My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4449ESE+
- Part No.:
- MAX4449ESE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Video Amps and Modules
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4449ESE+.pdf
- Description:
- IC AMP DRIVER 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,792
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX4449ESE+ from Maxim Integrated is a high-speed, current-feedback single-ended-to-differential line driver optimized for xDSL, video, and RF signal transmission. It delivers 400MHz small-signal bandwidth, 6500V/µs slew rate, ±6.2V differential output swing into 50Ω, and supports +5V/V minimum gain via external resistor RG. It operates from ±5V supplies and features active-high TTL-compatible enable.
For engineers reviewing the MAX4449ESE+ datasheet, MAX4449ESE+ pinout, MAX4449ESE+ application, or MAX4449ESE+ equivalent, key selection criteria include differential gain/phase accuracy (0.01%/0.02°), ultra-low noise (23nV/√Hz), 8ns 0.1% settling time, SFDR of –78dBc at 100kHz, and compatibility with twisted-pair and coaxial cable interfaces.
Technical Context
The MAX4449ESE+ uses current-feedback amplifier (CFA) architecture to achieve wide bandwidth and high slew rate without sacrificing stability at minimum gain of +5V/V. Its internal compensation ensures unity-gain stability only when configured for ≥+5V/V using external RG resistor (≤200Ω).
It integrates dual high-current output stages capable of delivering 130mA per output, enabling ±6.2V differential swing into 50Ω loads. The enable input places outputs in high-impedance state and reduces quiescent current to <5.5mA, supporting power-sensitive high-speed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 400MHz - supports full-bandwidth signal integrity up to UHF for RF and video baseband transmission |
| Slew Rate | 6500V/µs - enables faithful reproduction of fast transient signals without distortion in pulse and digital applications |
| Differential Output Swing | ±6.2V into 50Ω - drives standard differential line impedances with headroom for cable loss compensation |
| Gain Configuration | +5V/V minimum, set externally via RG ≤200Ω - provides design flexibility for precise gain tailoring in transmitter stages |
| Input Noise Density | 23nV/√Hz at 1MHz - preserves SNR in low-level analog signal chains such as ADC drivers and RF IF stages |
| Differential Gain/Phase Error | 0.01%/0.02° - meets broadcast-grade video fidelity requirements for NTSC/PAL signal distribution |
| Spurious-Free Dynamic Range | –78dBc at 100kHz - ensures clean spectral performance in sensitive communication receivers and transceivers |
Pinout & Package
MAX4449ESE+ is housed in a 16-pin narrow SOIC (SOICN) package with exposed pad not present; thermal dissipation relies on PCB copper area under the body. Pin 1 is located at the top-left corner adjacent to the index mark.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pins 1,2) | Positive supply input | Bypass required with 0.1µF capacitor to GND; supplies both output stages and internal bias circuitry |
| IN (Pin 5) | Noninverting input | Single-ended signal entry point; high-impedance node requiring controlled-impedance trace routing |
| RG (Pin 4) | External gain-set terminal | Connects to GND via resistor (≤200Ω) to configure minimum +5V/V gain; open or misconnected causes instability |
| EN (Pin 9) | Enable control input | TTL-compatible active-high logic; pulls outputs to high-Z and reduces IQ to <5.5mA when low |
| OUT+ (Pin 10) | Differential output positive | Delivers inverted complement of OUT–; must be routed with matched length and impedance to OUT– |
| OUT– (Pin 15) | Differential output negative | Complementary output pair; together with OUT+, forms fully balanced 100Ω differential transmission line interface |
| VEE (Pins 7,8,11,12,13,14) | Negative supply input | Multiple pins reduce inductance; each requires local 0.1µF bypass to GND for high-frequency PSRR |
| GND (Pin 16) | Analog ground reference | Primary return path for input bias, feedback, and output currents; must connect directly to solid ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables 400MHz bandwidth and 6500V/µs slew rate while maintaining stability at +5V/V gain |
| High-output-current stage | 130mA drive capability per output supports ±6.2V swing into 50Ω and robust cable driving |
| Low-distortion differential signaling | –78dBc SFDR and 0.01%/0.02° differential gain/phase ensure minimal signal degradation in video/RF paths |
| Enable-controlled power-down | Reduces quiescent current to <5.5mA and places outputs in high-Z-critical for multi-channel TDM systems |
| Ultra-low input voltage noise | 23nV/√Hz at 1MHz preserves dynamic range in precision ADC driver and IF amplifier applications |
Applications
| ADSL/VDSL Line Driver | High-Speed Differential ADC Driver |
|---|---|
Use Scenario: Driving twisted-pair telephone lines in DSLAM or CPE equipment with frequency content up to 30MHz. IC Role / Device Role / Timing Role: Single-ended-to-differential converter and line transmitter with gain compensation for cable attenuation. Use Value: Delivers ±6.2V differential output into 100Ω pair while maintaining <0.02° phase error across band-enabling higher-order QAM constellations. | Use Scenario: Conditioning single-ended sensor or IF signals before digitization by a high-resolution differential-input ADC. IC Role / Device Role / Timing Role: High-fidelity gain block and common-mode level shifter with matched output timing. Use Value: 8ns 0.1% settling time and 23nV/√Hz noise floor preserve ENOB in 14-bit+ ADC systems operating at >10MSPS. |
| SDI/HDMI Level Translator | RF Quadrature Signal Generator |
Use Scenario: Converting consumer-grade single-ended video signals to SMPTE-compliant differential SDI format. IC Role / Device Role / Timing Role: Wideband differential transmitter with DC-coupled output and precise gain flatness. Use Value: 200MHz 0.1dB gain flatness and 0.01% differential gain error meet SMPTE 259M eye diagram mask requirements. | Use Scenario: Generating I/Q differential outputs from a single LO-driven mixer stage in direct-conversion transceivers. IC Role / Device Role / Timing Role: Balanced RF signal amplifier with amplitude/phase matching between I and Q paths. Use Value: Matched gain and phase response (<0.02° skew) minimizes image rejection degradation in sub-6GHz wireless front ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-ended-to-differential line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3201DGN | Fixed +2V/V gain, 440MHz bandwidth, 4500V/µs slew rate, no enable pin | Lacks programmable gain and power-down mode; suited for fixed-gain, always-on video paths | Select when gain stability and simplicity outweigh need for gain tuning or low-power states |
| LMH5401RTVT | DC-coupled, 1800MHz bandwidth, 10,000V/µs slew rate, integrated level shift, no RG pin | Supports rail-to-rail output swing and higher-frequency RF applications but requires more complex layout | Choose for >500MHz IF/RF designs where bandwidth and slew rate supersede gain flexibility |
Compared with THS3201DGN and LMH5401RTVT, the MAX4449ESE+ uniquely balances programmable +5V/V gain, industry-leading 6500V/µs slew rate, and integrated enable-making it optimal for xDSL modems and multi-channel video transmitters requiring dynamic power control and cable-loss compensation.
Availability
MAX4449ESE+ is available at Aetrix Electronics and suitable for xDSL infrastructure, broadcast video equipment, and RF test instrumentation requiring stable component supply, long-term manufacturability, and guaranteed traceability.
Supply support for MAX4449ESE+ 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 MAX4447/MAX4448/MAX4449 family was designed specifically for high-speed differential line driving in broadband access and professional video systems-emphasizing bandwidth, output drive, and differential fidelity over general-purpose op-amp traits.
FAQ
What is the minimum stable gain configuration for the MAX4449ESE+?
The MAX4449ESE+ is internally compensated for stable operation only at minimum closed-loop gains of +5V/V or higher. This is achieved by connecting an external resistor (RG ≤200Ω) from Pin 4 (RG) to GND. Attempting to use lower gains may cause oscillation or degraded step response. The MAX4449ESE+ datasheet specifies this requirement explicitly in the Applications Information section.
Does the MAX4449ESE+ support ±5V supplies only, or can it operate at other voltages?
The MAX4449ESE+ is specified for operation with ±4.5V to ±5.5V supplies (i.e., VCC = +4.5V to +5.5V, VEE = –4.5V to –5.5V). While absolute maximum ratings allow up to ±6V, performance parameters-including output swing, bandwidth, and distortion-are guaranteed only within the ±4.5V to ±5.5V range. Operation outside this range may compromise MAX4449ESE+ functionality and reliability.
How does the enable function affect output behavior in the MAX4449ESE+?
When the EN pin (Pin 9) is driven low, the MAX4449ESE+ enters low-power mode: quiescent current drops below 5.5mA and both OUT+ and OUT– outputs enter a high-impedance state. This prevents loading of downstream circuitry and eliminates DC path through the driver. The enable transition times (tON/tOFF) are 55ns and 0.5µs respectively, as measured in the MAX4449ESE+ AC Electrical Characteristics table.
Can the MAX4449ESE+ drive 75Ω coaxial cables directly?
Yes-the MAX4449ESE+ can drive 75Ω coaxial loads, though differential output is inherently referenced to 100Ω. For 75Ω, use a resistive termination network (e.g., 150Ω across OUT+/OUT–) to match impedance while preserving common-mode rejection. The MAX4449ESE+ delivers ±6.2V swing into 50Ω; into 75Ω, expected swing is ~±7.4V (calculated from load line), verified in the DC Electrical Characteristics table under VOUT parameter.
What is the purpose of the multiple VEE pins on the MAX4449ESE+?
The MAX4449ESE+ allocates six pins (7,8,11,12,13,14) to VEE to minimize ground bounce and supply inductance in high-speed operation. Each pin must be individually bypassed with a 0.1µF capacitor to the PCB ground plane. This multi-pin strategy reduces effective series inductance, improves PSRR above 10MHz, and stabilizes output stage current sources-critical for maintaining MAX4449ESE+ slew rate and harmonic distortion specs.
MAX4449ESE+ 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:
- Last Time Buy
- Applications:
- Driver
- Output Type:
- Differential
- Number of Circuits:
- 1
- -3db Bandwidth:
- 400 MHz
- Slew Rate:
- 6500V/µs
- Current - Supply:
- 46 mA
- Current - Output / Channel:
- 130 mA
- Voltage - Supply, Single/Dual (±):
- ±4.5V ~ 5.5V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-SOIC
MAX4449ESE+ FAQ
1.How can I place an order for MAX4449ESE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4449ESE+ 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 MAX4449ESE+ reliable?
The price and inventory of MAX4449ESE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4449ESE+ is usually 5 days.
3.What payment methods are accepted for MAX4449ESE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4449ESE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4449ESE+?
MAX4449ESE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4449ESE+ 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 MAX4449ESE+?
For technical support, including MAX4449ESE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4449ESE+ requirements.
6.How does Aetrix verify that MAX4449ESE+ is sourced from the original manufacturer or authorized distributors?
All MAX4449ESE+ 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 MAX4449ESE+ meets industry standards.
7.What is the process for return or replacement of MAX4449ESE+?
All MAX4449ESE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4449ESE+, 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 MAX4449ESE+ part is unused and in its original packaging.
Return procedure for MAX4449ESE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4449ESE+ Tags
-
LT6552CS8#PBF
Analog Devices Inc.
-
LT6205IS5#TRPBF
Analog Devices Inc.
-
LT6206IMS8#TRPBF
Analog Devices Inc.
-
LT6552CDD#PBF
Analog Devices Inc.
-
LT6552IS8#PBF
Analog Devices Inc.
-
LT1252CS8#PBF
Analog Devices Inc.
-
AD818ARZ-REEL7
Analog Devices Inc.
-
MAX4310EUA+
Analog Devices Inc./Maxim Integrated
-
AD829ARZ
Analog Devices Inc.
-
AD810ARZ
Analog Devices Inc.
-
MAX4310ESA+
Analog Devices Inc./Maxim Integrated
-
MAX4313ESA+
Analog Devices Inc./Maxim Integrated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
