ADC10158CIWM Equivalent & Substitute Parts

Part Overview

The ADC10158CIWM is a 10-bit Analog to Digital Converter manufactured by Texas Instruments, designed for data acquisition applications with 8 input channels and a SAR (Successive Approximation Register) architecture. This device operates at a sampling rate of 227 kSPS and supports multiple input configurations including differential, pseudo-differential, and single-ended modes.

The ADC10158CIWM is classified as obsolete. Finding equivalent or substitute parts is necessary to ensure continued availability for new designs, system upgrades, or component replenishment when original stock becomes unavailable.

Substiute Parts

ADC10158CIWM

Texas InstrumentsIn Stock: 5477ADC10158CIWM Datasheet

Current PartRFQ

TLV1578CDA

Texas InstrumentsIn Stock: 1282TLV1578CDA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ADC10158CIWM is determined by the following critical parameters:

• Resolution: 10-bit conversion capability
• Channel Count: 8 input channels
• Architecture: SAR-based analog to digital conversion
• Data Interface: Parallel output
• Supply Voltage Compatibility: Operating voltage ranges that support 5V operation
• Sampling Rate: Minimum performance threshold of 227 kSPS

The TLV1578CDA qualifies as a substitute based on matching resolution (10-bit), channel count (8 inputs), SAR architecture, parallel data interface, and supply voltage range that encompasses 5V operation. However, differences in package type, input configuration options, operating temperature range, and product status must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The TLV1578CDA is an active product from Texas Instruments and represents the recommended substitute for the obsolete ADC10158CIWM. Key considerations for selection:

Product Status: The TLV1578CDA is actively manufactured and supported, ensuring long-term availability and supply chain stability compared to the obsolete ADC10158CIWM.

Compliance: The TLV1578CDA is ROHS3 compliant, whereas the ADC10158CIWM is RoHS non-compliant. This distinction is critical for applications subject to RoHS regulations.

Operating Temperature Range: The ADC10158CIWM supports -40°C to 85°C operation, while the TLV1578CDA operates from 0°C to 70°C. Applications requiring extended low-temperature operation below 0°C must account for this limitation.

Package Transition: The ADC10158CIWM uses a 28-SOIC package, while the TLV1578CDA uses a 32-TSSOP package. PCB layout and footprint redesign is required for substitution.

Input Configuration: The ADC10158CIWM supports differential and pseudo-differential input modes, while the TLV1578CDA supports single-ended inputs only. Applications requiring differential input capability must evaluate alternative solutions.

Frequently Asked Questions (FAQ)

Q: Can the TLV1578CDA directly replace the ADC10158CIWM without PCB modifications?

A: No. The TLV1578CDA uses a 32-TSSOP package while the ADC10158CIWM uses a 28-SOIC package. PCB footprint redesign and layout modifications are required.

Q: What is the impact of the higher sampling rate in the TLV1578CDA?

A: The TLV1578CDA operates at 1.25 MSPS compared to the ADC10158CIWM at 227 kSPS. This higher sampling rate provides improved performance for applications requiring faster conversion speeds and does not create compatibility issues for lower-speed applications.

Q: Are there input configuration differences between these devices?

A: Yes. The ADC10158CIWM supports differential, pseudo-differential, and single-ended input modes. The TLV1578CDA supports single-ended inputs only. Applications requiring differential input capability must evaluate alternative parts or implement external signal conditioning.

Q: What are the supply voltage compatibility considerations?

A: The ADC10158CIWM requires fixed 5V supplies for both analog and digital domains. The TLV1578CDA accepts 2.7V to 5.5V for both supplies, providing greater flexibility for mixed-voltage system designs.

Q: Does the operating temperature range difference affect substitution feasibility?

A: The ADC10158CIWM operates from -40°C to 85°C, while the TLV1578CDA operates from 0°C to 70°C. Applications requiring operation below 0°C cannot use the TLV1578CDA as a substitute.

Q: What is the significance of the RoHS compliance difference?

A: The ADC10158CIWM is RoHS non-compliant, while the TLV1578CDA is ROHS3 compliant. New designs and applications subject to RoHS regulations must use the TLV1578CDA or equivalent compliant alternatives.