ADA4830-1

The short to battery protection that is integrated into the ADA4830-1 employs fast switching circuitry to clamp and hold internal voltage nodes at a safe level when an input overvoltage condition is detected. This protection allows the inputs of the ADA4830-1 to be directly connected to a remote video source, such as a rearview camera, without the need for large expensive series capacitors. The ADA4830-1 can withstand direct short to battery voltages as high as 18 V on its input pins.

The ADA4830-1 is designed to operate at supply voltages as low as 2.9 V and as high as 5.5 V, using only 6.8 mA of supply current per channel. The device provides true single-supply capability, allowing the input signal to extend 8.5 V below the negative rail and to 8.5 V above ground on a single 5 V supply. At the output, the amplifier can swing to within 250 mV of either supply rail into a 150 Ω load.

The ADA4830-1 presents a gain of 0.5 V/V at its output. This is designed to keep the video signal within the allowed range of the video decoder, which is typically 1 V p-p or less.

The ADA4830-1 is available in a 3 mm × 3 mm, 8-lead LFCSP package and is specified for operation over the automotive temperature range of −40°C to +125°C.

Applications

• Automotive vision systems
• Automotive infotainment
• Surveillance systems