AD8561ARZ Model Information

Overview
The AD8561ARZ is a high-speed, ultrafast comparator designed for a wide range of applications requiring precise timing and high-speed signal processing. It features a propagation delay of 7 ns at 5 V single supply operation, making it ideal for high-speed timing circuits, clock recovery, and line receivers.

Features

• Ultrafast Propagation Delay: 7 ns at 5 V, ensuring rapid signal processing.
• Single Supply Operation: Operates from 3 V to 10 V, providing flexibility in power supply options.
• Low Power Consumption: Suitable for battery-powered and portable devices.
• Latch Function: Features a latch enable input for data retention.
• TSSOP Packages: Available in 8-lead TSSOP packages for compact and efficient PCB design.
• Wide Common-Mode Input Range: Includes the negative supply rail, enhancing versatility.
• Pinout Compatibility: Same pinout as the LT1016, facilitating easy upgrades.

Applications

High-Speed Timing Circuits: Ideal for applications requiring precise timing and synchronization.
Clock Recovery and Distribution: Suitable for recovering and distributing clock signals in digital communication systems.
Line Receivers: Effective in receiving and processing signals in high-speed data transmission lines.
Phase Detectors: Useful in phase-locked loop (PLL) applications for phase detection.
High-Speed Sampling: Applicable in analog-to-digital conversion systems for high-speed sampling.
PCMCIA Cards: Suitable for use in PCMCIA card designs for enhanced performance.
Upgrade for LT1016 Designs: A direct replacement for LT1016 with improved performance.

General Description

The AD8561 is a single 7 ns comparator with separate input and output sections. It can be operated from ±5 V dual supplies and +5 V single supplies. The fast propagation delay and matched delay for rising and falling signals make it an excellent choice for clock recovery applications. The AD8561 is specified over the industrial temperature range of –40°C to +85°C and is available in 8-lead plastic DIP, 8-lead TSSOP, and 8-lead narrow SOIC surface-mount packages.

Electrical Specifications
Input Characteristics:Offset Voltage (VOS): 2.3 mV to 8 mV at –40°C to +85°C.Input Bias Current (IB): –6 μA to –3.5 μA at VCM = 0 V.Input Offset Current (IOS): ±4 μA at VCM = 0 V.Input Common-Mode Voltage Range (VCM): 0.0 V to +3.0 V.Common-Mode Rejection Ratio (CMRR): 65 dB to 85 dB at 0 V ≤ VCM ≤ +3.0 V.Large Signal Voltage Gain (AVO): 3000 V/V at RL = 10 kΩ.Input Capacitance (CIN): 3.0 pF.
Latch Enable Input:Logic “1” Voltage Threshold (VIH): 2.0 V to 1.65 V.Logic “0” Voltage Threshold (VIL): 1.60 V to 0.8 V.Logic “1” Current (IIH): –1.0 μA to –0.3 μA at VLH = 3.0 V.Logic “0” Current (IIL): –4 μA to –2 μA at VLL = 0.3 V.Latch Enable Pulsewidth (tPW(E)): 6 ns.Setup Time (tS): 1 ns.Hold Time (tH): 1.2 ns.
Digital Outputs:Logic “1” Voltage (VOH): 3.5 V at IOH = –50 μA, ΔVIN > 250 mV.Logic “0” Voltage (VOL): 0.25 V to 0.4 V at IOL = 3.2 mA, ΔVIN > 250 mV.
Dynamic Performance:Propagation Delay (tP): 6.75 ns to 9.8 ns at 200 mV step with 100 mV overdrive.Differential Propagation Delay (ΔtP): 0.5 ns to 2.0 ns at 100 mV step with 100 mV overdrive.Rise Time: 3.8 ns (20% to 80%).Fall Time: 1.5 ns (80% to 20%).
Power Supply:Power Supply Rejection Ratio (PSRR): 50 dB to 65 dB at +4.5 V ≤ V+ ≤ +5.5 V.Positive Supply Current (I+): 4.5 mA to 7.5 mA at –40°C to +85°C.Ground Supply Current (IGND): 2.2 mA to 3.8 mA at VO = 0 V, RL = ∞.Analog Supply Current (I–): 2.3 mA to 5.5 mA at –40°C to +85°C.
Absolute Maximum Ratings
Total Supply Voltage from V– to V+: 14 V.
Input Voltage: ±7 V.
Differential Input Voltage: ±8 V.
Output Short-Circuit Duration to GND: Indefinite.
Storage Temperature Range: –65°C to +150°C.
Operating Temperature Range: –40°C to +85°C.
Junction Temperature Range: –65°C to +150°C.
Lead Temperature Range (Soldering, 10 sec): 350°C.
Package Information
8-Lead Plastic DIP (N-8):θJA: 103 °C/W.θJC: 43 °C/W.
8-Lead SO (R-8):θJA: 158 °C/W.θJC: 43 °C/W.
8-Lead TSSOP (RU-8):θJA: 240 °C/W.θJC: 43 °C/W.
Ordering Guide
Model: AD8561ARZ
Temperature Range: –40°C to +85°C
Package Description: 8-Lead Standard Small Outline Package [SOIC_N]
Package Option: R-8
Revision History
12/2016—Rev. C to Rev. D:Changed SO-8 to R-8 throughout.Updates to the General Description section.
11/2016—Rev. B to Rev. C:Changes to the Absolute Maximum Ratings section.
12/2013—Rev. A to Rev. B:Changes to Figure 19 Caption and Figure 20 Caption.Updates to the Ordering Guide.
4/2013—Rev. 0 to Rev. A:Change to Lead Temperature Range (Soldering, 10 Sec) parameter in the Absolute Maximum Ratings section.Updated Outline Dimensions.Moved Ordering Guide and added Revision History section.Updates to the Ordering Guide.
6/1998—Revision 0: Initial Version
Note
The AD8561ARZ is an ESD-sensitive device. Proper ESD precautions are recommended to avoid performance degradation or loss of functionality.