ADS7817UG4 Equivalent & Substitute Parts

Part Overview

The ADS7817UG4 is a 12-bit Analog to Digital Converter (ADC) manufactured by Texas Instruments, configured as a single-input SAR (Successive Approximation Register) architecture with SPI data interface. This component operates on 5V supply for both analog and digital domains, with a sampling rate of 200 kSPS and external reference configuration. The ADS7817UG4 is classified as obsolete, making identification of active equivalent and substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

ADS7817UG4

Texas InstrumentsIn Stock: 698ADS7817UG4 Datasheet

Current PartRFQ

ADS7816U

Texas InstrumentsIn Stock: 1602ADS7816U Datasheet

Parametric EquivalentRFQ

ADS7816UB

Texas InstrumentsIn Stock: 1294ADS7816UB Datasheet

Parametric EquivalentRFQ

ADS7816UC

Burr BrownIn Stock: 2051ADS7816UC Datasheet

Parametric EquivalentRFQ

ADS7817UC

Burr BrownIn Stock: 3133ADS7817UC Datasheet

Parametric EquivalentRFQ

ISL267817IBZ

Renesas Electronics CorporationIn Stock: 2135ISL267817IBZ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ADS7817UG4 is determined by strict equivalence across the following parameters: 12-bit resolution, single differential input, SAR architecture, 200 kSPS sampling rate, SPI interface, external reference configuration, 5V analog and digital supply voltages, -40°C to 85°C operating temperature range, and 8-SOIC package format. All identified substitute parts maintain identical electrical and mechanical specifications across these criteria. Substitution is valid only when all parameters match without exception.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain full parametric equivalence to the ADS7817UG4 across electrical and mechanical specifications. Selection among active alternatives should prioritize product status and regulatory compliance:

ADS7816U and ADS7816UB are Texas Instruments active products with ROHS3 compliance, offering direct manufacturer continuity. ADS7816UC (Burr Brown) and ADS7817UC (Burr Brown) are active products suitable for applications requiring Burr Brown sourcing. ISL267817IBZ (Renesas Electronics) is an active product with ROHS3 compliance and MSL 1 rating, providing superior moisture sensitivity performance compared to MSL 2 alternatives.

All substitute parts are pin-compatible and functionally equivalent within the specified parameter set. No design modifications are required for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can ADS7816U replace ADS7817UG4 directly? A: Yes. ADS7816U maintains identical electrical parameters (12-bit resolution, 200 kSPS sampling rate, SPI interface, 5V supply, external reference, differential input) and mechanical specifications (8-SOIC package). ADS7816U is an active product, addressing the obsolescence status of ADS7817UG4.

Q: What is the difference between ADS7816U, ADS7816UB, and ADS7816UC? A: All three parts are parametrically equivalent with identical electrical and mechanical specifications. Differences exist only in packaging format (Tube, Tube, and Bulk respectively) and manufacturer designation (Texas Instruments for U and UB; Burr Brown for UC). Selection depends on procurement requirements and supplier availability.

Q: Is ISL267817IBZ compatible with ADS7817UG4? A: Yes. ISL267817IBZ is parametrically equivalent across all specified electrical and mechanical parameters. The primary distinction is manufacturer (Renesas Electronics) and moisture sensitivity level (MSL 1 versus MSL 2), which may provide advantages in high-humidity storage or assembly environments.

Q: Are all substitute parts available in the same 8-SOIC package? A: Yes. All identified substitute parts use the 8-SOIC (0.154", 3.90mm Width) package format, ensuring mechanical and pin compatibility without PCB layout modifications.

Q: Which substitute part has the best regulatory compliance? A: ADS7816U, ADS7816UB, and ISL267817IBZ all carry ROHS3 compliance. ISL267817IBZ additionally features MSL 1 rating (unlimited shelf life) compared to MSL 2 (1 year) for other alternatives, providing enhanced reliability in long-term storage scenarios.