LM833DGKT Equivalent & Substitute Parts

Part Overview

The LM833DGKT is a dual-channel audio amplifier integrated circuit manufactured by Texas Instruments in 8-VSSOP surface mount packaging. This device is classified as Last Time Buy, indicating discontinued production with limited inventory availability. The LM833DGKT operates across a wide supply voltage range of 10V to 36V and is designed for audio frequency applications requiring low noise and stable gain characteristics. Alternative equivalent parts are necessary due to inventory constraints and product lifecycle status.

Substiute Parts

LM833DGKT

Texas InstrumentsIn Stock: 3629LM833DGKT Datasheet

Current PartRFQ

LM833DGKR

Texas InstrumentsIn Stock: 1546LM833DGKR Datasheet

MFR RecommendedRFQ

LM833MM/NOPB

Texas InstrumentsIn Stock: 2534LM833MM/NOPB Datasheet

MFR RecommendedRFQ

LM833MMX/NOPB

Texas InstrumentsIn Stock: 1212LM833MMX/NOPB Datasheet

MFR RecommendedRFQ

BA3472RFVM-TR

Rohm SemiconductorIn Stock: 4155BA3472RFVM-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM833DGKT is determined by the following critical parameters: dual-channel configuration, audio amplifier classification, 8-pin surface mount package compatibility, slew rate performance, gain bandwidth product, supply voltage operating range, and thermal operating limits.

Group 1: Direct Equivalents (Texas Instruments LM833 Series)

Parts LM833DGKR, LM833MM/NOPB, and LM833MMX/NOPB share the LM833 base product number and maintain identical or near-identical electrical specifications with the LM833DGKT. These parts are functionally interchangeable within the same supply voltage and temperature operating envelope.

Group 2: Cross-Manufacturer Alternative (Rohm Semiconductor)

Part BA3472RFVM-TR represents a cross-manufacturer substitute from Rohm Semiconductor. While maintaining dual-channel configuration and 8-pin surface mount packaging, this part operates as a general-purpose amplifier rather than audio-specific, with different electrical performance characteristics including lower gain bandwidth product (4 MHz versus 16 MHz) and different supply voltage minimum specification (3V versus 10V).

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes: LM833DGKR, LM833MM/NOPB, LM833MMX/NOPB

These Texas Instruments parts maintain Active product status and are recommended as primary alternatives to the Last Time Buy LM833DGKT. All three parts are ROHS3 compliant and carry MSL Level 1 rating. LM833DGKR provides the closest electrical match with identical slew rate (7V/µs) and gain bandwidth product (16 MHz). LM833MM/NOPB and LM833MMX/NOPB operate with slightly reduced gain bandwidth product (15 MHz) and increased supply current (5mA versus 2.05mA) but maintain full compatibility within the 10V to 36V supply range and -40°C to 85°C operating temperature envelope.

Secondary Substitute: BA3472RFVM-TR

The Rohm Semiconductor BA3472RFVM-TR is classified as a general-purpose amplifier rather than audio-specific. This part is suitable only for applications where the lower gain bandwidth product (4 MHz) and reduced input offset voltage specification (1.5mV versus 150µV) are acceptable. The BA3472RFVM-TR operates across a wider supply voltage minimum (3V) and extended temperature range (-40°C to 105°C), making it applicable to different system requirements. This part is not recommended for direct replacement in audio-critical applications requiring the 16 MHz bandwidth of the original LM833DGKT.

Frequently Asked Questions (FAQ)

Q: Can LM833DGKR be used as a direct replacement for LM833DGKT?

A: Yes. LM833DGKR maintains identical electrical specifications including 7V/µs slew rate, 16 MHz gain bandwidth product, 300 nA input bias current, and 150 µV input offset voltage. Both parts operate across 10V to 36V supply range and -40°C to 85°C temperature range. The primary difference is product status: LM833DGKR is Active while LM833DGKT is Last Time Buy.

Q: What are the differences between LM833MM/NOPB and LM833MMX/NOPB?

A: Both parts share identical electrical specifications and operating parameters. The difference lies in packaging designation: LM833MM/NOPB uses standard tape and reel packaging, while LM833MMX/NOPB uses extended tape and reel packaging. Electrical performance and pin configuration are equivalent.

Q: Why does LM833MM/NOPB show different supply voltage specifications?

A: LM833MM/NOPB specifies a fixed 30V supply span (minimum 30V, maximum 30V) compared to the LM833DGKT range of 10V to 36V. This indicates the part is rated for operation at 30V nominal supply. Applications requiring operation below 30V or above 30V should use LM833DGKR instead.

Q: Is BA3472RFVM-TR suitable for audio applications?

A: BA3472RFVM-TR is classified as a general-purpose amplifier, not audio-specific. The 4 MHz gain bandwidth product is significantly lower than the LM833DGKT (16 MHz). This part is suitable only for applications where reduced bandwidth is acceptable. Audio applications requiring full 16 MHz bandwidth should use LM833DGKR, LM833MM/NOPB, or LM833MMX/NOPB.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (LM833DGKR, LM833MM/NOPB, LM833MMX/NOPB, and BA3472RFVM-TR) are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating.

Q: What is the package compatibility between these parts?

A: LM833DGKT, LM833DGKR, LM833MM/NOPB, and LM833MMX/NOPB all use 8-TSSOP and 8-MSOP packages with 0.118" width (3.00mm). BA3472RFVM-TR uses 8-VSSOP and 8-MSOP packages with 0.110" width (2.80mm). Pin-to-pin compatibility exists for all parts in 8-pin surface mount configuration.

Q: Which substitute offers the lowest power consumption?

A: LM833DGKT and LM833DGKR both specify 2.05mA supply current (x2 channels), the lowest among all listed parts. LM833MM/NOPB, LM833MMX/NOPB, and BA3472RFVM-TR consume 5mA, 5mA, and 4mA respectively.