Overview
The ADCMP551BRQ, produced by Analog Devices Inc., is a single-supply, high-speed comparator fabricated on Analog Devices’ proprietary XFCB process. This device is part of the ADCMP551, ADCMP552, and ADCMP553 family, known for their high performance and reliability. The ADCMP551BRQ is particularly notable for its fast propagation delay and low overdrive dispersion, making it suitable for a variety of high-speed applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Propagation Delay | - | 500 ps | - | ps |
| Overdrive Dispersion | - | 75 ps | - | ps |
| Input Supply Voltage (VCCI) | 3.135 V | 3.3 V | 5.25 V | V |
| Output Supply Voltage (VCCO) | 3.135 V | 3.3 V | 5.25 V | V |
| Input Supply Current (IVCCI) @ 3.3 V | 8 mA | 12 mA | 17 mA | mA |
| Output Supply Current (IVCCO) @ 3.3 V without load | 3 mA | 5 mA | 9 mA | mA |
| Output Supply Current (IVCCO) @ 3.3 V with load | 40 mA | 55 mA | 70 mA | mA |
| Common-Mode Voltage Range | -0.2 V | - | VCCI - 2.0 V | V |
| Equivalent Input Rise Time Bandwidth | - | 750 MHz | - | MHz |
| Minimum Pulse Width | 700 ps | - | - | ps |
Key Features
- Single-supply operation with a voltage range of 3.135 V to 5.25 V.
- High-speed propagation delay of 500 ps with low overdrive dispersion of less than 125 ps.
- Differential input stage with a common-mode range from -0.2 V to VCCI - 2.0 V.
- Complementary digital outputs compatible with PECL and 3.3 V LVPECL logic families.
- Sufficient drive current to directly drive transmission lines terminated in 50 Ω to VCCO - 2 V.
- Latch input for tracking, track-and-hold, or sample-and-hold modes of operation.
- Internal latch pull-up resistors for setting the latch in tracking mode when left open.
- High power supply rejection ratio greater than 70 dB.
Applications
- Automatic test equipment.
- High-speed instrumentation.
- Scope and logic analyzer front ends.
- Window comparators.
- High-speed line receivers.
- Threshold detection.
- Peak detection.
- High-speed triggers.
- Patient diagnostics.
- Disk drive read channel detection.
- Hand-held test instruments.
- Zero crossing detectors.
- Clock drivers.
Q & A
- What is the propagation delay of the ADCMP551BRQ?
The propagation delay of the ADCMP551BRQ is 500 ps.
- What is the overdrive dispersion of the ADCMP551BRQ?
The overdrive dispersion is less than 125 ps.
- What is the common-mode voltage range of the ADCMP551BRQ?
The common-mode voltage range is from -0.2 V to VCCI - 2.0 V.
- What logic families are the outputs of the ADCMP551BRQ compatible with?
The outputs are fully compatible with PECL and 3.3 V LVPECL logic families.
- What is the minimum pulse width for the ADCMP551BRQ?
The minimum pulse width is 700 ps.
- Does the ADCMP551BRQ have a latch function?
- What is the power supply rejection ratio of the ADCMP551BRQ?
The power supply rejection ratio is greater than 70 dB.
- What are some common applications of the ADCMP551BRQ?
Common applications include automatic test equipment, high-speed instrumentation, scope and logic analyzer front ends, and more.
- What is the operating temperature range of the ADCMP551BRQ?
The operating temperature range is from -40°C to +85°C.
- What package type is the ADCMP551BRQ available in?
The ADCMP551BRQ is available in a 16-lead QSOP package.
