THS1230IPWG4 Equivalent & Substitute Parts

Part Overview

The THS1230IPWG4 is a 12-bit pipelined analog-to-digital converter manufactured by Texas Instruments, designed for single-channel differential input data acquisition applications. This device operates with a 30 MHz sampling rate and is housed in a 28-TSSOP surface mount package. The product is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

THS1230IPWG4

Texas InstrumentsIn Stock: 1063THS1230IPWG4 Datasheet

Current PartRFQ

ADS4122IRGZT

Texas InstrumentsIn Stock: 1338ADS4122IRGZT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the THS1230IPWG4 is determined by the following core electrical and mechanical parameters:

• Resolution: 12-bit conversion capability
• Sampling Rate: Minimum 30 MHz performance requirement
• Input Configuration: Single differential input channel
• Architecture: Pipelined ADC topology
• Data Interface: Parallel output capability
• Supply Voltage Compatibility: Operating voltage ranges must support system requirements
• Temperature Range: -40°C to 85°C operational specification
• Compliance: ROHS3 compliance and REACH unaffected status

The ADS4122IRGZT qualifies as a substitute based on matching resolution, input configuration, architecture, and temperature range. However, differences in supply voltage, sampling rate, data interface options, and package type must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The ADS4122IRGZT is the manufacturer-recommended substitute for the obsolete THS1230IPWG4. Both devices maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment.

Key considerations for selection:

Advantages of ADS4122IRGZT: Active product status ensures long-term availability and support. The 65 MHz sampling rate exceeds the original 30 MHz specification, providing performance headroom. Dual data interface options (LVDS and Parallel) offer flexibility in system integration.

Design Integration Requirements: The ADS4122IRGZT operates at 1.7V to 1.9V supply voltage, compared to the THS1230IPWG4's 3V to 3.6V range. System power supply architecture must be modified to accommodate this lower voltage requirement. The 48-VQFN package differs from the original 28-TSSOP, requiring PCB layout redesign and increased board space allocation.

Frequently Asked Questions (FAQ)

Q: Can the ADS4122IRGZT directly replace the THS1230IPWG4 without circuit modifications?

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

Q: What is the impact of the higher 65 MHz sampling rate on system design?

A: The ADS4122IRGZT's 65 MHz sampling rate exceeds the original 30 MHz requirement. This provides performance margin but does not require system modifications if the original 30 MHz specification is sufficient. Higher sampling rates may increase power consumption and data throughput requirements.

Q: Are there package compatibility considerations?

A: Yes. The ADS4122IRGZT uses a 48-pin VQFN package with exposed pad, while the THS1230IPWG4 uses a 28-pin TSSOP package. Pin count, pinout, and footprint are different, requiring complete PCB redesign.

Q: Do both devices support the same data interface?

A: The THS1230IPWG4 provides parallel output only. The ADS4122IRGZT supports both LVDS and parallel interfaces, offering greater flexibility for system integration.

Q: Are regulatory certifications equivalent?

A: Yes. Both devices are ROHS3 compliant and REACH unaffected, maintaining equivalent regulatory status for industrial and commercial applications.