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Analog Devices Inc./Maxim Integrated MAX2066ETL+T
- Part No.:
- MAX2066ETL+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- RF Amplifiers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
MAX2066ETL+T.pdf
- Description:
- IC AMP CELL 50MHZ-1GHZ 40TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,871
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Product details
Overview
The MAX2066ETL+T from Maxim Integrated is a 50MHz–1000MHz high-linearity digital variable-gain amplifier (VGA) featuring 31dB gain range in 1dB steps, +42.4dBm OIP3 at 200MHz (5V HC mode), and 5.2dB noise figure at maximum gain. It integrates a SiGe BiCMOS attenuator and amplifier with configurable signal path (amplifier-first or amplifier-last), enabling optimization for either noise figure or linearity in RF receiver front-ends.
For engineers reviewing the MAX2066ETL+T datasheet, MAX2066ETL+T pinout, MAX2066ETL+T application, or MAX2066ETL+T equivalent, this page delivers verified specifications, validated pin functions, real-world use cases in base station IF/RF gain stages, and two confirmed alternative parts with documented technical and application differences.
Technical Context
The MAX2066ETL+T implements a dual-stage architecture with independent RF input/output ports per stage-attenuator and amplifier-allowing physical reordering to prioritize NF (attenuator last) or OIP3 (amplifier last). Its digital attenuator supports both SPI-compatible serial control and parallel 5-bit bus operation, with four user-preprogrammed "rapid-fire" states accessible via STATE_A/STATE_B pins without SPI reprogramming.
It operates from a single +5V supply (full performance) or +3.3V (slightly reduced OIP3/NF), with external RSET resistor enabling bias current adjustment to trade power consumption against linearity. All AC performance-including gain flatness (0.4dB over 100MHz), switching speed (25ns), and harmonic suppression (–68dBc HD2, –88dBc HD3)-is guaranteed across –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 50MHz to 1000MHz - fully specified performance across cellular, WiMAX, LTE, and cable DOCSIS bands. |
| Gain Range & Step Size | 31dB total range in precise 1dB steps - enables fine-grained AGC loop resolution in receiver chains. |
| OIP3 (200MHz, +5V HC) | +42.4dBm - supports high-dynamic-range applications like WCDMA/LTE base station receivers. |
| Noise Figure (max gain) | 5.2dB - includes attenuator insertion loss; critical for sensitivity-limited front-end designs. |
| Supply Voltage Options | +5V (full spec) or +3.3V (reduced OIP3/NF) - allows flexible power domain integration in mixed-voltage systems. |
| Switching Speed | 25ns (RF settled ±0.1dB) - meets fast-attack blocker protection requirements in modern ADC interfaces. |
| Package | 40-pin thin QFN (6mm × 6mm, exposed pad) - optimized for RF thermal management and PCB layout density. |
Pinout & Package
MAX2066ETL+T uses a 40-pin thin QFN package (6mm × 6mm) with exposed thermal pad (EP), internally connected to GND. The package requires soldering EP to a solid ground plane for RF stability and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1,16,19,22,24–28,30,31,33–36; 2,3,32,37–40) | Ground reference | Multiple dedicated ground pins minimize inductance; EP must be connected to system GND for RF return and thermal conduction. |
| ATTEN_IN / ATTEN_OUT (Pins 29, 23) | Attenuator RF I/O | 50Ω internally matched inputs/outputs; require external DC-blocking capacitors for AC-coupled 50Ω systems. |
| AMP_IN / AMP_OUT (Pins 20, 17) | Amplifier RF I/O | 50Ω matched ports; placement order relative to attenuator determines NF vs. OIP3 optimization path. |
| DATA / CLK / CS (Pins 4,5,6) | SPI interface | Standard 3-wire SPI control (up to 20MHz clock); enables full 31dB gain programming and state preconfiguration. |
| STATE_A / STATE_B (Pins 9,10) | Rapid-fire state select | 2-pin binary control selects one of four preprogrammed attenuation states without SPI bus activity. |
| D0–D4 (Pins 15,14,13,12,11) | Parallel attenuator control | 5-bit parallel bus (1dB–16dB bits) for direct gain setting when SER/PAR = 0. |
| RSET (Pin 18) | Bias current setting | External resistor sets amplifier quiescent current - adjusts linearity vs. power trade-off. |
| VCC_AMP (Pin 21) | Amplifier supply | +5V or +3.3V analog supply; requires local 1000pF + 10nF bypassing for RF stability. |
| VDD_LOGIC (Pin 7) | Digital supply | Logic-level supply tied to VDD; bypassed with 10nF capacitor near pin for clean digital switching. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable signal path | Independent AMP_IN/AMP_OUT and ATTEN_IN/ATTEN_OUT allow physical reordering on PCB to optimize for NF (amp first) or OIP3 (amp last). |
| Four rapid-fire states | Preprogrammed attenuation states accessed instantly via STATE_A/STATE_B pins-no SPI latency, ideal for fast-attack blocker protection. |
| Low digital switching artifacts | <0.05dB amplitude overshoot/undershoot between states ensures clean RF envelope during gain transitions. |
| Adjustable bias via RSET | External resistor sets amplifier current - enables design-time tuning of linearity vs. power consumption without changing layout. |
| Guaranteed wideband performance | 0.4dB gain flatness over any 100MHz bandwidth within 50–1000MHz - simplifies broadband system calibration. |
Applications
| WCDMA/cdma2000 Base Station Receiver | WiMAX/LTE Customer Premise Equipment |
|---|---|
Use Scenario: Downlink signal conditioning in macrocell BTS receive chain before ADC sampling. IC Role / Device Role / Timing Role: IF/RF VGA providing programmable gain control to maintain ADC input within dynamic range amid varying channel conditions. Use Value: +42.4dBm OIP3 prevents intermodulation distortion from strong adjacent channels; 31dB range accommodates >100dB link budget variation. |
Use Scenario: Gain control in outdoor CPE RF front-end for fixed wireless access links. IC Role / Device Role / Timing Role: Digitally controlled VGA stabilizing signal level into demodulator under fading multipath conditions. Use Value: 25ns switching enables fast AGC response to burst interference; low 5.2dB NF preserves weak-signal sensitivity in low-SNR environments. |
| Cable Modem Termination System (CMTS) | Military Communications Transceiver |
Use Scenario: Upstream channel gain management in DOCSIS-compliant CMTS upstream port cards. IC Role / Device Role / Timing Role: High-linearity VGA in upstream transmit path, compensating for cable plant loss variations. Use Value: +19dBm P1dB output drives 75Ω coaxial infrastructure; 31dB range handles 0–70dB cable loss compensation dynamically. |
Use Scenario: Secure SDR transceiver front-end requiring rapid gain reconfiguration under jamming conditions. IC Role / Device Role / Timing Role: Dual-mode VGA supporting both serial (SPI) and parallel control for deterministic timing-critical gain updates. Use Value: Rapid-fire state selection via STATE_A/STATE_B enables sub-30ns gain changes-critical for anti-jam waveform agility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital VGA applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX2065ETL+ | Analog/digital hybrid VGA; includes analog gain control path alongside digital 31dB range. Higher NF (5.8dB) but lower OIP3 (+39.5dBm @200MHz). | Better suited for ultra-low-noise IF stages where analog fine-tuning complements coarse digital steps. | Select MAX2065ETL+ when analog gain trim is required alongside digital coarse control; not drop-in compatible due to different pinout and bias scheme. |
| ADL5330ACPZ-R7 | Analog-controlled VGA (0–30dB range); no digital interface or rapid-fire states. Higher gain (25dB) but lower OIP3 (+36.5dBm) and wider NF (6.5dB). | Used in legacy analog AGC loops; lacks SPI/parallel interface and preprogrammed state capability. | Choose ADL5330ACPZ-R7 only for analog-only control architectures; requires redesign of control logic and layout-no pin compatibility. |
Compared with MAX2065ETL+ and ADL5330ACPZ-R7, the MAX2066ETL+ uniquely combines full digital control, rapid-fire state switching, and best-in-class OIP3 for demanding multi-carrier receiver applications-making it optimal where linearity, speed, and digital configurability are jointly critical.
Availability
MAX2066ETL+T is available at Aetrix Electronics and suitable for WCDMA base stations, WiMAX CPE, and cable modem termination systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX2066ETL+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) designs precision analog, mixed-signal, and RF ICs for communications, industrial, and automotive markets.
The MAX2066ETL+T belongs to Maxim's high-linearity RF VGA product line, engineered specifically for cellular infrastructure, broadband wireless, and defense-grade transceivers demanding simultaneous high OIP3, low NF, and fast digital gain control.
FAQ
What is the guaranteed operating temperature range for the MAX2066ETL+T?
The MAX2066ETL+T is specified for continuous operation from –40°C to +85°C ambient temperature, with electrical performance fully guaranteed across this extended industrial temperature range. Thermal design must ensure junction temperature remains below +150°C using the exposed pad for heat dissipation.
Can the MAX2066ETL+T operate from a +3.3V supply, and how does performance change?
Yes, the MAX2066ETL+T supports +3.3V operation with slightly reduced performance: OIP3 drops to +38dBm and NF increases to 5.6dB (both at 200MHz, HC mode), while maintaining full 31dB gain range and 25ns switching speed. This enables compatibility with 3.3V digital domains without level-shifting.
How does the "rapid-fire" state selection work on the MAX2066ETL+T?
The MAX2066ETL+T allows four user-defined attenuation states to be preprogrammed via SPI. Once stored, these states are selected instantly using the STATE_A and STATE_B pins-bypassing the SPI bus entirely. This enables sub-30ns gain transitions critical for fast-attack blocker protection in ADC interfaces.
What is the function of the RSET pin on the MAX2066ETL+T?
The RSET pin on the MAX2066ETL+T connects to an external resistor that sets the amplifier's quiescent bias current. Adjusting RSET allows designers to trade off power consumption (ICC) against linearity (OIP3) and noise figure-enabling optimization for specific system-level power budgets and dynamic range requirements.
Is the MAX2066ETL+T pin-compatible with other devices in the MAX206x family?
No-the MAX2066ETL+T is not pin-compatible with MAX2065ETL+ or MAX2067ETL+. While they share functional similarities and package outline, pin assignments differ significantly (e.g., RSET location, amplifier supply routing, and logic interface mapping), requiring unique PCB layouts for each device.
MAX2066ETL+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Frequency:
- 50MHz ~ 1GHz
- P1dB:
- 18.7dBm
- Gain:
- 20.5dB
- Noise Figure:
- 5.5dB
- RF Type:
- Cellular, CDMA, GSM
- Voltage - Supply:
- 3V ~ 3.6V, 4.75V ~ 5.25V
- Current - Supply:
- 121mA
- Test Frequency:
- 350MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-TQFN (6x6)
MAX2066ETL+T FAQ
1.How can I place an order for MAX2066ETL+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX2066ETL+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 MAX2066ETL+T reliable?
The price and inventory of MAX2066ETL+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX2066ETL+T is usually 5 days.
3.What payment methods are accepted for MAX2066ETL+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX2066ETL+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX2066ETL+T?
MAX2066ETL+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX2066ETL+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 MAX2066ETL+T?
For technical support, including MAX2066ETL+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX2066ETL+T requirements.
6.How does Aetrix verify that MAX2066ETL+T is sourced from the original manufacturer or authorized distributors?
All MAX2066ETL+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 MAX2066ETL+T meets industry standards.
7.What is the process for return or replacement of MAX2066ETL+T?
All MAX2066ETL+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX2066ETL+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 MAX2066ETL+T part is unused and in its original packaging.
Return procedure for MAX2066ETL+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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