TLC4501CD Equivalent & Substitute Parts

Part Overview

The TLC4501CD is a general-purpose operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device features rail-to-rail output capability and is designed for linear amplification applications requiring low input offset voltage and minimal input bias current. The TLC4501CD is classified as Last Time Buy, indicating discontinued production status. Identification of equivalent and substitute parts is necessary to ensure design continuity and procurement availability for ongoing production requirements.

Substiute Parts

TLC4501CD

Texas InstrumentsIn Stock: 899TLC4501CD Datasheet

Current PartRFQ

TLC4501IDR

Texas InstrumentsIn Stock: 1476TLC4501IDR Datasheet

MFR RecommendedRFQ

MAX4091ASA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1125MAX4091ASA+ Datasheet

MFR RecommendedRFQ

MAX4091ASA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 4095MAX4091ASA+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC4501CD is determined by electrical and mechanical parameter compatibility within the general-purpose operational amplifier category. The following criteria establish valid substitution relationships:

Primary Compatibility Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 1
• Output Type: Rail-to-Rail
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount

Secondary Electrical Parameters:

• Slew Rate: 2.5 V/µs (minimum acceptable)
• Gain Bandwidth Product: 4.7 MHz (minimum acceptable)
• Current - Input Bias: 1 pA (maximum acceptable)
• Voltage - Input Offset: 10 µV (maximum acceptable)
• Current - Supply: 1 mA (maximum acceptable)
• Current - Output / Channel: 50 mA (minimum acceptable)
• Voltage - Supply Span: 4 V to 6 V (operating range)

Substitute parts must satisfy all primary compatibility criteria and maintain electrical performance within the specified secondary parameters to ensure functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

TLC4501IDR (Texas Instruments)

The TLC4501IDR is the manufacturer-recommended direct substitute for the TLC4501CD. Both devices share identical electrical specifications, including slew rate (2.5 V/µs), gain bandwidth product (4.7 MHz), input bias current (1 pA), and input offset voltage (10 µV). The primary difference is packaging format: TLC4501IDR is supplied in Tape & Reel (TR) configuration versus Tube for the TLC4501CD. The TLC4501IDR maintains Active product status, ensuring continued availability and manufacturing support. Operating temperature range extends to -40°C to 125°C, providing broader environmental coverage than the original part. This substitute is suitable for direct replacement in applications where the TLC4501CD was originally specified.

MAX4091ASA+ and MAX4091ASA+T (Analog Devices Inc./Maxim Integrated)

The MAX4091 series devices are functionally equivalent general-purpose operational amplifiers in 8-SOIC packaging with rail-to-rail output capability. Both MAX4091ASA+ (Tube) and MAX4091ASA+T (Tape & Reel) variants are Active products with extended operating temperature range (-40°C to 125°C). These devices feature lower supply current (130 µA versus 1 mA) and reduced minimum supply voltage (2.7 V versus 4 V), offering improved power efficiency in battery-powered or low-voltage applications. However, slew rate (0.2 V/µs) and gain bandwidth product (500 kHz) are significantly lower than the TLC4501CD, making these substitutes suitable only for applications where bandwidth and slew rate requirements are less stringent. All devices maintain ROHS3 compliance and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can the TLC4501IDR directly replace the TLC4501CD in existing designs?

A: Yes. The TLC4501IDR is the manufacturer-recommended substitute with identical electrical specifications. The only difference is packaging format (Tape & Reel versus Tube). No circuit modifications are required.

Q: What are the key differences between TLC4501IDR and MAX4091ASA+ substitutes?

A: The TLC4501IDR maintains the original slew rate (2.5 V/µs) and gain bandwidth product (4.7 MHz). The MAX4091ASA+ series has significantly lower slew rate (0.2 V/µs) and bandwidth (500 kHz), making it unsuitable for high-speed applications. The MAX4091 series offers lower power consumption (130 µA versus 1 mA) and operates at lower minimum supply voltage (2.7 V versus 4 V).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The TLC4501IDR, MAX4091ASA+, and MAX4091ASA+T are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the original TLC4501CD specifications.

Q: What is the difference between MAX4091ASA+ and MAX4091ASA+T?

A: Both devices have identical electrical specifications. MAX4091ASA+ is supplied in Tube packaging, while MAX4091ASA+T is supplied in Tape & Reel (TR) format. Selection depends on procurement and assembly requirements.

Q: Why is the TLC4501CD classified as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued production. The TLC4501IDR is the active production equivalent, ensuring continued availability for new designs and ongoing production support.

Q: Can MAX4091ASA+ be used in applications requiring 4.7 MHz bandwidth?

A: No. The MAX4091ASA+ has a gain bandwidth product of only 500 kHz, insufficient for applications requiring 4.7 MHz bandwidth. The TLC4501IDR must be used for bandwidth-critical applications.

Q: What is the operating temperature range difference between substitutes?

A: The TLC4501CD operates from 0°C to 70°C. Both TLC4501IDR and MAX4091 series extend this to -40°C to 125°C, providing broader environmental coverage for industrial and extended-temperature applications.