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Analog Devices Inc. ADCMP562BRQZ-RL7
- Part No.:
- ADCMP562BRQZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- 20-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
ADCMP562BRQZ-RL7.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 20QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,518
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Product details
Overview
ADCMP562BRQZ-RL7 from Analog Devices is a dual high-speed PECL comparator with programmable hysteresis, 700 ps propagation delay, 75 ps overdrive dispersion, and −2.0 V to +3.0 V input common-mode range-designed for precision timing recovery in automatic test equipment and high-speed instrumentation front ends.
For engineers reviewing the ADCMP562BRQZ-RL7 datasheet, ADCMP562BRQZ-RL7 pinout, ADCMP562BRQZ-RL7 application, or ADCMP562BRQZ-RL7 equivalent, key selection criteria include propagation delay stability across overdrive, latch-enable timing margins, PECL output drive capability into 50 Ω, and hysteresis programmability via external resistors on HYSA/HYSB pins.
Technical Context
The ADCMP562BRQZ-RL7 integrates two independent high-speed comparators fabricated in Analog Devices' XFCB process, each featuring differential PECL-compatible outputs, internal latch pull-ups, and robust input protection. Its differential input stage maintains consistent propagation delay across a wide −2.0 V to +3.0 V common-mode range.
Unlike the ADCMP561, the ADCMP562BRQZ-RL7 includes dedicated programmable hysteresis inputs (HYSA and HYSB), enabling symmetrical, output-swing-independent hysteresis adjustment via external resistors or current sources-critical for noise-immune threshold detection in disk drive read channels and logic analyzer triggers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation delay | 700 ps typical (VOD = 1 V); enables sub-nanosecond timing alignment in ATE sampling circuits. |
| Overdrive dispersion | 75 ps max (20 mV–1.5 V overdrive); ensures stable timing across varying signal amplitudes. |
| Input common-mode range | −2.0 V to +3.0 V; supports direct interfacing with LVDS, CML, and ECL signal families without level shifting. |
| Hysteresis control | Programmable via HYSA/HYSB pins (20 mV at RHYS = 19.5 kΩ; 70 mV at RHYS = 8.0 kΩ); eliminates chatter in noisy peak/zero-crossing detection. |
| Output rise/fall time | 550 ps / 470 ps (10%–90%); sustains clean 1.5 GHz equivalent input bandwidth for high-fidelity signal restoration. |
| Latch setup/hold time | 250 ps each; supports track-and-hold operation at >500 MHz toggle rates with minimal timing margin violation. |
| Supply rejection | >85 dB (VCC/VEE/VDD); suppresses power rail noise in mixed-signal systems with shared analog/digital supplies. |
Pinout & Package
ADCMP562BRQZ-RL7 is housed in a 20-lead QSOP package (JEDEC MO-137-AB compliant) with 0.65 mm lead pitch and exposed pad thermal enhancement. Pin count and layout are distinct from the 16-lead ADCMP561.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 20 | VDD | Logic supply terminal (+2.5 V to +5.0 V); powers PECL output stage and latch logic. |
| 7 | VEE | Negative analog supply (−4.96 V to −5.45 V); sets input stage bias and common-mode operating point. |
| 14 | VCC | Positive analog supply (+4.75 V to +5.25 V); supplies input differential pair and internal gain stages. |
| 17 | GND | Analog ground reference; must be low-inductance plane for <75 ps dispersion performance. |
| 8, 13 | −INA, −INB | Inverting analog inputs; require matched routing and termination to maintain channel-to-channel skew ≤50 ps. |
| 9, 12 | +INA, +INB | Noninverting analog inputs; differential pair with 750 kΩ differential input resistance. |
| 2, 3, 15, 16 | QA, QA, QB, QB | Complementary PECL outputs; drive 50 Ω to VDD − 2.0 V directly-no external level-shifting needed. |
| 5, 6, 11, 13 | LEA, LEA, LEB, LEB | Complementary latch enable inputs; open-circuit defaults to compare mode; internal pull-ups eliminate need for external bias. |
| 10, 11 | HYSA, HYSB | Programmable hysteresis inputs; accept resistor-to-GND (20–70 mV range) or current-source injection. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent latch-enable paths | Per-channel LEA/LEA and LEB/LEB pairs support asynchronous track-and-hold on each comparator-enabling flexible window or strobe-based sampling. |
| Robust input protection | Withstands −3.0 V to +4.0 V common-mode and ±7.0 V differential input voltage-prevents damage during hot-plug or ESD events in test fixtures. |
| PECL output compatibility | VOH = VDD − 0.81 V, VOL = VDD − 1.54 V into 50 Ω; matches 10K/10KH logic families without interface components. |
| ESD immunity | >4 kV HBM, >200 V MM; meets industrial handling requirements for bench instrumentation assembly lines. |
| Low pulse-width dispersion | 25 ps over 700 ps–10 ns input pulses; preserves duty cycle integrity in clock recovery and trigger applications. |
Applications
| Automatic Test Equipment (ATE) | High-Speed Instrumentation |
|---|---|
Use Scenario: Sampling digital signals at >500 MHz in semiconductor wafer probers and board-level testers. IC Role / Device Role / Timing Role: Dual comparator acts as synchronous edge detector and strobe generator, using latch inputs to freeze sampled data before digitization. Use Value: 700 ps propagation delay and 250 ps latch setup/hold enable precise timing capture with <100 ps system jitter contribution. | Use Scenario: Front-end signal conditioning in real-time oscilloscopes and logic analyzers. IC Role / Device Role / Timing Role: Comparator converts analog waveforms to clean digital edges for time-interleaved ADC triggering and pattern recognition. Use Value: 1.5 GHz equivalent input bandwidth and 75 ps overdrive dispersion preserve signal fidelity across amplitude variations in unknown input waveforms. |
| Disk Drive Read Channel Detection | Peak/Zero-Crossing Detection |
Use Scenario: Extracting timing windows from weak, noisy magnetic readback signals in HDD servo systems. IC Role / Device Role / Timing Role: ADCMP562BRQZ-RL7 serves as adaptive threshold detector with programmable hysteresis suppressing media noise near sector boundaries. Use Value: HYSA/HYSB pins allow dynamic hysteresis tuning (20–70 mV) to match varying signal-to-noise ratios without firmware intervention. | Use Scenario: Identifying zero-crossing points in high-frequency AC line monitoring or RF envelope detection. IC Role / Device Role / Timing Role: Comparator implements fast, low-jitter zero-crossing trigger with differential inputs rejecting common-mode interference. Use Value: −2.0 V to +3.0 V input common-mode range accommodates bipolar AC signals directly-eliminating external op-amp level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADCMP561BRQZ-RL7 | No hysteresis pins; 16-pin QSOP; identical propagation delay and dispersion specs. | Not suitable where noise immunity requires adjustable hysteresis-requires external hysteresis circuitry. | Select ADCMP561BRQZ-RL7 only if hysteresis is implemented externally and PCB space is constrained. |
| LMH7322MA/NOPB | Single-supply (2.7–12 V), no PECL outputs; 1.9 ns propagation delay; no latch enable. | Designed for general-purpose high-speed comparison-not optimized for PECL timing recovery or latch-based sampling. | Choose LMH7322MA/NOPB only for cost-sensitive, single-supply systems where PECL compatibility and sub-ns timing are not required. |
Compared with ADCMP561BRQZ-RL7, the ADCMP562BRQZ-RL7 adds hysteresis programmability without sacrificing speed or package compatibility; versus LMH7322MA/NOPB, it delivers true PECL signaling, dual-channel latch control, and 2.7× faster propagation-making it irreplaceable in ATE and instrumentation timing chains.
Availability
ADCMP562BRQZ-RL7 is available at Aetrix Electronics and suitable for automatic test equipment, high-speed instrumentation, and disk drive read channel detection requiring stable component supply across extended product lifecycles.
Supply support for ADCMP562BRQZ-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 ADCMP562BRQZ-RL7 belongs to Analog Devices' high-speed comparator product line, engineered specifically for sub-nanosecond timing accuracy, low dispersion, and robust operation in automated test, instrumentation, and communications infrastructure.
FAQ
What is the minimum input slew rate required for stable operation of the ADCMP562BRQZ-RL7?
Analog Devices specifies a minimum input slew rate of 1 V/µs for reliable operation of the ADCMP562BRQZ-RL7. Below this rate, the device may oscillate near the switching threshold due to its high input bandwidth and package parasitics. If slower slew rates must be used, hysteresis should be added via the HYSA/HYSB pins to suppress chatter-verified in the datasheet's "Minimum Input Slew Rate Requirement" section.
How does the hysteresis function differ between ADCMP562BRQZ-RL7 and ADCMP561BRQZ-RL7?
The ADCMP562BRQZ-RL7 includes dedicated HYSA and HYSB pins for symmetrical, output-swing-independent hysteresis programming via external resistors or current sources. In contrast, the ADCMP561BRQZ-RL7 lacks these pins entirely-requiring external positive feedback networks to implement hysteresis, which introduces asymmetry and output-dependent variation. This makes ADCMP562BRQZ-RL7 uniquely suited for precision threshold detection in noisy environments.
Can the ADCMP562BRQZ-RL7 operate with a single 3.3 V supply?
No-the ADCMP562BRQZ-RL7 requires three separate supplies: VCC (+4.75 V to +5.25 V), VEE (−4.96 V to −5.45 V), and VDD (+2.5 V to +5.0 V). It is not designed for single-supply operation. Attempting to run it on only 3.3 V will prevent proper biasing of the differential input stage and PECL output drivers, resulting in non-functional or degraded performance per the Absolute Maximum Ratings table.
What is the purpose of the complementary latch enable pins (e.g., LEA and LEA) on the ADCMP562BRQZ-RL7?
The complementary latch enable pins (LEA/LEA and LEB/LEB) on the ADCMP562BRQZ-RL7 provide differential control of the latch function for each comparator channel. Driving one high and the other low places the comparator in latch mode; equal logic levels (both high or both low) place it in compare (tracking) mode. Internal pull-ups ensure safe default behavior when pins are left unconnected-eliminating the need for external bias resistors in most implementations.
Is the ADCMP562BRQZ-RL7 pin-compatible with any other Analog Devices comparators?
No-the ADCMP562BRQZ-RL7 uses a unique 20-lead QSOP pinout that is not pin-compatible with any other Analog Devices comparator, including the 16-lead ADCMP561BRQZ-RL7. The addition of HYSA and HYSB pins, plus duplicated VDD pins, changes the pin mapping entirely. PCB layout must be designed specifically for the ADCMP562BRQZ-RL7 footprint as shown in Figure 3 of the datasheet.
ADCMP562BRQZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 20-SSOP (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Complementary, PECL
- Voltage - Supply, Single/Dual (±):
- ±4.75V ~ 5.25V
- :
- 2mV @ -5.2V, 5V
- Voltage - Input Offset (Max):
- 3µA @ -5.2V,5V
- Current - Input Bias (Max):
- 30mA
- Current - Output (Typ):
- 5mA, 28mA, 13mA
- Current - Quiescent (Max):
- 80dB CMRR, 85dB PSRR
- CMRR, PSRR (Typ):
- 0.83ns
- Propagation Delay (Max):
- ±1mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 20-QSOP
ADCMP562BRQZ-RL7 FAQ
1.How can I place an order for ADCMP562BRQZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADCMP562BRQZ-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 ADCMP562BRQZ-RL7 reliable?
The price and inventory of ADCMP562BRQZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADCMP562BRQZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADCMP562BRQZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADCMP562BRQZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADCMP562BRQZ-RL7?
ADCMP562BRQZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADCMP562BRQZ-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 ADCMP562BRQZ-RL7?
For technical support, including ADCMP562BRQZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADCMP562BRQZ-RL7 requirements.
6.How does Aetrix verify that ADCMP562BRQZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADCMP562BRQZ-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 ADCMP562BRQZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADCMP562BRQZ-RL7?
All ADCMP562BRQZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADCMP562BRQZ-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 ADCMP562BRQZ-RL7 part is unused and in its original packaging.
Return procedure for ADCMP562BRQZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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