Request Quote
(Ships tomorrow)
LM324ADE4 Equivalent & Substitute Parts
Part Overview
The LM324ADE4 is a general-purpose operational amplifier integrated circuit manufactured by Texas Instruments, configured as a 4-circuit device in 14-SOIC surface mount packaging. This device is classified as Last Time Buy, indicating discontinued production with limited inventory availability. The LM324ADE4 operates across a wide supply voltage range of 3V to 30V and is suitable for applications requiring low-power, general-purpose amplification in industrial and consumer electronics.
Substitute parts are necessary due to the Last Time Buy status of the LM324ADE4. Alternative equivalent devices provide continued design support, extended product lifecycle, and improved inventory availability while maintaining functional and electrical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Voltage - Supply Span (Min) | 3 | V |
| Voltage - Supply Span (Max) | 30 | V |
| Operating Temperature | 0°C ~ 70°C | — |
| Slew Rate | 0.5 | V/µs |
| Gain Bandwidth Product | 1.3 | MHz |
| Current - Input Bias | 15 | nA |
| Voltage - Input Offset | 2 | mV |
| Current - Output / Channel | 30 | mA |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the LM324ADE4 is determined by strict adherence to the following electrical and mechanical parameters:
Primary Substitution Criteria:
- Amplifier Type: General Purpose
- Number of Circuits: 4
- Package / Case: 14-SOIC (0.154", 3.90mm Width)
- Mounting Type: Surface Mount
- Voltage - Supply Span (Min): 3V minimum
- Voltage - Supply Span (Max): 30V or greater
- Operating Temperature: 0°C to 70°C or extended range
- Current - Output / Channel: 30 mA or greater
Secondary Compatibility Parameters:
- Slew Rate: 0.5 V/µs or greater
- Gain Bandwidth Product: 1.3 MHz or greater
- Current - Input Bias: 15 nA or lower
- Voltage - Input Offset: 2 mV or lower
- RoHS3 Compliance
- MSL Level 1
Substitute parts are grouped into two categories:
Category A - Direct Functional Equivalents (Active Status): Parts that meet or exceed all primary criteria with active product status and full manufacturer support. These include LM324AD, LM324ADR, LM324AM/NOPB, LM324AMX/NOPB, LM324M/NOPB, and LM324MX/NOPB.
Category B - Extended Performance Alternatives: Parts that meet primary criteria but with modified secondary parameters or alternative product status. These include LP324M/NOPB, LP324MX/NOPB, BA10324AF-E2, and LM2902DR.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA) | Supply Min (V) | Supply Max (V) | Output Current (mA) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|---|
| LM324ADE4 | Texas Instruments | Last Time Buy | 0.5 | 1.3 | 15 | 3 | 30 | 30 | 0 ~ 70 | 14-SOIC |
| LM324AD | STMicroelectronics | Active | 0.4 | 1.3 | 20 | 3 | 30 | 30 | 0 ~ 70 | 14-SOIC |
| LM324ADR | UMW | Active | — | — | 20 | — | 30 | 30 | -30 ~ 85 | 14-SOIC |
| LM324AM/NOPB | Texas Instruments | Active | — | 1.0 | 45 | 3 | 32 | 40 | 0 ~ 70 | 14-SOIC |
| LM324AMX/NOPB | Texas Instruments | Active | — | 1.0 | 45 | 3 | 32 | 40 | 0 ~ 70 | 14-SOIC |
| LM324M/NOPB | Texas Instruments | Active | — | 1.0 | 45 | 3 | 32 | 40 | 0 ~ 70 | 14-SOIC |
| LM324MX/NOPB | Texas Instruments | Active | — | 1.0 | 45 | 3 | 32 | 40 | 0 ~ 70 | 14-SOIC |
| LP324M/NOPB | Texas Instruments | Active | 0.05 | 0.1 | 2 | 3 | 32 | 10 | 0 ~ 70 | 14-SOIC |
| LP324MX/NOPB | Texas Instruments | Active | 0.05 | 0.1 | 2 | 3 | 32 | 10 | 0 ~ 70 | 14-SOIC |
| BA10324AF-E2 | Rohm Semiconductor | Active | 0.2 | 0.5 | 20 | 3 | 32 | 35 | -40 ~ 85 | 14-SOIC |
| LM2902DR | Rohm Semiconductor | Obsolete | 0.3 | 1.2 | 20 | 3 | 32 | 30 | -40 ~ 125 | 14-SOIC |
Engineering Selection Recommendations
For Direct Replacement (Recommended Primary Choices):
The LM324AD (STMicroelectronics) and LM324ADR (UMW) are the primary recommended substitutes. Both devices maintain the 4-circuit general-purpose amplifier configuration in 14-SOIC packaging with active product status. The LM324AD provides equivalent electrical performance with 1.3 MHz gain bandwidth product and 30 mA output current per channel. The LM324ADR extends the operating temperature range to -30°C to 85°C, providing enhanced thermal performance for industrial applications.
For Extended Supply Voltage Applications:
The LM324AM/NOPB, LM324AMX/NOPB, LM324M/NOPB, and LM324MX/NOPB variants support supply voltages up to 32V (compared to 30V maximum for the LM324ADE4) and provide 40 mA output current per channel. These devices are manufactured by Texas Instruments under the LinCMOS™ series designation and maintain active product status with full manufacturer support.
For Low-Power Applications:
The LP324M/NOPB and LP324MX/NOPB are suitable for applications requiring minimal supply current consumption (85 µA total supply current versus 1.4 mA for the LM324ADE4). These devices sacrifice bandwidth (100 kHz versus 1.3 MHz) and output current capability (10 mA versus 30 mA per channel) in exchange for ultra-low power operation.
For Extended Temperature Range:
The BA10324AF-E2 (Rohm Semiconductor) and LM2902DR support operating temperatures from -40°C to 85°C or -40°C to 125°C respectively, exceeding the 0°C to 70°C range of the LM324ADE4. The LM2902DR is classified as Obsolete and should be avoided for new designs despite extended temperature capability.
Compliance and Certification:
All recommended substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited moisture sensitivity), and EAR99 export classification consistent with the LM324ADE4. All parts are REACH Unaffected.
Frequently Asked Questions (FAQ)
Q: Can the LM324AD directly replace the LM324ADE4 in existing designs?
A: Yes. The LM324AD maintains identical 14-SOIC packaging, 4-circuit configuration, and equivalent electrical specifications including 1.3 MHz gain bandwidth product and 30 mA output current per channel. Both devices support 3V to 30V supply operation and 0°C to 70°C temperature range. Pin-for-pin compatibility is confirmed.
Q: What is the difference between LM324AMX/NOPB and LM324ADE4?
A: The LM324AMX/NOPB differs in three key areas: (1) Supply voltage maximum is 32V versus 30V, (2) Output current per channel is 40 mA versus 30 mA, and (3) Gain bandwidth product is 1.0 MHz versus 1.3 MHz. Input bias current is higher at 45 nA versus 15 nA. The LM324AMX/NOPB is packaged in Cut Tape & Digi-Reel format versus Tube packaging for the LM324ADE4.
Q: Why is the LM2902DR listed as Obsolete?
A: The LM2902DR is classified as Obsolete by the manufacturer, indicating discontinued production and no ongoing manufacturer support. While the device remains in inventory (90,223 pcs), new designs should not incorporate this part. The LM324AD or LM324ADR are recommended alternatives.
Q: Can LP324M/NOPB be used as a direct substitute?
A: No. The LP324M/NOPB is not a direct substitute due to significantly reduced performance specifications. Gain bandwidth product is 100 kHz versus 1.3 MHz, output current is 10 mA versus 30 mA per channel, and supply current is 85 µA versus 1.4 mA. The LP324M/NOPB is suitable only for applications where ultra-low power consumption is the primary design requirement and reduced bandwidth is acceptable.
Q: What packaging formats are available for LM324 equivalents?
A: Substitute parts are available in three packaging formats: (1) Tube packaging (LM324AD, LM324AM/NOPB, LM324M/NOPB, LP324M/NOPB), (2) Cut Tape & Digi-Reel format (LM324ADR, LM324AMX/NOPB, LM324MX/NOPB, BA10324AF-E2), and (3) Tape & Reel format (LP324MX/NOPB). All maintain identical 14-SOIC case dimensions of 0.154" width (3.90mm).
Q: Is the BA10324AF-E2 suitable for industrial temperature applications?
A: Yes. The BA10324AF-E2 supports -40°C to 85°C operating temperature range, exceeding the 0°C to 70°C range of the LM324ADE4. This device is manufactured by Rohm Semiconductor and maintains 14-SOIC packaging with 4-circuit general-purpose amplifier configuration. However, slew rate (0.2 V/µs) and gain bandwidth product (500 kHz) are reduced compared to the LM324ADE4.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status consistent with the LM324ADE4. All parts carry EAR99 export classification.
Q: What is the inventory status of recommended substitutes?
A: LM324AD (STMicroelectronics): 2,037 pcs. LM324ADR (UMW): 181,800 pcs. LM324AM/NOPB (Texas Instruments): 105,684 pcs. LM324AMX/NOPB (Texas Instruments): 36,756 pcs. LM324M/NOPB (Texas Instruments): 1,922 pcs. LM324MX/NOPB (Texas Instruments): 50,513 pcs. LP324M/NOPB (Texas Instruments): 2,000 pcs. LP324MX/NOPB (Texas Instruments): 23,900 pcs. BA10324AF-E2 (Rohm Semiconductor): 67,700 pcs.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts