - matches CDMA burst timing requirements for real-time power loop correction. |
Pinout & Package
MAX2208EBS+T is housed in a lead-free 2×2 mm, 0.5mm-pitch UCSP™ (Ultra Compact Silicon Package) with four solder bumps, occupying only 1mm² PCB area and optimized for space-constrained mobile RF front-ends.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 RFIN/SHDN |
RF Input & Shutdown Control | AC-coupled RF input port with integrated 50Ω termination; also accepts logic-high (>2.0V) or logic-low (<0.6V) to enable/disable detector operation. |
| A2 VCC |
Power Supply | 2.7V–5.0V analog supply; requires local bypass capacitor to GND for RF stability and noise rejection. |
| B1 GND |
Ground Reference | Primary ground connection; must be tied to low-inductance PCB ground plane using multiple vias for RF integrity. |
| B2 OUT |
Detection Output | Analog DC voltage output proportional to log-scaled RF input power; drives ADC inputs directly without op-amp buffering. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 50Ω input termination | Enables direct interface with directional couplers-no external resistors or matching networks needed. |
| Temperature-compensated detection | Reduces worst-case error to ±1dB at full power, ensuring consistent PA control across thermal cycling. |
| 25dB dynamic range for CDMA | Accurately tracks average power of CDMA2000 pilot + DCCH signals with 5.4dB peak-to-average ratio. |
| No external filter or op-amp required | Lowers BOM count and layout complexity-OUT connects directly to ADC input in typical handset designs. |
| Logic-controlled shutdown | Reduces quiescent current to ≤10µA during receive mode, extending battery life in TDMA/CDMA handsets. |
Applications
| CDMA Handset PA Control | TDMA Dual-Band Handset |
|---|---|
|
Use Scenario: Real-time transmit power regulation in CDMA2000 mobile handsets using pilot + DCCH channel feedback. IC Role / Device Role / Timing Role: Average power detector providing DC voltage output to baseband processor's ADC for closed-loop PA bias adjustment. Use Value: Maintains ±0.5dB transmit power tolerance across temperature and battery voltage variation without calibration drift. |
Use Scenario: Power monitoring in dual-band TDMA handsets supporting 850/1900MHz bands with burst-mode transmission. IC Role / Device Role / Timing Role: Fast-response RF detector supplying power-level data to digital power control algorithm during TDMA time slots. Use Value: 2µs turn-on time and 15µs response ensure accurate power capture within 577µs GSM/TDMA burst window. |
| WCDMA Front-End Module | PA Module Calibration |
|
Use Scenario: In-situ RF power verification inside compact WCDMA power amplifier modules during production test and field operation. IC Role / Device Role / Timing Role: Embedded power sensor feeding real-time output level data to module controller for adaptive biasing. Use Value: 1mm² UCSP footprint allows integration into multi-chip PA modules without increasing form factor. |
Use Scenario: Factory calibration of PA gain and linearity using known RF input levels across frequency and temperature. IC Role / Device Role / Timing Role: Reference-grade detector providing traceable, temperature-stable output voltage for calibration lookup tables. Use Value: ±1dB full-power accuracy eliminates need for per-unit temperature compensation algorithms in production test software. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF power detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX2207EBS+T | Same 2×2 UCSP package, identical pinout, but optimized for TDMA with lower 2–3.5mA idle current and no integrated CDMA filter. | Preferred for TDMA-only systems requiring minimal current draw; lacks CDMA-specific averaging filter response. | Select MAX2207EBS+T when TDMA efficiency is prioritized over CDMA compatibility. |
| ADL5511ACPZ-R7 | 3.3V-only supply, 100MHz–4GHz range, 45dB dynamic range, requires external 50Ω termination and op-amp buffer. | Broader frequency coverage and higher dynamic range, but larger 3×3 LFCSP package and higher BOM cost. | Choose ADL5511ACPZ-R7 for wideband test equipment or multi-standard base stations where flexibility outweighs size constraints. |
Compared with MAX2207EBS+T and ADL5511ACPZ-R7, the MAX2208EBS+T uniquely balances CDMA-optimized filtering, ultra-compact UCSP packaging, and zero-external-component operation-making it the most integrated solution for space- and power-constrained CDMA/TDMA handset PA modules.
Availability
MAX2208EBS+T is available at Aetrix Electronics and suitable for CDMA handset design, TDMA dual-band RF front-ends, and WCDMA PA module integration requiring stable component supply, long-term lifecycle support, and RoHS-compliant lead-free packaging.
Supply support for MAX2208EBS+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and RF solutions for communications, computing, and industrial markets.
The MAX2205–MAX2208 family was designed specifically for cellular handset power amplifier control, delivering highly repeatable, temperature-stable RF power detection in minimal-area UCSP packaging for next-generation mobile devices.
FAQ
What is the RF input frequency range supported by the MAX2208EBS+T?
The MAX2208EBS+T supports an RF input frequency range of 800MHz to 2GHz, covering all major CDMA (800/1900MHz), TDMA (850/1900MHz), and WCDMA (2100MHz) bands. Its performance-including ±1dB detection accuracy and 25dB dynamic range-is fully specified and guaranteed across this entire range per the official Maxim datasheet.
Does the MAX2208EBS+T require external components for basic operation?
No, the MAX2208EBS+T requires only three external components for full functionality: a VCC bypass capacitor, an input AC-coupling capacitor, and a pull-up resistor on the RFIN/SHDN pin. It integrates 50Ω input termination, temperature compensation circuitry, and CDMA-optimized filtering-eliminating the need for external op-amps, filters, or matching networks in standard handset implementations.
How does the MAX2208EBS+T differ from the MAX2206EBS+T?
The MAX2208EBS+T is optimized for CDMA applications with a 25dB dynamic range and integrated filtering for average power detection, while the MAX2206EBS+T targets GSM/EDGE with 40dB dynamic range and no integrated filter. Both share the same 2×2 UCSP package and pinout, but their internal architectures differ: MAX2208EBS+T uses a temperature-compensated peak detector with averaging, whereas MAX2206EBS+T emphasizes wide-range logarithmic response.
What is the shutdown behavior of the MAX2208EBS+T?
When the SHDN pin (A1) is driven low (<0.6V), the MAX2208EBS+T enters shutdown mode, reducing supply current to ≤10µA and pulling the OUT pin to ≤0.01V. This enables rapid power gating during receive intervals in TDMA/CDMA systems. The device resumes full operation within 2µs after SHDN is raised above 2.0V-critical for burst-mode timing compliance.
Is the MAX2208EBS+T pin-compatible with other devices in the MAX2205–MAX2208 family?
Yes, the MAX2208EBS+T shares identical pinout, package dimensions (2×2 mm UCSP), and bump layout with MAX2205EBS+T, MAX2206EBS+T, and MAX2207EBS+T. All four devices use the same A1(RFIN/SHDN), A2(VCC), B1(GND), B2(OUT) terminal assignment and can be substituted at the board level-though functional differences (e.g., internal filtering, dynamic range, current draw) require firmware or calibration updates.
MAX2208EBS+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Frequency:
- 800MHz ~ 2GHz
- RF Type:
- Cellular, CDMA
- Input Range:
- -10dBm ~ 15dBm
- Accuracy:
- ±0.3dB
- Voltage - Supply:
- 2.7V ~ 5V
- Mounting Type:
- 2 mA
- Supplier Device Package:
- Surface Mount
- Current - Supply:
- 4-UCSP (1.05x1.05)
MAX2208EBS+T FAQ
1.How can I place an order for MAX2208EBS+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX2208EBS+T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX2208EBS+T reliable?
The price and inventory of MAX2208EBS+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX2208EBS+T is usually 5 days.
3.What payment methods are accepted for MAX2208EBS+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX2208EBS+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX2208EBS+T?
MAX2208EBS+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX2208EBS+T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX2208EBS+T?
For technical support, including MAX2208EBS+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX2208EBS+T requirements.
6.How does Aetrix verify that MAX2208EBS+T is sourced from the original manufacturer or authorized distributors?
All MAX2208EBS+T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX2208EBS+T meets industry standards.
7.What is the process for return or replacement of MAX2208EBS+T?
All MAX2208EBS+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX2208EBS+T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX2208EBS+T part is unused and in its original packaging.
Return procedure for MAX2208EBS+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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