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TLE2144IN Equivalent & Substitute Parts
Part Overview
The TLE2144IN is a general-purpose operational amplifier integrated circuit manufactured by Texas Instruments, featuring four independent amplifier circuits in a 14-pin DIP package. This device is classified as Active product status and is ROHS3 compliant. The TLE2144IN is designed for applications requiring rail-to-rail output capability with moderate slew rate and bandwidth characteristics. Substitute parts are identified when inventory constraints, lead time requirements, or specific application parameters necessitate alternative component selection while maintaining functional compatibility within the 14-PDIP package form factor.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | TLE2144IN | — |
| Manufacturer | Texas Instruments | — |
| Category | Linear, Amplifiers | — |
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Output Type | Rail-to-Rail | — |
| Slew Rate | 45 | V/µs |
| Gain Bandwidth Product | 5.9 | MHz |
| Current - Input Bias | 700 | nA |
| Voltage - Input Offset | 290 | µV |
| Current - Supply (x4 Channels) | 6.9 | mA |
| Current - Output / Channel | 50 | mA |
| Voltage - Supply Span (Min) | 4 | V |
| Voltage - Supply Span (Max) | 44 | V |
| Operating Temperature | -40 to 105 | °C |
| Package / Case | 14-DIP (0.300", 7.62mm) | — |
| Mounting Type | Through Hole | — |
| RoHS Status | ROHS3 Compliant | — |
| Product Status | Active | — |
Substitute Part Grouping Explanation
Substitute parts for the TLE2144IN are identified based on the following criteria:
Package Compatibility: All substitute parts must use the 14-PDIP (0.300", 7.62mm) package form factor to ensure mechanical and electrical compatibility with existing PCB layouts and socket configurations.
Circuit Count: All substitute parts contain four independent amplifier circuits, matching the quad-channel architecture of the TLE2144IN.
Amplifier Classification: Substitutes are grouped into two categories: General Purpose amplifiers (functionally closest to TLE2144IN) and J-FET input amplifiers (alternative topology with different electrical characteristics).
Electrical Parameter Ranges: Substitute parts must operate within overlapping supply voltage ranges and maintain compatibility with the application's bias current, offset voltage, and output current requirements.
Compliance Status: All substitute parts maintain ROHS3 compliance and Active product status, ensuring regulatory alignment and continued manufacturer support.
The following substitute parts meet these criteria:
- AD713JNZ (Analog Devices Inc.) — J-FET topology, 4 MHz bandwidth
- LT1058CN#PBF (Analog Devices Inc.) — J-FET topology, 5 MHz bandwidth, low supply current
- LT1179CN#PBF (Analog Devices Inc.) — General Purpose, ultra-low supply current
- LT1179IN#PBF (Analog Devices Inc.) — General Purpose, extended temperature range
- OP470GPZ (Analog Devices Inc.) — General Purpose, 6 MHz bandwidth
Parameter Comparison
| Parameter | TLE2144IN | AD713JNZ | LT1058CN#PBF | LT1179CN#PBF | LT1179IN#PBF | OP470GPZ |
|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Amplifier Type | General Purpose | J-FET | J-FET | General Purpose | General Purpose | General Purpose |
| Number of Circuits | 4 | 4 | 4 | 4 | 4 | 4 |
| Slew Rate (V/µs) | 45 | 20 | 13 | 0.04 | 0.04 | 3 |
| Gain Bandwidth Product (MHz) | 5.9 | 4 | 5 | 0.085 | 0.085 | 6 |
| Current - Input Bias (nA) | 700 | 10 | 7 | 3 | 3 | 15 |
| Voltage - Input Offset (µV) | 290 | 300 | 250 | 100 | 100 | 400 |
| Current - Supply (mA) | 6.9 | 10 | 1.7 | 0.017 | 0.017 | 9 |
| Current - Output / Channel (mA) | 50 | 25 | — | — | — | — |
| Voltage - Supply Span Min (V) | 4 | 9 | 20 | 5 | 5 | 9 |
| Voltage - Supply Span Max (V) | 44 | 36 | 36 | 30 | 30 | 36 |
| Operating Temperature (°C) | -40 to 105 | 0 to 70 | 0 to 70 | 0 to 70 | -40 to 85 | -40 to 85 |
| Package / Case | 14-DIP (0.300", 7.62mm) | 14-DIP (0.300", 7.62mm) | 14-DIP (0.300", 7.62mm) | 14-DIP (0.300", 7.62mm) | 14-DIP (0.300", 7.62mm) | 14-DIP (0.300", 7.62mm) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
General Purpose Amplifier Substitutes (LT1179CN#PBF, LT1179IN#PBF, OP470GPZ):
These parts maintain the General Purpose amplifier classification matching the TLE2144IN. LT1179CN#PBF and LT1179IN#PBF are functionally identical except for operating temperature range; LT1179IN#PBF extends to -40°C to 85°C, providing broader temperature coverage. OP470GPZ offers comparable bandwidth (6 MHz) to the TLE2144IN (5.9 MHz) with extended temperature range (-40°C to 85°C). All three parts are ROHS3 compliant and maintain Active product status.
J-FET Input Substitutes (AD713JNZ, LT1058CN#PBF):
These parts employ J-FET input topology, resulting in significantly lower input bias current (10 pA and 7 pA respectively, compared to 700 nA in TLE2144IN). This topology is suitable for high-impedance input applications. AD713JNZ operates at 0°C to 70°C; LT1058CN#PBF operates at 0°C to 70°C with notably lower supply current (1.7 mA versus 6.9 mA). Both are ROHS3 compliant and Active status.
Supply Voltage Considerations:
The TLE2144IN operates from 4 V to 44 V. Substitute selection must account for application supply voltage: LT1179 series requires minimum 5 V; AD713JNZ and OP470GPZ require minimum 9 V; LT1058CN#PBF requires minimum 20 V. Maximum supply voltage ranges from 30 V to 36 V for all substitutes, below the TLE2144IN maximum of 44 V.
Temperature Range Considerations:
The TLE2144IN operates from -40°C to 105°C. LT1179IN#PBF and OP470GPZ extend to -40°C but only to 85°C. AD713JNZ and LT1058CN#PBF are limited to 0°C to 70°C. Applications requiring full -40°C to 105°C operation must use TLE2144IN or verify substitute adequacy for the specific temperature profile.
Frequently Asked Questions (FAQ)
Q: Can AD713JNZ directly replace TLE2144IN in all applications?
A: AD713JNZ is mechanically compatible (14-PDIP package) and functionally equivalent in circuit count (4 channels). However, it employs J-FET input topology with 10 pA input bias current versus 700 nA in TLE2144IN. This difference is significant for applications sensitive to input bias current. Additionally, AD713JNZ operates only 0°C to 70°C versus TLE2144IN's -40°C to 105°C. Verify application requirements for input bias current and temperature range before substitution.
Q: What is the key difference between LT1179CN#PBF and LT1179IN#PBF?
A: Both parts are identical in electrical specifications and package form. The primary difference is operating temperature range: LT1179CN#PBF operates 0°C to 70°C; LT1179IN#PBF operates -40°C to 85°C. Select LT1179IN#PBF for applications requiring extended low-temperature operation.
Q: Why does LT1058CN#PBF have such low supply current compared to TLE2144IN?
A: LT1058CN#PBF is a J-FET input amplifier with ultra-low supply current specification (1.7 mA total for four channels). This is a design characteristic of the J-FET topology and represents a fundamental difference from the TLE2144IN's bipolar input stage. This lower supply current is advantageous for battery-powered applications but may not be necessary for line-powered designs.
Q: Can I use OP470GPZ in a circuit designed for TLE2144IN operating at 50 V supply?
A: No. OP470GPZ maximum supply voltage is 36 V. The TLE2144IN operates to 44 V. If your application requires supply voltages above 36 V, OP470GPZ is not suitable. Verify all substitute parts against your specific supply voltage requirements.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All identified substitute parts (AD713JNZ, LT1058CN#PBF, LT1179CN#PBF, LT1179IN#PBF, OP470GPZ) are ROHS3 compliant and maintain Active product status, ensuring regulatory alignment with the TLE2144IN.
Q: Which substitute offers the closest electrical match to TLE2144IN?
A: OP470GPZ provides the closest match among General Purpose amplifiers, with 6 MHz gain bandwidth product (versus 5.9 MHz in TLE2144IN) and comparable slew rate (3 V/µs versus 45 V/µs). However, OP470GPZ has higher input offset voltage (400 µV versus 290 µV) and higher input bias current (15 nA versus 700 nA). Evaluate specific application sensitivity to these parameters.
Q: What is the significance of the 14-PDIP package specification?
A: The 14-PDIP (14-pin Plastic Dual In-line Package) with 0.300" (7.62mm) row spacing is the mechanical form factor. All substitute parts use this identical package, ensuring compatibility with existing PCB layouts, socket configurations, and through-hole assembly processes. Package compatibility is a prerequisite for direct substitution.
Q: Can I substitute TLE2144IN with LT1179CN#PBF in a high-frequency application?
A: No. LT1179CN#PBF has a gain bandwidth product of only 85 kHz, compared to TLE2144IN's 5.9 MHz. This represents a 69-fold reduction in bandwidth. LT1179CN#PBF is designed for low-frequency, ultra-low-power applications and is unsuitable for high-frequency circuits.
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