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Analog Devices Inc./Maxim Integrated MAX9502MELT+
- Part No.:
- MAX9502MELT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Video Amps and Modules
- Package:
- 6-WFDFN
- Datasheet:
-
MAX9502MELT+.pdf
- Description:
- MAX9502 2.5V VIDEO AMPLIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:855
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Product details
Overview
The MAX9502MELT+ from Maxim Integrated is a +12dB fixed-gain, 2.5V–3.6V single-supply video amplifier with integrated 4th-order Chebyshev reconstruction filter, DC-coupled I/O, and active-low shutdown. It delivers 2.4VP-P into 150Ω at 3.0V supply, features 5.5MHz passband flatness (±1dB), 55dB attenuation at 27MHz, and 110mV sync-tip level-optimized for composite video signal conditioning in portable imaging systems.
For engineers reviewing the MAX9502MELT+ datasheet, MAX9502MELT+ pinout, MAX9502MELT+ application, or MAX9502MELT+ equivalent, this page provides verified pin functions, gain- and temperature-stable performance data, automotive-grade (-40°C to +85°C) operation, and validated alternatives for video DAC output buffering in space-constrained designs.
Technical Context
The MAX9502MELT+ integrates a passive 4-pole Chebyshev lowpass filter with precisely defined passband (5.5MHz, ±1dB) and stopband rejection (55dB @ 27MHz), enabling NTSC/PAL-compliant composite video reconstruction without external components. Its DC-coupled architecture eliminates AC-blocking capacitors, preserving low-frequency sync-tip integrity and reducing board area.
The output stage is a rail-to-rail capable buffer with fixed +12dB gain, designed to drive 150Ω video loads directly to ground while maintaining 0.4% differential gain/phase error and 30ns group-delay variation across 100kHz–5.5MHz. Shutdown logic (active-low SHDN) reduces current to 0.01µA and enables fast enable/disable timing (tON/tOFF ≤ 800ns/175ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | +12dB (fixed, confirmed for MAX9502M variant; enables direct interface with low-output-voltage DACs) |
| Supply Voltage | 2.5V to 3.6V single supply (supports battery-powered portable systems down to 2.5V) |
| Quiescent Current | 5.3mA typical at 3.0V (enables >20hr runtime on 100mAh Li-ion in always-on video path) |
| Shutdown Current | 0.01µA (reduces standby power to negligible levels in sleep-mode camera modules) |
| Passband Flatness | ±1dB from 100kHz to 5.5MHz (ensures minimal amplitude distortion across NTSC luminance band) |
| Stopband Attenuation | 55dB at 27MHz (suppresses aliasing artifacts from DAC sampling harmonics) |
| Sync-Tip Level | 110mV typical above ground (guarantees linear amplifier operation with standard composite sync levels) |
| Output Swing | 2.4VP-P into 150Ω at VCC = 3.0V (meets SMPTE/NTSC peak white specification with margin) |
Pinout & Package
MAX9502MELT+ uses a lead-free 6-pin µDFN package (1.0mm × 1.5mm × 0.8mm, 0.5mm pitch), optimized for ultra-compact PCB layouts in mobile imaging modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Video Input | DC-coupled analog input accepting 0–0.6V composite video (sync tip to peak white) at 3.0V supply |
| 2 (GND) | Ground Reference | Primary return path for input, output, and supply; requires low-impedance connection to minimize noise coupling |
| 3 (SHDN) | Active-Low Shutdown Control | Logic input: <0.65V (low) disables output and reduces ICC to 0.01µA; >2.0V (high) enables normal operation |
| 4 (VCC) | Positive Supply | 2.5V–3.6V single supply; must be bypassed with 0.1µF capacitor placed adjacent to pin |
| 5 (N.C.) | No Connection | Not internally bonded; must remain unconnected and unstubbed to avoid parasitic coupling |
| 6 (OUT) | Video Output | DC-coupled buffered output driving 150Ω load; level-shifted to 110mV sync-tip; sources current only |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 4th-order Chebyshev filter | Eliminates need for 4 external RC stages; achieves 5.5MHz passband and 55dB@27MHz attenuation in monolithic IC |
| DC-coupled I/O architecture | Removes requirement for input/output AC-coupling capacitors, saving ≥20mm² board area and preserving DC sync integrity |
| +12dB fixed gain | Matches low-voltage output range of modern video DACs (e.g., 0.5VP-P), avoiding external gain staging |
| 0.01µA shutdown current | Reduces system standby power by >99.9% versus active mode-critical for battery life in always-on camera sensors |
| 110mV sync-tip level shift | Ensures amplifier operates in linear region across full video swing (0–2.4VP-P) without clipping sync tips |
| Short-circuit protected output | Internal 95mA trip threshold with auto-retry limits fault energy during cable shorts or ESD events |
Applications
| Mobile Phone Camera Modules | Digital Still Cameras (DSC) |
|---|---|
|
Use Scenario: Driving composite video output from image sensor ASIC to internal display or external AV port. IC Role / Device Role / Timing Role: Final-stage video buffer and reconstruction filter between DAC and 75Ω coaxial output. Use Value: Enables direct DC-coupled connection to DAC, eliminating two 100nF capacitors and associated footprint while meeting NTSC differential gain/phase specs (≤0.4%/≤0.4°). |
Use Scenario: Conditioning video DAC output for LCD viewfinder or HDMI encoder input in compact DSC designs. IC Role / Device Role / Timing Role: Signal integrity conditioner providing gain, filtering, and level-shifting before transmission. Use Value: Delivers 2.4VP-P into 150Ω at 3.0V supply with 30ns group-delay variation-preserving edge fidelity in multiburst test patterns per SMPTE RP-168. |
| Automotive Rear-View Cameras | Security/CCTV DVR Inputs |
|
Use Scenario: Amplifying and filtering analog video from backup camera before feeding to infotainment head unit. IC Role / Device Role / Timing Role: Temperature-stable video driver operating across -40°C to +85°C ambient. Use Value: Maintains ±1dB passband flatness and <0.4% differential gain error over full automotive temperature range-ensuring consistent color fidelity in varying climates. |
Use Scenario: Reconditioning legacy analog CCTV signals before digitization in multi-channel DVR systems. IC Role / Device Role / Timing Role: Reconstruction filter and impedance-matched driver for 75Ω coaxial video lines. Use Value: 55dB stopband attenuation at 27MHz suppresses high-frequency noise from long cable runs, improving SNR by ≥15dB versus unfiltered paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar video amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9502GELT+ | +6dB gain (vs. +12dB); identical package, temp range, and filter specs | Suitable when DAC output amplitude exceeds 1.0VP-P, requiring less gain to meet 2VP-P video standard | Select MAX9502GELT+ if system DAC output is ≥1.0VP-P; otherwise MAX9502MELT+ ensures full 2.4VP-P swing at 3.0V supply |
| MAX9505EUT+ | Includes analog video switch + DirectDrive™ output; 8-pin TQFN; no internal filter | Supports multiplexed video sources (e.g., dual-camera selection) but requires external LPF for reconstruction | Choose MAX9505EUT+ only if source switching is required; MAX9502MELT+ provides superior integration for single-DAC, filter-critical paths |
Compared with MAX9502GELT+, MAX9502MELT+ delivers +6dB higher gain to accommodate lower-voltage DAC outputs without external amplification, while matching all thermal, packaging, and filtering specs. Against MAX9505EUT+, it trades switch functionality for monolithic filter integration-reducing BOM count by 4–6 passive components in fixed-source video chains.
Availability
MAX9502MELT+ is available at Aetrix Electronics and suitable for mobile phone camera modules, digital still cameras, and automotive rear-view systems requiring stable component supply, extended temperature support (-40°C to +85°C), and lead-free µDFN packaging.
Supply support for MAX9502MELT+ 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 power, sensing, connectivity, and signal conditioning in demanding environments.
The MAX9502 product line targets portable and automotive video signal chains, delivering integrated reconstruction filtering, DC-coupled amplification, and ultra-low-power operation in sub-2mm² packages.
FAQ
What is the exact gain setting of the MAX9502MELT+ and how is it confirmed?
The MAX9502MELT+ has a fixed +12dB voltage gain, explicitly specified in the Ordering Information table (GAIN = +12) and confirmed in the DC Electrical Characteristics table (AV = 11.5dB to 12.5dB, typ 12dB). This gain is factory-trimmed and invariant across temperature and supply voltage within 2.5V–3.6V, making MAX9502MELT+ suitable for precision video amplitude control without external feedback networks.
Does the MAX9502MELT+ require external reconstruction filtering?
No, the MAX9502MELT+ integrates a 4th-order Chebyshev lowpass filter with a 5.5MHz passband (±1dB) and 55dB attenuation at 27MHz. This monolithic filter replaces discrete RC ladder networks, eliminating four external components and associated layout sensitivity. The filter is optimized for NTSC/PAL composite video and is fully characterized in the datasheet's AC Electrical Characteristics section.
What is the maximum output voltage swing of the MAX9502MELT+ into a 150Ω load?
The MAX9502MELT+ delivers 2.4VP-P into a 150Ω load when powered from a 3.0V supply, as specified in the DC Electrical Characteristics table under "Output Voltage Swing" (VOUT). At 2.5V supply, it provides 2.23VP-P. This meets or exceeds SMPTE/NTSC peak white requirements (2.0VP-P) with margin, ensuring robust signal integrity in real-world cabling scenarios.
How does the shutdown function operate on the MAX9502MELT+?
The MAX9502MELT+ features an active-low SHDN pin: pulling SHDN ≤0.65V (typ) places the device in shutdown mode, reducing supply current to 0.01µA (max 1µA). The output enters high-impedance state (ROUT(OFF) = 4kΩ), and enable/disable times are 800ns (tON) and 175ns (tOFF). This allows rapid power gating in battery-sensitive applications like smartphone camera subsystems.
Is the MAX9502MELT+ compatible with DC-coupled video DAC outputs?
Yes-the MAX9502MELT+ has fully DC-coupled input and output, enabling direct connection to current-output video DACs without AC-blocking capacitors. Its input accepts 0–0.6V at 3.0V supply (sync tip to peak white), and its output is level-shifted to 110mV sync-tip, preserving DC reference integrity essential for composite video timing and black-level stability.
MAX9502MELT+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 6-WFDFN
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- Reconstruction Filter
- Output Type:
- -
- Number of Circuits:
- 1
- -3db Bandwidth:
- -
- Slew Rate:
- -
- Current - Supply:
- 5.3 mA
- Current - Output / Channel:
- 95 mA
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 3.6V
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- -
- Supplier Device Package:
- 6-µDFN (1.5x1)
MAX9502MELT+ FAQ
1.How can I place an order for MAX9502MELT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9502MELT+ 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 MAX9502MELT+ reliable?
The price and inventory of MAX9502MELT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9502MELT+ is usually 5 days.
3.What payment methods are accepted for MAX9502MELT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9502MELT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9502MELT+?
MAX9502MELT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9502MELT+ 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 MAX9502MELT+?
For technical support, including MAX9502MELT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9502MELT+ requirements.
6.How does Aetrix verify that MAX9502MELT+ is sourced from the original manufacturer or authorized distributors?
All MAX9502MELT+ 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 MAX9502MELT+ meets industry standards.
7.What is the process for return or replacement of MAX9502MELT+?
All MAX9502MELT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX9502MELT+, 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 MAX9502MELT+ part is unused and in its original packaging.
Return procedure for MAX9502MELT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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