My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4204EUA+
- Part No.:
- MAX4204EUA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4204EUA+.pdf
- Description:
- IC BUFFER 2 CIRCUIT 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:4,121
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX4204EUA+ from Maxim Integrated is a dual ultra-high-speed open-loop buffer with integrated 50Ω output termination resistors, designed for driving 50Ω transmission lines in high-frequency signal paths. It delivers 720MHz -3dB bandwidth, 230MHz 0.1dB gain flatness, 4200V/μs slew rate, ±52mA output current, and operates from ±5V supplies with 2.2mA per buffer quiescent current - ideal for IF/RF analog front-ends and high-speed ADC input conditioning.
For engineers reviewing the MAX4204EUA+ datasheet, MAX4204EUA+ pinout, MAX4204EUA+ application, or MAX4204EUA+ 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 MAX4204EUA+ implements an open-loop architecture with local feedback around its class-AB output stage to stabilize gain against load variation while maintaining near-constant group delay (405ps) across frequency. Its integrated 50Ω termination resistors are connected directly at each output terminal, forming a voltage divider with the 50Ω load - reducing delivered amplitude by 6dB but eliminating external components and reflection-induced distortion.
This dual-channel device features independent power supply pins (VCC1/VEE1 and VCC2/VEE2), enabling split-rail operation per buffer and minimizing crosstalk (-87dB at 10MHz). Input impedance is 500kΩ || 2pF, and output impedance is 50Ω (typical) at DC, rising slightly with frequency - a deliberate design to match coaxial line impedance without closed-loop compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 720MHz - supports full-spectrum fidelity up to UHF band without roll-off in RF sampling paths. |
| 0.1dB Gain Flatness | 230MHz - ensures amplitude consistency across multi-carrier or wideband IF signals (e.g., LTE, WLAN). |
| Slew Rate | 4200V/μs - enables clean 2VP-P step response in ≤12ns, critical for fast-settling DAC/ADC interfaces. |
| Output Current | ±52mA - drives 50Ω loads to ±2.1V while maintaining linearity; sufficient for back-terminated cable drivers. |
| Voltage-Noise Density | 2.1nV/√Hz - low-noise performance preserves SNR in sensitive receiver chain stages before ADC. |
| Crosstalk | -87dB at 10MHz - isolates dual channels for independent I/Q signal processing without intermodulation. |
| Supply Current | 2.2mA per buffer - enables dual-channel high-speed buffering with only 4.4mA total quiescent draw. |
Pinout & Package
MAX4204EUA+ is housed in an 8-pin μMAX® package (package code U8-1), measuring 3mm × 3mm × 0.8mm with exposed pad for thermal enhancement. The μMAX is a surface-mount, leaded plastic package compatible with standard reflow profiles and offering superior high-frequency EMI performance versus SOIC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1 | Buffer 1 noninverting input | High-impedance node (500kΩ || 2pF); requires matched 50Ω source termination to prevent peaking. |
| OUT1 | Buffer 1 output with integrated 50Ω resistor | Termination resistor connects internally between OUT1 and VEE1; forms 50Ω source impedance into 50Ω load. |
| VEE1 | Negative supply for Buffer 1 | Independent rail allows separate grounding or filtering for channel 1 to reduce inter-channel coupling. |
| VEE2 | Negative supply for Buffer 2 | Enables true dual-supply isolation; must be decoupled locally with 0.1μF capacitor. |
| IN2 | Buffer 2 noninverting input | Electrically identical to IN1; layout symmetry recommended to maintain crosstalk spec. |
| OUT2 | Buffer 2 output with integrated 50Ω resistor | Same internal termination topology as OUT1; no external resistor needed for 50Ω line driving. |
| VCC2 | Positive supply for Buffer 2 | Decoupling required within 2mm of pin; microstrip routing advised to minimize inductance. |
| VCC1 | Positive supply for Buffer 1 | Allows independent supply sequencing or noise filtering per channel in demanding RF systems. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 50Ω output termination | Eliminates two external resistors per channel, reduces board area by ≥3mm², and removes solder-joint variability in 50Ω signal paths. |
| Open-loop architecture with local feedback | Maintains 4200V/μs slew rate and 720MHz bandwidth without stability-compromising compensation networks. |
| Independent dual-supply pins (VCC1/VEE1, VCC2/VEE2) | Reduces inter-channel crosstalk to -87dB and enables asymmetric supply configurations for I/Q bias optimization. |
| Low 2.1nV/√Hz input voltage noise | Preserves dynamic range in baseband and IF amplification stages preceding 12–14-bit ADCs. |
| Capacitive-load tolerance without oscillation | Stable with up to 120pF load capacitance; avoids need for external isolation resistors in most PCB trace scenarios. |
Applications
| High-Speed ADC Input Buffer | 50Ω IF Signal Distribution |
|---|---|
|
Use Scenario: Driving the differential input of a 125MSPS pipeline ADC in a software-defined radio receiver. IC Role / Device Role / Timing Role: Dual-channel open-loop buffer conditions analog IF signals (e.g., 70MHz ±20MHz) before digitization, preserving transient fidelity and phase coherence. Use Value: 720MHz bandwidth and 4200V/μs slew rate ensure <1% settling error on 2VP-P steps; integrated 50Ω termination matches ADC's input network and eliminates stub reflections. |
Use Scenario: Splitting and distributing a 100MHz IF signal to two parallel demodulator paths in a satellite communications ground station. IC Role / Device Role / Timing Role: Dual buffer provides matched gain, delay, and drive strength to two downstream mixers, maintaining I/Q balance. Use Value: -87dB crosstalk and 405ps group delay flatness preserve phase alignment between channels; 50Ω outputs interface directly to SMA-coupled PCB traces. |
| Wireless LAN Front-End Driver | Digital Transmission Line Driver |
|
Use Scenario: Amplifying and driving 802.11ac 5GHz band signals from a DAC-based waveform generator to a power amplifier stage. IC Role / Device Role / Timing Role: High-slew-rate buffer delivers clean, low-distortion RF envelope with minimal group delay variation across 20MHz channels. Use Value: 230MHz 0.1dB gain flatness ensures amplitude uniformity across OFDM subcarriers; 2.1nV/√Hz noise prevents EVM degradation in 256-QAM modulation. |
Use Scenario: Driving long 50Ω microstrip traces (>15cm) on a high-density FPGA carrier board carrying serialized video data (e.g., FPD-Link III). IC Role / Device Role / Timing Role: Acts as a line driver with controlled source impedance to suppress reflections and maintain signal integrity at >1Gbps data rates. Use Value: Integrated 50Ω termination eliminates mismatch-induced jitter; 12ns 0.1% settling time supports fast edge rates without overshoot or ringing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4205EUA+ | Integrated 75Ω output termination instead of 50Ω; 720MHz bandwidth same, but optimized for 75Ω video/SDI systems. | Used in broadcast video distribution where 75Ω impedance matching is mandatory; not suitable for RF/IF 50Ω systems. | Select MAX4205EUA+ only when driving 75Ω coaxial infrastructure; MAX4204EUA+ remains optimal for RF, test equipment, and wireless IF paths. |
| LMH6723MA/NOPB | No internal termination; higher 1.8GHz bandwidth but higher 3.5mA supply current and 4.3nV/√Hz noise. | Requires external 50Ω series or shunt termination; better for ultra-wideband (>500MHz) applications where noise floor is less critical than bandwidth. | Choose LMH6723MA/NOPB when >1GHz small-signal bandwidth is required and board space allows discrete termination; MAX4204EUA+ saves BOM cost and layout complexity for 50Ω-constrained designs. |
Compared with MAX4205EUA+, the MAX4204EUA+ provides correct 50Ω source impedance for RF/IF lines without redesign, while versus LMH6723MA/NOPB it trades 460MHz bandwidth for guaranteed 50Ω drive, lower noise, and reduced component count - making it superior for production 50Ω signal-chain modules.
Availability
MAX4204EUA+ is available at Aetrix Electronics and suitable for high-speed data acquisition, RF transceiver front-ends, and digital video transmission systems requiring stable component supply and guaranteed RoHS-compliant sourcing.
Supply support for MAX4204EUA+ 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 industrial, communications, and computing applications.
The MAX4200–MAX4205 family was engineered specifically for ultra-high-speed open-loop buffering in impedance-matched signal chains - prioritizing bandwidth, low noise, and integrated termination over DC precision or rail-to-rail operation.
FAQ
What is the operating supply voltage range for the MAX4204EUA+?
The MAX4204EUA+ operates from dual supplies of ±4V to ±5.5V, with guaranteed performance across the full -40°C to +85°C temperature range. At the nominal ±5V supply, it draws 2.2mA per buffer (4.4mA total), delivering ±52mA output current into 50Ω loads. Operation outside this range may cause parametric shift or damage.
Does the MAX4204EUA+ require external termination resistors when driving 50Ω cables?
No - the MAX4204EUA+ integrates 50Ω termination resistors directly at each output (OUT1 and OUT2), eliminating the need for external series or parallel resistors. This internal termination establishes a precise 50Ω source impedance, ensuring optimal matching to 50Ω transmission lines and preventing reflections without additional components or layout area.
What is the significance of the independent VCC1/VEE1 and VCC2/VEE2 pins on the MAX4204EUA+?
The MAX4204EUA+ features fully independent power supply pins for each buffer to minimize inter-channel coupling. This architecture achieves -87dB crosstalk at 10MHz and allows separate decoupling, grounding, or even asymmetric supply voltages per channel - essential for I/Q signal paths where phase and amplitude matching must be preserved across both buffers.
Can the MAX4204EUA+ drive capacitive loads without instability?
Yes - the MAX4204EUA+ is designed to remain stable with capacitive loads up to 120pF without oscillation, thanks to its open-loop architecture and lack of phase-shift-dependent feedback. While bandwidth rolls off with increasing capacitance (e.g., -3dB point drops from 720MHz to ~300MHz at 120pF), the device does not exhibit peaking or ringing unless combined with inductive source impedances.
How does the MAX4204EUA+ differ from the single-channel MAX4201EUK-T?
The MAX4204EUA+ is a dual-channel version with 8-pin μMAX packaging, independent dual supplies, and matched channel performance (gain, delay, noise), whereas the MAX4201EUK-T is single-channel in 5-pin SOT23. Both feature 50Ω termination and similar AC specs, but MAX4204EUA+ enables space-efficient dual-path designs without doubling PCB footprint or supply routing complexity.
MAX4204EUA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Buffer
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 4200V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 720 MHz
- Current - Input Bias:
- 800 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 2.2mA (x2 Channels)
- Current - Output / Channel:
- 52 mA
- Voltage - Supply Span (Min):
- 8 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX4204EUA+ FAQ
1.How can I place an order for MAX4204EUA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4204EUA+ 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 MAX4204EUA+ reliable?
The price and inventory of MAX4204EUA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4204EUA+ is usually 5 days.
3.What payment methods are accepted for MAX4204EUA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4204EUA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4204EUA+?
MAX4204EUA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4204EUA+ 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 MAX4204EUA+?
For technical support, including MAX4204EUA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4204EUA+ requirements.
6.How does Aetrix verify that MAX4204EUA+ is sourced from the original manufacturer or authorized distributors?
All MAX4204EUA+ 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 MAX4204EUA+ meets industry standards.
7.What is the process for return or replacement of MAX4204EUA+?
All MAX4204EUA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4204EUA+, 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 MAX4204EUA+ part is unused and in its original packaging.
Return procedure for MAX4204EUA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4204EUA+ Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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…
