SA5230DG Equivalent & Substitute Parts

Part Overview

The SA5230DG is a general-purpose operational amplifier manufactured by onsemi, housed in an 8-SOIC surface-mount package. This device features rail-to-rail output capability and is designed for linear amplification applications requiring single-circuit configurations. The SA5230DG is classified as obsolete, making identification of functionally equivalent substitute components essential for ongoing design support, production continuity, and system maintenance.

Substiute Parts

SA5230DG

onsemiIn Stock: 1093SA5230DG Datasheet

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ALD1701SAL

Advanced Linear Devices Inc.In Stock: 1224ALD1701SAL Datasheet

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TS1851IDT

STMicroelectronicsIn Stock: 12888TS1851IDT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SA5230DG is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 1
• Output Type: Rail-to-Rail
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount

Secondary Compatibility Parameters:

• Slew Rate: Equal to or greater than 0.25 V/µs
• Gain Bandwidth Product: Equal to or greater than 600 kHz
• Current - Input Bias: Equal to or less than 40 nA
• Voltage - Input Offset: Equal to or less than 400 µV
• Current - Supply: Equal to or less than 1.1 mA
• Current - Output / Channel: Equal to or greater than 32 mA
• Voltage - Supply Span (Min): Equal to or less than 1.8 V
• Voltage - Supply Span (Max): Equal to or greater than 15 V
• Operating Temperature Range: Must encompass or exceed -40°C to 85°C

The substitute parts identified below meet the primary substitution criteria and maintain compatibility within the secondary electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

TS1851IDT (STMicroelectronics)

The TS1851IDT is an active product offering direct functional equivalence to the SA5230DG. Both devices share identical package geometry (8-SOIC), mounting type (surface mount), and core amplifier specifications (general purpose, single circuit, rail-to-rail output). The TS1851IDT demonstrates superior performance in input bias current (16 nA versus 40 nA) and output current capability (48 mA versus 32 mA). The extended operating temperature range (-40°C to 125°C) provides broader environmental coverage than the SA5230DG. However, the maximum supply voltage is limited to 6 V compared to the SA5230DG's 15 V maximum. The TS1851IDT carries RoHS3 compliance certification, ensuring regulatory alignment for modern manufacturing environments.

ALD1701SAL (Advanced Linear Devices Inc.)

The ALD1701SAL is an active product meeting primary substitution criteria with identical package and mounting specifications. This device exhibits superior slew rate performance (1 V/µs versus 0.25 V/µs) and higher gain bandwidth product (700 kHz versus 600 kHz). Input bias current is significantly lower (1 pA versus 40 nA), and supply current consumption is minimal (120 µA versus 1.1 mA). The ALD1701SAL is RoHS3 compliant. Operational temperature range is restricted to 0°C to 70°C, which does not encompass the full -40°C to 85°C range of the SA5230DG. Maximum supply voltage is limited to 10 V, and output current per channel is reduced to 1 mA, which falls below the SA5230DG specification of 32 mA. These limitations restrict the ALD1701SAL to applications not requiring extended temperature operation or high output current delivery.

Frequently Asked Questions (FAQ)

Q: Can the TS1851IDT directly replace the SA5230DG in all applications?

A: The TS1851IDT provides functional equivalence in package, mounting type, and core amplifier topology. However, the maximum supply voltage specification of 6 V must be verified against your circuit design. If your application requires supply voltages exceeding 6 V, the TS1851IDT is not suitable. The extended operating temperature range of the TS1851IDT (-40°C to 125°C) exceeds the SA5230DG requirement.

Q: What are the key differences between TS1851IDT and ALD1701SAL?

A: Both devices share identical package and mounting specifications. The TS1851IDT supports higher maximum supply voltage (6 V versus 10 V for ALD1701SAL) and higher output current per channel (48 mA versus 1 mA). The ALD1701SAL offers superior slew rate (1 V/µs versus 0.25 V/µs) and lower supply current consumption (120 µA versus 162 µA). The TS1851IDT operates across a wider temperature range (-40°C to 125°C versus 0°C to 70°C).

Q: Is the 8-SOIC package identical across all three devices?

A: Yes. All three devices—SA5230DG, TS1851IDT, and ALD1701SAL—utilize the 8-SOIC package with 0.154-inch (3.90 mm) width specification. Pin-to-pin compatibility is maintained, allowing direct PCB footprint reuse.

Q: Which substitute part is recommended for low-power applications?

A: The ALD1701SAL demonstrates the lowest supply current consumption at 120 µA, compared to 162 µA for the TS1851IDT and 1.1 mA for the SA5230DG. However, the ALD1701SAL's reduced output current capability (1 mA) and restricted operating temperature range (0°C to 70°C) must be evaluated against application requirements.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the TS1851IDT and ALD1701SAL carry RoHS3 compliance certification. The SA5230DG, being an obsolete product, does not carry RoHS certification status in the provided specifications.

Q: What is the impact of the reduced maximum supply voltage in the TS1851IDT?

A: The TS1851IDT maximum supply voltage of 6 V restricts its use to applications operating within this voltage envelope. If your circuit design requires supply voltages between 6 V and 15 V, the TS1851IDT cannot be used as a direct substitute. Application circuit voltage requirements must be verified before selection.

Q: Can the ALD1701SAL operate in the full temperature range of the SA5230DG?

A: No. The ALD1701SAL operating temperature range is 0°C to 70°C, which does not encompass the SA5230DG specification of -40°C to 85°C. Applications requiring operation below 0°C or above 70°C cannot use the ALD1701SAL.