Overview
The ADCMP562BRQZ is a high-speed comparator produced by Analog Devices Inc. It is part of the ADCMP561/ADCMP562 series, fabricated on Analog Devices' proprietary XFCB process. This dual comparator is known for its high performance, featuring a 700 ps propagation delay and less than 75 ps overdrive dispersion. The device is designed to operate over a wide common-mode range from −2.0 V to +3.0 V, making it versatile for various signal processing applications. The ADCMP562BRQZ is packaged in a 20-Lead QSOP and is specified over the industrial temperature range of −40°C to +85°C.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Propagation Delay | tPD | 700 | ps | |||
| Overdrive Dispersion | < 75 | ps | ||||
| Input Voltage Range | VIN | −2.0 | 3.0 | V | ||
| Input Differential Voltage | VIN_DIFF | −5 | 5 | V | ||
| Input Offset Voltage | 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 |
| Positive Supply Voltage | VCC | 4.75 | 5.0 | 5.25 | V | |
| Negative Supply Voltage | VEE | −4.96 | −5.2 | −5.45 | V | |
| Logic Supply Current (without load) | IVDD | @ 3.3 V | 6 | 9 | 13 | mA |
| Logic Supply Current (with load) | IVDD | @ 3.3 V | 45 | 60 | 70 | mA |
Key Features
- High-Speed Operation: 700 ps propagation delay with less than 75 ps overdrive dispersion.
- Programmable Hysteresis: Separate programmable hysteresis pin available on the ADCMP562.
- Differential Input Stage: Consistent propagation delay with a wide variety of signals in the common-mode range from −2.0 V to +3.0 V.
- PECL Compatibility: Outputs are fully compatible with PECL 10 K and 10 KH logic families.
- Latch Input: Permits tracking, track-and-hold, or sample-and-hold modes of operation with internal pull-ups setting the latch in tracking mode when left open.
- Industrial Temperature Range: Specified over −40°C to +85°C.
Applications
The ADCMP562BRQZ is suitable for various high-speed signal processing applications, including:
- High-speed data acquisition systems.
- Telecommunication systems requiring fast signal comparison.
- Medical imaging and diagnostic equipment.
- Industrial control systems needing precise signal detection.
- Aerospace and defense applications where high reliability and speed are critical.
Q & A
- What is the propagation delay of the ADCMP562BRQZ?
The propagation delay of the ADCMP562BRQZ is 700 ps.
- What is the overdrive dispersion of the ADCMP562BRQZ?
The overdrive dispersion is less than 75 ps.
- What is the common-mode voltage range for the ADCMP562BRQZ?
The common-mode voltage range is from −2.0 V to +3.0 V.
- Is the ADCMP562BRQZ compatible with PECL logic families?
Yes, the outputs are fully compatible with PECL 10 K and 10 KH logic families.
- What modes of operation are supported by the latch input of the ADCMP562BRQZ?
The latch input supports tracking, track-and-hold, or sample-and-hold modes of operation.
- What is the temperature range over which the ADCMP562BRQZ is specified?
The device is specified over the industrial temperature range of −40°C to +85°C.
- What is the package type of the ADCMP562BRQZ?
The device is packaged in a 20-Lead QSOP.
- Can the ADCMP562BRQZ drive transmission lines directly?
Yes, the outputs provide sufficient drive current to directly drive transmission lines terminated in 50 Ω to VDD − 2 V.
- What are the typical supply currents for the ADCMP562BRQZ?
The typical supply currents are 9 mA for VDD (without load) and 60 mA for VDD (with load).
- Does the ADCMP562BRQZ have internal pull-ups for the latch input?
Yes, the latch input pins contain internal pull-ups that set the latch in tracking mode when left open.
