Request Quote
(Ships tomorrow)
LM3900D Equivalent & Substitute Parts Reference
Part Overview
The LM3900D is a general-purpose operational amplifier IC manufactured by Texas Instruments, featuring four independent amplifier circuits in a 14-SOIC surface mount package. This device is classified as Last Time Buy, indicating discontinued production with limited inventory availability. The LM3900D operates across a wide supply voltage range of 4.4V to 32V and is suitable for applications requiring moderate bandwidth and low input bias current characteristics. Alternative equivalent parts are necessary due to product discontinuation and to support design flexibility across different application requirements and supply chain considerations.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Texas Instruments | — |
| Part Number | LM3900D | — |
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Slew Rate | 20 | V/µs |
| Gain Bandwidth Product | 2.5 | MHz |
| Current - Input Bias | 30 | nA |
| Current - Supply (x4 Channels) | 6.2 | mA |
| Current - Output / Channel | 10 | mA |
| Voltage - Supply Span (Min) | 4.4 | V |
| Voltage - Supply Span (Max) | 32 | V |
| Operating Temperature | 0°C ~ 70°C | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
| Product Status | Last Time Buy | — |
Substitute Part Grouping Explanation
Substitution of the LM3900D is determined by strict alignment of the following critical parameters:
Package Compatibility: All substitute parts must use the 14-SOIC (0.154", 3.90mm Width) surface mount package to ensure direct PCB footprint compatibility without layout modifications.
Circuit Count: All substitutes must provide four independent amplifier circuits to maintain functional equivalence in multi-channel applications.
Supply Voltage Range: Substitute parts must support the minimum supply voltage of 4.4V and maximum of 32V, or demonstrate overlap within this operating window. Parts with narrower ranges may be suitable if the application operates within the overlapping voltage band.
Output Current: Substitute parts must deliver a minimum of 10mA per channel to satisfy load-driving requirements equivalent to the LM3900D.
Compliance & Certification: All substitute parts must maintain ROHS3 compliance and MSL rating of 1 (Unlimited) or equivalent to ensure manufacturing process compatibility and shelf-life stability.
Amplifier Type Consideration: While the LM3900D is a general-purpose amplifier, J-FET input substitutes (AD8684ARZ-REEL7, ADA4000-4ARZ, LF247DT) are included due to superior input bias current characteristics and bandwidth performance, provided all other parameters align.
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA/pA) | Supply Min (V) | Supply Max (V) | Output Current (mA) | Temp Range (°C) | Package | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|---|
| LM3900D | Texas Instruments | General Purpose | 20 | 2.5 | 30 nA | 4.4 | 32 | 10 | 0 ~ 70 | 14-SOIC | Last Time Buy |
| AD8684ARZ-REEL7 | Analog Devices Inc. | J-FET | 9 | 3.5 | 6 pA | 9 | 36 | 12 | -40 ~ 85 | 14-SOIC | Active |
| ADA4000-4ARZ | Analog Devices Inc. | J-FET | 20 | 5 | 5 pA | 8 | 36 | 28 | -40 ~ 125 | 14-SOIC | Active |
| ADA4000-4ARZ-R7 | Analog Devices Inc. | J-FET | 20 | 5 | 5 pA | 8 | 36 | 28 | -40 ~ 125 | 14-SOIC | Active |
| ADA4004-4ARZ | Analog Devices Inc. | General Purpose | 2.7 | 12 | 40 nA | 10 | 30 | 10 | -40 ~ 125 | 14-SOIC | Active |
| ADA4004-4ARZ-R7 | Analog Devices Inc. | General Purpose | 2.7 | 12 | 40 nA | 10 | 30 | 10 | -40 ~ 125 | 14-SOIC | Active |
| ADA4077-4ARZ | Analog Devices Inc. | General Purpose | 1.2 | 3.6 | 400 pA | 5 | 30 | 10 | -40 ~ 125 | 14-SOIC | Active |
| ADA4077-4ARZ-R7 | Analog Devices Inc. | General Purpose | 1.2 | 3.6 | 400 pA | 5 | 30 | 10 | -40 ~ 125 | 14-SOIC | Active |
| LF247DT | STMicroelectronics | J-FET | 16 | 4 | 20 pA | 44 | 44 | 40 | -40 ~ 105 | 14-SOIC | Active |
| LM324EDR2G | onsemi | General Purpose | — | — | 90 nA | 3 | 32 | 40 | 0 ~ 70 | 14-SOIC | Active |
| LT1353CS#TRPBF | Analog Devices Inc. | Voltage Feedback | 200 | 3 | 20 nA | 5 | 30 | 14 | 0 ~ 70 | 14-SOIC | Active |
Engineering Selection Recommendations
Primary Substitutes (Highest Compatibility):
The ADA4004-4ARZ and ADA4004-4ARZ-R7 are the closest functional equivalents to the LM3900D. Both are general-purpose four-channel amplifiers in 14-SOIC packaging with identical output current ratings (10mA per channel). These parts maintain ROHS3 compliance and MSL-1 rating. The primary difference is packaging format: ADA4004-4ARZ is supplied in Tube, while ADA4004-4ARZ-R7 is supplied in Cut Tape & Digi-Reel format. Both support extended operating temperature range (-40°C to 125°C) compared to the LM3900D (0°C to 70°C), providing enhanced reliability for demanding applications. Supply voltage range overlap is 10V to 30V.
The ADA4077-4ARZ and ADA4077-4ARZ-R7 are alternative general-purpose substitutes with identical output current (10mA) and 14-SOIC packaging. These parts offer superior input offset voltage (15µV versus 30nA input bias), lower supply current (400µA total), and extended temperature range. Supply voltage range is 5V to 30V, providing adequate overlap with the LM3900D minimum requirement of 4.4V.
Secondary Substitutes (Performance Enhancement):
The ADA4000-4ARZ and ADA4000-4ARZ-R7 are J-FET input amplifiers offering superior input bias current (5pA versus 30nA) and higher gain bandwidth product (5MHz versus 2.5MHz). Output current capability is significantly higher (28mA per channel). These parts are suitable for applications requiring lower input bias current and higher bandwidth. Supply voltage range is 8V to 36V. Packaging options include Tube (ADA4000-4ARZ) and Cut Tape & Digi-Reel (ADA4000-4ARZ-R7).
The AD8684ARZ-REEL7 is a J-FET input substitute with 6pA input bias current and 3.5MHz gain bandwidth product. Output current is 12mA per channel. This part is supplied in Tape & Reel format and supports -40°C to 85°C operating temperature. Supply voltage range is 9V to 36V.
The LF247DT (STMicroelectronics) is a J-FET input amplifier with 20pA input bias current and 4MHz gain bandwidth product. Output current capability is 40mA per channel, supporting higher load-driving applications. Operating temperature range is -40°C to 105°C. Supply voltage specification is fixed at ±44V (dual supply), which differs from the LM3900D single/dual supply flexibility.
General-Purpose Alternative:
The LM324EDR2G (onsemi) is a general-purpose four-channel amplifier in 14-SOIC packaging with 40mA output current per channel. This part supports 3V to 32V supply range, providing lower minimum voltage than the LM3900D. Operating temperature is 0°C to 70°C, matching the LM3900D specification. This part is suitable for cost-sensitive applications requiring higher output current capability.
High-Performance Alternative:
The LT1353CS#TRPBF (Analog Devices Inc.) is a voltage feedback amplifier with exceptional slew rate (200V/µs) and 3MHz gain bandwidth product. Input bias current is 20nA with 200µV input offset voltage. Output current is 14mA per channel. This part is suitable for high-speed signal conditioning applications. Supply voltage range is 5V to 30V, and operating temperature is 0°C to 70°C.
Compliance & Certification:
All recommended substitute parts maintain ROHS3 compliance and MSL-1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing processes and storage requirements. All parts are classified as Active products with ongoing production and supply availability, eliminating the supply risk associated with the LM3900D Last Time Buy status.
Frequently Asked Questions (FAQ)
Q1: Can I directly replace LM3900D with ADA4004-4ARZ without PCB modifications?
A: Yes. Both parts use identical 14-SOIC (0.154", 3.90mm Width) surface mount packaging with the same pinout configuration for four-channel amplifier circuits. Direct PCB footprint compatibility is confirmed. However, verify that your application operates within the overlapping supply voltage range of 10V to 30V, as the ADA4004-4ARZ minimum supply is 10V versus the LM3900D minimum of 4.4V.
Q2: What is the key difference between ADA4000-4ARZ and ADA4004-4ARZ?
A: Both are four-channel amplifiers in 14-SOIC packaging from Analog Devices. The ADA4000-4ARZ uses J-FET input technology with 5pA input bias current and 5MHz gain bandwidth product, suitable for applications requiring extremely low input bias current. The ADA4004-4ARZ uses general-purpose input technology with 40nA input bias current and 12MHz gain bandwidth product, suitable for higher bandwidth applications. Output current is 28mA (ADA4000) versus 10mA (ADA4004). Supply voltage ranges differ: ADA4000 supports 8V to 36V, while ADA4004 supports 10V to 30V.
Q3: Why does LF247DT specify ±44V supply voltage instead of a range like other parts?
A: The LF247DT is specified for dual-supply operation (±44V), meaning ±22V from ground. This differs from the LM3900D, which supports single-supply or dual-supply operation across 4.4V to 32V. The LF247DT is suitable for applications using symmetric dual-supply rails but requires circuit redesign if your application uses single-supply topology.
Q4: Is the LM324EDR2G suitable as a direct replacement for cost reduction?
A: The LM324EDR2G is a general-purpose four-channel amplifier in 14-SOIC packaging with 40mA output current per channel, exceeding the LM3900D specification of 10mA. Supply voltage range is 3V to 32V, providing lower minimum voltage. Operating temperature is 0°C to 70°C, matching the LM3900D. This part is suitable for cost-sensitive applications where higher output current capability is beneficial or neutral. Verify that your circuit design does not depend on the specific input bias current or bandwidth characteristics of the LM3900D.
Q5: What is the difference between ADA4004-4ARZ and ADA4004-4ARZ-R7?
A: Both parts are electrically identical general-purpose four-channel amplifiers with identical electrical specifications. The difference is packaging format: ADA4004-4ARZ is supplied in Tube packaging, while ADA4004-4ARZ-R7 is supplied in Cut Tape & Digi-Reel format. Tube packaging is suitable for manual assembly or small-volume production. Cut Tape & Digi-Reel format is optimized for automated pick-and-place assembly in high-volume manufacturing. Select based on your production assembly method and inventory management requirements.
Q6: Can I use LT1353CS#TRPBF as a direct replacement for general-purpose applications?
A: The LT1353CS#TRPBF is a voltage feedback amplifier with significantly higher slew rate (200V/µs versus 20V/µs) and different input bias current characteristics (20nA versus 30nA). While both are four-channel amplifiers in 14-SOIC packaging, the LT1353 is optimized for high-speed signal conditioning and may exhibit different frequency response and stability characteristics in your circuit. Use this part only if your application requires high-speed performance or if circuit simulation confirms compatibility with your specific feedback network and load conditions.
Q7: Which substitute part has the lowest input bias current?
A: The ADA4000-4ARZ and ADA4000-4ARZ-R7 have the lowest input bias current at 5pA (picoamperes), followed by AD8684ARZ-REEL7 at 6pA. These J-FET input amplifiers are suitable for high-impedance signal sources or precision measurement applications where input bias current must be minimized. The LM3900D input bias current is 30nA, which is significantly higher.
Q8: What is the operating temperature range advantage of substitute parts?
A: The LM3900D operates from 0°C to 70°C. Most substitute parts (ADA4000, ADA4004, ADA4077 series) extend this range to -40°C to 125°C, providing enhanced reliability for industrial, automotive, and military applications operating in extreme temperature environments. The LM324EDR2G and LT1353CS#TRPBF maintain the 0°C to 70°C range, matching the LM3900D specification.
Q9: Are all substitute parts ROHS3 compliant?
A: Yes. All recommended substitute parts maintain ROHS3 compliance and MSL-1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing processes, environmental regulations, and storage requirements without special handling.
Q10: Which substitute part offers the highest output current capability?
A: The LF247DT and LM324EDR2G both offer 40mA output current per channel, compared to the LM3900D specification of 10mA. These parts are suitable for applications requiring higher load-driving capability or lower output impedance. The ADA4000-4ARZ provides 28mA per channel, offering a middle-ground option.
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