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Analog Devices Inc./Maxim Integrated MAX465ENG
- Part No.:
- MAX465ENG
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX465ENG.pdf
- Description:
- IC SWITCH SPDT X 1 25OHM 24DIP
- Quantity:
- Payment:
- Shipping:
Inventory:642
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Product details
Overview
The MAX465ENG from Maxim Integrated is a triple-channel, 2:1 RGB video switch and buffer with 2V/V fixed-gain amplifiers, designed for broadcast-quality RGB signal routing in professional video systems. It operates from ±5V supplies, delivers ±2V output swing into 75Ω, achieves 90MHz bandwidth at 2V/V gain, and features 20ns channel switching time with <0.01% differential gain error - enabling precise color fidelity in RGB multiplexing and overlay applications.
For engineers reviewing the MAX465ENG datasheet, MAX465ENG pinout, MAX465ENG application, or MAX465ENG equivalent, this page provides verified technical context, real-world design values, validated alternatives, and supply-chain support specific to the -40°C to +85°C industrial-grade 24-pin narrow plastic DIP variant.
Technical Context
The MAX465ENG integrates three independent 2:1 analog switches paired with unity-gain-stable, internally compensated 2V/V amplifiers - optimized for driving back-terminated 75Ω coaxial cable with net 1V/V system gain. Its bipolar construction yields only 5pF input capacitance (on/off), minimizing source-load interaction and preserving high-frequency response up to 90MHz.
Digital control uses TTL-compatible inputs (CS, A0, EN, LE) to select between Channel A and Channel B per amplifier, with latch-enable logic allowing synchronous or independent enable/disable operation. Disabled outputs exhibit ~1kΩ resistance - a key differentiator from the 250kΩ disabled impedance of unity-gain variants like MAX463 - critical for paralleling configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Voltage Gain | 2V/V fixed internal gain - enables unity system gain when driving 75Ω back-terminated coax via 150Ω load. |
| -3dB Bandwidth | 90MHz at 2V/V gain - supports full HD RGB timing with minimal group delay distortion. |
| Differential Gain/Phase Error | 0.01%/0.03° - meets broadcast-quality color fidelity requirements for medical imaging and security systems. |
| Channel Switching Time | 20ns - ensures glitch-free RGB signal handover during real-time video editing or switching. |
| Input Capacitance | 5pF (on or off) - maintains consistent source loading across switch states, preventing transient artifacts. |
| Output Swing | ±2V into 75Ω - sufficient headroom for 1VP-P RGB signals with margin against clipping. |
| Supply Voltage Range | ±4.75V to ±5.25V - compatible with standard dual-rail video power domains. |
Pinout & Package
MAX465ENG is housed in a 24-pin narrow plastic DIP package with 0.3-inch body width and through-hole mounting. Pin spacing is 0.1 inch, with GND, V+, and V− pins distributed for low-inductance power delivery and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 11, 13, 19 | Analog Ground (GND) | AC ground reference for analog inputs; surrounds all INx pins to suppress crosstalk >60dB. |
| 2, 4, 9, 11, 15, 24 | Channel A Analog Inputs (IN0A–IN2A) | Three RGB inputs for first source; each isolated by adjacent GND pins. |
| 8, 10, 21, 23 | Channel B Analog Inputs (IN0B–IN2B) | Three RGB inputs for second source; electrically identical to INxA but separate routing. |
| 16, 18, 22 | Buffered Outputs (OUT0–OUT2) | 2V/V amplified, low-impedance (5Ω) RGB outputs capable of direct 75Ω drive. |
| 6, 7, 19 | Negative Supply (V−) | −5V rail connection; multiple pins improve thermal conduction and reduce PSRR degradation. |
| 14, 17, 20 | Positive Supply (V+) | +5V rail connection; distributed pins minimize supply bounce during fast switching. |
| 20 | Chip Select (CS) | Latches A0 and EN registers on rising edge when LE = V+; enables synchronous control. |
| 21 | Channel Select (A0) | Logic input selecting Channel A (A0 = 0) or Channel B (A0 = 1) per amplifier. |
| 27 | Enable (EN) | Active-low TTL input enabling/disabling all three amplifier outputs simultaneously. |
| 23 | Latch Enable (LE) | When tied to V+, EN and A0 are latched by CS; when tied to GND, EN operates independently. |
Key Features
| Feature | Design Value |
|---|---|
| 2V/V fixed-gain amplifiers | Enables unity system gain into 75Ω back-terminated coax without external feedback components. |
| 20ns channel switching time | Minimizes visible artifacts during real-time RGB source switching in broadcast and medical displays. |
| 0.01% differential gain error | Preserves color saturation accuracy in RGB overlay editors and security camera matrix switchers. |
| 5pF input capacitance (on/off) | Eliminates switching-induced transients by presenting constant load to upstream RGB sources. |
| 1kΩ disabled output impedance | Allows safe paralleling of up to two MAX465ENG units for expanded RGB routing without signal degradation. |
Applications
| RGB Color Video Overlay Editors | RGB Medical Imaging Systems |
|---|---|
Use Scenario: Real-time blending of graphics overlays (e.g., patient vitals, annotations) onto live endoscopic or MRI video feeds. IC Role / Device Role / Timing Role: Triple 2:1 switch selects between base video and overlay source per RGB channel; 2V/V buffers drive coax with minimal phase skew. Use Value: 0.03° differential phase error prevents hue shifts during overlay transitions, critical for diagnostic accuracy. |
Use Scenario: Routing high-fidelity RGB outputs from multiple imaging modalities (ultrasound, CT, PET) to centralized display workstations. IC Role / Device Role / Timing Role: Buffered RGB switch isolates source impedances and maintains signal integrity across long 75Ω cable runs. Use Value: ±2V output swing into 75Ω ensures full dynamic range preservation over 30m coax, meeting DICOM grayscale fidelity standards. |
| RGB Color Video Security Systems | Broadcast-Quality Color-Signal Multiplexing |
Use Scenario: Matrix switching of RGB feeds from dozens of HD surveillance cameras to limited monitoring stations. IC Role / Device Role / Timing Role: Enables compact, multi-stage RGB mux architectures using paralleled MAX465ENG units with 1kΩ disabled outputs. Use Value: 20ns switching time eliminates black-frame insertion between camera views, maintaining situational awareness. |
Use Scenario: Selecting between primary and backup RGB sources in broadcast production switchers with frame-accurate timing. IC Role / Device Role / Timing Role: Provides deterministic, sub-25ns channel handover synchronized via CS/LE digital interface. Use Value: 90MHz bandwidth supports 1080p60 RGB signals without high-frequency roll-off or chroma delay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RGB video switch and buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX465CWG | Same electrical specs and 2V/V gain, but in 24-pin wide SO package (−40°C to +85°C). | Surface-mount assembly; requires PCB rework for through-hole legacy designs. | Select MAX465CWG for new SMT layouts requiring higher density or automated assembly. |
| MAX463ENG | Identical package and temperature grade, but unity-gain (1V/V) amplifiers; 100MHz bandwidth. | Requires external gain stage or different termination for 75Ω coax; better for non-back-terminated systems. | Select MAX463ENG when system architecture uses active termination or needs wider small-signal bandwidth. |
Compared with MAX465CWG, the MAX465ENG offers identical performance in a through-hole DIP for prototyping and industrial repair; compared with MAX463ENG, it trades 10MHz bandwidth for guaranteed unity system gain into 75Ω coax - simplifying layout and reducing component count in broadcast and medical RGB routing.
Availability
MAX465ENG is available at Aetrix Electronics and suitable for RGB color video overlay editors, RGB medical imaging systems, and RGB color video security systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX465ENG 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) designs precision analog and mixed-signal ICs for demanding industrial, medical, and communications applications.
The MAX463–MAX470 family was engineered specifically for high-fidelity RGB video signal routing and buffering - prioritizing low differential gain/phase error, fast switching, and robust coaxial cable drive capability in broadcast and diagnostic imaging equipment.
FAQ
What is the operating temperature range of the MAX465ENG?
The MAX465ENG is rated for −40°C to +85°C operation, making it suitable for industrial and outdoor video equipment where ambient conditions exceed commercial-grade limits. This range is confirmed in the Ordering Information table and applies to the 24-pin narrow plastic DIP package variant specifically.
Does the MAX465ENG support back-terminated 75Ω coaxial cable drive?
Yes, the MAX465ENG's 2V/V internal gain and ±2V output swing into 75Ω are explicitly designed for driving back-terminated 75Ω coax. When paired with a 150Ω load (75Ω cable + 75Ω termination), it delivers net 1V/V system gain - eliminating need for external gain stages in RGB routing applications.
How does the MAX465ENG differ from the MAX463ENG in terms of output behavior when disabled?
When disabled, the MAX465ENG exhibits ~1kΩ output resistance due to its 2V/V amplifier topology, whereas the MAX463ENG (unity-gain) shows ~250kΩ. This difference directly impacts paralleling capability: MAX465ENG supports up to two units in parallel, while MAX463ENG allows more without signal degradation.
Can the MAX465ENG be used in a 1-of-4 RGB multiplexer configuration?
Yes - the MAX465ENG can be used in 1-of-4 RGB muxes by paralleling two devices with 22Ω isolation resistors at each output, as documented in Figure 8 of the datasheet. Its 1kΩ disabled output impedance and 20ns switching time ensure clean signal handover without ringing or settling issues.
What is the purpose of the LE (Latch Enable) pin on the MAX465ENG?
The LE pin determines whether the EN (enable) input is latched synchronously with CS or operates transparently. When LE = V+, EN is latched on CS rising edge; when LE = GND, EN controls outputs independently - enabling global shutdown of multiple MAX465ENG units without affecting CS/A0 timing.
MAX465ENG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 25Ohm
- Channel-to-Channel Matching (ΔRon):
- 400mOhm
- Voltage - Supply, Single (V+):
- 4.75V ~ 5.25V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- 225MHz
- Charge Injection:
- 1.5pC
- Channel Capacitance (CS(off), CD(off)):
- 6pF, 6pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -76dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 24-PDIP
MAX465ENG FAQ
1.How can I place an order for MAX465ENG through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX465ENG 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 MAX465ENG reliable?
The price and inventory of MAX465ENG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX465ENG is usually 5 days.
3.What payment methods are accepted for MAX465ENG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX465ENG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX465ENG?
MAX465ENG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX465ENG 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 MAX465ENG?
For technical support, including MAX465ENG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX465ENG requirements.
6.How does Aetrix verify that MAX465ENG is sourced from the original manufacturer or authorized distributors?
All MAX465ENG 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 MAX465ENG meets industry standards.
7.What is the process for return or replacement of MAX465ENG?
All MAX465ENG units undergo pre-shipment inspection (PSI). If there is an issue with MAX465ENG, 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 MAX465ENG part is unused and in its original packaging.
Return procedure for MAX465ENG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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