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Analog Devices Inc./Maxim Integrated MAX4444ESE+
- Part No.:
- MAX4444ESE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Video Amps and Modules
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4444ESE+.pdf
- Description:
- IC AMP RECEIVER 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
MAX4444ESE+ from Maxim Integrated is an ultra-high-speed, low-distortion differential-to-single-ended line receiver with fixed +2V/V gain, ±5V dual supply operation, 550MHz small-signal bandwidth, 5000V/µs slew rate, and active-high enable pin. It drives 100Ω loads to ±3.7V and delivers <0.07% differential gain / 0.05° phase error for precision video signal conditioning in broadcast equipment.
For engineers reviewing the MAX4444ESE+ datasheet, MAX4444ESE+ pinout, MAX4444ESE+ application, or MAX4444ESE+ equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The MAX4444ESE+ uses a three-op-amp instrumentation amplifier architecture with symmetrical differential inputs (IN+, IN−) and single-ended output (OUT), optimized for high-fidelity signal recovery from twisted-pair or coaxial sources. Its current-feedback topology enables 550MHz bandwidth while maintaining 5000V/µs slew rate and −60dB SFDR at 5MHz.
It features internally fixed +2V/V closed-loop gain, rail-to-rail output swing into 100Ω (±3.7V), and low-power disable mode reducing quiescent current to 3.5mA. Input common-mode range spans −2.9V to +2.9V, CMRR is 55dB, and PSRR is 70dB - all specified across −40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 550MHz – supports baseband video up to 1080p60 without attenuation. |
| Slew Rate | 5000V/µs – preserves fast edge integrity in pulse and digital video signals. |
| Closed-Loop Gain | +2V/V (fixed) – eliminates external gain-setting resistor, simplifying layout and calibration. |
| Differential Gain/Phase Error | 0.07%/0.05° (NTSC, RL = 150Ω) – meets broadcast-grade color fidelity requirements. |
| Output Voltage Swing | ±3.7V into 100Ω – directly interfaces with ADCs and downstream analog stages requiring >7Vpp swing. |
| Enable Function | Active-high EN pin – reduces IQ to 3.5mA during standby, enabling power-gated system architectures. |
| Input Noise Density | 25nV/√Hz at 100kHz – minimizes added noise in low-level RF and medical sensor front-ends. |
Pinout & Package
MAX4444ESE+ is housed in a 16-pin narrow SO (SOIC-N) package with exposed pad thermal enhancement. Pin 16 is GND; pins 7, 8, 11–14 are VEE (−5V); pins 1 and 2 are VCC (+5V); pin 15 is OUT; pin 10 is REF (mid-supply reference); pin 9 is EN (active-high enable); pins 3 and 6 are IN− and IN+, respectively; pins 4 and 5 are no-connect (N.C.) terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | VCC | +5V positive supply input; requires local 0.1µF ceramic bypass to GND for stability. |
| 3 | IN− | Inverting differential input; matched impedance path critical for CMRR performance. |
| 4, 5 | N.C. | No internal connection; tie to GND to minimize parasitic coupling in high-frequency layouts. |
| 6 | IN+ | Noninverting differential input; forms balanced pair with IN− for common-mode rejection. |
| 7, 8, 11–14 | VEE | −5V negative supply input; multiple pins reduce ground bounce and improve PSRR. |
| 9 | EN | Active-high enable control; logic-low disables output and cuts IQ to 3.5mA. |
| 10 | REF | Reference input; connect to midpoint of ±5V supplies to set output DC bias point. |
| 15 | OUT | Single-ended output; capable of sourcing/sinking 120mA into 100Ω load. |
| 16 | GND | Analog ground reference; must be tied to system ground plane with low-inductance path. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed +2V/V gain | Eliminates external gain-setting resistors and associated tolerance drift, ensuring stable video gain over temperature. |
| 550MHz bandwidth | Supports full HD (1080p60) and SDI-compatible baseband video without filtering-induced timing skew. |
| 5000V/µs slew rate | Maintains sub-nanosecond rise/fall times (<12ns) for clean pulse transmission in test instrumentation. |
| 0.07%/0.05° DG/DP | Meets SMPTE RP 168 and ITU-R BT.601 broadcast standards for color fidelity in professional video systems. |
| Low-power enable mode | Reduces supply current from 55mA to 3.5mA, enabling dynamic power management in multi-channel video routers. |
Applications
| Broadcast Video Signal Conditioning | High-Speed Data Acquisition Front-End |
|---|---|
|
Use Scenario: Converting differential RGBHV or YPbPr signals from camera head cables to single-ended format for digitization in studio switchers. IC Role / Device Role / Timing Role: Differential-to-single-ended line receiver with fixed gain and ultra-low distortion, preserving timing alignment between color channels. Use Value: Enables direct interface to 12-bit/100MSPS ADCs without additional amplification or level-shifting, reducing BOM count and board area. |
Use Scenario: Receiving high-bandwidth sensor outputs (e.g., radar IF, ultrasound beamformer) over shielded twisted pair in industrial DAQ systems. IC Role / Device Role / Timing Role: High-fidelity analog front-end buffer with 550MHz bandwidth and 5000V/µs slew rate for preserving transient fidelity. Use Value: Delivers <12ns rise time and −60dB SFDR at 5MHz, supporting accurate time-of-flight and spectral analysis measurements. |
| Medical Imaging Signal Chain | RF Test Equipment Intermediate Stage |
|
Use Scenario: Amplifying low-amplitude differential outputs from MRI gradient coil sensors before ADC sampling. IC Role / Device Role / Timing Role: Low-noise (25nV/√Hz), low-distortion receiver with wide input CM range (±2.9V) for handling variable sensor offsets. Use Value: Maintains SNR >70dB across 100kHz–10MHz band, critical for detecting microvolt-level physiological signals. |
Use Scenario: Buffering and converting differential IF signals (e.g., 70MHz, 140MHz) in spectrum analyzers and vector signal analyzers. IC Role / Device Role / Timing Role: Wideband intermediate-stage receiver with high PSRR (70dB) and CMRR (55dB) to reject supply and common-mode noise. Use Value: Supports spurious-free dynamic range >60dBc at 5MHz, enabling accurate harmonic and intermodulation measurement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential-to-single-ended receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4445ESE+ | Externally programmable gain (AV ≥ +2V/V via RG resistor); same pinout, bandwidth, and slew rate. | Used where variable gain is required (e.g., adaptive cable loss compensation), not fixed-gain video routing. | Select MAX4445ESE+ only if gain flexibility is needed; MAX4444ESE+ offers lower component count and tighter gain tolerance. |
| THS4561DR | Single-supply (2.7–5.4V), 1.8GHz GBW, but lower output drive (±35mA) and higher distortion (−52dB SFDR @ 5MHz). | Suitable for portable, low-voltage systems but not broadcast video or high-current coaxial driving. | Choose THS4561DR for battery-powered instrumentation; MAX4444ESE+ remains preferred for high-fidelity, high-drive video and RF applications. |
Compared with MAX4445ESE+, the MAX4444ESE+ saves board space and cost by eliminating gain-setting resistors while delivering identical bandwidth and distortion performance. Versus THS4561DR, it provides 3.4× higher output current and 8dB better SFDR - essential for driving 75Ω coax and meeting broadcast video specifications.
Availability
MAX4444ESE+ is available at Aetrix Electronics and suitable for broadcast video infrastructure, high-speed data acquisition systems, and medical imaging equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX4444ESE+ 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 high-performance analog, mixed-signal, and power management ICs for demanding applications in communications, industrial, and consumer markets.
The MAX4444ESE+ belongs to Maxim's ultra-high-speed amplifier product line, engineered specifically for differential video and RF signal conditioning where bandwidth, linearity, and timing integrity are critical.
FAQ
What is the operating supply voltage range for the MAX4444ESE+?
The MAX4444ESE+ operates from ±4.5V to ±5.5V dual supplies, with typical performance characterized at ±5V. It is not rated for single-supply operation. Supply voltages outside this range may cause permanent damage or degraded AC performance, including reduced bandwidth and increased distortion. The MAX4444ESE+ must be powered with properly decoupled ±5V rails using 0.1µF ceramic capacitors per VCC and VEE pin group.
Does the MAX4444ESE+ require external gain-setting components?
No, the MAX4444ESE+ has an internally fixed closed-loop gain of +2V/V and requires no external resistors. This distinguishes it from the pin-compatible MAX4445ESE+, which uses external RG resistors for gain configuration. The fixed gain simplifies PCB layout, improves temperature stability (gain-error drift is only 0.003%/°C), and eliminates resistor tolerance-induced gain errors - making the MAX4444ESE+ ideal for calibrated video signal paths.
How does the enable (EN) pin function on the MAX4444ESE+?
The EN pin on the MAX4444ESE+ is active-high: applying ≥2V (typically VCC = +5V) enables normal operation with 55mA quiescent current; pulling EN to GND disables the amplifier, reducing IQ to 3.5mA and raising output impedance to ~1.8kΩ. Enable/disable transition times are 80ns (tSHDN(ON)) and 200ns (tSHDN(OFF)), supporting high-speed power gating in multi-channel video systems without introducing switching transients into adjacent channels.
Can the MAX4444ESE+ drive 75Ω coaxial cable directly?
Yes, the MAX4444ESE+ can directly drive 75Ω coaxial cable: its 120mA output current capability and ±3.7V swing into 100Ω translate to >100mA into 75Ω with minimal droop. For optimal return loss and stability, use series isolation resistors (e.g., 10–22Ω) at the output per Maxim's AN6004 guidelines. The MAX4444ESE+'s high PSRR (70dB) and CMRR (55dB) also suppress supply- and ground-borne noise that could degrade signal integrity over long coax runs.
What is the differential input voltage range specification for the MAX4444ESE+?
The MAX4444ESE+ supports a differential input voltage range (VDIFF) of ±3.4V maximum under normal operation, with guaranteed linear operation up to ±3.3V. Its input common-mode voltage range is −2.9V to +2.9V, allowing compatibility with standard LVDS, CML, and transformer-coupled differential sources. Exceeding ±3.4V differential input risks clipping or increased distortion; for wider-range inputs, external attenuation or clamping networks must be used - the MAX4444ESE+ itself does not include overvoltage protection circuitry.
MAX4444ESE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Applications:
- Receiver
- Output Type:
- -
- Number of Circuits:
- 1
- -3db Bandwidth:
- 550 MHz
- Slew Rate:
- 5000V/µs
- Current - Supply:
- 41 mA
- Current - Output / Channel:
- 120 mA
- Voltage - Supply, Single/Dual (±):
- ±4.5V ~ 5.5V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-SOIC
MAX4444ESE+ FAQ
1.How can I place an order for MAX4444ESE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4444ESE+ 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 MAX4444ESE+ reliable?
The price and inventory of MAX4444ESE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4444ESE+ is usually 5 days.
3.What payment methods are accepted for MAX4444ESE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4444ESE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4444ESE+?
MAX4444ESE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4444ESE+ 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 MAX4444ESE+?
For technical support, including MAX4444ESE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4444ESE+ requirements.
6.How does Aetrix verify that MAX4444ESE+ is sourced from the original manufacturer or authorized distributors?
All MAX4444ESE+ 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 MAX4444ESE+ meets industry standards.
7.What is the process for return or replacement of MAX4444ESE+?
All MAX4444ESE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4444ESE+, 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 MAX4444ESE+ part is unused and in its original packaging.
Return procedure for MAX4444ESE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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