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Analog Devices Inc./Maxim Integrated MAX4419EUD+
- Part No.:
- MAX4419EUD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4419EUD+.pdf
- Description:
- IC OPAMP VFB 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,771
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Product details
Overview
The MAX4419EUD+ from Maxim Integrated is a quad operational amplifier optimized for high-speed, low-distortion video and baseband signal conditioning in single-supply portable systems. It delivers 150MHz -3dB bandwidth, 470V/µs slew rate, rail-to-rail output swing (within 105mV of rails at 1kΩ), ultra-low 1.6mA per-amplifier supply current, and differential gain/phase error of just 0.05%/0.35° - making it ideal for video line drivers and ADC input buffers in battery-powered instrumentation.
For engineers reviewing the MAX4419EUD+ datasheet, MAX4419EUD+ pinout, MAX4419EUD+ application, or MAX4419EUD+ equivalent, key selection criteria include closed-loop gain stability ≥+5V/V, TSSOP-14 package compatibility, 14-pin layout constraints, and performance trade-offs between unity-gain-stable (MAX4418) vs. gain-compensated (MAX4419) variants in high-frequency video paths.
Technical Context
The MAX4419EUD+ is internally compensated for stable operation at closed-loop gains of +5V/V or higher, distinguishing it from the unity-gain-stable MAX4418. Its voltage-feedback architecture features demand-driven output biasing and internal feedback to minimize open-loop output impedance, ensuring consistent gain across varying load conditions up to 150Ω.
It operates from a single +2.7V to +5.5V supply with an input common-mode range extending from VEE − 0.1V to VCC − 1.5V and rail-to-rail output capability. The device is not optimized for highly capacitive loads without series isolation resistance (e.g., 22Ω recommended for 15pF loads), as unisolated reactive loading degrades phase margin and causes peaking or oscillation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 150MHz at AV = +5V/V - supports high-fidelity video and baseband signals up to ~75MHz fundamental frequency with <0.1dB flatness. |
| Slew Rate | 470V/µs - enables clean 2Vp-p step response in ≤5ns, critical for fast-settling ADC drivers and pulse amplification. |
| Supply Current | 1.6mA per amplifier - allows four-channel operation at ≤6.4mA total, enabling extended battery life in portable instruments. |
| Differential Gain/Phase | 0.05% / 0.35° at NTSC - meets broadcast-grade video line driver requirements without external trimming. |
| Input Common-Mode Range | VEE − 0.1V to VCC − 1.5V - supports ground-sensing inputs in single-supply systems, e.g., 0–3.3V sensor interfaces. |
| Output Voltage Swing | Within 105mV of VCC or VEE at 1kΩ - delivers >4.6Vp-p dynamic range from +5V supply, maximizing SNR in analog front-ends. |
| Spurious-Free Dynamic Range | −79dBc at fC = 5MHz, VCC = +3V - ensures minimal harmonic contamination in low-voltage RF sampling paths. |
Pinout & Package
The MAX4419EUD+ is housed in a 14-pin TSSOP package (3.0mm × 4.4mm, 0.65mm pitch), rated for −40°C to +85°C operation. Thermal resistance θJA is 95°C/W; derating is 9.1mW/°C above +70°C.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Amplifier A output - drives 150Ω video loads or ADC input capacitance with low output impedance (<0.5Ω at 1MHz). |
| 2 | INA− | Amplifier A inverting input - connects to feedback network; sensitive to PCB parasitics above 10MHz. |
| 3 | INA+ | Amplifier A noninverting input - accepts DC-coupled sensor or video signals within extended common-mode range. |
| 4 | VEE | Negative power supply - tied to ground in single-supply configurations; must be bypassed with 0.1µF ceramic capacitor. |
| 5 | INB− | Amplifier B inverting input - electrically isolated from other channels; crosstalk <−72dB at 10MHz. |
| 6 | INB+ | Amplifier B noninverting input - identical electrical characteristics to INA+, enabling matched multi-channel designs. |
| 7 | VCC | Positive power supply - accepts +2.7V to +5.5V; PSRR >60dB ensures immunity to supply ripple in noisy environments. |
| 8 | OUTB | Amplifier B output - independently driven; gain/phase matching ≤0.1dB/0.1° with OUTA below 10MHz. |
| 9 | INC− | Amplifier C inverting input - shares same layout rules as INA−/INB− for consistent high-frequency performance. |
| 10 | INC+ | Amplifier C noninverting input - supports synchronous multi-channel signal conditioning (e.g., RGB video). |
| 11 | OUTC | Amplifier C output - maintains 150MHz bandwidth under 1kΩ load; output short-circuit current ±85mA. |
| 12 | IND− | Amplifier D inverting input - enables four independent gain stages on one IC, reducing board area vs. discrete op-amps. |
| 13 | IND+ | Amplifier D noninverting input - allows full utilization of quad topology for complex active filters or multi-path buffering. |
| 14 | OUTD | Amplifier D output - completes quad functionality; settling time tS(0.1%) = 160ns for 2V step, supporting high-throughput data acquisition. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers >95% of full supply range at 1kΩ load, maximizing dynamic range in low-voltage ADC interfaces. |
| Gain-compensated architecture | Stable only at closed-loop gains ≥+5V/V - prevents instability in high-gain video amplifiers without external compensation. |
| Low distortion at 5MHz | −79dBc SFDR and 0.01% THD enable clean signal reconstruction in 10-bit+ sampling systems. |
| Quad-channel matching | Gain matching ≤0.1dB and phase matching ≤0.1° below 10MHz simplify multi-channel video or filter design. |
| Capacitive load drive | Stable with up to 120pF load when isolated by ≥22Ω series resistor - supports direct driving of long PCB traces or cables. |
Applications
| Video Line Driver | ADC Input Buffer |
|---|---|
|
Use Scenario: Driving 75Ω coaxial video lines in portable medical imaging or security cameras. IC Role / Device Role / Timing Role: Final-stage video amplifier delivering NTSC/PAL-compliant signal integrity with minimal group delay variation. Use Value: 0.05%/0.35° differential gain/phase error eliminates color shift and timing jitter without external calibration components. |
Use Scenario: Conditioning analog sensor outputs before sampling by 10–12-bit, 10–50MSPS ADCs. IC Role / Device Role / Timing Role: High-speed buffer isolating ADC input capacitance (typically 10–20pF) from source impedance. Use Value: 470V/µs slew rate and 150MHz bandwidth ensure <160ns 0.1% settling for 2V steps, preventing aperture error. |
| Battery-Powered Instrumentation | Portable Communications Baseband |
|
Use Scenario: Signal conditioning in handheld multimeters, oscilloscope probes, or portable spectrum analyzers. IC Role / Device Role / Timing Role: Low-power, wide-bandwidth gain stage amplifying microvolt-level sensor signals while preserving SNR. Use Value: 1.6mA per amplifier enables four-channel operation at <6.4mA total, extending battery life beyond 20 hours on two AA cells. |
Use Scenario: IF/baseband filtering and amplification in Bluetooth/WiFi transceivers or software-defined radios. IC Role / Device Role / Timing Role: Active filter element in 2nd-order lowpass or bandpass topologies operating up to 15MHz. Use Value: −95dBc 3rd-harmonic distortion at 5MHz ensures minimal intermodulation in crowded ISM bands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-power op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4418EUD+ | Unity-gain stable; 400MHz bandwidth, 200V/µs slew rate; identical TSSOP-14 package and pinout. | Preferred for unity-gain video followers or low-gain active filters where MAX4419's +5V/V minimum gain is restrictive. | Select MAX4418EUD+ when circuit requires AV = +1V/V stability without external compensation components. |
| AD8065ARZ | Single-channel; 145MHz bandwidth, 180V/µs slew rate; SOIC-8 package; higher 7.5mA supply current per amplifier. | Used where quad integration is unnecessary and board space permits discrete channel placement. | Choose AD8065ARZ for lower noise (7nV/√Hz) in precision single-channel applications where power budget allows. |
Compared with MAX4418EUD+, the MAX4419EUD+ trades unity-gain flexibility for higher slew rate and optimized stability at +5V/V - critical for gain-setting video drivers. Against AD8065ARZ, it offers quad integration and 79% lower supply current but with slightly higher voltage noise (10nV/√Hz).
Availability
The MAX4419EUD+ is available at Aetrix Electronics and suitable for video line drivers, portable communications baseband circuits, and battery-powered instrumentation requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX4419EUD+ 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 and mixed-signal ICs for power, interface, sensing, and signal-chain applications.
The MAX4414–MAX4419 family was designed specifically for low-voltage, high-speed portable systems demanding rail-to-rail operation, ultra-low power, and video-grade linearity - targeting battery-powered test equipment and wireless infrastructure.
FAQ
What is the minimum closed-loop gain required for stable operation of the MAX4419EUD+?
The MAX4419EUD+ is internally compensated for stable operation only at closed-loop gains of +5V/V or greater. Attempting to use it at unity gain or gains below +5V/V risks oscillation and degraded AC performance. For unity-gain applications, the pin-compatible MAX4418EUD+ should be selected instead, as it is explicitly unity-gain stable and shares the same TSSOP-14 package and pinout.
Can the MAX4419EUD+ drive a 75Ω video load directly without external components?
The MAX4419EUD+ can drive a 75Ω video load directly, but only when configured for gain ≥+5V/V and with proper layout: short traces, ground plane, and 0.1µF VCC bypassing. For optimal NTSC/PAL performance, a series 22Ω isolation resistor is recommended to suppress ringing caused by cable capacitance. Without this resistor, capacitive loading may cause peaking above 100MHz and degrade differential phase accuracy.
What is the maximum capacitive load the MAX4419EUD+ can drive without oscillation?
The MAX4419EUD+ can drive up to 120pF without sustained oscillation when an appropriate isolation resistor (e.g., 22Ω for 15pF, scaling per Figure 2 in the datasheet) is placed in series with the load. Driving >120pF without isolation degrades phase margin and causes peaking or instability. Layout parasitics must be minimized - total node capacitance (PCB + load + scope probe) should remain below 120pF for reliable operation.
How does the MAX4419EUD+ compare to the MAX4418EUD+ in terms of bandwidth and application suitability?
The MAX4419EUD+ offers 150MHz bandwidth and 470V/µs slew rate but requires minimum +5V/V closed-loop gain, whereas the MAX4418EUD+ provides 400MHz bandwidth and 200V/µs slew rate with unity-gain stability. Use MAX4419EUD+ for high-gain video drivers where speed and slew rate dominate; choose MAX4418EUD+ for unity-gain followers, low-gain active filters, or applications needing unconditional stability across all gains.
Is the MAX4419EUD+ suitable for driving the input of a high-speed ADC?
Yes, the MAX4419EUD+ is well-suited for ADC input buffering due to its 470V/µs slew rate, 150MHz bandwidth, low 0.5Ω output impedance at 1MHz, and 160ns 0.1% settling time for 2V steps. Its rail-to-rail output and wide input common-mode range allow seamless interfacing with ADCs operating from +3V or +5V supplies, especially in portable data acquisition systems where power efficiency is critical.
MAX4419EUD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 470V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 150 MHz
- Current - Input Bias:
- 1.3 µA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 1.6mA (x4 Channels)
- Current - Output / Channel:
- 75 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
MAX4419EUD+ FAQ
1.How can I place an order for MAX4419EUD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4419EUD+ 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 MAX4419EUD+ reliable?
The price and inventory of MAX4419EUD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4419EUD+ is usually 5 days.
3.What payment methods are accepted for MAX4419EUD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4419EUD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4419EUD+?
MAX4419EUD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4419EUD+ 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 MAX4419EUD+?
For technical support, including MAX4419EUD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4419EUD+ requirements.
6.How does Aetrix verify that MAX4419EUD+ is sourced from the original manufacturer or authorized distributors?
All MAX4419EUD+ 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 MAX4419EUD+ meets industry standards.
7.What is the process for return or replacement of MAX4419EUD+?
All MAX4419EUD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4419EUD+, 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 MAX4419EUD+ part is unused and in its original packaging.
Return procedure for MAX4419EUD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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