XR8054ATP14X Equivalent & Substitute Parts

Part Overview

The XR8054ATP14X is a voltage feedback operational amplifier featuring four independent circuits in a 14-TSSOP surface mount package. Manufactured by MaxLinear, Inc., this device is designed for rail-to-rail output applications with a gain bandwidth product of 260 MHz and slew rate of 190 V/µs. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. Substitute parts must maintain compatibility across electrical performance parameters, package form factor, and operating specifications to ensure direct replacement capability.

Substiute Parts

XR8054ATP14X

MaxLinear, Inc.In Stock: 25191XR8054ATP14X Datasheet

Current PartRFQ

AD8054ARUZ

Analog Devices Inc.In Stock: 1999AD8054ARUZ Datasheet

MFR RecommendedRFQ

LMH6644MTX/NOPB

Texas InstrumentsIn Stock: 26050LMH6644MTX/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XR8054ATP14X is determined by strict adherence to the following critical parameters:

Package Compatibility: All substitute parts must use the 14-TSSOP surface mount package with identical 0.173" (4.40mm) width to ensure PCB layout compatibility without redesign.

Functional Architecture: Substitute parts must provide four independent voltage feedback amplifier circuits with rail-to-rail output capability to maintain circuit functionality.

Electrical Performance Envelope: Substitute parts must operate within the supply voltage range of 2.7 V to 12.6 V minimum and support the operating temperature range of -40°C to 125°C. Input bias current, input offset voltage, slew rate, and output current per channel are secondary parameters that define performance characteristics but do not preclude substitution if primary parameters are met.

Mounting and Handling: Surface mount configuration and MSL rating of 1 (Unlimited) are required for manufacturing compatibility.

The identified substitute parts—AD8054ARUZ (Analog Devices Inc.) and LMH6644MTX/NOPB (Texas Instruments)—satisfy all primary substitution criteria while maintaining active product status for long-term availability.

Parameter Comparison

Engineering Selection Recommendations

AD8054ARUZ (Analog Devices Inc.): This part maintains active product status with ROHS3 compliance and REACH unaffected designation. The device supports the full operating temperature range of -40°C to 125°C and operates within the supply voltage envelope. The -3dB bandwidth of 160 MHz exceeds the original specification, and slew rate matches at 190 V/µs. Input offset voltage is higher at 1.8 mV compared to 500 µV, and output current per channel is reduced to 30 mA from 100 mA. These differences require circuit-level evaluation for specific applications. Packaging and mounting specifications are identical.

LMH6644MTX/NOPB (Texas Instruments): This part is active with ROHS3 compliance and REACH unaffected status. The device operates within the supply voltage range with identical minimum specification of 2.7 V. The operating temperature range is limited to -40°C to 85°C, which does not cover the full 125°C maximum of the original part. The -3dB bandwidth of 130 MHz and slew rate of 135 V/µs are lower than the original specifications. Output current per channel is 75 mA, intermediate between the original and AD8054ARUZ. Packaging and mounting specifications are identical. This part is suitable for applications not requiring operation above 85°C.

Both substitute parts satisfy primary substitution criteria of package compatibility, four-circuit architecture, rail-to-rail output, and surface mount configuration. Selection between them depends on specific application requirements for output current capability, bandwidth performance, and maximum operating temperature.

Frequently Asked Questions (FAQ)

Q: Can the AD8054ARUZ directly replace the XR8054ATP14X without PCB modifications?

A: Yes, the AD8054ARUZ uses the identical 14-TSSOP package with 0.173" (4.40mm) width, enabling direct pin-for-pin replacement without PCB layout changes. However, circuit performance differences in output current (30 mA vs. 100 mA) and input offset voltage (1.8 mV vs. 500 µV) must be evaluated for specific application requirements.

Q: Is the LMH6644MTX/NOPB suitable for applications requiring operation at 125°C?

A: No. The LMH6644MTX/NOPB has a maximum operating temperature of 85°C, which does not meet the original specification range of -40°C to 125°C. This part is suitable only for applications with maximum operating temperatures at or below 85°C.

Q: What is the impact of reduced output current in the AD8054ARUZ (30 mA per channel vs. 100 mA)?

A: The AD8054ARUZ provides 30 mA output current per channel compared to 100 mA in the original XR8054ATP14X. Applications requiring higher output current must use external buffering or select the LMH6644MTX/NOPB, which provides 75 mA per channel.

Q: Are both substitute parts RoHS compliant?

A: Yes, both AD8054ARUZ and LMH6644MTX/NOPB are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the significance of the -3dB bandwidth differences among the three parts?

A: The XR8054ATP14X specifies 90 MHz -3dB bandwidth, while AD8054ARUZ provides 160 MHz and LMH6644MTX/NOPB provides 130 MHz. Higher bandwidth in substitute parts generally indicates improved frequency response but does not preclude substitution. Applications with specific bandwidth requirements must verify compatibility with actual circuit performance.

Q: Can I use either substitute part interchangeably in the same design?

A: No. The two substitute parts have different electrical characteristics. AD8054ARUZ supports the full -40°C to 125°C temperature range but provides lower output current. LMH6644MTX/NOPB provides higher output current but is limited to -40°C to 85°C operation. Selection depends on specific application requirements for temperature range and output current capability.

Q: What is the minimum supply voltage requirement for each part?

A: XR8054ATP14X and LMH6644MTX/NOPB both specify 2.7 V minimum supply voltage. AD8054ARUZ requires a minimum of 3 V. Applications operating at 2.7 V to 2.99 V must use either the original part or LMH6644MTX/NOPB.