ADC0820BCV Equivalent & Substitute Parts

Part Overview

The ADC0820BCV is an 8-bit flash analog-to-digital converter manufactured by Texas Instruments, housed in a 20-PLCC (9x9) surface mount package. This device features a single pseudo-differential or single-ended input with parallel data interface and external voltage reference configuration. The ADC0820BCV is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support.

Key Parameters

Parameter	Value
Resolution	8 Bit
Number of Inputs	1
Architecture	Flash
Data Interface	Parallel
Configuration	S/H-ADC
Reference Type	External
Package / Case	20-LCC (J-Lead)
Supplier Device Package	20-PLCC (9x9)
Mounting Type	Surface Mount
Voltage - Supply, Analog	4.5V ~ 8V
Voltage - Supply, Digital	4.5V ~ 8V
Operating Temperature	0°C ~ 70°C

Substitute Part Grouping Explanation

Substitution eligibility for the ADC0820BCV is determined by the following critical parameters:

Resolution: 8-bit conversion capability
Package Compatibility: 20-PLCC (9x9) surface mount form factor
Interface: Parallel data output with single input channel
Architecture: Flash conversion topology
Reference Configuration: External voltage reference requirement
Supply Voltage Range: Analog and digital supply compatibility within 4.5V to 8V envelope

The substitute parts listed below maintain these core electrical and mechanical specifications, enabling direct functional replacement in circuit designs. Variations in operating temperature range, sampling rate, and compliance certifications do not preclude substitution when the application requirements align with the substitute part's specifications.

Parameter Comparison

Parameter	ADC0820BCV	TLC0820AIFN	AD7820KPZ	TLC0820ACFN
Manufacturer	Texas Instruments	Texas Instruments	Analog Devices Inc.	Texas Instruments
Resolution	8 Bit	8 Bit	8 Bit	8 Bit
Number of Inputs	1	1	1	1
Architecture	Flash	Flash	Flash	Flash
Data Interface	Parallel	Parallel	Parallel	Parallel
Configuration	S/H-ADC	S/H-ADC	S/H-ADC	S/H-ADC
Reference Type	External	External	External	External
Package / Case	20-LCC (J-Lead)	20-LCC (J-Lead)	20-LCC (J-Lead)	20-LCC (J-Lead)
Supplier Device Package	20-PLCC (9x9)	20-PLCC (9x9)	20-PLCC (9x9)	20-PLCC (9x9)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Voltage - Supply, Analog	4.5V ~ 8V	4.5V ~ 8V	5V	4.5V ~ 8V
Voltage - Supply, Digital	4.5V ~ 8V	4.5V ~ 8V	5V	4.5V ~ 8V
Operating Temperature	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C
Sampling Rate (Per Second)	Not specified	392k	Not specified	392k
Product Status	Obsolete	Last Time Buy	Active	Last Time Buy
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

TLC0820AIFN (Texas Instruments, Last Time Buy): This LinCMOS™ series device provides extended operating temperature range (-40°C to 85°C) and ROHS3 compliance. The 392 kHz sampling rate is specified. This part is suitable for applications requiring broader temperature performance than the original ADC0820BCV while maintaining the 4.5V to 8V supply voltage range.

AD7820KPZ (Analog Devices Inc., Active): This is the only active product in the substitute group, offering long-term availability and ROHS3 compliance. The supply voltage specification is fixed at 5V for both analog and digital supplies, which represents a narrower operating envelope than the ADC0820BCV. This part is appropriate for designs with 5V supply architecture and extended temperature requirements (-40°C to 85°C).

TLC0820ACFN (Texas Instruments, Last Time Buy): This LinCMOS™ series device maintains the original operating temperature range (0°C to 70°C) and supply voltage flexibility (4.5V to 8V). ROHS3 compliance and 392 kHz sampling rate are specified. This part provides the closest functional match to the ADC0820BCV with modern compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can the AD7820KPZ replace the ADC0820BCV in all applications?

A: The AD7820KPZ is functionally compatible for core ADC operations. However, its fixed 5V supply specification differs from the ADC0820BCV's 4.5V to 8V range. Designs operating outside the 5V nominal supply must use TLC0820AIFN or TLC0820ACFN instead.

Q: What is the difference between TLC0820AIFN and TLC0820ACFN?

A: Both are LinCMOS™ series devices with identical electrical specifications and 392 kHz sampling rate. The primary difference is operating temperature range: TLC0820AIFN operates from -40°C to 85°C, while TLC0820ACFN operates from 0°C to 70°C. Select based on application temperature requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. TLC0820AIFN, AD7820KPZ, and TLC0820ACFN are all ROHS3 compliant. The original ADC0820BCV is RoHS non-compliant, making these substitutes necessary for new designs subject to RoHS regulations.

Q: Will the substitute parts fit the existing PCB layout?

A: Yes. All substitute parts use the identical 20-PLCC (9x9) surface mount package with 20-LCC (J-Lead) case specification. No PCB redesign is required for package compatibility.

Q: Which substitute part should I select for new designs?

A: AD7820KPZ is recommended for new designs due to its active product status, ensuring long-term availability and support. If supply voltage flexibility beyond 5V is required, select TLC0820AIFN or TLC0820ACFN based on operating temperature requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message