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Analog Devices Inc./Maxim Integrated MAX2202EWT+
- Part No.:
- MAX2202EWT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- RF Detectors
- Package:
- 6-WFBGA, WLBGA
- Datasheet:
-
MAX2202EWT+.pdf
- Description:
- MAX2202 RMS POWER DETECTOR
- Quantity:
- Payment:
- Shipping:
Inventory:493
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Product details
Overview
MAX2202EWT+ from Maxim Integrated is an RMS power detector IC for RF power monitoring in cellular infrastructure and handset front-ends, operating from 800MHz to 2.0GHz with -29dBm to 0dBm detection range, 33mV/dB (typ) log slope, ±0.4dB temperature-induced error, and single 2.5V–4.2V supply operation. It delivers stable output voltage independent of input signal peak-to-average ratio (PAR), making it suitable for WCDMA, cdma2000, and HSDPA/HSUPA transceiver power control loops.
For engineers reviewing the MAX2202EWT+ datasheet, MAX2202EWT+ pinout, MAX2202EWT+ application, or MAX2202EWT+ equivalent, key selection considerations include its 6-bump WLP package footprint, ENA-controlled shutdown capability, RMS accuracy across modulation types, and calibrated log conformance at four points (-29dBm, -19dBm, -7dBm, -1dBm).
Technical Context
The MAX2202EWT+ implements a true-RMS detection architecture optimized for wideband CDMA-based waveforms, maintaining <0.1dB RMS accuracy across WCDMA modulation changes. Its internal circuitry processes RF input at RFIN/ENA, applies on-chip filtering via FILT, and produces a DC-coupled logarithmic output at OUT referenced to VCC and GND.
It features integrated enable logic with VIH = 1.1V (min) and VIL = 0.6V (max), allowing direct interfacing with baseband processors. The device's thermal design supports operation from -40°C to +85°C with θJA = 95°C/W in its 6-bump WLP package, and its RF input S11 remains <-9dB when matched with 50Ω termination and 220pF series capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Detection Range | -29dBm to 0dBm - covers full transmit power range for WCDMA/cdma2000 PA output monitoring |
| Log Slope | 33mV/dB (typ) - enables precise dB-linear mapping for ADC digitization with minimal calibration overhead |
| RMS Accuracy | ±0.1dB (typ) over WCDMA modulation - ensures consistent power reporting despite varying PAR |
| Temp Error | ±0.4dB over -40°C to +85°C - eliminates need for per-temperature calibration in outdoor base stations |
| Supply Range | 2.5V to 4.2V - compatible with Li-ion battery rails and regulated 2.8V system supplies |
| Shutdown Current | 0.5µA (min) - reduces standby power in TDD or burst-mode transceivers |
| RF Frequency | 800MHz to 2000MHz - supports Cellular (824–960MHz), PCS (1850–1990MHz), and UMTS (1920–2170MHz) bands |
Pinout & Package
The MAX2202EWT+ is housed in a 6-bump wafer-level package (WLP), measuring 1.2mm × 1.2mm × 0.5mm, with bottom-side solder bumps and no leads. Bump pitch is 0.4mm; land pattern follows Maxim Application Note 1891.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | RFIN/ENA | Combined RF input and digital enable - high = active detection, low = shutdown; requires external 50Ω termination for optimal S11 |
| A2, B1 | GND | Dual ground terminals - must connect independently to PCB ground plane via separate vias to minimize noise coupling |
| B2 | FILT | Internal filter node - bypass to GND with 4700pF capacitor to stabilize internal bias and reduce ripple |
| C1 | VCC | Power supply input - requires local 0.1µF X5R/X7R ceramic bypass capacitor placed <1mm from bump |
| C2 | OUT | Analog output voltage proportional to log(input power) - connects to ADC via 10kΩ series resistor + shunt capacitor (4.7nF for WCDMA) |
Key Features
| Feature | Design Value |
|---|---|
| True RMS Detection | Maintains <0.1dB accuracy across WCDMA DPCCH+DPDCH signals regardless of PAR variation - critical for closed-loop PA control |
| Calibrated Log Conformance | ±1.0dB error over 10dB input steps at -4dBm to -1dBm - enables single-point calibration for production test efficiency |
| Integrated Enable Control | ENA pin accepts 1.1V–2.7V logic-high to activate; draws only 0.5µA in shutdown - simplifies power sequencing in multi-PA systems |
| Wideband RF Input | S11 < -9dB achieved with 50Ω + 220pF matching network at 800–2000MHz - minimizes insertion loss in directional coupler paths |
| Temperature-Stable Output | ±0.4dB detection error over full -40°C to +85°C range - eliminates need for external temperature compensation in outdoor small cells |
Applications
| WCDMA Base Station Power Control | cdma2000 Handset Transmit Chain |
|---|---|
|
Use Scenario: Real-time monitoring of PA output power in macrocell BTS using directional coupler sampling. IC Role / Device Role / Timing Role: RMS power detector providing feedback voltage to baseband controller for adaptive PA bias adjustment. Use Value: Enables ±0.4dB power stability over temperature without recalibration, supporting 3GPP-defined ACLR and EVM requirements. |
Use Scenario: Transmit power leveling in dual-mode cdma2000/LTE handsets during handover and channel switching. IC Role / Device Role / Timing Role: Log-conforming detector feeding ADC for closed-loop TX power regulation in burst-mode operation. Use Value: Delivers 33mV/dB slope and <0.1dB RMS accuracy across IS95 reverse link modulations, ensuring FCC-compliant radiated power. |
| HSDPA/HSUPA Mobile Terminal | Small Cell LTE Front-End |
|
Use Scenario: Uplink power management in HSPA+ user equipment supporting 5–10 MHz bandwidths and variable coding schemes. IC Role / Device Role / Timing Role: Wideband RMS detector tracking fast power ramping during HSUPA DPCCH/DPDCH slot transitions. Use Value: Maintains linear dB response across 800–2000MHz with -29dBm sensitivity, enabling accurate power setting for 16-QAM uplink. |
Use Scenario: Output power monitoring in LTE pico/femtocell PA modules where space and thermal constraints limit discrete solutions. IC Role / Device Role / Timing Role: Compact WLP-packaged detector integrated into PA module PCB for real-time backoff control. Use Value: 1.2mm × 1.2mm footprint and 95°C/W θJA allow placement near PA die without thermal derating in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RMS power detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADL5511ACPZ-R7 | Wider frequency range (10MHz–6GHz), higher supply current (12mA), larger 16-pin LFCSP package | Better suited for broadband test equipment and multiband LTE-A CA systems | Select ADL5511ACPZ-R7 when >2GHz coverage or higher dynamic range (>45dB) is required |
| LT5537IMS8#TRPBF | Narrower detection range (-35dBm to -5dBm), lower log slope (25mV/dB), SO-8 package | Optimized for low-power IoT transceivers and sub-GHz ISM band applications | Select LT5537IMS8#TRPBF when cost-sensitive designs prioritize SO-8 compatibility over WCDMA accuracy |
Compared with ADL5511ACPZ-R7 and LT5537IMS8#TRPBF, the MAX2202EWT+ offers the best balance of WCDMA-specific RMS accuracy, ultra-compact WLP footprint, and low-quiescent-current shutdown - making it the preferred choice for space-constrained 3G/4G handset and small-cell front-end designs.
Availability
MAX2202EWT+ is available at Aetrix Electronics and suitable for WCDMA base station power control, cdma2000 handset transmit chain, and LTE small cell front-end applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX2202EWT+ 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and RF ICs for communications, industrial, and consumer applications.
The MAX2202EWT+ belongs to Maxim's RF power detector product line, designed specifically for accurate, temperature-stable RF power measurement in 3G/4G wireless infrastructure and mobile terminal front-ends.
FAQ
What is the RF input frequency range supported by the MAX2202EWT+?
The MAX2202EWT+ supports an RF input frequency range from 800MHz to 2000MHz. This covers the primary cellular bands including Cellular (824–960MHz), PCS (1850–1990MHz), and UMTS (1920–2170MHz). Performance data such as S11, log conformance, and RMS accuracy are specified across this full range, with characterization confirmed at 800MHz and 2000MHz endpoints.
Does the MAX2202EWT+ require external input matching components?
Yes, the MAX2202EWT+ requires external input matching for optimal RF performance. A 50Ω terminating resistor and 220pF series capacitor at the RFIN/ENA bump achieve S11 < -9dB across 800–2000MHz. Without matching, S11 degrades significantly - e.g., -1.77dB at 480MHz - risking reflection-induced power measurement errors and PA instability.
How does the ENA pin function on the MAX2202EWT+?
The ENA pin on the MAX2202EWT+ serves as a combined RF input and digital enable terminal. Driving ENA ≥1.1V activates the detector; driving ENA ≤0.6V places the device in shutdown mode with 0.5µA typical current draw. The pin includes an internal ~50kΩ pull-down to GND, and external bias resistors >1kΩ are recommended to avoid loading the RF source while maintaining logic-level compliance.
What is the log conformance specification for the MAX2202EWT+?
The MAX2202EWT+ exhibits ±1.0dB log conformance error over 10dB input power steps (e.g., from -19dBm to -9dBm), measured at TA = +25°C with WCDMA modulation. This specification is guaranteed across four factory-calibrated points (-29dBm, -19dBm, -7dBm, -1dBm) and ensures predictable voltage-vs-power linearity for ADC-based power control algorithms without complex polynomial correction.
Can the MAX2202EWT+ be used with NCDMA signals?
Yes, the MAX2202EWT+ supports NCDMA signals, though its primary characterization is for WCDMA and cdma2000. The device's true-RMS architecture inherently accommodates NCDMA's PAR profile, and the recommended output RC filter uses 15nF (vs. 4.7nF for WCDMA) to optimize ripple suppression. Detection range and log slope remain fully valid, with RMS accuracy verified across IS95 forward/reverse pilot and traffic channels.
MAX2202EWT+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Frequency:
- 800MHz ~ 2GHz
- RF Type:
- CDMA2000, HSDPA, LTE, W-CDMA
- Input Range:
- -29dBm ~ 0dBm
- Accuracy:
- ±0.4dB
- Voltage - Supply:
- 2.5V ~ 4.2V
- Mounting Type:
- 5.5 mA
- Supplier Device Package:
- Surface Mount
- Current - Supply:
- 6-WLP (1.24x0.84)
MAX2202EWT+ FAQ
1.How can I place an order for MAX2202EWT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX2202EWT+ 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 MAX2202EWT+ reliable?
The price and inventory of MAX2202EWT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX2202EWT+ is usually 5 days.
3.What payment methods are accepted for MAX2202EWT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX2202EWT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX2202EWT+?
MAX2202EWT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX2202EWT+ 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 MAX2202EWT+?
For technical support, including MAX2202EWT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX2202EWT+ requirements.
6.How does Aetrix verify that MAX2202EWT+ is sourced from the original manufacturer or authorized distributors?
All MAX2202EWT+ 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 MAX2202EWT+ meets industry standards.
7.What is the process for return or replacement of MAX2202EWT+?
All MAX2202EWT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX2202EWT+, 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 MAX2202EWT+ part is unused and in its original packaging.
Return procedure for MAX2202EWT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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