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Analog Devices Inc./Maxim Integrated MAX4001EBL-T
- Part No.:
- MAX4001EBL-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- RF Detectors
- Package:
- 8-WFBGA, CSPBGA
- Datasheet:
-
MAX4001EBL-T.pdf
- Description:
- RF-DETECTING CONTROLLER
- Quantity:
- Payment:
- Shipping:
Inventory:11,210
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Product details
Overview
MAX4001EBL-T from Maxim Integrated is a low-power, 8-bump UCSP-packaged logarithmic amplifier designed for RF power amplifier (PA) control in 100MHz–2.5GHz wireless transmitters. It delivers a -48dBV to -3dBV input voltage range (-35dBm to +10dBm at 50Ω), 25mV/dB typical logarithmic slope, ±1dB log conformance over 45dB dynamic range, and operates from -40°C to +85°C - enabling precise, temperature-stable PA gain control in cellular handsets and TSSI systems.
For engineers reviewing the MAX4001EBL-T datasheet, MAX4001EBL-T pinout, MAX4001EBL-T application, or MAX4001EBL-T equivalent, this device serves as a high-frequency RF-detecting controller with integrated set-point interface, fast 70ns response, 10mA output sourcing, and shutdown current ≤30µA - critical for battery-powered terminal devices requiring accurate RSSI and closed-loop transmitter power regulation.
Technical Context
The MAX4001EBL-T implements a five-stage cascaded detector architecture (four 10dB gain stages + pre-detector), generating a summed logarithmic current proportional to RF input power. Its gm-stage-based output buffer drives the PA gain-control pin directly, with SET pin voltage defining the target output power level via linear-in-dB transfer function.
It features internal resistive RF input coupling to VCC (2kΩ DC resistance), requires an external AC-coupling capacitor at RFIN, and uses CLPF pin with external capacitor to set control-loop bandwidth. Power-on delay holds OUT low for ~5µs to prevent glitches during wake-up from shutdown mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 100MHz to 2.5GHz - supports GSM, CDMA, TDMA, and UMTS bands without external tuning. |
| Input Voltage Range | -48dBV to -3dBV - enables direct interfacing with PA coupler outputs without external attenuators. |
| Logarithmic Slope | 25mV/dB (typ at 100MHz–2.5GHz) - provides predictable, linear-in-dB scaling for accurate power set-point translation. |
| Dynamic Range | 45dB (±1dB error band) - ensures reliable measurement across full PA output swing in handset and module applications. |
| Supply Current | 5.9mA at 5.5V - enables low-power operation in portable RF front-ends with minimal thermal impact. |
| Shutdown Current | ≤30µA - preserves battery life during idle or sleep modes in mobile terminals. |
| Output Drive | 10mA sourcing capability - directly controls standard PA gain pins without external buffering. |
Pinout & Package
MAX4001EBL-T is housed in an 8-bump UCSP (Ultra-Chip-Scale Package), 1.5mm × 1.5mm, 0.5mm pitch, with exposed paddle for thermal dissipation. Pin 6 is No Connection (N.C.).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RFIN | RF Input | Accepts coupled RF signal from PA output; internally resistively biased to VCC (2kΩ). |
| SHDN | Shutdown Control | Active-low enable: <0.8V disables device, >1.8V enables; includes 5µs power-on delay. |
| SET | Set-Point Reference | Analog input defining target PA output power; voltage maps linearly to dB input via log slope/intercept. |
| CLPF | Control Loop Filter | Connect external capacitor to GND to set dominant pole and stabilize PA feedback loop bandwidth. |
| GND | Ground Reference | Signal and power ground; connects to exposed paddle for thermal and electrical integrity. |
| N.C. | No Connection | Unbonded pad - must be left floating or grounded per layout guidelines; no internal connection. |
| OUT | Controller Output | Buffered gm-stage output driving PA gain-control pin; sources up to 10mA with rail-to-rail swing. |
| VCC | Supply Voltage | 2.7V–5.5V operation; decoupling capacitor required near pin for RF stability. |
Key Features
| Feature | Design Value |
|---|---|
| Complete RF-Detecting PA Controller | Integrates detector chain, gm-stage, output buffer, and shutdown logic - eliminates discrete control-loop components. |
| Three Input Ranges (Family) | MAX4001 variant supports -35dBm to +10dBm at 50Ω - optimized for mid-power PAs without external attenuation. |
| Temperature-Stable Log Response | ±1dB conformance maintained from -40°C to +85°C - enables robust operation in uncontrolled environments. |
| Fast Transient Response | 70ns for 10dB step - supports rapid PA power adjustment in burst-mode or packet-based transmission. |
| Low-Power Shutdown Mode | ≤30µA shutdown current - extends battery life in always-on mobile and IoT terminal devices. |
Applications
| Cellular Handset PA Control | TSSI for Wireless Terminals |
|---|---|
|
Use Scenario: Closed-loop transmit power control in GSM/CDMA/UMTS handsets using directional coupler feedback. IC Role / Device Role / Timing Role: Logarithmic detector and analog controller - converts coupled RF power to voltage-driven PA gain command. Use Value: Enables compliant output power across frequency bands and temperature without calibration tables or digital compensation. |
Use Scenario: Transmit Signal Strength Indication in LTE femtocells and Wi-Fi client modules. IC Role / Device Role / Timing Role: RF power sensing element feeding baseband processor with linear-in-dB voltage representing TX output level. Use Value: Provides real-time, wide-dynamic-range RSSI with <1dB error - critical for adaptive modulation and link budget management. |
| RSSI in Fiber Optic Modules | Transmitter Power Measurement |
|
Use Scenario: Monitoring optical transmitter drive level in SFP+ and XFP pluggable transceivers. IC Role / Device Role / Timing Role: Analog RF detector measuring RF-modulated laser driver output before optical conversion. Use Value: Delivers stable, frequency-independent power readout across 100MHz–2.5GHz - supports diagnostics and compliance testing. |
Use Scenario: Production-line RF power verification of PA assemblies prior to integration. IC Role / Device Role / Timing Role: Precision logarithmic converter translating RF input into calibrated DC voltage for test instrumentation. Use Value: Eliminates need for external RMS-to-DC converters or spectrum analyzers in automated test fixtures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF-detecting controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4001EUA | Same die, 8-pin µMAX package (3mm × 3mm); higher thermal resistance; no exposed paddle. | Preferred for prototyping or PCBs with through-hole-compatible footprints; less suitable for high-power density layouts. | Select MAX4001EUA when board space allows larger footprint and thermal constraints permit higher junction temperature rise. |
| ADL5513ACPZ-R7 | 2.5GHz log amp with 65dB range, 3.3V-only supply, 2.5mW quiescent power; different pinout and SET interface behavior. | Better suited for wide-dynamic-range instrumentation; lacks integrated shutdown delay and UCSP thermal performance. | Choose ADL5513ACPZ-R7 only if >50dB dynamic range is required and system can accommodate revised control-loop timing and layout. |
Compared with MAX4001EUA, the MAX4001EBL-T offers superior thermal performance and 40% smaller footprint; versus ADL5513ACPZ-R7, it trades extended range for lower power, integrated shutdown sequencing, and proven handset-level reliability in compact UCSP form.
Availability
MAX4001EBL-T is available at Aetrix Electronics and suitable for cellular handset PA control, TSSI implementation, and fiber-optic transmitter monitoring requiring stable component supply, consistent UCSP packaging, and guaranteed -40°C to +85°C operation.
Supply support for MAX4001EBL-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 MAX4000/MAX4001/MAX4002 family was engineered specifically for RF power amplifier control in battery-powered wireless terminals - delivering precision logarithmic detection, low power, and small-footprint integration in demanding RF environments.
FAQ
What is the primary function of the MAX4001EBL-T in a wireless transmitter?
The MAX4001EBL-T functions as an RF-detecting power controller that measures coupled PA output power and generates a proportional analog voltage on its OUT pin to regulate PA gain. In the MAX4001EBL-T, this closed-loop control operates across 100MHz–2.5GHz with ±1dB accuracy, enabling compliant transmit power in cellular handsets and terminal devices without digital intervention.
Does the MAX4001EBL-T require an external AC-coupling capacitor at the RFIN pin?
Yes - unlike the MAX4000 variant, the MAX4001EBL-T uses internal resistive coupling to VCC and requires an external AC-coupling capacitor between the RF source and RFIN. This capacitor blocks DC offset while preserving RF signal integrity; typical values range from 100pF to 1nF depending on low-frequency cutoff requirements.
How does the SET pin determine output power in the MAX4001EBL-T control loop?
The SET pin voltage establishes the target RF input level via the MAX4001EBL-T's logarithmic transfer function: RFIN(dBm) = (SET − IP) / Slope. For example, applying 1.0V to SET with a 25mV/dB slope and -45dBm intercept yields ~−5dBm target input - which corresponds to the PA output power level enforced by the feedback loop involving the MAX4001EBL-T.
What is the purpose of the CLPF pin on the MAX4001EBL-T?
The CLPF pin connects to an external capacitor to ground, forming a dominant-pole lowpass filter that sets the bandwidth of the PA control loop. This prevents oscillation and ensures stable closed-loop response; typical values range from 100pF to 10nF, with higher capacitance reducing bandwidth and improving stability at the cost of transient speed.
Can the MAX4001EBL-T operate from a 3.3V supply, and what is its typical supply current?
Yes - the MAX4001EBL-T operates from 2.7V to 5.5V, and at 3.3V supply it draws approximately 4.2mA typical supply current (scaling linearly with voltage). This low quiescent draw supports energy-efficient design in portable RF systems where the MAX4001EBL-T remains active during transmission bursts.
MAX4001EBL-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Frequency:
- 100MHz ~ 2.5GHz
- RF Type:
- CDMA, Cellular, GPRS, GSM, TDMA
- Input Range:
- -35dBm ~ 10dBm
- Accuracy:
- -
- Voltage - Supply:
- 2.7V ~ 5.5V
- Mounting Type:
- 5.9 mA
- Supplier Device Package:
- Surface Mount
- Current - Supply:
- 8-UCSP (1.52x1.52)
MAX4001EBL-T FAQ
1.How can I place an order for MAX4001EBL-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4001EBL-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 MAX4001EBL-T reliable?
The price and inventory of MAX4001EBL-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4001EBL-T is usually 5 days.
3.What payment methods are accepted for MAX4001EBL-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4001EBL-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4001EBL-T?
MAX4001EBL-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4001EBL-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 MAX4001EBL-T?
For technical support, including MAX4001EBL-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4001EBL-T requirements.
6.How does Aetrix verify that MAX4001EBL-T is sourced from the original manufacturer or authorized distributors?
All MAX4001EBL-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 MAX4001EBL-T meets industry standards.
7.What is the process for return or replacement of MAX4001EBL-T?
All MAX4001EBL-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4001EBL-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 MAX4001EBL-T part is unused and in its original packaging.
Return procedure for MAX4001EBL-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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