Analog Devices Inc. ADCMP563BCPZ-R2

Overview

ADCMP563BCPZ-R2 from Analog Devices is a dual, high-speed ECL comparator IC designed for precision timing-critical signal conditioning in high-frequency analog-to-digital interfaces and test instrumentation. It delivers 700 ps propagation delay, 75 ps overdrive dispersion, ±2.0 V to +3.0 V input common-mode range, and differential ECL-compatible outputs driving 50 Ω to −2 V. It operates across −40°C to +85°C and supports latch/track-and-hold modes via dedicated LEA/LEB inputs.

For engineers reviewing the ADCMP563BCPZ-R2 datasheet, ADCMP563BCPZ-R2 pinout, ADCMP563BCPZ-R2 application, or ADCMP563BCPZ-R2 equivalent, key selection criteria include propagation delay consistency under varying overdrive, ECL-level output drive capability, latch control timing (tS/tH = 200 ps), input protection robustness, and LFCSP thermal performance (θJA = 70°C/W).

Technical Context

The ADCMP563BCPZ-R2 integrates two independent high-speed comparators on Analog Devices' XFCB process, each with fully differential inputs and complementary ECL outputs. Its architecture minimizes propagation delay dispersion (<75 ps over 20 mV–1.5 V overdrive) and provides internal latch pull-up resistors enabling open-circuit tracking mode.

It features programmable hysteresis only on the ADCMP564 variant-ADCMP563BCPZ-R2 lacks hysteresis pins-and supports dual supply operation (VCC = +5.0 V, VEE = −5.2 V). Input stage design ensures stable propagation delay across −2.0 V to +3.0 V common-mode voltage, while output rise/fall times (530 ps/450 ps) enable direct 50 Ω transmission line termination.

Key Specifications

Pinout & Package

ADCMP563BCPZ-R2 uses a 16-lead LFCSP (Lead Frame Chip Scale Package) with exposed pad. Thermal resistance is 70°C/W (junction-to-ambient, still air). The exposed pad must be connected to VEE or left floating per datasheet Note 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed comparator applications.

Compared with ADCMP563BCPZ-R2, ADCMP561BCPZ-R2 offers identical speed and thermal performance in half the channel count and power, while MAX999ESA+ trades nanosecond-scale timing fidelity for single-supply convenience and CMOS interfacing - neither matches the dual-channel, latch-enabled, ECL-optimized architecture of ADCMP563BCPZ-R2.

Availability

ADCMP563BCPZ-R2 is available at Aetrix Electronics and suitable for automatic test equipment, high-speed instrumentation, and logic analyzer front ends requiring stable component supply, full industrial temperature range support (−40°C to +85°C), and guaranteed ECL-level timing performance.

Supply support for ADCMP563BCPZ-R2 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The ADCMP563BCPZ-R2 belongs to Analog Devices' high-speed comparator product line, engineered specifically for sub-nanosecond timing-critical applications including ATE, oscilloscopes, and logic analyzers where propagation delay consistency and ECL interoperability are essential.

FAQ

What is the operating supply voltage range for ADCMP563BCPZ-R2?

The ADCMP563BCPZ-R2 operates with dual supplies: VCC from +4.75 V to +5.25 V and VEE from −4.96 V to −5.45 V. These rails power its ECL-compatible output stage and differential input amplifier. Operation outside this range risks exceeding absolute maximum ratings and may cause permanent damage or parametric shift. Always use local 1 µF + 10 nF bypass capacitors per supply pin as specified in the datasheet layout guidelines.

Does ADCMP563BCPZ-R2 support programmable hysteresis?

No, ADCMP563BCPZ-R2 does not support programmable hysteresis. That feature is exclusive to the ADCMP564 variant, which includes dedicated HYS pins (HYSA/HYSB). The ADCMP563BCPZ-R2 has no hysteresis control terminals and exhibits fixed hysteresis of ±1.0 mV (RHYS = ∞). For designs requiring adjustable hysteresis, the ADCMP564BCPZ-R2 or ADCMP564BRQZ must be selected instead.

What is the thermal resistance (θJA) of ADCMP563BCPZ-R2 in still air?

The ADCMP563BCPZ-R2 in its 16-lead LFCSP package has a junction-to-ambient thermal resistance (θJA) of 70°C/W under still-air conditions. This value assumes proper PCB layout with the exposed pad either connected to VEE or left floating per datasheet Note 1. This lower θJA compared to the QSOP variant (104°C/W) enables higher sustained power dissipation (up to 230 mW with load) without exceeding the 125°C maximum junction temperature.

Can ADCMP563BCPZ-R2 drive 50 Ω loads directly?

Yes, ADCMP563BCPZ-R2 is designed to directly drive 50 Ω loads terminated to −2.0 V, delivering VOH = −0.81 V and VOL = −1.54 V under those conditions. Its open-emitter ECL outputs provide sufficient current to meet ECL 10K/10KH logic thresholds without external components. If −2.0 V is unavailable, an equivalent termination using 82 Ω to GND and 130 Ω to −5.2 V is recommended per the datasheet application note.

How does the latch enable function work on ADCMP563BCPZ-R2?

The ADCMP563BCPZ-R2 provides complementary latch enable inputs (LEA/LEA and LEB/LEB) per channel. When both LEA pins are held high (or left open - internal pull-ups default them to tracking mode), the comparator output tracks input changes. Pulling LEA low places Channel A in latch mode, freezing the output state at the last valid comparison prior to the latch transition. Setup (200 ps) and hold (200 ps) times must be met for reliable acquisition. LEB operates identically for Channel B.