ADS826E Equivalent & Substitute Parts

Part Overview

The ADS826E is a 10-bit pipelined analog-to-digital converter manufactured by Texas Instruments, designed for single-channel data acquisition applications. It features a 60 MHz sampling rate, supports both differential and single-ended inputs, and operates on 5V supply voltage. The device is packaged in a 28-SSOP surface-mount package and is currently classified as obsolete. Due to its obsolete status and limited availability in new production, identifying functionally compatible substitute components is essential for ongoing system support and new design implementations.

Substiute Parts

ADS826E

Texas InstrumentsIn Stock: 1841ADS826E Datasheet

Current PartRFQ

ADS4122IRGZT

Texas InstrumentsIn Stock: 1338ADS4122IRGZT Datasheet

MFR RecommendedRFQ

THS1060CPHP

Texas InstrumentsIn Stock: 694THS1060CPHP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ADS826E is determined by the following core parameters:

• Resolution (Number of Bits): 10-bit conversion capability
• Sampling Rate: 60 MHz minimum performance
• Architecture: Pipelined ADC topology
• Number of Inputs: Single-channel configuration
• Supply Voltage: 5V operation capability
• Operating Temperature Range: -40°C to 85°C
• Data Interface: Parallel output
• Configuration: Sample-and-Hold with ADC (S/H-ADC) in 1:1 ratio

The identified substitute parts maintain compatibility with these core electrical and functional parameters, though packaging and certain supply voltage specifications may differ. Substitutes are selected based on functional equivalence within the allowed parameter set, not on performance enhancement or feature expansion.

Parameter Comparison

Engineering Selection Recommendations

ADS4122IRGZT: This substitute offers active product status with ROHS3 compliance, making it suitable for new designs and long-term availability. The 12-bit resolution provides enhanced precision beyond the original 10-bit specification. However, the supply voltage requirement of 1.7V to 1.9V differs significantly from the ADS826E's 5V operation, necessitating additional power supply circuitry modifications. The 48-VQFN package requires PCB layout redesign compared to the 28-SSOP footprint. This substitute is appropriate when system redesign is feasible and enhanced resolution is acceptable.

THS1060CPHP: This substitute maintains the 10-bit resolution and 60 MHz sampling rate of the original ADS826E, with identical 5V supply voltage requirements, minimizing circuit redesign. However, it carries obsolete product status and RoHS non-compliance, limiting its suitability for new production or regulated applications. The 48-HTQFP package differs from the original 28-SSOP, requiring PCB layout modifications. This substitute is appropriate only for legacy system maintenance where component availability is confirmed and regulatory compliance is not a requirement.

Frequently Asked Questions (FAQ)

Q: Can the ADS4122IRGZT directly replace the ADS826E without circuit modifications?

A: No. While both devices are pipelined single-channel ADCs with compatible operating temperature ranges, the ADS4122IRGZT requires 1.7V to 1.9V supply voltage compared to the ADS826E's 5V requirement. This necessitates additional power supply circuitry. Additionally, the package change from 28-SSOP to 48-VQFN requires PCB layout redesign.

Q: What is the primary advantage of the ADS4122IRGZT over the ADS826E?

A: The ADS4122IRGZT offers active product status with current manufacturing availability and ROHS3 compliance. It also provides 12-bit resolution compared to the ADS826E's 10-bit resolution and a slightly higher 65 MHz sampling rate versus 60 MHz.

Q: Is the THS1060CPHP a suitable substitute for new production designs?

A: The THS1060CPHP is not recommended for new production designs. Although it maintains the 10-bit resolution, 60 MHz sampling rate, and 5V supply voltage of the ADS826E, it carries obsolete product status and RoHS non-compliance. It is suitable only for legacy system maintenance where component availability is confirmed.

Q: What are the key differences in packaging between these three devices?

A: The ADS826E uses a 28-SSOP package (0.209" width, 5.30mm). The ADS4122IRGZT uses a 48-VQFN (7x7) package with exposed pad. The THS1060CPHP uses a 48-HTQFP (7x7) package. All three are surface-mount devices, but the different pin counts and footprints require distinct PCB designs.

Q: Can the ADS826E accept single-ended inputs?

A: Yes. The ADS826E supports both differential and single-ended input configurations. The ADS4122IRGZT supports differential inputs only, while the THS1060CPHP also supports differential inputs only. This represents a functional limitation when substituting with either alternative if single-ended operation is required.

Q: What is the moisture sensitivity level difference between these devices?

A: The ADS826E has MSL 2 (1 Year), the ADS4122IRGZT has MSL 3 (168 Hours), and the THS1060CPHP has MSL 1 (Unlimited). Lower MSL values indicate greater tolerance to moisture exposure during storage and handling.