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TL072SG-13 Equivalent & Substitute Parts
Part Overview
The TL072SG-13 is a J-FET input operational amplifier manufactured by Diodes Incorporated, configured as a dual-channel (2 circuit) device in an 8-SOIC surface mount package. This component is classified as obsolete, indicating discontinued production and limited availability. The TL072SG-13 serves applications requiring low input bias current and low input offset voltage characteristics typical of J-FET amplifier designs. Due to its obsolete status, equivalent and substitute parts are necessary for ongoing design support, production continuity, and long-term component sourcing strategies.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | J-FET | — |
| Number of Circuits | 2 | — |
| Slew Rate | 13 | V/µs |
| Gain Bandwidth Product | 3 | MHz |
| Current - Input Bias | 65 | pA |
| Voltage - Input Offset | 3 | mV |
| Current - Supply | 1.4 (x2 Channels) | mA |
| Current - Output / Channel | 40 | mA |
| Voltage - Supply Span (Min) | 10 | V |
| Voltage - Supply Span (Max) | 30 | V |
| Operating Temperature | -40 to 85 | °C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the TL072SG-13 are categorized based on amplifier topology, circuit count, and electrical parameter compatibility. The primary substitution criteria are:
J-FET Amplifier Direct Substitutes: Parts maintaining J-FET input architecture with dual-channel configuration and compatible electrical specifications (slew rate, gain bandwidth product, input bias current, input offset voltage, supply voltage range, and output current capability).
General Purpose Amplifier Alternatives: Parts with general purpose amplifier topology that provide functional equivalence through compatible electrical parameters, though with different input bias current and offset voltage characteristics. These substitutes maintain dual-channel configuration and 8-SOIC packaging.
Critical Compatibility Parameters:
- Number of Circuits: 2 (dual-channel requirement)
- Package / Case: 8-SOIC (0.154", 3.90mm Width) or compatible 8-pin surface mount
- Voltage - Supply Span: Minimum 10V to 30V maximum (or broader range)
- Operating Temperature: -40°C to 85°C minimum coverage
- Mounting Type: Surface Mount
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Slew Rate (V/µs) | GBW (MHz) | Input Bias (pA/nA) | Input Offset (mV/µV) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|
| TL072SG-13 | Diodes Incorporated | J-FET | 13 | 3 | 65 pA | 3 mV | 10 | 30 | -40 to 85 | Obsolete |
| TL072ID | STMicroelectronics | J-FET | 16 | 3 | 20 pA | 3 mV | 6 | 36 | -40 to 125 | Obsolete |
| TL072IDR | Texas Instruments | J-FET | 13 | 5.25 | 65 pA | 3 mV | 10 | 30 | -40 to 85 | Active |
| TL072IDRE4 | Texas Instruments | J-FET | 13 | 5.25 | 65 pA | 3 mV | 10 | 30 | -40 to 85 | Obsolete |
| TL072ACDR | Texas Instruments | J-FET | 13 | 5.25 | 65 pA | 3 mV | 10 | 30 | 0 to 70 | Active |
| BA4558F-E2 | Rohm Semiconductor | General Purpose | 1.2 | 2 | 60 nA | 500 µV | 8 | 30 | -40 to 85 | Active |
| BA4558RF-E2 | Rohm Semiconductor | General Purpose | 1 | 2 | 60 nA | 500 µV | 8 | 30 | -40 to 105 | Active |
| MC33072DR2G | onsemi | General Purpose | 13 | 4.5 | 100 nA | 1 mV | 3 | 44 | -40 to 85 | Active |
| MC4558IDT | STMicroelectronics | General Purpose | 2.2 | 5.5 | 50 nA | 1 mV | 4 | 40 | -40 to 105 | Active |
| RC4558DR | Texas Instruments | General Purpose | 1.7 | 3 | 150 nA | 500 µV | 10 | 30 | 0 to 70 | Active |
| RC4558DRG3 | Texas Instruments | General Purpose | 1.7 | 3 | 150 nA | 500 µV | 10 | 30 | 0 to 70 | Last Time Buy |
Engineering Selection Recommendations
Primary Substitutes (J-FET Topology):
The TL072IDR and TL072ACDR from Texas Instruments provide the closest functional equivalence to the TL072SG-13. Both maintain J-FET input architecture, dual-channel configuration, identical input bias current (65 pA), input offset voltage (3 mV), slew rate (13 V/µs), and supply voltage range (10V to 30V). The TL072IDR is classified as Active product status with 35,200 units in stock, providing superior long-term availability compared to the obsolete TL072SG-13. The TL072ACDR is also Active status with 47,600 units available; however, its operating temperature range is restricted to 0°C to 70°C, which may not satisfy applications requiring full -40°C to 85°C coverage.
The TL072ID from STMicroelectronics offers improved electrical performance with lower input bias current (20 pA) and higher slew rate (16 V/µs), with extended supply voltage range (6V to 36V) and operating temperature range (-40°C to 125°C). Despite obsolete status, 1,458 units are in stock. This part is qualified to AEC-Q100 automotive standards.
Secondary Substitutes (General Purpose Topology):
The MC33072DR2G from onsemi provides active product status with 15,800 units in stock. This general purpose amplifier maintains the 13 V/µs slew rate of the original part, offers higher gain bandwidth product (4.5 MHz), and supports extended supply voltage range (3V to 44V). Input bias current is higher at 100 nA and input offset voltage is 1 mV, representing trade-offs in precision characteristics.
The MC4558IDT from STMicroelectronics is active status with 119,399 units in stock, providing the highest inventory availability. This general purpose amplifier offers 5.5 MHz gain bandwidth product and extended operating temperature range (-40°C to 105°C), with broader supply voltage range (4V to 40V). Input bias current is 50 nA and input offset voltage is 1 mV.
The RC4558DR and RC4558DRG3 from Texas Instruments maintain the 3 MHz gain bandwidth product and 10V to 30V supply voltage range of the original part. Both are general purpose amplifiers with 1.7 V/µs slew rate. RC4558DR is active status with 105,400 units in stock. RC4558DRG3 is last time buy status with 3,700 units. Both are restricted to 0°C to 70°C operating temperature range.
The BA4558F-E2 and BA4558RF-E2 from Rohm Semiconductor are active status general purpose amplifiers with high inventory availability (165,200 and 35,200 units respectively). These parts support -40°C to 85°C and -40°C to 105°C operating ranges respectively. Slew rate is significantly lower (1.2 V/µs and 1 V/µs), and gain bandwidth product is 2 MHz, representing reduced performance in dynamic response characteristics.
Compliance and Certification:
All listed substitute parts maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity rating, and REACH unaffected status, matching the regulatory profile of the TL072SG-13. The TL072ID carries AEC-Q100 automotive qualification, providing additional qualification for automotive applications.
Frequently Asked Questions (FAQ)
Q: Can the TL072IDR directly replace the TL072SG-13 in all applications?
A: The TL072IDR provides direct functional equivalence for applications operating within the -40°C to 85°C temperature range and 10V to 30V supply voltage range. Both parts share identical J-FET input architecture, input bias current (65 pA), input offset voltage (3 mV), slew rate (13 V/µs), and dual-channel configuration in 8-SOIC packaging. The TL072IDR offers higher gain bandwidth product (5.25 MHz versus 3 MHz), which may improve frequency response in some circuit topologies. Active product status and high inventory availability (35,200 units) make this the recommended primary substitute.
Q: What are the key differences between J-FET and general purpose amplifier substitutes?
A: J-FET input amplifiers (TL072 variants) feature extremely low input bias current (20-65 pA range) and are optimized for high-impedance signal sources. General purpose amplifiers (MC4558, RC4558, BA4558 variants) have higher input bias current (50-150 nA range) but often provide broader supply voltage ranges and extended operating temperature coverage. Selection depends on whether the application requires the precision input characteristics of J-FET topology or can tolerate higher input bias current in exchange for other performance benefits.
Q: Are the 8-SOIC packages from different manufacturers pin-compatible?
A: All substitute parts listed use 8-SOIC (0.154", 3.90mm Width) surface mount packaging, which is mechanically and electrically compatible with the TL072SG-13. The BA4558 variants use 8-SOP packaging with slightly different width (0.173", 4.40mm), which maintains pin compatibility but has different mechanical footprint dimensions. Verify PCB layout compatibility before substitution if using BA4558 variants.
Q: Which substitute offers the best long-term availability?
A: The MC4558IDT from STMicroelectronics provides the highest inventory availability with 119,399 units in stock and active product status. The TL072ACDR from Texas Instruments offers 47,600 units in active status. For J-FET topology specifically, the TL072IDR provides 35,200 units in active status. All three parts support ROHS3 compliance and MSL 1 moisture sensitivity rating.
Q: Can I use a general purpose amplifier substitute in a precision measurement application?
A: General purpose amplifier substitutes have higher input bias current and input offset voltage compared to the J-FET TL072SG-13. For precision measurement applications requiring low input bias current and low offset voltage, J-FET topology substitutes (TL072IDR, TL072ACDR, or TL072ID) are required. General purpose substitutes are suitable for audio, signal conditioning, and non-precision applications where input bias current and offset voltage are not critical parameters.
Q: What is the operating temperature impact when selecting between substitute parts?
A: The TL072SG-13 operates from -40°C to 85°C. The TL072IDR and MC33072DR2G maintain this range. The TL072ID extends to -40°C to 125°C, providing broader low-temperature coverage. The BA4558RF-E2 and MC4558IDT extend to -40°C to 105°C. The TL072ACDR, RC4558DR, and RC4558DRG3 are restricted to 0°C to 70°C, which may not satisfy applications requiring full -40°C coverage. Verify application temperature requirements before selecting a substitute with restricted operating range.
Q: Are there supply voltage range considerations for substitution?
A: The TL072SG-13 requires 10V to 30V supply voltage. Most J-FET substitutes (TL072IDR, TL072ACDR) maintain this range. The TL072ID extends to 6V to 36V, providing broader flexibility. General purpose substitutes offer extended ranges: MC33072DR2G (3V to 44V), MC4558IDT (4V to 40V), and BA4558 variants (8V to 30V). Applications with lower supply voltages (below 10V) require general purpose substitutes with extended lower voltage limits.
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