Overview
The AD8564AR is a quad 7 ns single-supply comparator produced by Analog Devices Inc. This component is designed to operate with separate input and output supplies, allowing the input stage to be powered from either ±5 V dual supplies or a single 5 V supply. The AD8564AR maintains CMOS- and TTL-compatible outputs, making it versatile for various high-speed applications. With a fast 7 ns propagation delay, it is particularly suited for timing circuits, line receivers, and data communications.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Propagation Delay | t_P | V+ANA = V+DIG = 5.0 V, V−ANA = 0 V, TA = 25°C | - | 7 ns | 9.8 ns | ns |
| Offset Voltage | VOS | V+ANA = V+DIG = 5.0 V, V−ANA = 0 V, TA = 25°C | 2.3 mV | 7 mV | 8 mV | mV |
| Input Bias Current | IB | VCM = 0 V, TA = 25°C | - | ±4 μA | ±9 μA | μA |
| Input Offset Current | IOS | VCM = 0 V, TA = 25°C | - | ±3 μA | - | μA |
| Analog Supply Current | I−ANA | V+ANA = V+DIG = 5.0 V, V−ANA = 0 V, TA = 25°C | -7.0 mA | 14.0 mA | 17 mA | mA |
| Digital Supply Current | IDIG | VO = 0 V, RL = ∞, TA = 25°C | 6.0 mA | 7.0 mA | 8.0 mA | mA |
| Common-Mode Voltage Range | VCM | V+ANA = V+DIG = 5.0 V, V−ANA = 0 V, TA = 25°C | 0 V | - | 2.75 V | V |
| Operating Temperature Range | TA | - | -40°C | - | +125°C | °C |
| Package Types | - | - | - | - | 16-lead TSSOP, 16-lead narrow body SOIC, 16-lead PDIP | - |
Key Features
- Fast 7 ns propagation delay
- Single 5 V supply operation or ±5 V dual supplies
- CMOS- and TTL-compatible outputs
- Low power consumption
- Separate input and output supplies to prevent supply pin interaction
- Pin compatible with MAX901 but with lower supply currents
- Wide output swing
- Available in 16-lead TSSOP, 16-lead narrow body SOIC, and 16-lead PDIP packages
Applications
- High-speed timing circuits
- Line receivers
- Data communications
- High-speed V-to-F converters
Q & A
- What is the propagation delay of the AD8564AR?
The propagation delay of the AD8564AR is typically 7 ns, with a maximum of 9.8 ns.
- What are the supply voltage options for the AD8564AR?
The AD8564AR can operate from either a single 5 V supply or ±5 V dual supplies.
- What types of output are supported by the AD8564AR?
The AD8564AR supports CMOS- and TTL-compatible outputs.
- What is the operating temperature range of the AD8564AR?
The operating temperature range is from -40°C to +125°C.
- In what packages is the AD8564AR available?
The AD8564AR is available in 16-lead TSSOP, 16-lead narrow body SOIC, and 16-lead PDIP packages.
- What are some key applications of the AD8564AR?
Key applications include high-speed timing circuits, line receivers, data communications, and high-speed V-to-F converters.
- How does the AD8564AR protect against supply pin interaction?
The AD8564AR has separate input and output supplies, which helps to prevent supply pin interaction.
- Is the AD8564AR pin compatible with other comparators?
Yes, the AD8564AR is pin compatible with the MAX901 but has lower supply currents.
- What is the common-mode voltage range of the AD8564AR?
The common-mode voltage range is from 0 V to 2.75 V.
- What is the typical analog supply current of the AD8564AR?
The typical analog supply current is 14.0 mA.
