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Analog Devices Inc./Maxim Integrated MAX4444ESE+T
- Part No.:
- MAX4444ESE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Video Amps and Modules
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4444ESE+T.pdf
- Description:
- IC AMP RECEIVER 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,507
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Product details
Overview
MAX4444ESE+T from Maxim Integrated is an ultra-high-speed, low-distortion differential-to-single-ended line receiver with internally 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 infrastructure.
For engineers reviewing the MAX4444ESE+T datasheet, MAX4444ESE+T pinout, MAX4444ESE+T application, or MAX4444ESE+T 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 and layout implications.
Technical Context
The MAX4444ESE+T uses a three-op-amp instrumentation amplifier architecture with symmetrical differential inputs (IN+, IN−) and single-ended output (OUT), optimized for high-fidelity signal reconstruction. Its current-feedback topology enables 550MHz −3dB bandwidth while maintaining 5000V/µs slew rate and −60dB SFDR at 5MHz.
It features a dedicated reference input (REF) tied to supply midpoint, active-high enable (EN) that reduces quiescent current to 3.5mA in shutdown, and internal gain-setting (no external RG required). Input common-mode range spans −2.9V to +2.9V, and output swing reaches ±3.7V into 100Ω with ±5V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 550MHz −3dB - supports full HD/3G-SDI baseband video and RF IF sampling without attenuation |
| Slew Rate | 5000V/µs - preserves fast edge integrity in pulse-based instrumentation and data acquisition |
| Differential Gain/Phase Error | 0.07%/0.05° at NTSC - meets broadcast-grade video fidelity requirements |
| Input Noise Voltage Density | 25nV/√Hz at 100kHz - minimizes added noise in low-level analog signal chains |
| Enable Function | Active-high EN pin - allows synchronous power gating in multi-channel systems with <80ns enable time |
| Output Drive Capability | ±3.7V into 100Ω - directly interfaces with ADC drivers and coaxial transmission lines |
| Supply Range | ±4.5V to ±5.5V - compatible with standard ±5V analog rails and tolerant of 10% variation |
Pinout & Package
MAX4444ESE+T is housed in a 16-pin narrow SO (SOIC-N) package with exposed pad not present; requires 0.1µF ceramic bypass capacitors on VCC and VEE pins per high-frequency layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | VCC | Positive supply input - must be bypassed to GND with 0.1µF capacitor for stable high-frequency operation |
| 3 | IN− | Inverting differential input - matched impedance path critical for CMRR >55dB up to 10MHz |
| 4, 5 | N.C. | No internal connection - tie to GND to minimize parasitic coupling in high-speed layouts |
| 6 | IN+ | Noninverting differential input - forms balanced pair with IN−; common-mode range −2.9V to +2.9V |
| 7, 8, 11–14 | VEE | Negative supply input - shared ground-return path; bypass individually with 0.1µF capacitor |
| 9 | EN | Active-high enable - logic high ≥2V enables amplifier; low disables output and reduces IQ to 3.5mA |
| 10 | REF | Reference input - connect to supply midpoint (0V) to set output DC bias point for AC-coupled systems |
| 15 | OUT | Single-ended output - capable of ±3.7V swing into 100Ω; ZOUT = 0.7Ω at 10MHz |
| 16 | GND | Analog ground - primary return for REF, bypass caps, and signal paths; separate from digital ground |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables 550MHz bandwidth without sacrificing slew rate or stability at AV = +2V/V |
| Internally fixed +2V/V gain | Eliminates external gain-setting resistors and associated layout sensitivity in production designs |
| Low-power enable mode | Reduces quiescent current from 41mA to 3.5mA with <80ns enable time - ideal for burst-mode video processing |
| Ultra-low distortion | −60dB SFDR at 5MHz ensures minimal harmonic contamination in composite video and IF signals |
| Broadcast-grade linearity | 0.07% DG / 0.05° DP meets SMPTE RP-168 and ITU-R BT.601 video specification limits |
Applications
| Broadcast Video Signal Conditioning | High-Speed Data Acquisition Front-End |
|---|---|
Use Scenario: Converting differential RGB or YPbPr signals from FPGA or ASIC video outputs to single-ended format for SDI encoders or analog monitors. IC Role / Device Role / Timing Role: Differential-to-single-ended line receiver with precise gain and phase matching across color channels. Use Value: Maintains <0.07% differential gain error and <0.05° phase error at NTSC frequencies, preserving color fidelity without post-processing calibration. |
Use Scenario: Interfacing high-speed ADCs (e.g., 10-bit @ 200MSPS) with differential sensor outputs in test equipment or radar receivers. IC Role / Device Role / Timing Role: Wideband buffer and level shifter delivering full-scale ±3.7V swing into 100Ω load with sub-12ns rise time. Use Value: 5000V/µs slew rate and 550MHz bandwidth preserve transient response of fast pulses, enabling accurate waveform capture without amplitude droop. |
| Twisted-Pair to Coaxial Conversion | Medical Imaging Signal Chain |
Use Scenario: Receiving LVDS or RS-422 differential video over CAT-5 cable and driving 75Ω coaxial distribution to multiple displays or recorders. IC Role / Device Role / Timing Role: High-current line driver with 120mA output capability and 75Ω drive optimization. Use Value: Direct 75Ω drive capability eliminates external termination networks, reducing board space and insertion loss in diagnostic imaging systems. |
Use Scenario: Amplifying low-amplitude, high-frequency ultrasound echo signals from transducer arrays before digitization. IC Role / Device Role / Timing Role: Low-noise, low-distortion instrumentation amplifier stage with 25nV/√Hz input voltage noise. Use Value: Preserves weak echo signal SNR across 1–20MHz bandwidth, improving image resolution and contrast in portable ultrasound devices. |
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+T | Externally programmable gain (AV ≥ +2V/V via RG resistor); same pinout but RG pins (4,5) are functional, not N.C. | Required when variable gain or >+2V/V amplification is needed; unsuitable if fixed +2V/V is mandatory. | Select MAX4445ESE+T only if gain flexibility justifies additional resistor placement and layout verification. |
| THS4509DR | Single-supply operation (2.7V–5.5V), lower bandwidth (1.3GHz but only at AV = +1V/V), higher input bias current (±2.5µA). | Better suited for battery-powered portable instruments; less suitable for ±5V broadcast gear requiring tight DG/DP. | Choose THS4509DR for low-voltage, single-supply systems where ±5V rails are unavailable; avoid for broadcast video due to unverified DG/DP performance. |
Compared with MAX4444ESE+T, MAX4445ESE+T offers gain adjustability at the cost of added external components and layout sensitivity, while THS4509DR trades dual-supply precision for single-supply convenience-neither is pin-compatible nor drop-in, and both require redesign of gain network and power delivery.
Availability
MAX4444ESE+T is available at Aetrix Electronics and suitable for broadcast video infrastructure, high-speed data acquisition systems, and medical ultrasound front-ends requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX4444ESE+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 high-performance analog and mixed-signal ICs for precision, high-speed, and power-efficient applications across industrial, communications, and medical markets.
The MAX4444ESE+T belongs to Maxim's ultra-high-speed amplifier product line, engineered specifically for broadcast video, instrumentation, and RF signal chain applications demanding sub-0.1% linearity and >500MHz bandwidth.
FAQ
What is the maximum load capacitance the MAX4444ESE+T can drive without instability?
The MAX4444ESE+T is characterized to drive up to 100pF with proper isolation resistance. Per Figure 2 and Typical Operating Characteristics (MAX4444toc27), a series isolation resistor (RISO) of 12–24Ω is recommended for 50–100pF loads to maintain phase margin and suppress ringing. Driving >100pF without RISO risks overshoot and settling degradation in the MAX4444ESE+T output stage.
Does the MAX4444ESE+T require external gain-setting resistors?
No. The MAX4444ESE+T has an internally fixed closed-loop gain of +2V/V and does not require external resistors. Pins 4 and 5 are no-connect (N.C.) and must be tied to GND for optimal AC performance - unlike the MAX4445ESE+T, which uses those pins for RG gain configuration. This simplifies layout and improves repeatability in the MAX4444ESE+T.
Can the MAX4444ESE+T operate from a single +5V supply?
No. The MAX4444ESE+T requires dual ±5V supplies (±4.5V to ±5.5V) to achieve its specified ±3.7V output swing and 5000V/µs slew rate. Single-supply operation is not supported - attempting +5V/VSS operation will result in clipped output, degraded CMRR, and failure to meet AC specifications. The MAX4444ESE+T is designed exclusively for split-rail analog systems.
What is the purpose of the REF pin on the MAX4444ESE+T?
The REF pin on the MAX4444ESE+T sets the output DC bias point. It must be connected to the midpoint between VCC and VEE (i.e., 0V for ±5V supplies) to center the single-ended output at 0V for AC-coupled signal chains. Leaving REF floating or connecting it to other potentials causes output offset shift and violates the guaranteed output swing specification of the MAX4444ESE+T.
How does the enable function affect output impedance in shutdown mode?
When EN is low, the MAX4444ESE+T enters low-power disable mode and its output transitions to high-impedance state with ROUT(OFF) = 1.8kΩ (guaranteed). This allows safe bus sharing and prevents loading of downstream stages. The 3.5mA quiescent current reflects core bias reduction, and output recovery time is <80ns after EN returns high - critical for time-multiplexed video channel switching in the MAX4444ESE+T.
MAX4444ESE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX4444ESE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4444ESE+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 MAX4444ESE+T reliable?
The price and inventory of MAX4444ESE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4444ESE+T is usually 5 days.
3.What payment methods are accepted for MAX4444ESE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4444ESE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4444ESE+T?
MAX4444ESE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4444ESE+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 MAX4444ESE+T?
For technical support, including MAX4444ESE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4444ESE+T requirements.
6.How does Aetrix verify that MAX4444ESE+T is sourced from the original manufacturer or authorized distributors?
All MAX4444ESE+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 MAX4444ESE+T meets industry standards.
7.What is the process for return or replacement of MAX4444ESE+T?
All MAX4444ESE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4444ESE+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 MAX4444ESE+T part is unused and in its original packaging.
Return procedure for MAX4444ESE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4444ESE+T Tags
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