ADCMP572

Ultrafast 3.3 V Single-Supply Comparator w/CML Output Drivers
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Product Details

The ADCMP572 and ADCMP573 are ultrafast comparators fabricated on Analog Devices’ proprietary XFCB3 Silicon Germanium (SiGe) bipolar process. The ADCMP572 features CML output drivers and latch inputs, and the ADCMP573 features reduced swing PECL (RSPECL) output drivers and latch inputs.

Both devices offer 150 ps propagation delay and 80 ps minimum pulse width for 10 Gbps operation with 200 fs rms random jitter (RJ). Overdrive and slew rate dispersion are typically less than 15 ps.

A flexible power supply scheme allows both devices to operate with a single 3.3 V positive supply and a −0.2 V to +1.2 V input signal range or with split input/output supplies to support a wider −0.2 V to +3.2 V input signal range and an independent range of output levels. 50 Ω on-chip termination resistors are provided at both inputs with the optional capability to be left open (on an individual pin basis) for applications requiring high impedance inputs.

The CML output stage is designed to directly drive 400 mV into 50 Ω transmission lines terminated to between 3.3 V to 5.2 V. The RSPECL output stage is designed to drive 400 mV into 50 Ω terminated to VCCO − 2 V and is compatible with several commonly used PECL logic families. The comparator input stage offers robust protection against large input overdrive, and the outputs do not phase reverse when the valid input signal range is exceeded. High speed latch and programmable hysteresis features are also provided.

The ADCMP572 and ADCMP573 are available in a 16-lead LFCSP package and have been characterized over an extended industrial temperature range of −40°C to +125°C.

Product Lifecycle

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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.

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Most Helpful Review

by kzmk
The extreamly high 8GHz input bandwidth enabled us to use it in a direct pulse peak detection UWB impulse radio receiver. Tried other products too, but for wide stocked electronics parts this was the only product to meet our requirements. To detect a 300ps wide pulse ~60-70mV overdrive was needed, this is much better than competitors. The hysteresis function works like charm, however we would be more happy if the maximum 50mV hysteresis level could be increased. Also would be happy if power consumption can be optimized. We measured 106mA current draw from 3V in zero crossing detector configuration.

All Reviews

by kzmk, 20 Jan 14
Ultra high speed comparator for UWB impulse detection
The extreamly high 8GHz input bandwidth enabled us to use it in a direct pulse peak detection UWB impulse radio receiver. Tried other products too, but for wide stocked electronics parts this was the only product to meet our requirements. To detect a 300ps wide pulse ~60-70mV overdrive was needed, this is much better than competitors. The hysteresis function works like charm, however we would be more happy if the maximum 50mV hysteresis level could be increased. Also would be happy if power consumption can be optimized. We measured 106mA current draw from 3V in zero crossing detector configuration.
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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.