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MAX4329ESD Equivalent & Substitute Parts
Part Overview
The MAX4329ESD is a general purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, configured as a quad-channel (4 circuit) rail-to-rail amplifier in a 14-SOIC surface mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.
The MAX4329ESD operates across a supply voltage range of 2.4V to 6.5V with a slew rate of 2V/µs and gain bandwidth product of 5 MHz. It is designed for general purpose amplification applications requiring rail-to-rail output capability in compact surface mount form factor.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | MAX4329ESD | — |
| Manufacturer | Analog Devices Inc./Maxim Integrated | — |
| Product Status | Obsolete | — |
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Slew Rate | 2 | V/µs |
| Gain Bandwidth Product | 5 | MHz |
| Current - Input Bias | 50 | nA |
| Voltage - Input Offset | 1.2 | mV |
| Current - Supply (x4 Channels) | 725 | µA |
| Current - Output / Channel | 50 | mA |
| Voltage - Supply Span (Min) | 2.4 | V |
| Voltage - Supply Span (Max) | 6.5 | V |
| Operating Temperature | -40 to 85 | °C |
| RoHS Status | RoHS non-compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the MAX4329ESD is determined by strict adherence to the following electrical and mechanical parameters:
Primary Substitution Criteria:
- Number of Circuits: 4 (quad-channel configuration)
- Output Type: Rail-to-Rail
- Package / Case: 14-SOIC (0.154", 3.90mm Width)
- Mounting Type: Surface Mount
- Amplifier Type: General Purpose (preferred) or functionally equivalent types
Secondary Compatibility Parameters:
- Slew Rate: 2V/µs or greater
- Gain Bandwidth Product: 5 MHz or greater
- Current - Output / Channel: 50 mA or greater
- Voltage - Supply Span: Must encompass or exceed 2.4V to 6.5V range
- Operating Temperature: Must support -40°C to 85°C minimum
The substitute parts listed below meet the primary substitution criteria and maintain functional compatibility within the specified electrical operating parameters.
Parameter Comparison
| Parameter | MAX4329ESD | MCP6284-E/SL | OPA4317ID | OPA4317IDR | OPA4343UA | TLV2474CDR | TLV2774CD | TS924AIDT |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices | Microchip | Texas Instruments | Texas Instruments | Burr Brown | Texas Instruments | Texas Instruments | STMicroelectronics |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Last Time Buy | Active |
| Number of Circuits | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Output Type | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail |
| Package / Case | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC |
| Slew Rate (V/µs) | 2 | 2.5 | 0.15 | 0.15 | 6 | 1.5 | 10.5 | 1.3 |
| Gain Bandwidth Product (MHz) | 5 | 5 | 0.3 | 0.3 | 5.5 | 2.8 | 5.1 | 4 |
| Current - Input Bias (nA/pA) | 50 nA | 1 pA | 155 pA | 155 pA | 0.2 pA | 2.5 pA | 2 pA | 15 nA |
| Voltage - Input Offset (mV/µV) | 1.2 mV | 3 mV | 20 µV | 20 µV | 2 mV | 250 µV | 700 µV | 900 µV |
| Current - Supply (µA) | 725 | 450 | 21 | 21 | 850 | 600 | 1000 | 1000 |
| Current - Output / Channel (mA) | 50 | 25 | 5 | 5 | 50 | 35 | 50 | 80 |
| Voltage - Supply Span Min (V) | 2.4 | 2.2 | 1.8 | 1.8 | 2.5 | 2.7 | 2.5 | 2.7 |
| Voltage - Supply Span Max (V) | 6.5 | 5.5 | 5.5 | 5.5 | 5.5 | 6 | 5.5 | 12 |
| Operating Temperature (°C) | -40 to 85 | -40 to 125 | -40 to 150 | -40 to 150 | -40 to 85 | 0 to 70 | 0 to 70 | -40 to 125 |
| RoHS Status | Non-compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | Not specified | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Recommendation: MCP6284-E/SL (Microchip Technology)
The MCP6284-E/SL is the manufacturer-recommended substitute for the MAX4329ESD. This device maintains electrical compatibility across all critical parameters: 4-circuit rail-to-rail configuration, 14-SOIC package, slew rate of 2.5V/µs, and gain bandwidth product of 5 MHz. The MCP6284-E/SL is in active production status with ROHS3 compliance, addressing the obsolescence of the MAX4329ESD. Supply voltage range of 2.2V to 5.5V encompasses the MAX4329ESD operating window. Current supply consumption is reduced to 450µA, providing improved power efficiency.
Secondary Recommendation: OPA4343UA (Burr Brown)
The OPA4343UA provides equivalent electrical performance with enhanced slew rate of 6V/µs and gain bandwidth product of 5.5 MHz. This CMOS amplifier maintains 4-circuit rail-to-rail configuration in 14-SOIC package with 50mA output current per channel, matching the MAX4329ESD. Operating temperature range of -40°C to 85°C aligns with the original specification. This device is suitable for applications requiring higher slew rate performance.
Alternative for Extended Temperature Range: OPA4317ID or OPA4317IDR (Texas Instruments)
The OPA4317 series (available in tube or cut tape packaging) offers zero-drift amplifier technology with extended operating temperature to 150°C. While slew rate (0.15V/µs) and gain bandwidth product (300 kHz) are reduced, this device is appropriate for precision applications requiring minimal input offset voltage (20µV) and extremely low input bias current (155 pA). Supply voltage range of 1.8V to 5.5V provides broader compatibility. Product status is active with ROHS3 compliance.
Alternative for Automotive Applications: TS924AIDT (STMicroelectronics)
The TS924AIDT is qualified to AEC-Q100 automotive standard with extended supply voltage range to 12V. This general purpose amplifier maintains 4-circuit rail-to-rail configuration in 14-SOIC package with 80mA output current per channel. Operating temperature range extends to 125°C. This device is suitable for automotive and industrial applications requiring extended voltage and temperature specifications.
Not Recommended: TLV2474CDR and TLV2774CD
The TLV2474CDR and TLV2774CD operate within restricted temperature range (0°C to 70°C), which does not meet the MAX4329ESD specification of -40°C to 85°C. These devices are not suitable for applications requiring full industrial temperature range operation.
Frequently Asked Questions (FAQ)
Q: Can the MCP6284-E/SL directly replace the MAX4329ESD without circuit modification?
A: The MCP6284-E/SL is pin-compatible and functionally equivalent within the specified electrical parameters. Both devices feature 4-circuit rail-to-rail amplifiers in 14-SOIC package with matching pinout. However, the reduced maximum supply voltage (5.5V vs. 6.5V) must be verified against your circuit design. If your application operates above 5.5V, alternative substitutes must be selected.
Q: What is the primary difference between the OPA4317 series and the MAX4329ESD?
A: The OPA4317 series employs zero-drift amplifier architecture, resulting in significantly lower input offset voltage (20µV vs. 1.2mV) and input bias current (155 pA vs. 50 nA). However, this architecture trades bandwidth performance: slew rate is 0.15V/µs and gain bandwidth product is 300 kHz, substantially lower than the MAX4329ESD. The OPA4317 is appropriate for precision DC measurement and low-frequency applications, not for general purpose high-bandwidth amplification.
Q: Are all substitute parts RoHS compliant?
A: The MCP6284-E/SL, OPA4317ID, OPA4317IDR, TLV2474CDR, TLV2774CD, and TS924AIDT are all ROHS3 compliant. The MAX4329ESD is RoHS non-compliant. The OPA4343UA compliance status is not specified in the provided data. For applications requiring RoHS compliance, the MCP6284-E/SL is the recommended choice.
Q: What is the impact of reduced output current in the MCP6284-E/SL (25mA vs. 50mA)?
A: The MCP6284-E/SL provides 25mA output current per channel compared to 50mA in the MAX4329ESD. Applications requiring output currents exceeding 25mA per channel must select alternative substitutes such as OPA4343UA, TLV2774CD, or TS924AIDT, which maintain 50mA or greater output current capability.
Q: Can the TS924AIDT be used in non-automotive applications?
A: Yes. The TS924AIDT is qualified to AEC-Q100 automotive standard but is not restricted to automotive use. Its extended supply voltage range (2.7V to 12V) and operating temperature range (-40°C to 125°C) make it suitable for industrial and general purpose applications requiring broader specifications than the MAX4329ESD.
Q: What is the significance of "Last Time Buy" status for the TLV2774CD?
A: "Last Time Buy" indicates that the manufacturer has announced end-of-life for this device. While currently available in inventory (74,770 pcs), production will cease and future availability cannot be guaranteed. For new designs, the MCP6284-E/SL or OPA4343UA are recommended to ensure long-term supply continuity.
Q: Are there packaging differences between substitute parts?
A: All substitute parts are available in 14-SOIC surface mount package, maintaining mechanical compatibility with the MAX4329ESD. Packaging options vary by manufacturer: MCP6284-E/SL is supplied in tube, OPA4317ID in tube, OPA4317IDR in cut tape and digi-reel, OPA4343UA packaging not specified, TLV2474CDR in tape and reel, TLV2774CD in tube, and TS924AIDT in cut tape and digi-reel. Verify packaging availability with your supplier for production requirements.
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