Catalog
Single - Supply, High Speed PECL Comparators
| Part | Current - Output (Typ) | Output Type | Current - Input Bias (Max) [Max] | Propagation Delay (Max) [Max] | Voltage - Supply, Single/Dual (±) [Min] | Voltage - Supply, Single/Dual (±) [Max] | CMRR, PSRR (Typ) [custom] | CMRR, PSRR (Typ) [custom] | Voltage - Input Offset (Max) | Package / Case | Package / Case | Package / Case | Operating Temperature [Min] | Operating Temperature [Max] | Hysteresis [Max] | Hysteresis [Min] | Supplier Device Package | Number of Elements [custom] | Type | Current - Quiescent (Max) [Max] | Mounting Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analog Devices Inc ADCMP552BRQZ | 55 mA | Complementary, Differential, LVPECL, Open-Emitter, PECL | 28 µA | 0.625 ns | 3.14 V | 5.25 V | 75 dB | 76 dB | 10 mV | 0.154 in | 20-SSOP | 3.9 mm | -40 °C | 85 °C | 1 mV | -1 mV | 20-QSOP | 2 | with Latch | 17 mA | Surface Mount |
Analog Devices Inc ADCMP552BRQ | 55 mA | Complementary, Differential, LVPECL, Open-Emitter, PECL | 28 µA | 0.625 ns | 3.14 V | 5.25 V | 75 dB | 76 dB | 10 mV | 0.154 in | 20-SSOP | 3.9 mm | -40 °C | 85 °C | 1 mV | -1 mV | 20-QSOP | 2 | with Latch | 17 mA | Surface Mount |
Key Features
• Single Power Supply
• 750 ps Propagation Delay Input to Output
• 100 ps Propagation Delay Dispersion
• Differential PECL Compatible Outputs
• Differential Latch Control
• Power Supply Rejection Greater than 70 dB
• Internal Latch Pull-up Resistors
• 750 ps Minimum Pulse Width
• Equivalent Input Rise Time Bandwidth > 750 MHz
• Typical Output Rise/Fall of 500 ps
• Programmable Hysteresis
Description
AI
TheADCMP551/ ADCMP552 /ADCMP553are single supply, high speed comparators fabricated on Analog Devices’ proprietary XFCB process. The devices feature a 750 ps propagation delay with less than 150 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 ADCMP552.A differential input stage permits consistent propagation delay with a common-mode range from –0.2 V to VCCI – 2.0 V. Outputs are complementary digital signals are fully compatible with PECL 10 K and 10 KH logic families. The outputs provide sufficient drive current to directly drive transmission lines terminated in 50 . to VCCO - 2 V. A latch input is included and permits tracking, track-and-hold, or sample-and-hold modes of operation. The latch input pins contain internal pullups that set the latch in tracking mode when left open.The ADCMP551 / ADCMP552 / ADCMP553 are specified over the –40°C to +85°C industrial temperature range. The ADCMP551 is available in a 16-lead QSOP package; the ADCMP552 is available in a 20-lead QSOP package; and the ADCMP553 is available in an 8-lead MSOP package.APPLICATIONSAutomatic test equipmentHigh speed instrumentationScope and logic analyzer front endsWindow comparatorsHigh speed line receiversThreshold detectionPeak detectionHigh speed triggersPatient diagnosticsDisk drive read channel detectionHand-held test instrumentsZero crossing detectorsLine receivers and signal restorationClock drivers