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Analog Devices Inc./Maxim Integrated MAX4448ESE+T
- Part No.:
- MAX4448ESE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Video Amps and Modules
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4448ESE+T.pdf
- Description:
- IC AMP DRIVER 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,757
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Product details
Overview
The MAX4448ESE+T from Maxim Integrated is a high-speed, current-feedback single-ended-to-differential line driver IC designed for video and RF signal transmission over twisted-pair or coaxial media. It delivers 330MHz small-signal bandwidth, 4300V/µs slew rate (typ), ±6.2V differential output swing into 50Ω, and supports externally set gain ≥+2V/V via RG resistor. It is used in xDSL transmitters and differential ADC driver stages.
For engineers reviewing the MAX4448ESE+T datasheet, MAX4448ESE+T pinout, MAX4448ESE+T application, or MAX4448ESE+T equivalent, key selection criteria include gain configurability, enable-controlled power-down mode (<5.5mA quiescent), differential phase/gain error (0.01%/0.02°), SFDR (-78dBc at 100kHz), and SO-16 narrow package compatibility with high-frequency layout requirements.
Technical Context
The MAX4448ESE+T employs current-feedback amplifier (CFA) architecture to achieve wide bandwidth and high slew rate while maintaining stability at minimum gain of +2V/V. Its internal compensation ensures unity-gain stability is not required, enabling robust performance with external gain-setting resistors connected to the RG pin.
It integrates active-high TTL-compatible enable logic that places outputs in high-impedance state and reduces supply current to ≤3.2mA in shutdown. The device operates from dual ±5V supplies, supports ±6.2V differential output into 50Ω, and features ultra-low input noise density (24nV/√Hz) and exceptional differential linearity (DG/DP = 0.01%/0.02°).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 330MHz - enables full-bandwidth signal integrity for baseband video and broadband communications up to ~165MHz Nyquist. |
| Slew Rate | 4300V/µs (typ) - supports fast transient response for pulse and digital video signals without distortion. |
| Differential Output Swing | ±6.2V into 50Ω - delivers 12.4Vpp differential drive for long-line transmission with margin against cable loss. |
| Gain Configuration | ≥+2V/V via external RG resistor - allows precise gain tuning without sacrificing bandwidth or stability. |
| Enable Function | Active-high TTL-compatible EN pin - reduces IQ to ≤3.2mA and forces high-Z outputs for power-gating in burst-mode systems. |
| Differential Gain/Phase Error | 0.01% / 0.02° - meets broadcast-grade NTSC/PAL video linearity requirements without post-correction. |
| SFDR | -78dBc at 100kHz - ensures clean spectral purity for high-fidelity RF and IF signal chain applications. |
Pinout & Package
MAX4448ESE+T is housed in a 16-pin narrow SOIC (SOICN) package with 1.27mm pitch, optimized for high-frequency PCB layouts requiring ground-plane integrity and minimal parasitic inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pins 1,2) | Positive supply rail | Bypass with 0.1µF ceramic capacitor to GND; supports +5V operation only. |
| 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 | Connect resistor to GND to configure gain per G = 2×(1 + 300/RG); unused on MAX4447. |
| EN (Pin 9) | Enable control input | TTL-compatible active-high logic; drives outputs to high-Z and cuts IQ below 5.5mA when low. |
| OUT+ (Pin 10) | Differential positive output | Delivers inverted complement of OUT−; requires matched 50Ω termination to load. |
| OUT− (Pin 15) | Differential negative output | Complementary output to OUT+; forms true differential pair with 180° phase relationship. |
| VEE (Pins 7,8,11,12,13,14) | Negative supply rail | Bypass each VEE pin individually with 0.1µF capacitor to GND for optimal PSRR and stability. |
| GND (Pin 16) | Analog/digital reference | Primary ground connection; must tie directly to solid ground plane with minimal trace length. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables 330MHz bandwidth and 4300V/µs slew rate without sacrificing stability at gain ≥+2V/V. |
| Externally programmable gain | Supports precision gain setting from +2V/V upward using single resistor to GND on RG pin. |
| Low-power enable mode | Reduces supply current to ≤3.2mA and disables outputs to high-Z-critical for power-cycled line drivers. |
| Ultra-low differential distortion | 0.01% differential gain / 0.02° differential phase error preserves color fidelity in analog video systems. |
| High-output current drive | 130mA continuous output current supports heavy capacitive loads and long cable runs without buffering. |
Applications
| Video Signal Transmission | xDSL Line Driver |
|---|---|
Use Scenario: Driving composite NTSC video over 75Ω coaxial cable to remote monitors or distribution amplifiers. IC Role / Device Role / Timing Role: Single-ended-to-differential converter and level shifter providing balanced output for EMI-resistant transmission. Use Value: 0.01%/0.02° differential gain/phase error eliminates hue/saturation shift; ±6.2V swing compensates for cable attenuation. | Use Scenario: Transmitting ADSL upstream/downstream signals across twisted-pair telephone lines. IC Role / Device Role / Timing Role: High-linearity differential transmitter interfacing with DSL PHY and line interface unit (LIU). Use Value: -78dBc SFDR at 100kHz and 330MHz bandwidth support multi-tone DSL profiles (e.g., ADSL2+, VDSL2) without spectral regrowth. |
| Differential ADC Driver | RF IF Signal Chain |
Use Scenario: Conditioning single-ended IF signals before digitization by a high-speed differential-input ADC. IC Role / Device Role / Timing Role: Wideband gain block and common-mode level shifter delivering balanced, low-noise input to ADC front-end. Use Value: 24nV/√Hz input voltage noise and 130mA drive capability ensure SNR preservation and drive strength for 14–16-bit ADCs. | Use Scenario: Amplifying and converting single-ended LO or IF signals in wireless transceivers (e.g., MAX2450/MAX2451 interface). IC Role / Device Role / Timing Role: Low-phase-noise differential driver stage in RF signal path with tight group delay flatness. Use Value: 200MHz 0.1dB gain flatness and <8ns settling time maintain modulation accuracy for QAM/OFDM waveforms. |
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 |
|---|---|---|---|
| MAX4447ESE+T | Fixed +2V/V gain; higher 430MHz bandwidth and 4300V/µs slew rate; no RG pin. | Better for fixed-gain, highest-bandwidth video or test equipment where gain flexibility is unnecessary. | Select MAX4447ESE+T when gain stability and maximum small-signal bandwidth outweigh need for adjustable gain. |
| THS3201DGN | Single-supply operation (±5V not required); 440MHz bandwidth; 4700V/µs slew rate; no integrated enable. | Suited for portable or mixed-signal systems needing single-rail biasing; lacks low-power shutdown mode. | Choose THS3201DGN when system uses single +5V/–5V rails and enable functionality is implemented externally. |
Compared with MAX4447ESE+T and THS3201DGN, the MAX4448ESE+T uniquely balances externally adjustable gain, integrated enable, and dual-supply optimized linearity-making it optimal for modular, power-aware differential transmitter designs requiring field-tunable gain.
Availability
MAX4448ESE+T is available at Aetrix Electronics and suitable for xDSL infrastructure, broadcast video equipment, high-speed data acquisition, and RF test instrumentation requiring stable component supply and long-term manufacturability.
Supply support for MAX4448ESE+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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and RF ICs for demanding signal-chain applications.
The MAX4447/MAX4448/MAX4449 family was engineered specifically for high-fidelity, high-speed differential transmission in video, xDSL, and RF systems-emphasizing linearity, bandwidth, and low-noise drive capability over general-purpose op-amp behavior.
FAQ
What is the recommended power supply configuration for MAX4448ESE+T?
The MAX4448ESE+T requires dual ±5V supplies (VCC = +5V, VEE = –5V) with individual 0.1µF ceramic bypass capacitors placed as close as possible to each VCC and VEE pin. This configuration ensures specified performance for bandwidth, output swing (±6.2V), and PSRR (75dB). Operation outside ±4.5V to ±5.5V violates absolute maximum ratings and degrades linearity.
How does the RG pin function on MAX4448ESE+T?
The RG pin on MAX4448ESE+T connects to an external resistor (RGAIN) tied to GND to set closed-loop gain per G = 2 × (1 + 300/RGAIN). For example, a 300Ω resistor yields +4V/V gain. RG is unconnected (NC) on MAX4447ESE+T. The MAX4448ESE+T is internally compensated for stability at gains ≥+2V/V, eliminating need for external compensation networks.
Does MAX4448ESE+T support DC-coupled differential output loads?
Yes, MAX4448ESE+T supports DC-coupled 50Ω differential loads. Its ±6.2V output swing is specified with RL = 50Ω between OUT+ and OUT− under ±5V supplies. For AC-coupled applications, series DC-blocking capacitors must be sized to preserve low-frequency response down to required cutoff (e.g., 0.1µF for >30Hz).
What is the typical enable/disable timing behavior of MAX4448ESE+T?
When EN transitions high, MAX4448ESE+T achieves full output drive capability in ≤55ns (enable time). When EN goes low, outputs enter high-impedance state within ≤900ns (disable time), and supply current drops to ≤3.2mA within 0.5µs (power-down time). These timings are measured under VOUT = 2V step conditions and ensure clean burst-mode operation in time-division systems.
Can MAX4448ESE+T drive 75Ω video loads directly?
MAX4448ESE+T is characterized for 50Ω differential loads but can drive 75Ω with minor trade-offs: output swing reduces to ~±5.1V (vs. ±6.2V), and bandwidth compresses slightly (~300MHz small-signal). For broadcast video, use 50Ω termination with external 25Ω series resistor per leg to match 75Ω coax-preserving specified linearity and settling performance.
MAX4448ESE+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:
- Last Time Buy
- Applications:
- Driver
- Output Type:
- Differential
- Number of Circuits:
- 1
- -3db Bandwidth:
- 330 MHz
- Slew Rate:
- 4300V/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
MAX4448ESE+T FAQ
1.How can I place an order for MAX4448ESE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4448ESE+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 MAX4448ESE+T reliable?
The price and inventory of MAX4448ESE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4448ESE+T is usually 5 days.
3.What payment methods are accepted for MAX4448ESE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4448ESE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4448ESE+T?
MAX4448ESE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4448ESE+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 MAX4448ESE+T?
For technical support, including MAX4448ESE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4448ESE+T requirements.
6.How does Aetrix verify that MAX4448ESE+T is sourced from the original manufacturer or authorized distributors?
All MAX4448ESE+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 MAX4448ESE+T meets industry standards.
7.What is the process for return or replacement of MAX4448ESE+T?
All MAX4448ESE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4448ESE+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 MAX4448ESE+T part is unused and in its original packaging.
Return procedure for MAX4448ESE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4448ESE+T Tags
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LT6552CS8#PBF
Analog Devices Inc.
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LT6205IS5#TRPBF
Analog Devices Inc.
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LT6206IMS8#TRPBF
Analog Devices Inc.
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LT6552CDD#PBF
Analog Devices Inc.
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LT6552IS8#PBF
Analog Devices Inc.
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LT1252CS8#PBF
Analog Devices Inc.
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AD818ARZ-REEL7
Analog Devices Inc.
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MAX4310EUA+
Analog Devices Inc./Maxim Integrated
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AD829ARZ
Analog Devices Inc.
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AD810ARZ
Analog Devices Inc.
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MAX4310ESA+
Analog Devices Inc./Maxim Integrated
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MAX4313ESA+
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