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TLE2144CDWRG4 Equivalent & Substitute Parts
Part Overview
The TLE2144CDWRG4 is a general-purpose operational amplifier integrated circuit featuring four independent amplifier circuits in a 16-SOIC surface-mount package. This device is designed for rail-to-rail output operation with a supply voltage range of 4 V to 44 V and operates across the industrial temperature range of 0°C to 70°C. The TLE2144CDWRG4 is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TLE2144CDWRG4 |
| Manufacturer | Texas Instruments |
| Category | Linear, Amplifiers |
| Amplifier Type | General Purpose |
| Number of Circuits | 4 |
| Output Type | Rail-to-Rail |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| Slew Rate | 45 V/µs |
| Gain Bandwidth Product | 5.9 MHz |
| Current - Input Bias | 700 nA |
| Voltage - Input Offset | 290 µV |
| Current - Supply | 6.9 mA (x4 Channels) |
| Current - Output / Channel | 50 mA |
| Voltage - Supply Span (Min) | 4 V |
| Voltage - Supply Span (Max) | 44 V |
| Operating Temperature | 0°C ~ 70°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Discontinued at DiGi Electronics |
Substitute Part Grouping Explanation
Substitution of the TLE2144CDWRG4 is determined by the following critical parameters:
Primary Substitution Criteria:
- Number of circuits: 4 independent amplifier channels
- Package type: 16-SOIC surface-mount configuration
- Amplifier classification: General Purpose or J-FET topology
- Supply voltage range: Minimum 4 V to maximum 44 V compatibility
- Operating temperature range: 0°C to 70°C minimum requirement
- Output type: Rail-to-rail capability preferred for direct replacement
- Slew rate and gain bandwidth product: Performance metrics for signal fidelity
Substitution Categories:
Category 1: Direct Functional Replacement (Texas Instruments) The TLE2144CDWR is the active production equivalent of the TLE2144CDWRG4, differing only in packaging format (Tape & Reel versus tube). This part maintains identical electrical specifications and 16-SOIC package geometry.
Category 2: Alternative General-Purpose Amplifiers (Analog Devices) The LT1014DSW#TRPBF and LT1079 series devices provide general-purpose amplification with four circuits in 16-SOIC packaging. These parts operate within the required supply voltage range and temperature specifications but exhibit different performance characteristics in slew rate and gain bandwidth product.
Category 3: J-FET Input Amplifiers (Analog Devices) The AD713JRZ-16, AD713JRZ-16-REEL, LT1058ISW#PBF, and LT1058SW#PBF devices feature J-FET input stages with four circuits in 16-SOIC packaging. These alternatives provide extremely low input bias current (10 pA) but operate within restricted supply voltage ranges compared to the TLE2144CDWRG4.
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Number of Circuits | Slew Rate (V/µs) | Gain Bandwidth Product (MHz) | Current - Input Bias | Voltage - Supply Span Min (V) | Voltage - Supply Span Max (V) | Operating Temperature | Output Type | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|---|
| TLE2144CDWRG4 | Texas Instruments | General Purpose | 4 | 45 | 5.9 | 700 nA | 4 | 44 | 0°C ~ 70°C | Rail-to-Rail | Discontinued |
| TLE2144CDWR | Texas Instruments | General Purpose | 4 | 45 | 5.9 | 700 nA | 4 | 44 | 0°C ~ 70°C | Rail-to-Rail | Active |
| AD713JRZ-16 | Analog Devices Inc. | J-FET | 4 | 20 | 4 | 10 pA | 9 | 36 | 0°C ~ 70°C | — | Active |
| AD713JRZ-16-REEL | Analog Devices Inc. | J-FET | 4 | 20 | 4 | 10 pA | 9 | 36 | 0°C ~ 70°C | — | Active |
| LT1014DSW#TRPBF | Analog Devices Inc. | General Purpose | 4 | 0.4 | 1 | 15 nA | 4 | 44 | 0°C ~ 70°C | — | Active |
| LT1058ISW#PBF | Analog Devices Inc. | J-FET | 4 | 13 | 5 | 10 pA | 20 | 36 | -40°C ~ 85°C | — | Active |
| LT1058SW#PBF | Analog Devices Inc. | J-FET | 4 | 13 | 5 | 10 pA | 20 | 36 | 0°C ~ 70°C | — | Active |
| LT1079ISW#PBF | Analog Devices Inc. | General Purpose | 4 | 0.1 | 0.2 | 6 nA | 2.2 | 30 | -40°C ~ 85°C | — | Active |
| LT1079ISW#TRPBF | Analog Devices Inc. | General Purpose | 4 | 0.1 | 0.2 | 6 nA | 2.2 | 30 | -40°C ~ 85°C | — | Active |
| LT1079SW#PBF | Analog Devices Inc. | General Purpose | 4 | 0.1 | 0.2 | 6 nA | 2.2 | 30 | — | — | Active |
| LT1079SW#TRPBF | Analog Devices Inc. | General Purpose | 4 | 0.1 | 0.2 | 6 nA | 2.2 | 30 | — | — | Active |
Engineering Selection Recommendations
Tier 1: Direct Replacement
The TLE2144CDWR is the recommended substitute for the discontinued TLE2144CDWRG4. This part is manufactured by Texas Instruments and maintains identical electrical specifications, including slew rate (45 V/µs), gain bandwidth product (5.9 MHz), supply voltage range (4 V to 44 V), and operating temperature range (0°C to 70°C). The only difference is packaging format: TLE2144CDWR is supplied in Tape & Reel format, whereas the original part was supplied in tube packaging. Both parts are ROHS3 compliant and carry MSL 1 rating. This substitution requires no circuit redesign.
Tier 2: Performance-Equivalent Alternatives
The LT1014DSW#TRPBF provides general-purpose amplification with identical supply voltage range (4 V to 44 V) and operating temperature range (0°C to 70°C). However, this device exhibits significantly reduced slew rate (0.4 V/µs versus 45 V/µs) and gain bandwidth product (1 MHz versus 5.9 MHz). Selection of this alternative is appropriate only for applications where signal bandwidth requirements are below 1 MHz and slew rate limitations are acceptable.
Tier 3: Low-Bias-Current Alternatives
The AD713JRZ-16 and AD713JRZ-16-REEL devices feature J-FET input stages with extremely low input bias current (10 pA versus 700 nA). These parts are suitable for high-impedance signal sources where input bias current must be minimized. However, the maximum supply voltage is limited to 36 V (versus 44 V for the TLE2144CDWRG4), and slew rate is reduced to 20 V/µs. These devices are active production parts with ROHS3 compliance.
Tier 4: Extended Temperature Range Alternatives
The LT1058ISW#PBF and LT1058SW#PBF devices provide J-FET input amplification with extended operating temperature capability (-40°C to 85°C for the ISW variant). These parts feature slew rate of 13 V/µs and gain bandwidth product of 5 MHz, approaching the performance of the TLE2144CDWRG4. However, the minimum supply voltage requirement is 20 V, which exceeds the 4 V minimum of the original part. These devices are suitable for applications requiring low input bias current and extended temperature operation.
Tier 5: Ultra-Low-Power Alternatives
The LT1079 series (ISW#PBF, ISW#TRPBF, SW#PBF, SW#TRPBF variants) provides general-purpose amplification with extremely low supply current (39 µA per channel versus 6.9 mA for the TLE2144CDWRG4). These devices are appropriate for battery-powered or energy-constrained applications. However, slew rate is severely limited (0.1 V/µs), gain bandwidth product is reduced to 200 kHz, and maximum supply voltage is 30 V. These alternatives are suitable only for low-frequency signal conditioning applications.
All substitute parts listed are ROHS3 compliant and carry MSL 1 rating, meeting environmental and reliability requirements equivalent to the original part.
Frequently Asked Questions (FAQ)
Q: Can the TLE2144CDWR be used as a direct replacement for the TLE2144CDWRG4?
A: Yes. The TLE2144CDWR is the active production equivalent of the TLE2144CDWRG4. Both parts are manufactured by Texas Instruments and share identical electrical specifications, including slew rate, gain bandwidth product, supply voltage range, and operating temperature range. The only difference is packaging format: TLE2144CDWR is supplied in Tape & Reel format. No circuit modifications are required.
Q: What is the primary limitation of the AD713JRZ-16 as a substitute?
A: The AD713JRZ-16 operates with a maximum supply voltage of 36 V, compared to 44 V for the TLE2144CDWRG4. If your circuit requires operation at supply voltages between 36 V and 44 V, this device is not suitable. Additionally, slew rate is reduced from 45 V/µs to 20 V/µs, which may limit performance in high-frequency applications.
Q: Why do the LT1079 series devices have such low supply current?
A: The LT1079 series is designed for ultra-low-power operation, consuming only 39 µA per channel compared to 6.9 mA for the TLE2144CDWRG4. This design approach trades off performance metrics: slew rate is reduced to 0.1 V/µs and gain bandwidth product is limited to 200 kHz. These devices are appropriate for battery-powered applications where signal bandwidth is below 200 kHz.
Q: Can I use the LT1058SW#PBF in place of the TLE2144CDWRG4 in a 4 V supply application?
A: No. The LT1058SW#PBF requires a minimum supply voltage of 20 V. If your circuit operates at 4 V, this device cannot be used. The TLE2144CDWR or LT1014DSW#TRPBF are appropriate alternatives for low-voltage applications.
Q: What is the difference between the AD713JRZ-16 and AD713JRZ-16-REEL?
A: Both parts are electrically identical. The difference is packaging format: AD713JRZ-16 is supplied in tube packaging, while AD713JRZ-16-REEL is supplied in Tape & Reel format. Selection between these variants depends on your procurement and assembly requirements.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All substitute parts listed in this reference are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, meeting environmental and reliability requirements equivalent to the TLE2144CDWRG4.
Q: Which substitute part is best for high-frequency signal conditioning?
A: The TLE2144CDWR is the best choice for high-frequency applications, maintaining the original part's slew rate of 45 V/µs and gain bandwidth product of 5.9 MHz. If the TLE2144CDWR is unavailable, the LT1058SW#PBF provides the next-highest performance with 13 V/µs slew rate and 5 MHz gain bandwidth product, though it requires a minimum supply voltage of 20 V.
Q: What is the input bias current difference between the TLE2144CDWRG4 and the AD713JRZ-16?
A: The TLE2144CDWRG4 has input bias current of 700 nA, while the AD713JRZ-16 has input bias current of 10 pA. The AD713JRZ-16 provides approximately 70,000 times lower input bias current, making it suitable for high-impedance signal sources where bias current-induced errors must be minimized.
Q: Can the LT1014DSW#TRPBF operate at the full 44 V supply voltage of the TLE2144CDWRG4?
A: Yes. The LT1014DSW#TRPBF supports supply voltages from 4 V to 44 V, matching the original part's supply voltage range. However, its slew rate (0.4 V/µs) and gain bandwidth product (1 MHz) are significantly reduced, limiting its use to low-frequency applications below 1 MHz.
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