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Analog Devices Inc./Maxim Integrated MAX4204ESA+T
- Part No.:
- MAX4204ESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4204ESA+T.pdf
- Description:
- IC BUFFER 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,503
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Product details
Overview
MAX4204ESA+T 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 - enabling high-fidelity analog front-end buffering in IF/RF data acquisition systems.
For engineers reviewing the MAX4204ESA+T datasheet, MAX4204ESA+T pinout, MAX4204ESA+T application, or MAX4204ESA+T equivalent, key selection criteria include its dual-channel 50Ω-terminated architecture, guaranteed -40°C to +85°C operation, μMAX-8 package footprint, low 2.1nV/√Hz input voltage noise, and compatibility with high-speed ADC/DAC interface and coaxial cable driver designs requiring minimal group delay variation.
Technical Context
The MAX4204ESA+T implements an open-loop, class-AB output stage with local feedback to stabilize output impedance and reduce gain sensitivity to load variations. Its architecture eliminates dominant-pole compensation, yielding near-constant 405ps group delay across frequency and avoiding phase-shift-induced instability common in voltage-feedback amplifiers.
It features two independent buffers sharing common power rails (VCC1/VCC2 and VEE1/VEE2), each with 50Ω series output termination (RT = 50Ω) and no internal feedback network - resulting in fixed gain ≈0.5V/V into 50Ω loads. Input impedance is 500kΩ || 2pF, and output impedance is 50Ω at DC, optimized for direct connection to 50Ω coaxial cables without external resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 720MHz - supports full-power signal delivery up to ~310MHz (FPBW), suitable for wideband IF stages and high-sample-rate ADC drivers. |
| 0.1dB Gain Flatness | 230MHz - ensures amplitude consistency across multi-MHz video, comms, or instrumentation bands without equalization. |
| Slew Rate | 4200V/μs - enables clean 2V-step response in ≤12ns (0.1% settling), critical for pulse fidelity in digital transmission line drivers. |
| Output Current | ±52mA - drives 50Ω loads to ±2.1V swing while maintaining linearity, sufficient for back-terminated coaxial interfaces. |
| Voltage-Noise Density | 2.1nV/√Hz at 1MHz - preserves SNR in low-level analog signal chains preceding high-resolution ADCs. |
| Supply Current | 2.2mA per buffer (4.4mA total) - enables dual-channel high-speed buffering with minimal power overhead in portable or thermally constrained systems. |
| Operating Temperature | -40°C to +85°C - qualified for industrial and communications infrastructure environments without derating. |
Pinout & Package
MAX4204ESA+T is housed in an 8-pin μMAX® package (package code U8-1), measuring 3mm × 3mm × 0.8mm with exposed pad for thermal enhancement. The package is RoHS-compliant and uses fine-pitch gull-wing leads compatible with standard SMT reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN1 | Buffer 1 Input | Differential-capable single-ended input node; 500kΩ || 2pF impedance requires controlled-impedance routing and proper source termination. |
| 2 OUT1 | Buffer 1 Output | 50Ω series-terminated output; connects directly to 50Ω load or coaxial cable - no external resistor needed for matched drive. |
| 3 VEE1 | Negative Supply for Buffer 1 | Independent negative rail pin allows separate decoupling; must be bypassed with 0.1μF capacitor close to pin. |
| 4 VEE2 | Negative Supply for Buffer 2 | Shared ground reference with VEE1 in most layouts; supports dual-supply operation with split ±5V rails. |
| 5 IN2 | Buffer 2 Input | Second independent input; electrically identical to IN1 - enables dual-path signal conditioning without crosstalk degradation (-65dB @ 100MHz). |
| 6 OUT2 | Buffer 2 Output | Second 50Ω-terminated output; fully isolated from OUT1 - supports independent 50Ω channel routing on PCB. |
| 7 VCC2 | Positive Supply for Buffer 2 | Independent positive rail; decoupling required per supply pin to suppress high-frequency PSR degradation. |
| 8 VCC1 | Positive Supply for Buffer 1 | Paired with VCC2 for dual-buffer supply independence; improves PSR (72dB typical) and reduces inter-channel coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 50Ω output termination | Eliminates two external resistors per channel, reducing BOM count and board area while ensuring precise 50Ω source match for RF/IF signal integrity. |
| Open-loop architecture with local feedback | Delivers stable ±52mA drive into varying loads without gain collapse - unlike conventional op-amps, gain remains predictable across RL = 30Ω–150Ω. |
| 405ps group delay flatness | Enables coherent multi-channel sampling and phase-aligned signal processing in I/Q receivers and beamforming arrays. |
| Low 0.8pA/√Hz current-noise density | Minimizes Johnson-Nyquist noise contribution when driving high-impedance sources (e.g., transformer-coupled IF outputs). |
| Capacitive-load tolerance | Stable operation with ≥120pF load capacitance without oscillation - simplifies layout for dense mixed-signal PCBs with adjacent digital traces. |
Applications
| High-Speed ADC Input Buffer | 50Ω Coaxial Cable Driver |
|---|---|
|
Use Scenario: Driving the analog input of a 125MSPS pipeline ADC in a software-defined radio receiver. IC Role / Device Role / Timing Role: Dual-channel open-loop buffer conditions IF signals prior to digitization, preserving transient fidelity and minimizing aperture jitter via low group-delay variation. Use Value: 720MHz bandwidth and 230MHz 0.1dB flatness ensure full utilization of ADC Nyquist zone; 2.1nV/√Hz noise contributes <0.5 LSB noise floor degradation at 12-bit resolution. |
Use Scenario: Transmitting baseband video or LTE IF signals over 1m RG-58 coaxial cable to an FPGA-based demodulator. IC Role / Device Role / Timing Role: Dual 50Ω-terminated line driver provides matched source impedance, eliminating reflections and preserving edge integrity at >100MHz. Use Value: Integrated 50Ω RT eliminates external components; ±52mA drive sustains 2.1Vpp into 50Ω, meeting SMPTE/3G-SDI voltage swing requirements without level-shifting. |
| Wireless LAN Front-End | Digital Transmission Line Driver |
|
Use Scenario: Buffering upconverted 2.4GHz/5GHz IF signals in 802.11ac access point transceivers before upconversion to RF. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate dual buffer isolates mixer output from filter loading while maintaining phase coherence between I/Q paths. Use Value: -87dB crosstalk at 10MHz and -65dB at 100MHz prevents I/Q leakage; 4200V/μs slew rate supports clean 200MHz modulation bandwidth. |
Use Scenario: Driving parallel LVDS or CML-compatible logic signals across 10cm PCB traces in high-speed test equipment backplanes. IC Role / Device Role / Timing Role: High-output-current dual buffer acts as a low-jitter, low-skew line driver for deterministic timing in bit-serial interfaces. Use Value: 12ns 0.1% settling time and 405ps group delay enable sub-10ps inter-channel skew control; ±52mA drive handles 37.5Ω trace impedance with margin. |
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 |
|---|---|---|---|
| MAX4203ESA+ | No internal termination; output impedance ≈8Ω (unterminated), requiring external 50Ω series resistors per channel. | Suitable where flexible load matching (e.g., 75Ω or high-Z) is needed; less optimal for fixed 50Ω cable drive due to added component count. | Select MAX4203ESA+ only if system requires non-50Ω termination or shared supply rails (single VCC/VEE pins). |
| LMH6723MA/NOPB | Single-channel, no internal termination; 1.8GHz GBW, higher supply current (9.5mA), no guaranteed 50Ω output match. | Better suited for closed-loop gain configurations or DC-coupled precision buffering; lacks integrated 50Ω drive for direct coax interface. | Choose LMH6723MA/NOPB when open-loop gain >1 or wider bandwidth (>720MHz) is required, accepting added layout complexity for termination. |
Compared with MAX4203ESA+ and LMH6723MA/NOPB, the MAX4204ESA+T uniquely combines dual-channel operation, factory-trimmed 50Ω output termination, and guaranteed 720MHz bandwidth in a space-constrained μMAX package - making it the optimal drop-in solution for 50Ω IF signal distribution where BOM reduction and layout simplicity are critical.
Availability
MAX4204ESA+T is available at Aetrix Electronics and suitable for high-speed data acquisition, wireless infrastructure, and broadcast video systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4204ESA+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 semiconductor company specializing in high-performance analog, mixed-signal, and RF ICs for industrial, communications, and consumer applications.
The MAX4200–MAX4205 family was engineered specifically for ultra-high-speed open-loop buffering in IF/RF signal chains - prioritizing bandwidth, low noise, capacitive-load stability, and integrated termination to simplify high-frequency PCB design.
FAQ
What is the operating supply voltage range for the MAX4204ESA+T?
The MAX4204ESA+T operates from dual supplies of ±4V to ±5.5V, with guaranteed performance at ±5V. It draws 2.2mA per buffer (4.4mA total) quiescent current. Operation outside this range may cause parametric degradation or damage; absolute maximum ratings specify -0.3V to +12V on any pin relative to GND.
Does the MAX4204ESA+T require external compensation or feedback components?
No, the MAX4204ESA+T is an open-loop buffer with no internal compensation capacitor and no requirement for external feedback networks. Its architecture relies on local feedback around the output stage rather than global negative feedback, enabling stable 720MHz operation without external components - ideal for fixed-gain, high-speed signal routing.
Can the MAX4204ESA+T drive a 50Ω load directly without external resistors?
Yes, the MAX4204ESA+T integrates 50Ω series output termination resistors on both OUT1 and OUT2 pins. When driving a 50Ω load (e.g., coaxial cable or PCB trace), no external resistors are needed - the device delivers a matched source impedance that minimizes reflections and preserves signal integrity up to 230MHz 0.1dB flatness.
What is the typical group delay variation of the MAX4204ESA+T across frequency?
The MAX4204ESA+T exhibits a nearly constant group delay of 405ps across its full operating bandwidth, with minimal variation (<±10ps) from DC to 1GHz. This flatness results from its open-loop architecture and absence of dominant-pole compensation - making the MAX4204ESA+T especially valuable in phase-sensitive applications like I/Q signal processing and coherent receiver front-ends.
Is the MAX4204ESA+T pin-compatible with other devices in the MAX4200–MAX4205 family?
The MAX4204ESA+T uses the 8-pin μMAX package (U8-1), which is pin-compatible with MAX4203ESA+ and MAX4205ESA+ in the same package variant. However, pin functions differ from SO-8 versions (e.g., MAX4204ESA), and internal termination values vary: MAX4204ESA+T has 50Ω, MAX4205ESA+ has 75Ω, and MAX4203ESA+ has no termination - requiring schematic and layout verification before substitution.
MAX4204ESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-SOIC
MAX4204ESA+T FAQ
1.How can I place an order for MAX4204ESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4204ESA+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 MAX4204ESA+T reliable?
The price and inventory of MAX4204ESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4204ESA+T is usually 5 days.
3.What payment methods are accepted for MAX4204ESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4204ESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4204ESA+T?
MAX4204ESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4204ESA+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 MAX4204ESA+T?
For technical support, including MAX4204ESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4204ESA+T requirements.
6.How does Aetrix verify that MAX4204ESA+T is sourced from the original manufacturer or authorized distributors?
All MAX4204ESA+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 MAX4204ESA+T meets industry standards.
7.What is the process for return or replacement of MAX4204ESA+T?
All MAX4204ESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4204ESA+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 MAX4204ESA+T part is unused and in its original packaging.
Return procedure for MAX4204ESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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