TLE2021ACP Equivalent & Substitute Parts

Part Overview

The TLE2021ACP is a general-purpose operational amplifier manufactured by Texas Instruments in the Excalibur™ series. This device is a single-circuit, 8-pin DIP package amplifier designed for linear applications requiring moderate bandwidth and low input bias current. The TLE2021ACP is currently in Last Time Buy status, indicating discontinued production. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure long-term component availability for new production runs and field replacements.

Substiute Parts

TLE2021ACP

Texas InstrumentsIn Stock: 1215TLE2021ACP Datasheet

Current PartRFQ

TLE2021ACDR

Texas InstrumentsIn Stock: 3579TLE2021ACDR Datasheet

MFR RecommendedRFQ

OP90GPZ

Analog Devices Inc.In Stock: 1446OP90GPZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLE2021ACP is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 1
• Slew Rate: 0.65 V/µs (or lower for conservative designs)
• Gain Bandwidth Product: 1.7 MHz (or lower for conservative designs)
• Current - Input Bias: 25 nA (or lower for conservative designs)
• Voltage - Input Offset: 80 µV (or lower for conservative designs)
• Current - Supply: 240 µA (or lower for conservative designs)
• Current - Output / Channel: 20 mA (or lower for conservative designs)
• Voltage - Supply Span: 4 V to 40 V (minimum and maximum must encompass or match the original)
• Operating Temperature: 0°C to 70°C (or wider range for conservative designs)

Mechanical Compatibility Criteria:

• Package / Case: 8-DIP (0.300", 7.62mm) for direct pin-compatible replacement
• Mounting Type: Through Hole for PCB assembly compatibility

Substitute parts are grouped into two categories: direct pin-compatible replacements (same package) and functional equivalents (different package requiring board redesign).

Parameter Comparison

Engineering Selection Recommendations

TLE2021ACDR (Texas Instruments, Surface Mount)

The TLE2021ACDR is the manufacturer-recommended substitute from Texas Instruments. It maintains identical electrical specifications to the TLE2021ACP, including slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current. Both devices operate across the same 4 V to 40 V supply range and share the same 0°C to 70°C operating temperature window. The TLE2021ACDR is ROHS3 compliant and currently in Active product status, ensuring long-term availability.

The primary difference is packaging: the TLE2021ACDR uses 8-SOIC surface-mount technology versus the 8-DIP through-hole package of the TLE2021ACP. This substitution requires PCB redesign and assembly process modification. The TLE2021ACDR is supplied in Tape & Reel packaging with higher inventory availability (3522 pieces in stock).

OP90GPZ (Analog Devices Inc., Through Hole)

The OP90GPZ is a pin-compatible through-hole substitute in 8-DIP packaging, eliminating the need for PCB redesign. This device is manufactured by Analog Devices Inc. and is currently in Active product status with 1363 pieces in stock.

The OP90GPZ exhibits significantly different electrical characteristics compared to the TLE2021ACP. The slew rate is substantially lower (0.012 V/µs versus 0.65 V/µs), representing a 54-fold reduction in slew rate performance. Input bias current is lower (4 nA versus 25 nA), and supply current is significantly reduced (14 µA versus 240 µA). Input offset voltage is higher (125 µV versus 80 µV), and output current per channel is lower (5 mA versus 20 mA).

The OP90GPZ operates across a wider supply range (1.6 V to 36 V) and extended temperature range (-40°C to 85°C). These differences indicate the OP90GPZ is optimized for low-power, low-speed applications and is not electrically equivalent to the TLE2021ACP for applications requiring the original device's bandwidth and output drive capability.

Selection Basis:

For direct functional replacement with identical electrical performance, select TLE2021ACDR if PCB redesign is feasible. For through-hole package retention without redesign, the OP90GPZ is pin-compatible but requires verification that reduced slew rate, lower output current, and higher input offset voltage are acceptable for the specific application. Both substitutes are ROHS3 compliant and REACH unaffected, matching the compliance profile of the original part.

Frequently Asked Questions (FAQ)

Q: Can the TLE2021ACDR be used as a direct replacement for the TLE2021ACP without circuit modification?

A: The TLE2021ACDR is electrically equivalent to the TLE2021ACP and requires no circuit modification. However, it uses 8-SOIC surface-mount packaging instead of 8-DIP through-hole packaging. PCB layout redesign and assembly process changes are required. Pin functionality and electrical specifications are identical.

Q: What are the key differences between TLE2021ACDR and OP90GPZ?

A: Both are single-circuit general-purpose amplifiers, but with different performance profiles. The TLE2021ACDR matches the TLE2021ACP's electrical specifications exactly. The OP90GPZ has significantly lower slew rate (0.012 V/µs versus 0.65 V/µs), lower output current (5 mA versus 20 mA), and lower supply current (14 µA versus 240 µA). The OP90GPZ is optimized for low-power applications, while the TLE2021ACDR maintains the original performance envelope.

Q: Is the OP90GPZ pin-compatible with the TLE2021ACP?

A: Yes, the OP90GPZ is pin-compatible in 8-DIP through-hole packaging. No PCB redesign is required for physical installation. However, the significantly different electrical characteristics (particularly slew rate and output current) may affect circuit performance depending on application requirements.

Q: What is the supply voltage range for each substitute?

A: TLE2021ACP and TLE2021ACDR both operate from 4 V to 40 V. The OP90GPZ operates from 1.6 V to 36 V, providing a lower minimum supply voltage but slightly lower maximum supply voltage.

Q: Are all three parts RoHS3 compliant?

A: Yes, the TLE2021ACP, TLE2021ACDR, and OP90GPZ are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Which substitute should be selected for a new design?

A: For new designs requiring the electrical performance of the TLE2021ACP, select the TLE2021ACDR. It is the manufacturer-recommended substitute with identical specifications and Active product status. The OP90GPZ should be selected only if low-power operation and reduced slew rate are acceptable for the application and through-hole packaging is mandatory.

Q: What is the operating temperature range for each part?

A: The TLE2021ACP and TLE2021ACDR operate from 0°C to 70°C. The OP90GPZ operates from -40°C to 85°C, providing extended temperature range capability for applications requiring operation outside the 0°C to 70°C window.