D555 overview

D555 is a component documented by Advanced Linear Devices. The PDF description identifies it as "112dB 192kHz 24-BIT SCH DAC." This guide condenses the most useful engineering information from the available PDF so that designers and sourcing teams can identify the checks that still need confirmation in the original document.

Datasheet snapshot

  • Manufacturer: Advanced Linear Devices
  • Part number: D555
  • Category: IC
  • Datasheet length: 4 Pages

Key features noted in the PDF

  • Functional equivalent to NE555 with greatly expanded high and low frequency ranges
  • High speed, low power, monolithic CMOS technology
  • Low supply current 100 µA typical
  • Extremely low trigger, threshold and reset currents -- 1pA typical
  • High speed operation -- 2MHz oscillation
  • Low operating supply voltage 2 to 12V
  • Operates in both monostable and astable modes

Applications listed in the PDF

  • High speed one-shot (monostable) pulse generation
  • Precision timing
  • Sequential timing
  • Long delay timer
  • Pulse width and pulse position modulation
  • Missing pulse detector

Specifications and operating details

The following points were extracted from the PDF text. Check the associated conditions, notes and limits in the complete document before using a value in a design.

  • It offers the benefits of high input impedance, thereby allowing smaller timing capacitors and longer timing cycle; high speed, with typical cycle time of 500ns; low power dissipation for battery operated environment; reduced supply curren.
  • There are three matched internal resistors (approximately 200KΩ each) that set the threshold and trigger levels at two-thirds and one-third respectively of V+ .
  • When the trigger input is below the trigger level, the output is in the high state and sourcing 2mA.
  • When threshold input is above the threshold level at the same time the trigger input is above the trigger level, the internal flip-flop is reset, the output goes to the low state and sinks up to 10mA.
  • The reset input overrides all other inputs and when it is active (reset voltage less than 1V), the output is in the low state.
  • Functional equivalent to NE555 with greatly expanded high and low frequency ranges High speed, low power, monolithic CMOS technology Low supply current 100 µA typical Extremely low trigger, threshold and reset currents -- 1pA typical High.

Topics covered by the datasheet

The document includes sections related to:

  • APPLICATIONS
  • FEATURES
  • ORDERING INFORMATION

Engineering review checklist

  • Check resistance value, tolerance, temperature coefficient and long-term stability over the operating range.
  • Derate continuous power for ambient temperature and verify pulse or surge capability separately.
  • Match the land pattern, termination finish and current-sense routing to the exact package option.

Always confirm values against the latest manufacturer-controlled datasheet, especially when qualifying a substitute or releasing a production BOM.

View the complete PDF and model record

Open the D555 datasheet and model details to review the complete PDF, document pages and available product information.

Source attribution

Adapted from the PDF associated with this DigiCamel model page.

Source model URL: https://www.digicamel.com/product.php?slug=d555-advanced-linear-devices

D555 Advanced Linear Devices IC D555 datasheet D555 specifications D555 applications