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Analog Devices Inc. ADCMP572BCPZ-RL7
- Part No.:
- ADCMP572BCPZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- 16-WFQFN Exposed Pad, CSP
- Datasheet:
-
ADCMP572BCPZ-RL7.pdf
- Description:
- IC COMPARATOR 1 W/LATCH 16LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:779
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Product details
Overview
ADCMP572BCPZ-RL7 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, supports −0.2 V to +1.2 V input range, and is used in high-speed clock/data restoration and ATE trigger circuitry.
For engineers reviewing the ADCMP572BCPZ-RL7 datasheet, ADCMP572BCPZ-RL7 pinout, ADCMP572BCPZ-RL7 application, or ADCMP572BCPZ-RL7 equivalent, key selection criteria include propagation delay dispersion (<15 ps), on-chip 50 Ω input terminations, resistor-programmable hysteresis, latch timing (15 ps setup/5 ps hold), and operation across −40°C to +125°C.
Technical Context
The ADCMP572BCPZ-RL7 implements a high-speed SiGe bipolar front-end with CML output stage designed to drive 400 mV into 50 Ω terminated to VCCO. Its input stage features internal 50 Ω terminations at both VP and VN pins, with separate VTP/VTN return terminals for flexible termination biasing.
Latch functionality uses complementary LE/LE inputs with 50 Ω internal termination to Pin 8 (VCCO/VTT), enabling precise edge-triggered sampling. Hysteresis is controlled externally via the HYS pin using a pull-down resistor, offering ±1 mV (open) to ±25 mV (grounded) programmability without load-dependent variation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 150 ps typical at 200 mV overdrive - enables 10 Gbps data recovery with minimal timing uncertainty |
| Input Bandwidth | 8 GHz equivalent rise time - supports sub-100 ps edge detection in pulse spectroscopy and medical imaging |
| Jitter Performance | 10 ps deterministic + 200 fs RMS random jitter - ensures stable eye opening in high-speed serial links |
| Supply Range | 3.1 V to 5.4 V for both VCCI and VCCO - allows single-supply 3.3 V or 5.2 V operation with split-supply flexibility |
| Input Termination | On-chip 50 Ω resistors at VP/VN - eliminates external termination components and reduces layout sensitivity |
| Operating Temperature | −40°C to +125°C - qualified for industrial and automotive under-hood applications requiring extended thermal stability |
| Output Type | CML-compatible - directly drives 50 Ω transmission lines terminated to VCCO, simplifying interface to FPGA/CPLD clock inputs |
Pinout & Package
The ADCMP572BCPZ-RL7 is housed in a 16-lead 3 mm × 3 mm LFCSP package with exposed pad (EPAD) for thermal management. Pin 1 is VTP; Pin 16 is VCCI. EPAD is electrically isolated and may be left floating or soldered to ground for improved thermal/mechanical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VTP | VP input termination return | Provides dedicated low-inductance return path for VP's internal 50 Ω termination; must be bypassed if used |
| VP | Noninverting analog input | Differential input node with 50 Ω on-chip termination; accepts −0.2 V to +1.2 V (3.3 V supply) |
| VN | Inverting analog input | Differential input node with 50 Ω on-chip termination; referenced to VTN for matched termination |
| VTN | VN input termination return | Provides dedicated low-inductance return path for VN's internal 50 Ω termination |
| VCCI | Input stage supply | Powers input amplifier and latch logic; supports 3.1 V–5.4 V; requires local 0.01 μF + 1 μF bypassing |
| LE / LE | Differential latch enable | Complementary inputs controlling compare/latch mode; internally terminated to Pin 8 (VCCO/VTT) |
| VCCO/VTT | Latch termination reference | Internally connected to VCCO for ADCMP572; serves as termination reference for LE/LE inputs |
| VCCO | Output stage supply | Powers CML output drivers; must be decoupled independently from VCCI to minimize crosstalk |
| GND | Ground reference | Pins 13 and 15 are dedicated ground connections; require low-inductance vias to solid ground plane |
| Q / Q | Differential CML outputs | Back-terminated 50 Ω outputs driving 400 mV swing into 50 Ω load terminated to VCCO |
| HYS | Hysteresis control | Accepts external pull-down resistor to GND; sets hysteresis from <1 mV (open) to ±25 mV (0 Ω) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low propagation delay dispersion | <15 ps overdrive/slew rate variation - maintains timing integrity across varying signal amplitudes and edge rates |
| Integrated 50 Ω input terminations | Eliminates need for external termination resistors and reduces PCB footprint and parasitic mismatch |
| Resistor-programmable hysteresis | Adjustable ±1 mV to ±25 mV via single external resistor - avoids load-dependent hysteresis and preserves high-speed performance |
| Differential latch with precise timing | 15 ps setup / 5 ps hold time - enables reliable sampling of sub-200 ps pulses in ATE and instrumentation |
| Robust input stage | No phase reversal under overdrive - prevents false triggering when inputs exceed valid range in noisy environments |
Applications
| Automatic Test Equipment (ATE) | High-Speed Clock Restoration |
|---|---|
Use Scenario: Precision edge detection of test stimulus signals in semiconductor wafer probing systems operating at >5 Gbps. IC Role / Device Role / Timing Role: ADCMP572BCPZ-RL7 acts as a high-fidelity threshold detector capturing nanosecond-scale timing margins between DUT response and reference clocks. Use Value: 150 ps propagation delay and <15 ps dispersion ensure sub-20 ps timing measurement repeatability across temperature and voltage variations. | Use Scenario: Regeneration of degraded clock signals in high-speed SerDes receiver subsystems before CDR locking. IC Role / Device Role / Timing Role: ADCMP572BCPZ-RL7 functions as a zero-crossing detector and level shifter, restoring jitter-compromised clock edges to clean CML logic levels. Use Value: 8 GHz input bandwidth and 200 fs RMS jitter preserve phase noise integrity while enabling direct interface to FPGA clock inputs. |
| Pulse Spectroscopy Systems | Medical Imaging Front-Ends |
Use Scenario: Time-of-flight measurement in laser-induced breakdown spectroscopy (LIBS), where photon arrival times define elemental composition. IC Role / Device Role / Timing Role: ADCMP572BCPZ-RL7 serves as a fast trigger generator converting analog PMT/avalanche diode pulses into digital timing markers. Use Value: 80 ps minimum pulse width support and 35 ps rise/fall times allow accurate timestamping of sub-100 ps optical pulses. | Use Scenario: Signal conditioning in PET/MRI time-of-flight detectors requiring precise coincidence windowing of gamma-ray events. IC Role / Device Role / Timing Role: ADCMP572BCPZ-RL7 performs threshold discrimination on fast scintillation pulses prior to TDC digitization. Use Value: Extended −40°C to +125°C operation and robust input protection ensure reliability in thermally constrained scanner enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADCMP573BCPZ-RL7 | RSPECL outputs, different latch input thresholds (1.8 V to VCCO−0.6 V), higher supply current (62–80 mA vs. 44–52 mA) | Targeted at PECL-compatible systems requiring VCCO−2 V termination; less suitable for direct 3.3 V CML interfacing | Select ADCMP573BCPZ-RL7 only when interfacing to legacy PECL logic families or when VCCO−2 V termination is already present |
| LMH7322MA/NOPB | Lower speed (6.5 ns delay), no integrated latch, no on-chip input termination, wider supply range (2.7–12 V) | Designed for general-purpose high-speed comparators in non-timing-critical applications; lacks deterministic jitter specs | Choose LMH7322MA/NOPB for cost-sensitive, lower-frequency designs where propagation delay dispersion and jitter are not critical |
Compared with ADCMP572BCPZ-RL7, ADCMP573BCPZ-RL7 trades CML compatibility for RSPECL interoperability and higher power, while LMH7322MA/NOPB sacrifices 30× higher speed and precision timing features for broader supply flexibility and lower cost.
Availability
ADCMP572BCPZ-RL7 is available at Aetrix Electronics and suitable for automatic test equipment (ATE), high-speed clock restoration, and pulse spectroscopy applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for ADCMP572BCPZ-RL7 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 ADCMP572BCPZ-RL7 belongs to Analog Devices' ultrafast SiGe comparator family, engineered specifically for timing-critical applications demanding sub-200 ps propagation delay, ultra-low jitter, and robust operation across industrial temperature ranges.
FAQ
What is the maximum operating temperature for ADCMP572BCPZ-RL7?
The ADCMP572BCPZ-RL7 is fully specified and characterized from −40°C to +125°C ambient temperature. Its SiGe process and LFCSP packaging enable reliable operation at +125°C, making it suitable for under-hood automotive and industrial environments where thermal management is constrained. Junction temperature must not exceed +150°C per absolute maximum ratings.
Does ADCMP572BCPZ-RL7 require external input termination resistors?
No. The ADCMP572BCPZ-RL7 integrates 50 Ω termination resistors at both VP and VN inputs. These can be enabled by connecting VTP and VTN to the desired termination potential (e.g., VCCO/2 or ground), or disabled by leaving VTP/VTN floating. This eliminates external resistors and reduces layout sensitivity in 50 Ω systems.
How is hysteresis programmed on ADCMP572BCPZ-RL7?
Hysteresis on ADCMP572BCPZ-RL7 is set by connecting an external resistor between the HYS pin and GND. With HYS open, hysteresis is <1 mV. Grounding HYS yields ~±25 mV; intermediate values (e.g., ±5 mV) are achieved with kΩ-range resistors per Figure 7 in the datasheet. No capacitor should be added to HYS, as it degrades jitter.
What is the latch enable timing specification for ADCMP572BCPZ-RL7?
The ADCMP572BCPZ-RL7 requires 15 ps setup time (tS) and 5 ps hold time (tH) for the LE/LE inputs at 100 mV overdrive. These tight timings reflect its ultrafast architecture and enable reliable latching of pulses as narrow as 80 ps. Latch-to-output delay is 150 ps, matching the propagation delay for synchronous sampling.
Can ADCMP572BCPZ-RL7 operate from a single 3.3 V supply?
Yes. The ADCMP572BCPZ-RL7 supports single-supply operation with VCCI = VCCO = 3.3 V, delivering full performance including 150 ps propagation delay and 200 fs jitter. Input common-mode range is −0.2 V to +1.2 V, and CML outputs drive 400 mV into 50 Ω loads terminated to 3.3 V.
ADCMP572BCPZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 16-WFQFN Exposed Pad, CSP
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- with Latch
- Number of Elements:
- 1
- Output Type:
- CML, Complementary
- Voltage - Supply, Single/Dual (±):
- 3.1V ~ 5.4V
- :
- 2mV @ 3.3V
- Voltage - Input Offset (Max):
- 25µA @ 3.3V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 52mA
- Current - Quiescent (Max):
- 65dB CMRR, 74dB PSRR
- CMRR, PSRR (Typ):
- 0.165ns
- Propagation Delay (Max):
- ±1mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 16-LFCSP (3x3)
ADCMP572BCPZ-RL7 FAQ
1.How can I place an order for ADCMP572BCPZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADCMP572BCPZ-RL7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADCMP572BCPZ-RL7 reliable?
The price and inventory of ADCMP572BCPZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADCMP572BCPZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADCMP572BCPZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADCMP572BCPZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADCMP572BCPZ-RL7?
ADCMP572BCPZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADCMP572BCPZ-RL7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADCMP572BCPZ-RL7?
For technical support, including ADCMP572BCPZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADCMP572BCPZ-RL7 requirements.
6.How does Aetrix verify that ADCMP572BCPZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADCMP572BCPZ-RL7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADCMP572BCPZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADCMP572BCPZ-RL7?
All ADCMP572BCPZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADCMP572BCPZ-RL7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADCMP572BCPZ-RL7 part is unused and in its original packaging.
Return procedure for ADCMP572BCPZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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