The AD8468 is a fast comparator fabricated on XFCB2.0, anAnalog Devices, Inc., proprietary process. This comparator isexceptionally versatile and easy to use. Features include an inputrange from −0.2 V to V_CC + 0.2 V, low noise, TTL-/CMOS-compatibleoutput drivers, and shutdown inputs. The deviceoffers 40 ns propagation delays driving a 15 pF load with 10 mVoverdrive on 500 μA typical supply current.

A flexible power supply scheme allows the device to operate with a single 2.5 V positive supply with a −0.2 V to + 2.7 V input signal range and up to a 5.5 V positive supply with a −0.2 V to +5.7 V input signal range."

The TTL-/CMOS-compatible output stage is designed to driveup to 15 pF with full rated timing specifications and to degradein a graceful and linear fashion as additional capacitance isadded. The input stage of the comparator offers robust protectionagainst large input overdrive, and the outputs do not phasereverse when the valid input signal range is exceeded.The AD8468 is available in a tiny 6-lead SC70 package with asingle-ended output and a shutdown pin.

Applications

• Automotive applications
• High speed instrumentation
• Clock and data signal restoration
• Logic level shifting or translation
• High speed line receivers
• Threshold detection
• Peak and zero-crossing detectors
• High speed trigger circuitry
• Pulse-width modulators
• Current-/voltage-controlled oscillators

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.