The MAX9504A/MAX9504B are 3V/5V, ground-sensing amplifiers with a fixed gain of 6dB that provide high output current while consuming only 10nA of current in shutdown mode. The MAX9504A/MAX9504B are ideal for amplifying DC-coupled video inputs from current digital-to-analog converters (DACs). The output can drive two DC-coupled 150Ω back-terminated video loads in portable media players, security cameras, and automotive video applications. The MAX9504B features an internal 160mV input offset to prevent output sync tip clipping when the input signal is close to ground. The MAX9504A/MAX9504B have -3dB large-signal bandwidth of 42MHz and -3dB small-signal bandwidth of 47MHz. The MAX9504A/MAX9504B operate from a single +2.7V to +5.5V supply and consume only 5mA of supply current. The low-power shutdown mode reduces supply current to 10nA, making the MAX9504A/MAX9504B ideal for low-voltage, battery-powered video applications. The MAX9504A/MAX9504B are available in tiny 6-pin µDFN (2mm x 2mm) and 6-pin SOT23 packages, and are specified over the -40°C to +85°C extended temperature range.
The MAX9504A and MAX9504B are 3 V/5 V, ground‑sensing video amplifiers with a fixed 6 dB gain. They provide high output‑current capability while consuming only 5 mA in normal operation and as little as 10 nA in shutdown mode. The devices are offered in tiny 6‑pin µDFN (2 mm × 2 mm) and 6‑pin SOT23 packages and operate from –40 °C to +85 °C.
Typical applications include portable media players, security cameras, and automotive video systems. The MAX9504B adds a 160 mV internal input offset to prevent sync‑tip clipping, while the MAX9504A is suited for chroma signals. Both parts can drive two 150 Ω DC‑coupled video loads simultaneously.
| Quiescent Supply Current | 5 mA |
|---|---|
| Shutdown Supply Current | < 1 µA (≈10 nA) |
| Output Current (sink) | 40 mA (min) |
| Fixed Gain | 6 dB |
| Input Offset (MAX9504B only) | 160 mV |
The devices draw less than 1 µA (about 10 nA) in shutdown mode.
Both amplifiers provide a fixed gain of 6 dB (approximately a voltage gain of 2 V/V).
The MAX9504B includes an internal input offset of 160 mV.