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Analog Devices Inc./Maxim Integrated MAX7450ESA+T
- Part No.:
- MAX7450ESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Video Processing
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
MAX7450ESA+T.pdf
- Description:
- IC VIDEO CONDITIONER 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,763
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Product details
Overview
The MAX7450ESA+T from Maxim Integrated is a standard-definition video signal conditioner IC designed for front-end analog video processing in security and switching systems. It restores DC blanking level to GND, provides ±6dB automatic gain control (AGC), integrates a 10MHz out-of-band noise filter, and delivers 0dB or +6dB output buffer gain into 150Ω loads - enabling robust interface with crosspoint switches like the MAX4358.
For engineers reviewing the MAX7450ESA+T datasheet, MAX7450ESA+T pinout, MAX7450ESA+T application, or MAX7450ESA+T equivalent, key selection criteria include dual ±5V supply operation, back-porch clamping to ground, AGC disable control via AGCD pin, and guaranteed performance over -40°C to +85°C in the 8-pin SO-EP package.
Technical Context
The MAX7450ESA+T implements a concurrent dual-loop architecture: a fast back-porch clamp (settling within 70 lines) stabilizes DC level at GND, while a digitally stepped AGC loop (1000–64,000 line settling) normalizes sync amplitude across ±6dB input range. Its 2nd-order lowpass filter rejects high-frequency noise introduced by long coaxial cables.
It features logic-controlled gain selection (GSET) and AGC enable/disable (AGCD), both compatible with 0.3×VCC/0.7×VCC thresholds, and drives 150Ω video loads with ≤0.6% differential gain error and ≤0.6° differential phase error - critical for maintaining color fidelity in composite video paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±5V ±5% - enables direct interface with legacy analog video systems using dual-rail supplies. |
| Clamp Accuracy | ±50mV relative to GND - ensures precise DC restoration for OSD insertion and ADC sampling without tilt distortion. |
| AGC Input Range | ±6dB - corrects amplitude errors from cable loss or source mismatch while preserving sync-to-active ratio integrity. |
| Noise-Filter Cutoff | 10MHz - suppresses out-of-band interference (e.g., RF pickup, switching noise) without degrading luminance bandwidth. |
| Output Dynamic Range | 2VP-P to 2.4VP-P - supports full-swing video signals into 150Ω loads with minimal headroom compression. |
| Differential Gain/Phase | 0.2–0.6% / 0.2–0.6° - meets NTSC/PAL broadcast-grade linearity requirements for color accuracy. |
| Power Supply Rejection | 35dB at 3.5MHz - maintains signal integrity despite ripple on ±5V rails in dense PCB layouts. |
Pinout & Package
Package: 8-pin SOIC with exposed pad (SO-EP), footprint code S8E-12; EP must be connected to VSS (-5V) for thermal and electrical performance. Specified for -40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Positive power supply | +5V rail; requires local 1µF + 0.1µF bypassing to GND for stable AGC and clamp reference. |
| 2 IN | AC-coupled video input | Accepts composite video via 0.1µF capacitor; internal clamp references back porch during horizontal blanking. |
| 3 GND | Analog ground reference | Common return for clamp feedback and output driver; must be low-impedance plane adjacent to EP. |
| 4 VSS | Negative power supply | -5V rail; EP connection point; bypassing identical to VCC ensures symmetrical PSRR. |
| 5 AGCD | AGC disable control | Logic-high (>3.5V) disables AGC loop; allows manual gain calibration or fault isolation. |
| 6 OUT | Video output driver | Drives 150Ω load with 0dB/+6dB selectable gain; output swing up to 2.4VP-P with <0.6% dG/dθ. |
| 7 GSET | Buffer gain select | High = +6dB (2V/V), Low = 0dB (1V/V); sets output amplitude independent of AGC gain adjustment. |
| 8 LOS | Loss-of-sync indicator | Open-drain logic-high after ≥15 missing sync lines; used for camera fault detection in security DVRs. |
Key Features
| Feature | Design Value |
|---|---|
| Back-porch clamp to GND | Eliminates need for large AC-coupling capacitors, reducing board space and preventing line-time tilt distortion. |
| ±6dB AGC with digital stepping | Normalizes sync amplitude across varying cable lengths without oscillation, supporting stable OSD overlay. |
| 10MHz 2nd-order lowpass filter | Rejects high-frequency noise from long coax runs while preserving luminance bandwidth up to 5MHz. |
| 0dB/+6dB output buffer gain | Matches input levels to downstream crosspoint switches (e.g., MAX4358) or video decoders without external amplification. |
| LOS detector with 15-line threshold | Provides deterministic fault signaling for camera disconnect or sync loss in multi-channel security systems. |
Applications
| Security Video Systems | Video-Switching Systems |
|---|---|
|
Use Scenario: Multi-camera analog CCTV system with centralized DVR recording and real-time display. IC Role / Device Role / Timing Role: Front-end signal conditioner restoring DC level and amplitude before routing through 32×16 crosspoint switch (e.g., MAX4358). Use Value: Enables reliable OSD insertion and consistent brightness across cameras with varying cable lengths and termination mismatches. |
Use Scenario: Matrix switcher distributing composite video from 32 sources to 16 monitors in surveillance control rooms. IC Role / Device Role / Timing Role: Standard-definition video front-end ensuring uniform signal level and timing stability across all input channels. Use Value: Prevents sync loss-induced blackouts and eliminates manual per-channel gain trimming during system commissioning. |
| Legacy Broadcast Monitoring | Analog-to-Digital Conversion Interface |
|
Use Scenario: Analog waveform monitor receiving feeds from aging broadcast equipment with degraded signal integrity. IC Role / Device Role / Timing Role: Signal restoration stage correcting amplitude drift and DC offset prior to measurement circuitry. Use Value: Maintains accurate luma/chroma separation and sync pulse amplitude for compliance testing against SMPTE RP-168. |
Use Scenario: Feeding conditioned composite video into an analog video decoder (e.g., MAX9526) for digitization. IC Role / Device Role / Timing Role: DC-coupled video driver providing stable blanking level and full-scale amplitude to ADC input. Use Value: Ensures optimal utilization of ADC dynamic range and eliminates clipping or underutilization due to input-level variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar video signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX7451ESA+T | Operates from ±3.3V supplies; same pinout and feature set but lower supply current (30mA vs. 35mA). | Preferred in newer low-voltage designs where ±5V rails are unavailable; not suitable for legacy ±5V infrastructure. | Select MAX7451ESA+T only when system power architecture mandates ±3.3V operation and thermal budget permits slightly reduced PSRR. |
| MAX7452ESA+T | Single +5V supply; adjustable back-porch level via BPLVL pin; no VSS pin; exposed pad tied to GND. | Required for single-supply ADC interfacing where DC-coupled black-level control is needed (e.g., MAX9526). | Choose MAX7452ESA+T when integrating with single-ended ADC inputs requiring programmable blanking level, not for dual-supply crosspoint systems. |
Compared with MAX7451ESA+T and MAX7452ESA+T, the MAX7450ESA+T is uniquely suited for existing ±5V analog video infrastructure, offering highest PSRR and guaranteed GND-referenced clamping - essential for interoperability with legacy crosspoint switches and OSD generators.
Availability
MAX7450ESA+T is available at Aetrix Electronics and suitable for security video systems, analog video switching matrices, and broadcast monitoring equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX7450ESA+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 power management ICs for industrial, communications, and consumer applications.
The MAX7450ESA+T belongs to Maxim's video signal conditioning product line, engineered specifically to restore analog video integrity in SD-CCTV, broadcast monitoring, and matrix switching systems where DC level stability and amplitude normalization are critical.
FAQ
What is the supply voltage requirement for the MAX7450ESA+T?
The MAX7450ESA+T requires dual ±5V ±5% supplies - VCC = +5V and VSS = -5V - with mandatory 1µF and 0.1µF bypass capacitors placed close to pins 1 and 4. This dual-rail configuration enables GND-referenced clamping and high PSRR performance critical for analog video fidelity in the MAX7450ESA+T.
How does the MAX7450ESA+T handle loss of sync detection?
The MAX7450ESA+T asserts its open-drain LOS pin high when sync is absent for ≥15 consecutive horizontal lines, indicating camera failure or cable disconnection. The LOS output is TTL-compatible when pulled up externally and directly interfaces with microcontroller GPIOs or FPGA status registers in security DVR systems using the MAX7450ESA+T.
Can the MAX7450ESA+T drive a 150Ω video load directly?
Yes, the MAX7450ESA+T output buffer is specified to drive a 150Ω load to 2.4VP-P with ≤0.6% differential gain error. With GSET = 1, it delivers +6dB (2V/V) gain; with GSET = 0, it delivers 0dB (1V/V) gain - eliminating need for external amplifiers when interfacing with standard video equipment or crosspoint switches in systems using the MAX7450ESA+T.
What is the function of the AGCD pin on the MAX7450ESA+T?
The AGCD pin disables the automatic gain control loop when driven high (>3.5V). This allows engineers to bypass AGC during system calibration or fault diagnosis, verifying signal path integrity without closed-loop interaction. When AGCD = GND, the MAX7450ESA+T performs full ±6dB amplitude correction - a key capability for maintaining consistent video levels across variable-length coaxial runs in the MAX7450ESA+T.
Is the MAX7450ESA+T compatible with the MAX4358 crosspoint switch?
Yes, the MAX7450ESA+T is explicitly designed for direct interface with the MAX4358. Both devices feature GND-referenced outputs, matching DC levels and amplitude ranges (1VP-P or 2VP-P), enabling seamless integration in 32×16 video switching systems without level-shifting components - a core interoperability feature confirmed in Maxim's application documentation for the MAX7450ESA+T.
MAX7450ESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Conditioner
- Applications:
- Professional Video
- Standards:
- -
- Control Interface:
- -
- Voltage - Supply:
- -
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC-EP
MAX7450ESA+T FAQ
1.How can I place an order for MAX7450ESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX7450ESA+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 MAX7450ESA+T reliable?
The price and inventory of MAX7450ESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX7450ESA+T is usually 5 days.
3.What payment methods are accepted for MAX7450ESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX7450ESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX7450ESA+T?
MAX7450ESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX7450ESA+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 MAX7450ESA+T?
For technical support, including MAX7450ESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX7450ESA+T requirements.
6.How does Aetrix verify that MAX7450ESA+T is sourced from the original manufacturer or authorized distributors?
All MAX7450ESA+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 MAX7450ESA+T meets industry standards.
7.What is the process for return or replacement of MAX7450ESA+T?
All MAX7450ESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX7450ESA+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 MAX7450ESA+T part is unused and in its original packaging.
Return procedure for MAX7450ESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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