ADC0820BCWM/NOPB Equivalent & Substitute Parts

Part Overview

The ADC0820BCWM/NOPB is an 8-bit flash analog-to-digital converter manufactured by Texas Instruments, housed in a 20-SOIC surface mount package. This component features a single pseudo-differential or single-ended input with parallel data interface and external voltage reference configuration. The part is currently obsolete, making equivalent substitutes necessary for new designs or production continuity. Suitable alternatives maintain the same core architecture, bit resolution, package form factor, and electrical specifications while offering active product status and extended temperature operating ranges.

Substiute Parts

ADC0820BCWM/NOPB

Texas InstrumentsIn Stock: 929ADC0820BCWM/NOPB Datasheet

Current PartRFQ

TLC0820AIDW

Texas InstrumentsIn Stock: 1283TLC0820AIDW Datasheet

DirectRFQ

TLC0820AIDWR

Texas InstrumentsIn Stock: 2190TLC0820AIDWR Datasheet

MFR RecommendedRFQ

AD7820LRZ

Analog Devices Inc.In Stock: 1414AD7820LRZ Datasheet

MFR RecommendedRFQ

AD7820LRZ-REEL

Analog Devices Inc.In Stock: 2402AD7820LRZ-REEL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ADC0820BCWM/NOPB is determined by the following critical parameters:

• Bit Resolution: 8-bit architecture required
• Input Configuration: Single input, flash architecture
• Data Interface: Parallel output interface
• Package Form Factor: 20-SOIC surface mount package
• Supply Voltage Compatibility: Analog and digital supply ranges must accommodate 4.5V ~ 8V operation
• Reference Configuration: External voltage reference type

The substitute parts identified—TLC0820AIDW, TLC0820AIDWR, AD7820LRZ, and AD7820LRZ-REEL—meet all these core requirements. The primary distinction between the main part and substitutes is product status: the ADC0820BCWM/NOPB is obsolete, while all identified substitutes maintain active status. Additionally, substitute parts offer extended operating temperature ranges (-40°C ~ 85°C) compared to the original part (0°C ~ 70°C), providing broader application flexibility.

Parameter Comparison

Engineering Selection Recommendations

Texas Instruments TLC0820AIDW and TLC0820AIDWR: Both parts are active Texas Instruments products within the LinCMOS™ series. The TLC0820AIDWR is the manufacturer-recommended substitute, available in tape and reel packaging with higher inventory levels (2147 pcs). The TLC0820AIDW offers equivalent electrical performance in tube packaging. Both maintain ROHS3 compliance and support the full 4.5V ~ 8V supply voltage range of the original part, with extended operating temperature coverage (-40°C ~ 85°C).

Analog Devices AD7820LRZ and AD7820LRZ-REEL: Both are active Analog Devices products offering identical 8-bit flash ADC architecture in 20-SOIC packaging. The AD7820LRZ-REEL is the manufacturer-recommended option with tape and reel packaging and maximum inventory availability (2300 pcs). These parts operate at fixed 5V supply levels, which is compatible with the original part's 4.5V ~ 8V range but does not provide the full voltage flexibility. Both maintain ROHS3 compliance and extended temperature operation.

Selection between Texas Instruments and Analog Devices substitutes depends on supply voltage requirements: use TLC0820 variants for designs requiring the full 4.5V ~ 8V range; use AD7820 variants for 5V-only applications. Packaging selection (tube versus tape and reel) should align with production volume and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can the ADC0820BCWM/NOPB be directly replaced with TLC0820AIDW or TLC0820AIDWR?

A: Yes. Both TLC0820 variants are direct functional equivalents. They maintain identical 8-bit resolution, single-input flash architecture, parallel data interface, 20-SOIC package form factor, and external reference configuration. The TLC0820AIDWR is the manufacturer-recommended substitute. Pin-for-pin compatibility and electrical performance are equivalent within the specified operating parameters.

Q: What is the key difference between TLC0820AIDW and TLC0820AIDWR?

A: Both parts are electrically identical. The primary difference is packaging: TLC0820AIDW is supplied in tube packaging, while TLC0820AIDWR is supplied in tape and reel format. Selection depends on production volume and assembly line requirements.

Q: Are the Analog Devices AD7820LRZ parts fully compatible with the ADC0820BCWM/NOPB?

A: The AD7820LRZ and AD7820LRZ-REEL are functionally equivalent in terms of bit resolution, architecture, package, and interface. However, they operate at fixed 5V supply levels rather than the original part's 4.5V ~ 8V range. For applications requiring operation across the full 4.5V ~ 8V voltage range, use Texas Instruments TLC0820 variants instead.

Q: What is the difference between AD7820LRZ and AD7820LRZ-REEL?

A: Both parts are electrically identical. AD7820LRZ is supplied in tube packaging, while AD7820LRZ-REEL is supplied in tape and reel format. Selection depends on production volume and assembly requirements.

Q: Do all substitute parts maintain the same operating temperature range as the original?

A: No. The ADC0820BCWM/NOPB operates from 0°C ~ 70°C, while all substitute parts (TLC0820AIDW, TLC0820AIDWR, AD7820LRZ, AD7820LRZ-REEL) operate from -40°C ~ 85°C. This extended range in substitutes provides greater flexibility for applications requiring broader temperature operation.

Q: Are all parts ROHS3 compliant?

A: Yes. The ADC0820BCWM/NOPB and all identified substitute parts are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and use.

Q: Which substitute should I select for a new design?

A: For new designs, select from the active substitute parts: TLC0820AIDWR (Texas Instruments, tape and reel) or AD7820LRZ-REEL (Analog Devices, tape and reel). Both are manufacturer-recommended options with active product status. Choose based on supply voltage requirements: TLC0820 for 4.5V ~ 8V operation, AD7820 for 5V-only applications.