TL972IPG4 Equivalent & Substitute Parts

Part Overview

The TL972IPG4 is a general-purpose operational amplifier featuring dual circuits in an 8-PDIP through-hole package. Manufactured by Texas Instruments, this rail-to-rail amplifier is designed for applications requiring low input bias current and moderate bandwidth performance. The device is currently classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design support and procurement continuity.

Substiute Parts

TL972IPG4

Texas InstrumentsIn Stock: 973TL972IPG4 Datasheet

Current PartRFQ

TL972IP

Texas InstrumentsIn Stock: 1918TL972IP Datasheet

MFR RecommendedRFQ

ALD2704BPAL

Advanced Linear Devices Inc.In Stock: 1146ALD2704BPAL Datasheet

MFR RecommendedRFQ

ALD2704PAL

Advanced Linear Devices Inc.In Stock: 1095ALD2704PAL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TL972IPG4 is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

• Package type: 8-DIP (0.300", 7.62mm) through-hole configuration
• Number of circuits: 2 independent amplifier stages
• Output configuration: Rail-to-rail capability
• Slew rate: 5 V/µs minimum
• Supply voltage range: Minimum 2.7 V, maximum 12 V
• Operating temperature range: -40°C ~ 125°C
• Mounting type: Through-hole

Substitution Categories:

Direct Equivalent (Same Amplifier Type): TL972IP represents the active production equivalent of TL972IPG4. Both are general-purpose amplifiers with identical electrical specifications and packaging, differing only in product status and packaging format (tube vs. standard).

Functional Alternatives (Different Amplifier Type): ALD2704BPAL and ALD2704PAL are CMOS-based amplifiers that share the same package footprint and dual-circuit configuration. These alternatives operate within overlapping supply voltage ranges (6.5 V to 10 V) and maintain rail-to-rail output capability. However, they exhibit different electrical characteristics including lower input bias current (1 pA vs. 200 nA), reduced gain-bandwidth product (2.1 MHz vs. 12 MHz), and lower output current per channel (15 mA vs. 80 mA).

Parameter Comparison

Engineering Selection Recommendations

TL972IP (Recommended Primary Substitute): TL972IP is the active production equivalent manufactured by Texas Instruments. This part maintains complete electrical and functional parity with TL972IPG4 across all specified parameters. Selection of TL972IP eliminates obsolescence risk while preserving design performance and compatibility. The part is ROHS3 compliant and currently in active production status with established supply chain availability.

ALD2704BPAL and ALD2704PAL (Functional Alternatives): These CMOS amplifiers are suitable for applications where the reduced gain-bandwidth product (2.1 MHz vs. 12 MHz) and lower output current capability (15 mA vs. 80 mA) are acceptable. The ALD2704 series offers superior input bias current performance (1 pA vs. 200 nA), beneficial for high-impedance input applications. However, the restricted operating temperature range (0°C ~ 70°C vs. -40°C ~ 125°C) and narrower supply voltage window (6.5 V to 10 V vs. 2.7 V to 12 V) limit applicability to designs operating within these constraints. Both variants are ROHS3 compliant and active production parts.

Compliance Considerations: All identified substitutes maintain ROHS3 compliance and REACH unaffected status, consistent with the original TL972IPG4 specification.

Frequently Asked Questions (FAQ)

Q: Can TL972IP be used as a direct replacement for TL972IPG4?

A: Yes. TL972IP is the active production equivalent of TL972IPG4. Both parts share identical electrical specifications, package configuration (8-DIP), and functional characteristics. The primary difference is product status: TL972IPG4 is obsolete while TL972IP is in active production. Substitution requires no circuit modifications.

Q: What are the key differences between TL972IP and the ALD2704 series?

A: TL972IP and ALD2704 parts differ in amplifier technology and performance characteristics. TL972IP is a general-purpose amplifier with 12 MHz gain-bandwidth product and 80 mA output current per channel. ALD2704 variants are CMOS amplifiers with 2.1 MHz gain-bandwidth product and 15 mA output current per channel. ALD2704 offers superior input bias current (1 pA vs. 200 nA) but operates within a narrower supply voltage range (6.5 V to 10 V vs. 2.7 V to 12 V) and restricted temperature range (0°C to 70°C vs. -40°C to 125°C).

Q: Are all substitute parts compatible with the 8-DIP through-hole package?

A: Yes. All identified substitutes—TL972IP, ALD2704BPAL, and ALD2704PAL—are packaged in 8-DIP (0.300", 7.62mm) through-hole configuration, ensuring mechanical and pin-compatible installation on existing printed circuit boards designed for TL972IPG4.

Q: What is the difference between ALD2704BPAL and ALD2704PAL?

A: Both parts are CMOS dual-amplifier circuits in 8-DIP packaging with identical electrical specifications except for voltage input offset: ALD2704BPAL specifies 2 mV maximum offset while ALD2704PAL specifies 5 mV maximum offset. Selection depends on application requirements for input offset voltage precision.

Q: Can ALD2704 parts be used in applications requiring -40°C to 125°C operation?

A: No. ALD2704BPAL and ALD2704PAL are rated for 0°C to 70°C operating temperature range only. Applications requiring -40°C to 125°C operation must use TL972IP, which maintains the full temperature specification of the original TL972IPG4.

Q: What supply voltage range applies to each substitute?

A: TL972IP operates across 2.7 V to 12 V supply span, identical to TL972IPG4. ALD2704BPAL and ALD2704PAL operate across 6.5 V to 10 V supply span. Designs operating below 6.5 V or above 10 V supply voltage cannot use ALD2704 variants.

Q: Are all substitutes RoHS compliant?

A: Yes. TL972IP, ALD2704BPAL, and ALD2704PAL are all ROHS3 compliant, consistent with TL972IPG4 compliance status.