Overview
The AD96687BRZ is a high-performance, ultrafast dual comparator IC produced by Analog Devices Inc. This device is part of the AD96687 series, known for its exceptional speed and precision. The AD96687BRZ features two comparators in a single package, each with a propagation delay of 2.5 ns and a propagation delay dispersion of 50 ps, ensuring consistent performance across various signal conditions.
The device includes a fast, high-precision differential input stage that operates within a common-mode range from -2.5 V to +5 V. The outputs are complementary digital signals compatible with ECL 10 K and 10 KH logic families, capable of driving transmission lines terminated in 50 Ω to -2 V. Additionally, the AD96687BRZ includes a level-sensitive latch input, enabling tracking, track-hold, or sample-hold modes of operation.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Propagation Delay | - | 2.5 | 3.5 | ns |
| Input Offset Voltage (Vos) | - | - | 2 | mV |
| Input Bias Current (Ib) | - | - | 10 | µA |
| Output Current per Channel | - | - | 30 | mA |
| Common Mode Rejection Ratio (CMRR) | - | - | 90 | dB |
| Power Supply Rejection Ratio (PSRR) | - | - | 70 | dB |
| Operating Temperature Range | -25 | - | 85 | °C |
| Supply Voltage Range | 4.75 | - | 5.25 | V |
| Quiescent Current | - | - | 18/36 | mA |
Key Features
- Ultrafast propagation delay of 2.5 ns with 50 ps propagation delay dispersion.
- High-precision differential input stage with a common-mode range from -2.5 V to +5 V.
- Complementary digital outputs compatible with ECL 10 K and 10 KH logic families.
- Outputs capable of driving transmission lines terminated in 50 Ω to -2 V.
- Level-sensitive latch input for tracking, track-hold, or sample-hold modes of operation.
- High common mode rejection ratio (CMRR) of 90 dB and power supply rejection ratio (PSRR) of 70 dB.
- Operating temperature range from -25°C to +85°C.
- Available in 16-pin SOIC package.
Applications
- High-speed data acquisition systems.
- Instrumentation such as spectrum analyzers and network analyzers.
- Digital oscilloscopes.
- Radar systems.
- Communications systems, including diversity multiband and multimode digital receivers.
- General-purpose software radios.
- Ultrawideband satellite receivers.
Q & A
- What is the propagation delay of the AD96687BRZ?
The propagation delay of the AD96687BRZ is 2.5 ns with a maximum of 3.5 ns.
- What is the common-mode range of the AD96687BRZ?
The common-mode range is from -2.5 V to +5 V.
- What type of logic family are the outputs compatible with?
The outputs are compatible with ECL 10 K and 10 KH logic families.
- What is the maximum output current per channel?
The maximum output current per channel is 30 mA.
- What is the operating temperature range of the AD96687BRZ?
The operating temperature range is from -25°C to +85°C.
- What package types are available for the AD96687BRZ?
The AD96687BRZ is available in a 16-pin SOIC package.
- What is the typical quiescent current of the AD96687BRZ?
The typical quiescent current is 18 mA, with a maximum of 36 mA.
- What are the key applications of the AD96687BRZ?
The key applications include high-speed data acquisition, instrumentation, digital oscilloscopes, radar systems, and communications systems.
- How does the latch input function on the AD96687BRZ?
The latch input allows for tracking, track-hold, or sample-hold modes of operation. In the 'compare' mode (logic HIGH), the output tracks changes at the input. In the 'latch' mode (logic LOW), the output reflects the input state just prior to the comparator being placed in the 'latch' mode.
- What are the supply voltage requirements for the AD96687BRZ?
The supply voltage range is from 4.75 V to 5.25 V.
