THS1230IPW Equivalent & Substitute Parts

Part Overview

The THS1230IPW is a 12-bit pipelined analog-to-digital converter manufactured by Texas Instruments, housed in a 28-TSSOP surface mount package. This device features a single differential input with a 30 MHz sampling rate and operates on 3V to 3.6V supply voltage for both analog and digital domains. The product is currently obsolete, making identification of suitable substitute components essential for design continuity and procurement planning.

Substiute Parts

THS1230IPW

Texas InstrumentsIn Stock: 751THS1230IPW Datasheet

Current PartRFQ

ADS4122IRGZT

Texas InstrumentsIn Stock: 1338ADS4122IRGZT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the THS1230IPW is determined by the following core electrical and mechanical parameters:

• Resolution: 12-bit conversion capability
• Architecture: Pipelined ADC topology
• Input Configuration: Single differential input channel
• Data Interface: Parallel output
• Configuration: Sample-and-Hold with ADC (S/H-ADC) in 1:1 ratio
• Operating Temperature Range: -40°C to 85°C
• Compliance: ROHS3 and REACH requirements

The ADS4122IRGZT qualifies as a manufacturer-recommended substitute based on matching resolution, architecture, input type, and temperature range. However, critical differences exist in supply voltage requirements, sampling rate, and package form factor that must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The ADS4122IRGZT is designated as the manufacturer-recommended substitute for the obsolete THS1230IPW. Both devices maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent component selection.

Selection of the ADS4122IRGZT requires evaluation of the following design considerations:

Supply voltage compatibility: The ADS4122IRGZT operates at 1.7V to 1.9V, requiring redesign of power distribution circuits compared to the 3V to 3.6V requirement of the THS1230IPW.

Sampling rate capability: The ADS4122IRGZT provides 65 MHz sampling rate, exceeding the 30 MHz specification of the THS1230IPW. This enhanced performance is backward compatible with applications requiring lower sampling rates.

Package transition: The ADS4122IRGZT uses a 48-VQFN (7x7) package versus the 28-TSSOP package of the original device. PCB layout redesign is required to accommodate the different pin count and footprint.

Moisture sensitivity: The ADS4122IRGZT has MSL 3 (168 hours) compared to MSL 1 (unlimited) for the THS1230IPW, requiring stricter handling and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the ADS4122IRGZT directly replace the THS1230IPW without circuit modifications?

A: No. While both devices share 12-bit resolution and pipelined architecture, the ADS4122IRGZT requires different supply voltages (1.7V–1.9V versus 3V–3.6V) and uses a different package (48-VQFN versus 28-TSSOP). Circuit redesign is necessary.

Q: What are the key electrical differences between these devices?

A: The primary differences are supply voltage range and sampling rate. The ADS4122IRGZT operates at lower voltage (1.7V–1.9V) and provides higher sampling rate (65 MHz versus 30 MHz). Both maintain identical resolution, input configuration, and operating temperature range.

Q: Is the ADS4122IRGZT suitable for applications requiring 30 MHz sampling?

A: Yes. The ADS4122IRGZT's 65 MHz sampling capability is backward compatible with applications requiring 30 MHz or lower sampling rates. The higher performance does not create incompatibility with lower-speed requirements.

Q: What packaging considerations apply to the ADS4122IRGZT?

A: The ADS4122IRGZT uses a 48-pin VQFN package with 7mm x 7mm dimensions, compared to the 28-pin TSSOP package of the THS1230IPW. PCB layout, routing, and thermal management designs must be updated accordingly.

Q: Are there compliance or handling differences?

A: Both devices are ROHS3 compliant and REACH unaffected. However, the ADS4122IRGZT has MSL 3 (168-hour moisture sensitivity) versus MSL 1 (unlimited) for the THS1230IPW, requiring stricter environmental controls during storage and assembly.