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Analog Devices Inc. AD8561ARUZ-REEL
- Part No.:
- AD8561ARUZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD8561ARUZ-REEL.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,179
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Product details
Overview
AD8561ARUZ-REEL from Analog Devices is a single ultrafast comparator with 7 ns propagation delay, rail-to-rail input common-mode range (0 V to +3.0 V), latch-enable function, and TSSOP-8 packaging. It operates from 3 V to 10 V single supply and delivers matched rising/falling edge delays for precise clock recovery in high-speed digital communications.
For engineers reviewing the AD8561ARUZ-REEL datasheet, AD8561ARUZ-REEL pinout, AD8561ARUZ-REEL application, or AD8561ARUZ-REEL equivalent, this page provides verified technical context, real-world timing performance data, latch timing constraints, output drive capability (3.2 mA sink/source), and validated alternatives for high-speed comparator selection.
Technical Context
The AD8561ARUZ-REEL uses a PNP differential input stage enabling input common-mode voltage range from 0 V to +3.0 V (with ±5 V dual-supply operation also supported). Its latch enable (Pin 5) has 1 ns setup time and 1.2 ns hold time, requiring TTL/CMOS-compatible logic thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V).
Propagation delay is specified at 6.75–9.8 ns (typ/max) for 200 mV step with 100 mV overdrive, with differential delay (ΔtP) ≤ 2.0 ns ensuring duty-cycle preservation. Output swing ranges from 0.25 V (VOL, IOL = 3.2 mA) to 3.5 V (VOH, IOH = –3.2 mA) under +5 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 6.75 ns typical (200 mV step, 100 mV overdrive); enables sub-10 ns timing-critical decisions in clock distribution paths. |
| Input Common-Mode Range | 0 V to +3.0 V (single supply); supports direct interfacing with 3.3 V logic and low-voltage references without level shifting. |
| Latch Enable Pulse Width | 6 ns minimum; allows precise data capture synchronized to high-frequency clocks without metastability risk. |
| Output Drive Capability | ±3.2 mA (VOH/VOL specified at this load); drives up to 20 TTL inputs or ≥100 Ω loads without external buffers. |
| Supply Current | 6.5 mA typical (+5 V supply); reduces thermal load vs. LT1016 (25 mA), easing power budgeting in dense PCB layouts. |
| Input Offset Voltage | 7 mV max (–40°C to +85°C); ensures reliable threshold detection in line receivers with <100 mV signal margins. |
| Rise/Fall Time | 3.8 ns / 1.5 ns (20%–80%); supports clean edge generation for sampling circuits operating above 100 MHz. |
Pinout & Package
AD8561ARUZ-REEL is housed in an 8-lead Thin Shrink Small Outline Package (TSSOP, RU-8), 3.0 mm × 4.4 mm body, 0.65 mm lead pitch, compliant with JEDEC MO-153-AA. Thermal resistance θJA = 240°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: V+ | Positive Supply | Accepts 3 V to 10 V single supply; powers output stage and internal bias networks. |
| 2: IN− | Inverting Input | Differential input node; PNP-based input stage draws −3 μA typical bias current. |
| 3: IN+ | Noninverting Input | Differential input node; common-mode range extends to 0 V (negative rail). |
| 4: GND | Ground Reference | Return path for supply current (IGND = 3.3 mA typ); requires low-inductance ground plane for high-speed stability. |
| 5: LATCH | Latch Enable Control | TTL/CMOS-compatible digital input; latches output state when high (≥2.0 V); 1 ns setup/1.2 ns hold required. |
| 6: OUT | Active-High Digital Output | Push-pull CMOS-compatible output; VOH = 3.5 V (IOH = –3.2 mA), VOL = 0.25 V (IOL = 3.2 mA). |
| 7: - | No Connect | Internally unused; must be left floating or tied to GND per layout guidelines. |
| 8: V− | Negative Supply (Optional) | Supports dual-supply operation (±5 V); not used in single-supply mode (connect to GND). |
Key Features
| Feature | Design Value |
|---|---|
| Ultrafast Propagation Delay | 6.75 ns typical ensures timing-critical decisions meet sub-10 ns budgets in clock recovery and sampling circuits. |
| Matched Rising/Falling Delays | ΔtP ≤ 2.0 ns preserves input duty cycle at output-critical for phase-sensitive applications like clock distribution. |
| Single-Supply Rail-to-Rail Input | 0 V to +3.0 V common-mode range enables direct interface with 3.3 V systems without external level shifters. |
| Integrated Latch Function | Pin 5 control with 6 ns min pulse width allows synchronous data capture aligned to system clocks. |
| Low Power Consumption | 6.5 mA supply current at +5 V reduces heat dissipation vs. legacy comparators (e.g., LT1016 at 25 mA). |
Applications
| High-Speed Clock Recovery | Line Receiver for Digital Communications |
|---|---|
Use Scenario: Recovering clean clock signals from jittered or attenuated serial data streams in backplane or optical receiver modules. IC Role / Device Role / Timing Role: Comparator acting as zero-crossing detector with matched propagation delays to maintain output duty cycle fidelity. Use Value: ΔtP ≤ 2.0 ns ensures recovered clock duty cycle deviation <1%, minimizing timing skew in SERDES PHY layers. |
Use Scenario: Converting differential or single-ended NRZ data into clean CMOS logic levels for FPGA or ASIC input in industrial Ethernet nodes. IC Role / Device Role / Timing Role: High-speed line receiver with 7 ns decision latency and 3.2 mA drive strength to fan out to multiple logic inputs. Use Value: 6.75 ns propagation delay enables reliable sampling of >100 Mbps data streams with margin for PCB trace skew. |
| Phase Detector in PLL Systems | Read Channel Detection in Storage Interfaces |
Use Scenario: Detecting phase alignment between reference and feedback clocks in frequency synthesizers for RF transceivers. IC Role / Device Role / Timing Role: Dual-input comparator generating UP/DOWN pulses based on input edge alignment; latch synchronizes outputs to system clock. Use Value: Latch enable (Pin 5) with 1 ns setup time allows precise edge-aligned sampling of phase error signals at >50 MHz rates. |
Use Scenario: Threshold detection of analog readback signals from magnetic or flash memory channels in SSD controllers. IC Role / Device Role / Timing Role: High-speed comparator converting analog channel output to digital bitstream with minimal decision latency. Use Value: 3.8 ns rise time and 1.5 ns fall time support clean edge generation for 1 Gbps+ read channel sampling clocks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1016CN8#PBF | 10 ns typical propagation delay; +5 V only; input range +1.25 V to +3.5 V; 25 mA supply current. | Lacks latch function; narrower input range limits 3.3 V logic compatibility; higher power limits density in portable designs. | Select when legacy pin compatibility is mandatory and speed <10 ns suffices; verify input voltage margins. |
| TLV3501CDR | 4.5 ns typical delay; 2.7–5.5 V supply; no latch; 8 mA supply current; open-drain output. | Requires external pull-up for logic-high; no latch eliminates synchronous sampling; faster but less flexible in timing-critical capture. | Choose for maximum speed in non-latched applications; add external latch IC if synchronization needed. |
Compared with LT1016CN8#PBF and TLV3501CDR, AD8561ARUZ-REEL uniquely combines sub-10 ns speed, integrated latch, single-supply rail-to-rail input, and low power-making it optimal for clock recovery and synchronous sampling where timing precision and integration reduce BOM count.
Availability
AD8561ARUZ-REEL is available at Aetrix Electronics and suitable for high-speed timing, clock distribution, and digital communications applications requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for AD8561ARUZ-REEL 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD8561ARUZ-REEL belongs to Analog Devices' high-speed comparator product line, designed specifically for sub-10 ns timing-critical applications including clock recovery, line reception, and phase detection in communications infrastructure.
FAQ
What is the maximum operating supply voltage for AD8561ARUZ-REEL?
The AD8561ARUZ-REEL supports total supply voltage (V+ to V−) up to 14 V absolute maximum. In single-supply mode (V− = GND), V+ may range from 3 V to 10 V per specifications. Exceeding 10 V risks exceeding input common-mode limits and degrading propagation delay performance.
Does AD8561ARUZ-REEL require external pull-up resistors on its output?
No-AD8561ARUZ-REEL features a push-pull CMOS-compatible output that drives both high and low actively. Pull-up resistors are unnecessary unless operating at 3 V supply where VOH may drop below logic-high thresholds; in such cases, a 5 kΩ pull-up to V+ restores full swing.
Can AD8561ARUZ-REEL operate with dual supplies?
Yes-AD8561ARUZ-REEL supports dual-supply operation (e.g., ±5 V), with V+ = +5 V and V− = –5 V. This extends input common-mode range to –5.0 V to +3.0 V and enables interfacing with bipolar signal sources while retaining 7 ns propagation delay performance.
What is the latch enable timing requirement for AD8561ARUZ-REEL?
AD8561ARUZ-REEL requires latch enable (Pin 5) pulse width ≥6 ns, setup time ≥1.0 ns, and hold time ≥1.2 ns relative to input transition. Violating these causes metastability or incorrect latched output; timing must be verified with oscilloscope measurements in final layout.
Is AD8561ARUZ-REEL pin-compatible with LT1016 designs?
Yes-AD8561ARUZ-REEL shares identical pinout with LT1016 in TSSOP-8 (RU-8) package. However, differences exist: wider input range (0 V to +3.0 V vs. +1.25 V to +3.5 V), lower supply current (6.5 mA vs. 25 mA), and added latch function (Pin 5), requiring verification of input voltage margins and latch control logic.
AD8561ARUZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- CMOS, Complementary, TTL
- Voltage - Supply, Single/Dual (±):
- 3V ~ 10V, ±1.5V ~ 5V
- :
- 7mV @ 5V
- Voltage - Input Offset (Max):
- 6µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 6mA, 3.3mA, 5.5mA
- Current - Quiescent (Max):
- 85dB CMRR, 65dB PSRR
- CMRR, PSRR (Typ):
- 9.8ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-TSSOP
AD8561ARUZ-REEL FAQ
1.How can I place an order for AD8561ARUZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8561ARUZ-REEL 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 AD8561ARUZ-REEL reliable?
The price and inventory of AD8561ARUZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8561ARUZ-REEL is usually 5 days.
3.What payment methods are accepted for AD8561ARUZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8561ARUZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8561ARUZ-REEL?
AD8561ARUZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8561ARUZ-REEL 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 AD8561ARUZ-REEL?
For technical support, including AD8561ARUZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8561ARUZ-REEL requirements.
6.How does Aetrix verify that AD8561ARUZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD8561ARUZ-REEL 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 AD8561ARUZ-REEL meets industry standards.
7.What is the process for return or replacement of AD8561ARUZ-REEL?
All AD8561ARUZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD8561ARUZ-REEL, 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 AD8561ARUZ-REEL part is unused and in its original packaging.
Return procedure for AD8561ARUZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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