The ADCMP567 is a dual ultrafast voltage comparator with features including 250ps propagation delay input to output, 50ps propagation delay dispersion, differential PECL compatible outputs, and differential latch control.
The ADCMP567 is an ultrafast voltage comparator fabricated on Analog Devices’ proprietary XFCB process. It offers a typical propagation delay of 250 ps with less than 35 ps over‑drive dispersion, a wide input common‑mode range of –2.0 V to +3.0 V, and differential PECL‑compatible outputs that can directly drive 50 Ω transmission lines.
The device is supplied in a 32‑lead LFCSP package and includes latch enable inputs for track‑and‑hold operation. Key electrical characteristics include a 5 GHz equivalent input rise‑time bandwidth, >65 dB power‑supply sensitivity, and a toggle rate exceeding 5 Gbps. It is intended for high‑speed instrumentation, logic‑analyzer front ends, clock drivers, and other high‑speed signal‑processing applications.
| Propagation Delay (typical) | 250 ps |
|---|---|
| Input Common‑Mode Range | -2.0 V to +3.0 V |
| Input Differential Voltage | +5 V |
| Output Rise Time (20%‑80%) | 175 ps |
| Power Supply Sensitivity | >65 dB |
| Toggle Rate | >5 Gbps |
The ADCMP567 has a typical propagation delay of 250 ps.
It uses a +5.0 V positive supply, a –5.2 V negative supply, and a 3.3 V logic supply.
The allowed input common‑mode range is from –2.0 V to +3.0 V.
The device can toggle at rates greater than 5 Gbps.