Overview
The ADCMP561BRQZ is a high-speed comparator integrated circuit produced by Analog Devices Inc. It is part of the ADCMP561/ADCMP562 family, fabricated using Analog Devices' proprietary XFCB process. This device is known for its exceptional speed and low dispersion, making it suitable for high-performance applications. The ADCMP561BRQZ features a propagation delay of 700 ps and less than 75 ps overdrive dispersion, ensuring consistent performance across various input conditions.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Voltage Range | -2.0 | 3.0 | V | |||
| Input Differential Voltage | -5 | 5 | V | |||
| Input Offset Voltage (VOS) | VOS | VCM = 0 V | -10.0 | ±2.0 | 10.0 | mV |
| Input Bias Current | IIN | -IN = -2 V, +IN = +3 V | -10.0 | ±3 | 10.0 | µA |
| Propagation Delay | 700 | ps | ||||
| Overdrive Dispersion | < 75 | ps | ||||
| Positive Supply Current | IVCC | @ +5.0 V | 2 | 3.2 | 5 | mA |
| Negative Supply Current | IVEE | @ -5.2 V | 10 | 22 | 28 | mA |
| Logic Supply Current | IVDD | @ 3.3 V without load | 6 | 9 | 13 | mA |
Key Features
- High-Speed Operation: The ADCMP561BRQZ boasts a propagation delay of 700 ps and less than 75 ps overdrive dispersion, making it ideal for high-speed applications.
- Differential Input Stage: The device features a differential input stage that allows for consistent propagation delay across a wide range of common-mode voltages from -2.0 V to +3.0 V.
- Programmable Hysteresis: The ADCMP562 variant includes a separate programmable hysteresis pin, which is not available in the ADCMP561 but can be relevant for similar applications.
- Complementary Digital Outputs: The outputs are complementary digital signals, ensuring clear and reliable output states.
- Low Input Offset Voltage: The input offset voltage is typically ±2.0 mV, contributing to high accuracy in comparisons.
- Low Input Bias Current: The input bias current is typically ±3 µA, minimizing the impact on the input signal.
Applications
- High-Speed Data Acquisition Systems: The high-speed and low dispersion characteristics make this comparator suitable for high-speed data acquisition systems.
- Telecommunications: It can be used in telecommunications equipment where fast and accurate signal comparisons are necessary.
- Industrial Automation: The device is useful in industrial automation for high-speed signal processing and comparison.
- Medical Devices: Its precision and speed make it a candidate for use in medical devices requiring accurate and fast signal comparisons.
Q & A
- What is the propagation delay of the ADCMP561BRQZ?
The propagation delay of the ADCMP561BRQZ is 700 ps.
- What is the overdrive dispersion of the ADCMP561BRQZ?
The overdrive dispersion is less than 75 ps.
- What is the input voltage range of the ADCMP561BRQZ?
The input voltage range is from -2.0 V to +3.0 V.
- What is the typical input offset voltage of the ADCMP561BRQZ?
The typical input offset voltage is ±2.0 mV.
- Does the ADCMP561BRQZ have programmable hysteresis?
No, the ADCMP561BRQZ does not have programmable hysteresis. This feature is available in the ADCMP562 variant.
- What are the typical supply currents for the ADCMP561BRQZ?
The positive supply current (IVCC) is typically 3.2 mA at +5.0 V, the negative supply current (IVEE) is typically 22 mA at -5.2 V, and the logic supply current (IVDD) is typically 9 mA at 3.3 V without load.
- What is the common-mode voltage range for the ADCMP561BRQZ?
The common-mode voltage range is from -1.5 V to +2.5 V.
- What is the maximum toggle rate of the ADCMP561BRQZ?
The maximum toggle rate is greater than 800 MHz for more than 50% output swing.
- What is the input bias current of the ADCMP561BRQZ?
The input bias current is typically ±3 µA.
- What are the package options for the ADCMP561BRQZ?
The ADCMP561BRQZ is available in a 16-Lead QSOP package.
