AD8611ARZ

The AD8611ARZ from Analog Devices is a single ultrafast comparator designed for high-speed applications requiring short propagation delays. With a typical propagation delay of 4 ns at 5V and a maximum of 5.5 ns, it is well-suited for timing circuits, line receivers, and clock distribution. The device includes a latch function for holding the output state, though the latch is not functional when the supply voltage is below 4.3 V.

It operates from a single 3 V to 5 V supply and draws a typical supply current of 10 mA. The output is complementary TTL, providing both QA and QA outputs. Key electrical characteristics include an input offset voltage of 7 mV max, input bias current of 6 µA typical, and common-mode rejection ratio of 85 dB typical. The voltage gain is typically 69.54 dB.

The comparator is housed in an 8-lead narrow body SOIC package (8-SOIC) with dimensions of 5 mm x 4 mm and a height of 1.5 mm. It is rated for surface mount assembly and operates over the industrial temperature range of -40°C to +85°C. The device is based on bipolar technology and does not include a shutdown feature.

Typical applications include high-speed timing, clock recovery, phase detection, and zero-crossing detectors. The AD8611ARZ is also suitable for high-speed analog-to-digital converter interfaces and PCMCIA card applications.