The MAX9507 amplifies and filters standard-definition video signals with low power consumption, video load detection, and internal negative power supply.
The MAX9507 is a low‑power video filter amplifier that operates from a single 1.7 V to 2.625 V supply and delivers a 2 V P‑P output into a 150 Ω load. It uses Maxim’s DirectDrive™ technology to generate an internal negative supply, achieving a high power‑supply rejection ratio of 47 dB at 100 kHz.
The device includes video load detection, an I²C interface for configuration, two SPST analog switches for routing signals, and a fixed voltage gain of 8. Typical specifications such as quiescent power (5.8 mW) and average power (11.7 mW) are provided, along with detailed electrical and timing characteristics.
| Quiescent Power Consumption | 5.8 mW (quiescent), 11.7 mW (average) |
|---|---|
| Voltage Gain (AV) | 8 (fixed) |
| Power‑Supply Rejection Ratio | 47 dB at 100 kHz |
| Output Voltage Swing | 2 V P‑P into 150 Ω load |
| I²C Interface | Provides I²C control for configuration and load status |
It consumes 5.8 mW of quiescent power.
It detects, reports, and reacts to changes in video load, allowing the system to power the video encoder only when a load is present, reducing overall power consumption.
The device includes two single‑pole/single‑throw (SPST) analog switches.