ADC08061CIWM Equivalent & Substitute Parts

Part Overview

The ADC08061CIWM is an 8-bit Sigma-Delta analog-to-digital converter manufactured by Texas Instruments, housed in a 20-SOIC surface mount package. This device features a single-ended input with external reference capability and operates across the industrial temperature range of -40°C to 85°C. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

ADC08061CIWM

Texas InstrumentsIn Stock: 3594ADC08061CIWM Datasheet

Current PartRFQ

TLC0820ACDW

Texas InstrumentsIn Stock: 1945TLC0820ACDW Datasheet

MFR RecommendedRFQ

TLC0820ACDWR

Texas InstrumentsIn Stock: 2006TLC0820ACDWR Datasheet

MFR RecommendedRFQ

AD7822BRZ

Analog Devices Inc.In Stock: 1434AD7822BRZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ADC08061CIWM is determined by the following critical parameters: 8-bit resolution, single-ended input configuration, parallel data interface, 20-SOIC package compatibility, and surface mount mounting type. The identified substitute parts maintain these core electrical and mechanical specifications while differing in architecture and performance characteristics.

The substitute parts are grouped into two categories based on their architectural approach:

Flash Architecture Substitutes (TLC0820ACDW, TLC0820ACDWR): These devices employ Flash ADC architecture with a sampling rate of 392k samples per second, lower than the original Sigma-Delta design. Both variants are manufactured by Texas Instruments and maintain the 20-SOIC package format. The primary distinction between these two substitutes is packaging: TLC0820ACDW is supplied in Tube packaging, while TLC0820ACDWR is supplied in Tape & Reel format. Both support supply voltages of 4.5V to 8V for analog and digital supplies, providing broader voltage compatibility than the fixed 5V requirement of the ADC08061CIWM. Operating temperature range is 0°C to 70°C, which is narrower than the original part's -40°C to 85°C range.

Pipelined Architecture Substitute (AD7822BRZ): This device from Analog Devices Inc. employs Pipelined ADC architecture with a sampling rate of 2M samples per second, exceeding the original part's 1.5M rate. The AD7822BRZ supports dual supply voltage options (2.7V to 3.3V or 5V) for both analog and digital supplies, offering greater flexibility. It maintains the 20-SOIC package and operates across the extended industrial temperature range of -40°C to 85°C, matching the original specification. The configuration includes MUX-S/H-ADC with external and internal reference options.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original ADC08061CIWM. All substitutes are classified as active products with current manufacturing support.

For applications requiring extended industrial temperature operation (-40°C to 85°C), the AD7822BRZ is the appropriate selection. This device provides higher sampling rate performance (2M samples per second) and maintains temperature specification parity with the original part. The AD7822BRZ also offers flexible supply voltage options and internal reference capability.

For applications operating within the 0°C to 70°C temperature range where lower sampling rates are acceptable, the TLC0820ACDW or TLC0820ACDWR provide cost-effective alternatives. Selection between these two variants depends solely on packaging requirements: TLC0820ACDW for tube packaging or TLC0820ACDWR for tape and reel format. Both devices support broader supply voltage ranges (4.5V to 8V), which may simplify power supply design in systems with variable input voltages.

Frequently Asked Questions (FAQ)

Q: Can the TLC0820ACDW or TLC0820ACDWR be used in applications requiring -40°C operation?

A: No. The TLC0820 series devices specify a minimum operating temperature of 0°C, making them unsuitable for applications requiring extended low-temperature operation. The AD7822BRZ is the only substitute that maintains the -40°C to 85°C operating range of the original ADC08061CIWM.

Q: What is the difference between TLC0820ACDW and TLC0820ACDWR?

A: These devices are electrically identical 8-bit Flash ADC converters with identical electrical specifications. The sole difference is packaging format: TLC0820ACDW is supplied in Tube packaging, while TLC0820ACDWR is supplied in Tape & Reel format. Selection depends on assembly process requirements and inventory management practices.

Q: Does the AD7822BRZ require different reference circuitry than the ADC08061CIWM?

A: The AD7822BRZ supports both external and internal reference options, whereas the ADC08061CIWM requires external reference only. Designs using external reference with the ADC08061CIWM can directly substitute the AD7822BRZ without reference circuit modification. Designs may optionally implement the internal reference capability of the AD7822BRZ if desired.

Q: Are all substitute parts available in the same 20-SOIC package?

A: Yes. All substitute parts are housed in the 20-SOIC (0.295", 7.50mm Width) package, ensuring mechanical compatibility with existing PCB layouts designed for the ADC08061CIWM.

Q: What is the impact of different ADC architectures on system performance?

A: The ADC08061CIWM uses Sigma-Delta architecture optimized for high resolution and low noise. The TLC0820 series uses Flash architecture, which provides faster conversion but lower sampling rates (392k vs. 1.5M). The AD7822BRZ uses Pipelined architecture, offering higher sampling rates (2M) with moderate latency. Architecture selection should align with application bandwidth and noise requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance with the original ADC08061CIWM.