TLE2071CPG4 Equivalent & Substitute Parts

Part Overview

The TLE2071CPG4 is a J-FET input operational amplifier manufactured by Texas Instruments, part of the Excalibur™ series. This device integrates one amplifier circuit in an 8-DIP through-hole package and is designed for applications requiring low input bias current and high input impedance characteristics. The TLE2071CPG4 is classified as obsolete; however, 915 pieces remain in stock as new original inventory. Due to its obsolete status, identifying functionally equivalent substitute components is essential for design continuity and long-term supply chain management.

Substiute Parts

TLE2071CPG4

Texas InstrumentsIn Stock: 1012TLE2071CPG4 Datasheet

Current PartRFQ

TLE2071CP

Texas InstrumentsIn Stock: 3199TLE2071CP Datasheet

MFR RecommendedRFQ

AD845KNZ

Analog Devices Inc.In Stock: 3989AD845KNZ Datasheet

MFR RecommendedRFQ

LT1008CN8#PBF

Analog Devices Inc.In Stock: 1176LT1008CN8#PBF Datasheet

MFR RecommendedRFQ

OP42GPZ

Analog Devices Inc.In Stock: 1866OP42GPZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLE2071CPG4 is determined by strict alignment of electrical and mechanical parameters within the J-FET operational amplifier category. The following criteria establish valid substitution relationships:

Primary Substitution Criteria:

• Amplifier Type: J-FET input architecture
• Package / Case: 8-DIP (0.300", 7.62mm) through-hole configuration
• Number of Circuits: Single amplifier circuit
• Mounting Type: Through-hole compatibility
• Supply Voltage Range: Overlap with 4.5 V to 38 V span
• Operating Temperature Range: Minimum coverage of 0°C to 70°C
• RoHS Compliance: ROHS3 Compliant status

Electrical Parameter Tolerance Bands: Substitute parts must operate within the functional envelope defined by the TLE2071CPG4 specifications. Critical parameters include slew rate (45 V/µs), gain bandwidth product (10 MHz), input bias current (20 pA), and input offset voltage (490 µV). Substitutes may exceed these specifications without functional degradation in most applications; however, significant deviations in supply current or output current capability may affect circuit performance.

Parameter Comparison

Engineering Selection Recommendations

TLE2071CP (Texas Instruments)

The TLE2071CP is the direct successor to the TLE2071CPG4 within the Texas Instruments product line. Both devices share identical electrical specifications, including slew rate (45 V/µs), gain bandwidth product (10 MHz), input bias current (20 pA), and input offset voltage (490 µV). The TLE2071CP maintains active product status and is available in higher inventory quantities (3141 pieces). This part is the preferred substitute for direct replacement applications where design continuity and parameter matching are required. The only difference is packaging format (tube versus unspecified for the original), which does not affect electrical performance.

AD845KNZ (Analog Devices Inc.)

The AD845KNZ is a J-FET input operational amplifier with enhanced performance characteristics. It provides higher slew rate (100 V/µs versus 45 V/µs) and greater gain bandwidth product (16 MHz versus 10 MHz). However, the AD845KNZ exhibits higher input bias current (500 pA versus 20 pA) and lower input offset voltage (100 µV versus 490 µV). The minimum supply voltage requirement is 9.5 V, which exceeds the TLE2071CPG4 minimum of 4.5 V. This part is suitable for applications where higher speed performance is beneficial and where the minimum supply voltage constraint is not limiting. Active product status and substantial inventory (3910 pieces) support long-term availability.

LT1008CN8#PBF (Analog Devices Inc.)

The LT1008CN8#PBF is a general-purpose operational amplifier with significantly different electrical characteristics. It features extremely low slew rate (0.2 V/µs), lower input bias current (30 pA), and superior input offset voltage (30 µV). Supply current is substantially reduced (380 µA versus 1.7 mA). The amplifier type differs from the TLE2071CPG4 (general purpose versus J-FET), which affects input impedance and noise characteristics. This part is applicable only in applications where low-speed operation, minimal power consumption, and low offset voltage are prioritized over J-FET input characteristics. Active product status and adequate inventory (1105 pieces) are available.

OP42GPZ (Analog Devices Inc.)

The OP42GPZ is a J-FET input operational amplifier with performance characteristics closely aligned to the TLE2071CPG4. Slew rate (50 V/µs) and gain bandwidth product (10 MHz) are comparable. Input bias current (130 pA) and input offset voltage (1.5 mV) are higher than the original specification. The minimum supply voltage requirement is 16 V, which restricts operation in low-voltage applications. Operating temperature range extends to -40°C to 85°C, providing broader environmental coverage. This part is suitable for applications requiring extended temperature operation and where the higher minimum supply voltage is acceptable. Active product status and good inventory availability (1835 pieces) support deployment.

Frequently Asked Questions (FAQ)

Q: Can the TLE2071CP directly replace the TLE2071CPG4 without circuit modification?

A: Yes. The TLE2071CP shares identical electrical specifications with the TLE2071CPG4, including slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current, and supply voltage range. Both devices are packaged in 8-DIP through-hole configuration. Direct substitution is valid for all applications where the TLE2071CPG4 was originally specified.

Q: What is the primary difference between the TLE2071CPG4 and TLE2071CP?

A: The TLE2071CPG4 is classified as obsolete, while the TLE2071CP maintains active product status. The packaging format differs (unspecified for TLE2071CPG4 versus tube for TLE2071CP), but electrical performance is identical. The TLE2071CP is recommended for new designs and ongoing production due to its active status and higher inventory availability.

Q: Is the AD845KNZ a suitable substitute if my application requires higher speed performance?

A: The AD845KNZ provides enhanced slew rate (100 V/µs) and gain bandwidth product (16 MHz) compared to the TLE2071CPG4 (45 V/µs and 10 MHz). However, the AD845KNZ requires a minimum supply voltage of 9.5 V, whereas the TLE2071CPG4 operates from 4.5 V. If your circuit operates at supply voltages below 9.5 V, the AD845KNZ is not compatible. Additionally, input bias current is significantly higher (500 pA versus 20 pA), which may affect circuit performance in high-impedance applications.

Q: Why does the LT1008CN8#PBF have such different specifications?

A: The LT1008CN8#PBF is classified as a general-purpose operational amplifier, whereas the TLE2071CPG4 is a J-FET input amplifier. This fundamental architectural difference results in different input impedance, bias current characteristics, and noise performance. The LT1008CN8#PBF is optimized for low power consumption (380 µA supply current) and low offset voltage (30 µV), making it suitable for precision, low-power applications rather than high-impedance signal conditioning.

Q: Can I use the OP42GPZ in a circuit designed for the TLE2071CPG4 if the supply voltage is 16 V or higher?

A: The OP42GPZ can be used if the supply voltage meets its minimum requirement of 16 V and the circuit can tolerate higher input bias current (130 pA versus 20 pA) and input offset voltage (1.5 mV versus 490 µV). The OP42GPZ provides comparable slew rate and gain bandwidth product. However, circuit performance may differ due to increased input offset voltage, which may require recalibration of precision circuits. Extended operating temperature range (-40°C to 85°C) is an additional benefit if environmental conditions demand it.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (TLE2071CP, AD845KNZ, LT1008CN8#PBF, and OP42GPZ) are ROHS3 compliant, matching the compliance status of the TLE2071CPG4. All parts are also REACH unaffected and classified under ECCN EAR99.

Q: What is the significance of the 8-DIP package format for substitution?

A: The 8-DIP (0.300", 7.62mm) through-hole package is a standard dual-in-line configuration that ensures mechanical and electrical compatibility across all listed substitute parts. This package format allows direct socket replacement without PCB redesign. All substitute parts maintain this identical package specification, ensuring pin-for-pin compatibility and through-hole mounting compatibility.

Q: Which substitute part offers the best inventory availability?

A: The AD845KNZ offers the highest inventory availability with 3910 pieces in stock, followed by the TLE2071CP with 3141 pieces. Both parts provide substantial supply security for production requirements. The OP42GPZ (1835 pieces) and LT1008CN8#PBF (1105 pieces) also maintain adequate inventory levels.