Overview
Features and Benefits
- Unity-Gain Bandwidth of 70MHz
- Low Input Capacitance: 4pF
- No Frequency Compensation Required
- Low Input Blas Current: 100pA
- Directly Drives 75Ω Cables
- High Isolation Between Amplifiers: 72dB at 5MHz
- Low Offset Voltage: 2mV
Product Details
The MAX457 contains two unity-gain stable video amplifiers that are capable of driving the 75Ω loads with a -3dB bandwidth of 70MHz. The amplifiers operate from ±5V supplies and together consume about 350mW of power. Closed loop again is set by tow external resistors. The pinout of the MAX457 follows that of conventional 8-pin, dual op amps.
The amplifiers require no external compensation and because of the CMOS process offer low input bias current of typically 100pA. The isolation between the amplifiers is typically 72dB at 5MHz and differential phase and gain are 0.2 degrees and 0.5% respectively.
APPLICATIONS
- 75Ω Cable Drivers
- Output Amplifiers for Video Crosspoint Switches
- High Speed, Low Gain Applications
- Driving Flash Converters
- Video Distribution Amplifiers
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX457CPA+ | Material Declaration | Reliability Data | Plastic Dual-In-Line, Narrow (0.3in) | |
| MAX457CSA+ | Material Declaration | Reliability Data | Small-Outline IC, Narrow (0.15in) | |
| MAX457CSA+T | Material Declaration | Reliability Data | Small-Outline IC, Narrow (0.15in) | |
| MAX457EPA+ | Material Declaration | Reliability Data | Plastic Dual-In-Line, Narrow (0.3in) | |
| Wafer Fabrication Data |
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