ADCMP563
双路高速ECL比较器 Dual High Speed ECL Comparators
Product Details
The /ADCMP564 are high speed comparators fabricated on Analog Devices’ proprietary XFCB process. The devices feature a 700 ps propagation delay with less than 75 ps overdrive dispersion. Dispersion, a measure of the difference in propagation delay under differing overdrive conditions, is a particularly important characteristic of high speed comparators. A separate programmable hysteresis pin is available on the ADCMP564.
A differential input stage permits consistent propagation delay with a wide variety of signals in the common-mode range from −2.0 V to +3.0 V. Outputs are complementary digital signals that are fully compatible with ECL 10 K and 10 KH logic families. The outputs provide sufficient drive current to directly drive transmission lines terminated in 50 Ω to −2 V. A latch input, which is included, permits tracking, track-and-hold, or sample-and-hold modes of operation. The latch input pins contain internal pull-ups that set the latch in tracking mode when left open.
The ADCMP563/ADCMP564 are specified over the industrial temperature range −40°C to +85°C.
Applications
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- Automatic test equipment
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- High speed instrumentation
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- Scope and logic analyzer front ends
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- Window comparators
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- High speed line receivers
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- Threshold detection
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- Peak detection
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- High speed triggers
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- Patient diagnostics
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- Hand-held test instruments
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- Zero crossing detectors
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- Line receivers and signal restoration
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- Clock drivers
### Features and Benefits
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- Differential ECL-compatible outputs
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- 700 ps propagation delay input to output
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- 75 ps propagation delay dispersion
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- Input common-mode range: –2.0 V to +3.0 V
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- Robust input protection
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- Differential latch control
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- Internal latch pull-up resistors
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- Power supply rejection greater than 85 dB
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- 700 ps minimum pulse width
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- 1.5 GHz equivalent input rise time bandwidth
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- Typical output rise/fall time of 500 ps
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- ESD protection > 4kV HBM, >200V MM
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- Programmable hysteresis
