LT1127ACN#PBF Equivalent & Substitute Parts

Part Overview

The LT1127ACN#PBF is a general purpose operational amplifier manufactured by Analog Devices Inc., configured as a 4-circuit integrated circuit in a 14-PDIP through-hole package. This device is classified as Last Time Buy, indicating discontinued production with limited inventory availability. The LT1127ACN#PBF serves applications requiring general purpose amplification with moderate bandwidth and low input bias current characteristics. Identification of equivalent substitute parts is necessary due to product status constraints and long-term supply chain planning requirements.

Substiute Parts

LT1127ACN#PBF

Analog Devices Inc.In Stock: 795LT1127ACN#PBF Datasheet

Current PartRFQ

AD704JNZ

Analog Devices Inc.In Stock: 2225AD704JNZ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LT1127ACN#PBF is determined by the following critical parameters:

Mandatory Matching Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 4
• Package / Case: 14-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Supplier Device Package: 14-PDIP
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Parameter Variance: Substitute parts must accommodate the electrical operating envelope defined by the minimum and maximum supply voltage specifications and operating temperature range. Differences in slew rate, gain bandwidth product, input bias current, input offset voltage, and supply current are permissible provided the substitute part functions within the application's electrical requirements.

The AD704JNZ meets all mandatory matching criteria and operates within compatible electrical parameters, qualifying it as a direct substitute for the LT1127ACN#PBF in 14-PDIP through-hole applications.

Parameter Comparison

Engineering Selection Recommendations

LT1127ACN#PBF Status Considerations: The LT1127ACN#PBF carries Last Time Buy product status with 716 units in current inventory. This classification indicates production discontinuation and finite supply availability. Selection of this part number is appropriate only for applications with immediate deployment requirements or existing designs locked to this specific device.

AD704JNZ Status Considerations: The AD704JNZ maintains Active product status with 2138 units in inventory, indicating ongoing manufacturing and long-term availability. This part number is suitable for new designs, production ramp scenarios, and applications requiring extended supply chain stability.

Compliance and Certification: Both the LT1127ACN#PBF and AD704JNZ are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS coding (8542.33.0001). Both devices carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling.

Substitution Applicability: The AD704JNZ functions as a direct substitute for the LT1127ACN#PBF in through-hole PCB applications utilizing 14-PDIP package footprints. Electrical parameter differences (slew rate, bandwidth, input bias current, supply current) do not preclude substitution; however, application-specific performance requirements must be evaluated independently. The AD704JNZ operates at reduced minimum supply voltage (4V versus 8V) and narrower operating temperature range (0°C to 70°C versus -40°C to 85°C), which may impose constraints in specific thermal or supply voltage environments.

Frequently Asked Questions (FAQ)

Q: Can the AD704JNZ replace the LT1127ACN#PBF in existing PCB designs?

A: Yes. Both devices utilize identical 14-PDIP through-hole package geometry (0.300", 7.62mm) and pin configuration. Direct substitution at the PCB level is mechanically and electrically compatible. Pin-for-pin compatibility is maintained across all 14 pins.

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

A: The LT1127ACN#PBF provides higher slew rate (11V/µs versus 0.1V/µs) and higher gain bandwidth product (65MHz versus 800kHz). The AD704JNZ exhibits lower input bias current (100pA versus 7nA) and lower supply current consumption (1.5mA versus 2.6mA per channel). The LT1127ACN#PBF supports minimum supply voltage of 8V; the AD704JNZ operates at 4V minimum.

Q: Are there temperature range limitations with the AD704JNZ?

A: The AD704JNZ operates over 0°C to 70°C, compared to the LT1127ACN#PBF range of -40°C to 85°C. Applications requiring operation below 0°C or above 70°C must retain the LT1127ACN#PBF or identify alternative devices with extended temperature specifications.

Q: Do both devices meet current regulatory requirements?

A: Yes. Both the LT1127ACN#PBF and AD704JNZ are ROHS3 compliant and REACH unaffected. Both carry identical ECCN (EAR99) and HTSUS (8542.33.0001) classifications, satisfying current export and environmental compliance standards.

Q: What is the significance of Last Time Buy status for the LT1127ACN#PBF?

A: Last Time Buy status indicates that Analog Devices Inc. has discontinued production of the LT1127ACN#PBF. Current inventory (716 units) represents the final available stock. Once depleted, this part number will not be remanufactured. New designs should transition to the AD704JNZ or alternative active devices to ensure long-term supply availability.

Q: Can the AD704JNZ be used in applications requiring the LT1127ACN#PBF's higher bandwidth?

A: No. The AD704JNZ gain bandwidth product (800kHz) is substantially lower than the LT1127ACN#PBF (65MHz). Applications dependent on high-frequency response or fast slew rate performance require retention of the LT1127ACN#PBF or identification of alternative high-bandwidth devices.

Q: Are there supply voltage compatibility issues between these devices?

A: The AD704JNZ minimum supply voltage is 4V, while the LT1127ACN#PBF requires minimum 8V. Applications operating at supply voltages between 4V and 8V can utilize the AD704JNZ but not the LT1127ACN#PBF. Both devices support maximum supply voltage of 36V.