THS4022CDR Equivalent & Substitute Parts

Part Overview

The THS4022CDR is a voltage feedback amplifier integrated circuit manufactured by Texas Instruments, featuring dual circuits in an 8-SOIC surface mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and component procurement. The THS4022CDR delivers high-speed amplification with a 350 MHz gain bandwidth product and 470 V/µs slew rate, suitable for applications requiring fast signal processing in a compact form factor.

Substiute Parts

THS4022CDR

Texas InstrumentsIn Stock: 2846THS4022CDR Datasheet

Current PartRFQ

AD826ARZ

Analog Devices Inc.In Stock: 12664AD826ARZ Datasheet

MFR RecommendedRFQ

AD826ARZ-REEL

Analog Devices Inc.In Stock: 2682AD826ARZ-REEL Datasheet

MFR RecommendedRFQ

AD826ARZ-REEL7

Analog Devices Inc.In Stock: 5737AD826ARZ-REEL7 Datasheet

MFR RecommendedRFQ

AD828ARZ

Analog Devices Inc.In Stock: 1689AD828ARZ Datasheet

MFR RecommendedRFQ

AD828ARZ-REEL7

Analog Devices Inc.In Stock: 16477AD828ARZ-REEL7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the THS4022CDR are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

• Amplifier Type: Voltage Feedback (all substitutes maintain this topology)
• Number of Circuits: 2 (dual-channel configuration preserved)
• Package / Case: 8-SOIC (0.154", 3.90mm Width) (identical physical footprint)
• Mounting Type: Surface Mount (same assembly method)
• RoHS Status: ROHS3 Compliant (regulatory alignment)

Electrical Performance Considerations: The substitute parts are grouped into two categories based on bandwidth and slew rate specifications:

Group 1 - AD826ARZ Series (AD826ARZ, AD826ARZ-REEL, AD826ARZ-REEL7): These Analog Devices parts maintain the 8-SOIC package and dual-circuit configuration. They operate within the supply voltage range of 5 V to 36 V, which encompasses the THS4022CDR range of 9 V to 32 V. The AD826ARZ series features a 50 MHz gain bandwidth product and 350 V/µs slew rate, representing lower performance specifications than the original part.

Group 2 - AD828ARZ Series (AD828ARZ, AD828ARZ-REEL7): These Analog Devices parts also maintain the 8-SOIC package and dual-circuit configuration. They provide higher performance with a 130 MHz gain bandwidth product and 450 V/µs slew rate, closer to the original THS4022CDR specifications. Supply voltage range is 5 V to 36 V (single/dual supply capable).

All substitute parts are active products with current manufacturing status, ensuring long-term availability and supply chain stability.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement with Minimal Performance Impact:

The AD828ARZ and AD828ARZ-REEL7 are the preferred substitutes when bandwidth and slew rate performance are critical to circuit operation. These parts deliver 130 MHz gain bandwidth product and 450 V/µs slew rate, which approach the original THS4022CDR specifications of 350 MHz and 470 V/µs respectively. Both variants are active products with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring regulatory alignment and manufacturing continuity.

For Cost-Optimized Applications with Reduced Bandwidth Requirements:

The AD826ARZ series (including AD826ARZ, AD826ARZ-REEL, and AD826ARZ-REEL7) provides a lower-cost alternative when application bandwidth requirements do not exceed 50 MHz. These parts maintain identical package geometry and dual-circuit configuration while reducing supply current to 6.6 mA per channel. All three variants are active products with ROHS3 compliance. The packaging variants (Tube, Cut Tape & Digi-Reel®, and Cut Tape & Digi-Reel® with alternative reel specification) accommodate different procurement and assembly workflows.

Supply Voltage Compatibility:

All substitute parts operate within the 5 V to 36 V supply range, which encompasses the original THS4022CDR specification of 9 V to 32 V. Designs operating at the lower end of the THS4022CDR range (9 V minimum) remain compatible with substitutes, as the minimum supply voltage for all alternatives is 5 V.

Output Current Consideration:

The THS4022CDR specifies 100 mA output current per channel, while all substitute parts limit output current to 50 mA per channel. Applications requiring the full 100 mA output capability require circuit redesign or alternative component selection.

Temperature Range:

The AD826ARZ series extends operating temperature range to -40°C to 85°C, compared to the THS4022CDR range of 0°C to 70°C. This provides enhanced flexibility for industrial and extended-temperature applications.

Frequently Asked Questions (FAQ)

Q: Can the AD826ARZ series directly replace the THS4022CDR in all applications?

A: The AD826ARZ series maintains identical package geometry (8-SOIC), dual-circuit configuration, and voltage feedback topology. However, the 50 MHz gain bandwidth product is significantly lower than the THS4022CDR's 350 MHz specification. Direct replacement is suitable only for applications where bandwidth requirements do not exceed 50 MHz. Applications requiring higher bandwidth performance should use the AD828ARZ series instead.

Q: What is the difference between AD826ARZ, AD826ARZ-REEL, and AD826ARZ-REEL7?

A: These three part numbers represent the same integrated circuit with different packaging and delivery formats. AD826ARZ is supplied in Tube packaging. AD826ARZ-REEL and AD826ARZ-REEL7 are supplied in Cut Tape (CT) & Digi-Reel® format, with the REEL7 variant using an alternative reel specification. Electrical specifications and performance are identical across all three variants. Selection depends on procurement requirements and assembly line compatibility.

Q: Why does the THS4022CDR specify 100 mA output current while substitutes limit output to 50 mA?

A: Output current capability is an inherent design characteristic of each integrated circuit. The THS4022CDR and substitute parts are distinct designs with different output stage specifications. Applications requiring 100 mA output current cannot use the 50 mA-limited substitutes without circuit modification, such as adding external output buffers or current amplification stages.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (AD826ARZ series and AD828ARZ series) carry ROHS3 Compliant certification, matching the regulatory status of the original THS4022CDR. All parts also carry REACH Unaffected status and are classified under ECCN EAR99.

Q: What is the moisture sensitivity level (MSL) for substitute parts?

A: All substitute parts carry MSL 1 (Unlimited) rating, identical to the THS4022CDR. This indicates the lowest moisture sensitivity classification, requiring no special moisture control during storage or handling.

Q: Can I use AD828ARZ in place of AD826ARZ?

A: Both parts maintain the 8-SOIC package and dual-circuit configuration, enabling physical and electrical compatibility at the board level. However, the AD828ARZ delivers higher performance (130 MHz bandwidth, 450 V/µs slew rate) compared to AD826ARZ (50 MHz bandwidth, 350 V/µs slew rate). The AD828ARZ also draws higher supply current (14 mA total versus 6.6 mA for AD826ARZ). Substitution is possible but may require circuit validation to confirm performance alignment with design specifications.

Q: What is the supply voltage range for each substitute part?

A: The AD826ARZ series and AD828ARZ series both operate within a 5 V to 36 V supply range. The original THS4022CDR operates within 9 V to 32 V. All substitute parts are compatible with the original supply voltage range, and additionally support lower supply voltages down to 5 V for designs requiring reduced supply voltage operation.

Q: Are there any temperature range limitations when substituting parts?

A: The AD826ARZ series extends the operating temperature range to -40°C to 85°C, compared to the THS4022CDR range of 0°C to 70°C. This provides enhanced capability for low-temperature and industrial applications. If your design operates within the original 0°C to 70°C range, both the original and substitute specifications are compatible.