Analog Devices Inc. ADCMP572BCPZ-WP

Overview

ADCMP572BCPZ-WP from Analog Devices is an ultrafast SiGe voltage comparator with CML output drivers and differential latch control, delivering 150 ps propagation delay, 8 GHz equivalent input bandwidth, and 200 fs RMS random jitter. It operates from a single 3.3 V or 5.2 V supply, features on-chip 50 Ω input terminations, and supports robust clock/data restoration in high-speed serial links.

For engineers reviewing the ADCMP572BCPZ-WP datasheet, ADCMP572BCPZ-WP pinout, ADCMP572BCPZ-WP application, or ADCMP572BCPZ-WP equivalent, key selection considerations include propagation delay dispersion (<15 ps), resistor-programmable hysteresis, latch timing (15 ps setup/5 ps hold), CML output drive into 50 Ω terminated to VCCO, and −40°C to +125°C operation in LFCSP.

Technical Context

The ADCMP572BCPZ-WP implements a high-speed SiGe bipolar front-end with fully differential input stage and CML output buffer, enabling sub-200 ps total propagation delay with minimal overdrive and slew rate dispersion. Its dual-latch inputs (LE/LE) support synchronous sampling with precise timing control, while internal 50 Ω input terminations at VP and VN simplify PCB layout in 50 Ω systems.

It uses split-supply flexibility: VCCI powers the input stage (3.1–5.4 V), VCCO powers the CML output stage (3.1–5.4 V), and both supplies may be equal for single-supply operation. The HYS pin enables resistor-programmed hysteresis up to ±25 mV without external feedback networks or performance-degrading capacitors.

Key Specifications

Pinout & Package

ADCMP572BCPZ-WP is housed in a 16-lead 3 mm × 3 mm LFCSP package with exposed thermal pad (EPAD). The package supports high-frequency signal integrity via dedicated termination return pins (VTP, VTN, VCCO/VTT) and separate VCCI/VCCO/GND power domains.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADCMP572BCPZ-WP, ADCMP573BCPZ-WP trades CML compatibility for RSPECL interoperability and higher power, while TLV3501IDBVR offers basic functionality at orders-of-magnitude lower speed and jitter performance - making ADCMP572BCPZ-WP irreplaceable for sub-200 ps timing-critical designs.

Availability

ADCMP572BCPZ-WP is available at Aetrix Electronics and suitable for automatic test equipment (ATE), high-speed line receivers, pulse spectroscopy systems, and medical imaging front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ADCMP572BCPZ-WP 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, with deep expertise in precision timing, RF, and high-speed data conversion.

The ADCMP572BCPZ-WP belongs to Analog Devices' ultrafast SiGe comparator product line, engineered specifically for sub-200 ps timing-critical applications including ATE, optical interconnects, and scientific instrumentation where deterministic latency and ultra-low jitter are mandatory.

FAQ

What is the maximum operating frequency supported by ADCMP572BCPZ-WP?

The ADCMP572BCPZ-WP supports reliable operation up to 12.5 Gbps toggle rate with >50% output swing, validated by eye diagram testing at 6.5 Gbps (Figure 14) and specified minimum pulse width of 80 ps. Its 8 GHz equivalent input bandwidth and 150 ps propagation delay make it suitable for 10 Gbps NRZ data recovery and clock restoration in serial link applications.

Does ADCMP572BCPZ-WP require external input termination resistors?

No - ADCMP572BCPZ-WP integrates 50 Ω termination resistors at both VP and VN inputs. These can be enabled by connecting VTP and VTN to the desired termination voltage (e.g., VCCO or AC ground), or disabled by leaving VTP/VTN floating. This eliminates external resistors and reduces layout-induced parasitics in high-speed designs.

How is hysteresis configured on ADCMP572BCPZ-WP?

Hysteresis on ADCMP572BCPZ-WP is configured by connecting a resistor from the HYS pin (Pin 14) to GND. Leaving HYS open yields <1 mV hysteresis; grounding via 10 kΩ gives ~5 mV, and 1 kΩ yields ~25 mV. No external capacitor is recommended, as it degrades jitter performance. The internal bias and series resistance (600 Ω) ensure stable, predictable hysteresis without feedback loop instability.

Can ADCMP572BCPZ-WP operate with different input and output supply voltages?

Yes - ADCMP572BCPZ-WP supports split-supply operation: VCCI (input stage) and VCCO (CML output stage) may differ within absolute limits (VCCI − VCCO ≤ +2.3 V). For example, VCCI = 3.3 V and VCCO = 5.2 V is valid. Each supply must be independently bypassed to GND; connecting bypass capacitors between VCCI and VCCO is prohibited per the datasheet.

What is the latch enable timing relationship between LE and LE pins on ADCMP572BCPZ-WP?

LE and LE are complementary latch inputs: LE is active-low and LE is active-high. They must be driven in strict logical complement (e.g., LE = !LE) with <20 ps skew to avoid metastability. Setup time is 15 ps and hold time is 5 ps relative to the latch edge, enabling synchronous sampling of input transitions with deterministic timing control in high-speed digital systems.