ADCMP581BCPZ-R2 Equivalent & Substitute Parts

Part Overview

The ADCMP581BCPZ-R2 is a single-channel comparator with latch functionality, featuring complementary ECL output in a 16-LFCSP (3x3) surface mount package. This component is designed for high-speed signal comparison applications requiring latched output states. The part is currently discontinued at DiGi Electronics, making identification of active equivalent alternatives essential for ongoing production and design continuity.

Substiute Parts

ADCMP581BCPZ-R2

Analog Devices Inc.In Stock: 1049ADCMP581BCPZ-R2 Datasheet

Current PartRFQ

ADCMP581BCPZ-RL7

Analog Devices Inc.In Stock: 1349ADCMP581BCPZ-RL7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ADCMP581BCPZ-R2 is determined by strict equivalence across the following critical parameters:

• Single-channel comparator with latch output configuration
• Complementary ECL output type
• Supply voltage range: ±4.5V ~ 5.5V
• Input offset voltage maximum: 10mV @ ±5V
• Input bias current maximum: 30µA @ ±5V
• Output current typical: 44mA @ 5V
• Quiescent current maximum: 8mA
• CMRR and PSRR specifications: 60dB CMRR, 75dB PSRR
• Propagation delay maximum: 0.18ns
• Hysteresis: 1mV
• Operating temperature range: -40°C ~ 125°C
• Package type: 16-LFCSP (3x3) surface mount
• Base product number: ADCMP581

The ADCMP581BCPZ-RL7 meets all these criteria and is classified as a parametric equivalent. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The ADCMP581BCPZ-RL7 is the direct parametric equivalent for the discontinued ADCMP581BCPZ-R2. Both parts share identical electrical specifications, operating characteristics, and package geometry. Selection between these parts is determined by availability and compliance requirements.

The ADCMP581BCPZ-RL7 is currently in active production status with confirmed inventory availability. This part carries ROHS3 compliance certification, meeting environmental regulatory requirements for new designs and production runs. The packaging format difference (Cut Tape versus Reel) reflects supply chain configuration and does not affect electrical or mechanical compatibility.

For applications requiring the ADCMP581BCPZ-R2, the ADCMP581BCPZ-RL7 provides full functional and pin-level compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Are the ADCMP581BCPZ-R2 and ADCMP581BCPZ-RL7 pin-compatible?

A: Yes. Both parts use the 16-LFCSP (3x3) package with identical pin assignments and electrical characteristics. No PCB layout or schematic changes are required for substitution.

Q: What is the difference between the part numbers?

A: The suffix designations (-R2 and -RL7) indicate different manufacturing batches and packaging formats. The -R2 variant was supplied on reel packaging and is now discontinued. The -RL7 variant is supplied in cut tape format and remains in active production.

Q: Can I use the ADCMP581BCPZ-RL7 in existing designs that specify ADCMP581BCPZ-R2?

A: Yes. The electrical and mechanical specifications are identical. The ADCMP581BCPZ-RL7 is a direct replacement with no design modifications required.

Q: What is the significance of the ROHS3 compliance on the RL7 variant?

A: ROHS3 compliance indicates the part meets current environmental and hazardous substance restrictions. This certification is relevant for new production runs and designs targeting markets with environmental compliance requirements.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts operate within the same temperature range (-40°C ~ 125°C) and deliver identical electrical performance specifications including propagation delay, hysteresis, and output current characteristics.

Q: What packaging considerations apply to the cut tape format?

A: Cut tape packaging (CT) is suitable for automated pick-and-place assembly equipment. The 16-LFCSP (3x3) package dimensions and moisture sensitivity level (MSL 3, 168 hours) remain unchanged from the reel format.