ADC08062CIWMX Equivalent & Substitute Parts

Part Overview

The ADC08062CIWMX is an 8-bit analog-to-digital converter manufactured by Texas Instruments, featuring dual single-ended inputs with sigma-delta architecture and parallel data interface. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations. The part operates across industrial temperature ranges (-40°C to 85°C) with 5V analog and digital supply voltages.

Substiute Parts

ADC08062CIWMX

Texas InstrumentsIn Stock: 1177ADC08062CIWMX Datasheet

Current PartRFQ

AD7822BRZ

Analog Devices Inc.In Stock: 1434AD7822BRZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ADC08062CIWMX is evaluated based on the following critical parameters that define functional equivalence:

Mandatory Compatibility Parameters:

• Resolution: 8-bit conversion capability
• Data Interface: Parallel output format
• Package: 20-SOIC form factor with identical pin pitch (0.295", 7.50mm width)
• Operating Temperature Range: -40°C to 85°C minimum
• Surface Mount capability for PCB integration
• RoHS3 compliance for regulatory alignment

Functional Considerations:

• Input configuration (single-ended vs. differential)
• Sampling rate performance
• Architecture type (sigma-delta vs. pipelined)
• Supply voltage compatibility
• Reference voltage requirements

The AD7822BRZ from Analog Devices Inc. meets the core substitution criteria through matching resolution, parallel interface, identical package geometry, temperature range, and compliance certifications. Architectural differences (pipelined vs. sigma-delta) and input count variations represent functional trade-offs that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The AD7822BRZ qualifies as a functional substitute based on matching 8-bit resolution, parallel data interface, identical 20-SOIC package geometry, and industrial temperature range (-40°C to 85°C). Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity.

The primary design consideration involves the reduction from two inputs (ADC08062CIWMX) to one input (AD7822BRZ). Applications requiring dual-channel simultaneous sampling require architectural review or alternative solutions. The AD7822BRZ offers enhanced sampling rate (2M vs. 1.5M samples/second) and dual supply voltage support (2.7V–3.3V and 5V), providing operational flexibility for legacy 5V systems and modern lower-voltage designs.

The shift from sigma-delta to pipelined architecture introduces different conversion characteristics. Pipelined converters exhibit lower latency and different noise profiles compared to sigma-delta implementations. System-level signal processing and filtering requirements must be re-evaluated for the substitute architecture.

Frequently Asked Questions (FAQ)

Q: Can the AD7822BRZ directly replace the ADC08062CIWMX in existing PCB designs?

A: Physical and electrical compatibility exists for single-input applications. The 20-SOIC package footprint is identical, and both components operate across -40°C to 85°C with 5V supply capability. However, the reduction from two inputs to one input requires circuit redesign if dual-channel functionality is required. Pin-level compatibility must be verified against specific board layouts.

Q: What are the key differences between sigma-delta and pipelined architectures?

A: Sigma-delta converters (ADC08062CIWMX) provide high resolution through oversampling and noise shaping, typically with higher latency. Pipelined converters (AD7822BRZ) deliver faster conversion with lower latency but different noise characteristics. Application-specific signal processing chains must accommodate these architectural differences.

Q: Does the AD7822BRZ support the same reference voltage configuration?

A: The AD7822BRZ supports both external and internal reference types, compared to external-only reference for the ADC08062CIWMX. This provides additional design flexibility. Existing external reference circuits remain compatible.

Q: Are there supply voltage compatibility concerns?

A: Both components support 5V operation for legacy system compatibility. The AD7822BRZ additionally supports 2.7V–3.3V supplies, enabling use in modern low-voltage designs. Existing 5V supply designs transition without modification.

Q: What compliance certifications apply to both components?

A: Both the ADC08062CIWMX and AD7822BRZ maintain ROHS3 compliance and REACH unaffected status. No regulatory barriers exist for substitution in compliant applications.

Q: How does the increased sampling rate of the AD7822BRZ affect system design?

A: The AD7822BRZ sampling rate of 2M samples/second exceeds the ADC08062CIWMX rate of 1.5M samples/second. This provides higher bandwidth capability and faster conversion cycles. Existing signal processing chains designed for 1.5M samples/second operate within the AD7822BRZ capability envelope without modification.