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Analog Devices Inc./Maxim Integrated MAX2203EWT+T
- Part No.:
- MAX2203EWT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- RF Detectors
- Package:
- 6-WFBGA, WLBGA
- Datasheet:
-
MAX2203EWT+T.pdf
- Description:
- IC RF DETECT 800MHZ-2GHZ 6WLP
- Quantity:
- Payment:
- Shipping:
Inventory:3,655
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Product details
Overview
The MAX2203EWT+T from Maxim Integrated is an RMS power detector IC for RF power monitoring in cellular transceivers, operating from 800MHz to 2.0GHz with -24dBm to +3dBm detection range, 35mV/dB log slope (typ), and ±0.4dB temperature-induced error over -40°C to +85°C. It delivers stable output voltage independent of input signal peak-to-average ratio and is used in WCDMA/cdma2000 baseband power control loops.
For engineers reviewing the MAX2203EWT+T datasheet, MAX2203EWT+T pinout, MAX2203EWT+T application, or MAX2203EWT+T equivalent, key selection criteria include its 6-bump WLP package footprint, ENA-controlled shutdown capability, RMS accuracy under WCDMA modulation, FILT node filtering requirement, and single-supply operation from 2.5V to 4.2V.
Technical Context
The MAX2203EWT+T implements a true-RMS detection architecture optimized for wideband CDMA signals, maintaining 0.1dB (typ) RMS accuracy across WCDMA modulation changes without requiring external calibration. Its internal BiCMOS process enables high-frequency RF input handling while supporting logic-level enable control via the RFIN/ENA dual-function terminal.
It operates as a voltage-output logarithmic detector where output voltage varies linearly with input power in dB - not volts - enabling direct interfacing with ADCs in closed-loop transmit power control systems. The FILT pin provides access to an internal filtering node requiring external capacitor bypassing to suppress ripple and improve settling time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Detection Range | -24dBm to +3dBm input power - covers full WCDMA/cdma2000 uplink transmit power envelope |
| Log Slope | 35mV/dB (typ) - enables precise 1dB resolution power measurement with standard 12-bit ADC |
| RMS Accuracy | 0.1dB (typ) under WCDMA modulation - ensures accurate average power tracking despite high PAR signals |
| Temp Error | ±0.4dB over -40°C to +85°C - eliminates need for system-level temperature compensation in portable designs |
| Supply Range | +2.5V to +4.2V - compatible with Li-ion battery voltage swing and regulated 2.8V/3.3V rails |
| Shutdown Current | 0.5µA to 10µA - supports low-power sleep modes in battery-powered HSDPA/HSUPA modules |
| RF Frequency | 800MHz to 2000MHz - covers Cellular (824–960MHz), PCS (1850–1990MHz), and UMTS (1920–2170MHz) bands |
Pinout & Package
The MAX2203EWT+T is housed in a 6-bump wafer-level package (WLP) measuring 1.5mm × 1.1mm × 0.6mm, with solder bumps on the bottom side and no leads. This ultra-compact package supports high-density RF front-end layouts and requires controlled-impedance PCB routing and tight thermal via placement at ground pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | RFIN/ENA | Combined RF input and digital enable - high logic (>1.1V) activates detector; low (<0.6V) forces shutdown mode |
| A2, B1 | GND | Dual ground terminals - must connect independently to low-impedance PCB ground plane with dedicated vias |
| B2 | FILT | Internal filter node - requires external capacitor (e.g., 220pF for WCDMA) placed within 0.5mm of bump |
| C1 | VCC | Power supply input - bypass with 0.1µF X5R/X7R ceramic capacitor directly adjacent to bump |
| C2 | OUT | Analog voltage output - connects to ADC input; requires RC lowpass filter (e.g., 10kΩ + 4700pF) per typical circuit |
Key Features
| Feature | Design Value |
|---|---|
| True-RMS Detection | Maintains 0.1dB accuracy across WCDMA DPCCH+DPDCH waveforms regardless of peak-to-average ratio (PAR up to 9.8dB) |
| Integrated Enable Control | RFIN/ENA dual-function pin reduces component count and enables fast (<100µs) power cycling in TDD systems |
| Temperature-Stable Log Response | ±0.4dB error over full industrial range eliminates need for lookup-table correction in firmware |
| Low-Voltage Single-Supply Operation | 2.5V–4.2V supply supports direct connection to battery or LDO without level-shifting circuitry |
| Ultra-Small WLP Footprint | 1.5mm × 1.1mm area saves >60% board space vs. comparable SOT-23 solutions in multi-band RF modules |
Applications
| WCDMA Base Station Transceiver | cdma2000 Mobile Handset PA Control |
|---|---|
Use Scenario: Real-time uplink transmit power monitoring in femtocell and picocell base stations using dual-band directional couplers. IC Role / Device Role / Timing Role: RMS power detector providing analog feedback voltage to FPGA-based closed-loop power controller with <100µs response. Use Value: Enables compliance with 3GPP TS 25.104 mask requirements by maintaining ±0.5dB transmit power tolerance across temperature and battery voltage variation. |
Use Scenario: Transmit power calibration and dynamic range compression in cdma2000 mobile handset power amplifier modules. IC Role / Device Role / Timing Role: Analog front-end detector feeding ADC in baseband processor for adaptive PA bias control during EVDO session handoffs. Use Value: Delivers 0.1dB RMS accuracy under IS95 reverse-link modulation, reducing PA current consumption by up to 18% versus diode-detector alternatives. |
| HSDPA User Equipment | HSUPA Mobile Hotspot Module |
Use Scenario: Downlink power sensing in HSDPA-capable USB dongles and embedded LTE/WCDMA modems. IC Role / Device Role / Timing Role: Detector output routed to microcontroller ADC for real-time RSSI estimation and link adaptation decisions. Use Value: Linear-in-dB response allows direct dBm calculation in firmware without polynomial fitting, cutting processing overhead by ~35%. |
Use Scenario: Uplink power stabilization in 3G mobile hotspot devices supporting concurrent voice/data sessions. IC Role / Device Role / Timing Role: Dual-path RMS detector (with external switch) monitoring both primary and diversity antenna paths for MIMO transmit power balancing. Use Value: 6-bump WLP package enables co-location with couplers on compact 4-layer PCBs, minimizing trace loss and phase skew between paths. |
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 bandwidth (10MHz–6GHz), higher supply current (12mA), larger 8-lead LFCSP package | Better suited for broadband test equipment; less optimal for space-constrained mobile handsets | Select when frequency coverage beyond 2GHz or higher dynamic range (-35dBm to +15dBm) is required |
| LT5537EMS#TRPBF | Narrower bandwidth (10MHz–1GHz), lower log slope (25mV/dB), ±1.0dB temp error, MSOP-8 package | Targeted at GSM/EDGE infrastructure; insufficient accuracy for WCDMA PAR compensation | Choose only for legacy 2G-only designs where cost sensitivity outweighs RMS accuracy needs |
Compared with ADL5511ACPZ-R7 and LT5537EMS#TRPBF, the MAX2203EWT+T uniquely balances WCDMA-specific RMS accuracy, ultra-small WLP footprint, and battery-friendly supply current - making it the preferred choice for next-generation 3G mobile RF front ends where board area and modulation fidelity are critical.
Availability
The MAX2203EWT+T is available at Aetrix Electronics and suitable for WCDMA base station transceivers, cdma2000 mobile handset PA control, and HSDPA/HSUPA user equipment requiring stable component supply, consistent parametric performance, and RoHS-compliant packaging.
Supply support for MAX2203EWT+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 ICs for communications, computing, and industrial applications.
The MAX2203EWT+T belongs to Maxim's RF power detector product line, engineered specifically for accurate, temperature-stable RMS power measurement in 3G cellular infrastructure and mobile终端 equipment operating under high-PAR modulation schemes.
FAQ
What is the RF input frequency range supported by the MAX2203EWT+T?
The MAX2203EWT+T supports an RF input frequency range from 800MHz to 2000MHz. This covers the full Cellular (824–960MHz), PCS (1850–1990MHz), and UMTS (1920–2170MHz) bands. Performance data in the datasheet confirms guaranteed operation at both 800MHz and 2000MHz across the full temperature range, with typical log conformance maintained within ±1.3dB for 10dB input steps.
How does the MAX2203EWT+T handle high peak-to-average ratio (PAR) signals like WCDMA?
The MAX2203EWT+T delivers 0.1dB (typ) RMS accuracy under WCDMA modulation (DPCCH + 1DPDCH), even with PAR up to 6.2dB at 0.1% CCDF probability. Its true-RMS architecture rejects waveform-dependent errors that affect diode-based detectors, ensuring consistent output voltage regardless of signal crest factor - a critical requirement for accurate closed-loop transmit power control.
What is the function of the FILT pin on the MAX2203EWT+T?
The FILT pin on the MAX2203EWT+T is an internal intermediate filtering node requiring external capacitor bypassing. Placing a capacitor (e.g., 220pF for WCDMA) directly adjacent to the bump stabilizes the internal bias network, reduces output ripple, and improves settling time after power-on or input power transients. Omitting this capacitor degrades log conformance and increases RMS error.
Can the MAX2203EWT+T be powered directly from a Li-ion battery?
Yes, the MAX2203EWT+T operates from a single supply of +2.5V to +4.2V, matching the nominal discharge curve of a single-cell Li-ion battery (4.2V fully charged → ~2.7V cutoff). Its 5mA to 8mA supply current and sub-10µA shutdown current make it suitable for direct battery connection without regulation - provided VCC is bypassed with a 0.1µF X5R/X7R capacitor per the typical operating circuit.
Is the MAX2203EWT+T pin-compatible with other Maxim power detectors like the MAX2016?
No, the MAX2203EWT+T is not pin-compatible with the MAX2016 or other Maxim power detectors. It uses a unique 6-bump WLP layout with integrated RFIN/ENA functionality, whereas the MAX2016 is an 8-pin µMAX device with separate RF input and enable pins. PCB redesign and layout revision are required when substituting between these families due to differing pin count, function mapping, and package geometry.
MAX2203EWT+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:
- W-CDMA
- Input Range:
- -24dBm ~ 3dBm
- Accuracy:
- ±0.4dB
- Voltage - Supply:
- 2.5V ~ 4.2V
- Mounting Type:
- 5 mA
- Supplier Device Package:
- Surface Mount
- Current - Supply:
- 6-WLP (1.24x0.84)
MAX2203EWT+T FAQ
1.How can I place an order for MAX2203EWT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX2203EWT+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 MAX2203EWT+T reliable?
The price and inventory of MAX2203EWT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX2203EWT+T is usually 5 days.
3.What payment methods are accepted for MAX2203EWT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX2203EWT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX2203EWT+T?
MAX2203EWT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX2203EWT+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 MAX2203EWT+T?
For technical support, including MAX2203EWT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX2203EWT+T requirements.
6.How does Aetrix verify that MAX2203EWT+T is sourced from the original manufacturer or authorized distributors?
All MAX2203EWT+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 MAX2203EWT+T meets industry standards.
7.What is the process for return or replacement of MAX2203EWT+T?
All MAX2203EWT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX2203EWT+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 MAX2203EWT+T part is unused and in its original packaging.
Return procedure for MAX2203EWT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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