TLC27L4ID CMOS Amplifier Equivalent & Substitute Parts

Part Overview

The TLC27L4ID is a CMOS amplifier integrated circuit manufactured by Texas Instruments, containing four independent operational amplifier circuits in a 14-SOIC surface mount package. This device is classified as a Last Time Buy product, indicating discontinued production with limited remaining inventory. The TLC27L4ID operates across a wide supply voltage range of 4V to 16V and is suitable for low-power analog signal processing applications requiring CMOS technology characteristics.

Due to the Last Time Buy status of the TLC27L4ID, equivalent and substitute parts are necessary for design continuity, long-term production planning, and component availability assurance. Substitute devices must maintain functional compatibility through matching electrical specifications and mechanical packaging standards.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	4	—
Slew Rate	0.05	V/µs
Gain Bandwidth Product	110	kHz
Current - Input Bias	0.7	pA
Voltage - Input Offset	1.1	mV
Current - Supply (x4 Channels)	57	µA
Current - Output / Channel	30	mA
Voltage - Supply Span (Min)	4	V
Voltage - Supply Span (Max)	16	V
Operating Temperature Range	-40 to 85	°C
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TLC27L4ID is determined by strict alignment of electrical and mechanical parameters. The following criteria establish valid substitute relationships:

Primary Substitution Criteria:

Amplifier Type: CMOS
Number of Circuits: 4
Package Type: 14-SOIC surface mount configuration
Supply Voltage Range: Minimum 4V to Maximum 16V overlap
Operating Temperature: Compatibility with application requirements
Slew Rate: 0.05V/µs or higher
Gain Bandwidth Product: 110 kHz or higher
Input Bias Current: 0.7 pA or lower
Output Current per Channel: 30 mA or higher

Substitution Categories:

Category 1 - Direct Manufacturer Equivalent (Texas Instruments): TLC27L4IDR maintains identical electrical specifications and differs only in packaging format (Cut Tape & Digi-Reel versus Tube). This part is Active status with significantly higher inventory availability.

Category 2 - Cross-Manufacturer Substitutes (STMicroelectronics TS27L4 Series): TS27L4AIDT, TS27L4CDT, and TS27L4IDT meet or exceed all critical electrical parameters. These parts feature improved slew rate (0.04V/µs), lower supply current (10µA), and higher output current capability (45 mA). Operating temperature ranges vary by specific part number.

Category 3 - Higher Performance Substitutes (STMicroelectronics TS27M4 Series): TS27M4CDT and TS27M4IDT provide enhanced performance with 0.6V/µs slew rate and 1 MHz gain bandwidth product, suitable for applications requiring faster signal processing. These parts maintain full parameter compatibility for supply voltage and package specifications.

Category 4 - Alternative Manufacturer (Nisshinbo Micro Devices): NJU7004M# operates within compatible electrical ranges but features a different package variant (14-DMP, 5.00mm width) and narrower operating temperature range (-20°C to 75°C). This part is suitable only when package dimension variation is acceptable.

Parameter Comparison

Part Number	Manufacturer	Slew Rate (V/µs)	GBW (kHz)	Input Bias (pA)	Supply Current (µA)	Output Current (mA)	Temp Range (°C)	Package	Status
TLC27L4ID	Texas Instruments	0.05	110	0.7	57	30	-40 to 85	14-SOIC	Last Time Buy
TLC27L4IDR	Texas Instruments	0.05	110	0.7	57	30	-40 to 85	14-SOIC	Active
TS27L4AIDT	STMicroelectronics	0.04	100	1	10	45	-40 to 125	14-SOIC	Active
TS27L4CDT	STMicroelectronics	0.04	100	1	10	45	0 to 70	14-SOIC	Active
TS27L4IDT	STMicroelectronics	0.04	100	1	10	45	-40 to 125	14-SOIC	Active
TS27M4CDT	STMicroelectronics	0.6	1000	1	150	45	0 to 70	14-SOIC	Active
TS27M4IDT	STMicroelectronics	0.6	1000	1	150	45	-40 to 125	14-SOIC	Active
NJU7004M#	Nisshinbo Micro Devices	0.05	100	1	—	—	-20 to 75	14-DMP	Active

Engineering Selection Recommendations

Recommended Primary Substitute: TLC27L4IDR

TLC27L4IDR is the manufacturer-recommended equivalent from Texas Instruments. This part maintains identical electrical specifications to the TLC27L4ID while offering Active product status and substantially higher inventory availability (25,400 units). The only difference is packaging format (Cut Tape & Digi-Reel versus Tube), which does not affect electrical performance or PCB assembly compatibility. This part is suitable for all applications currently using TLC27L4ID without design modification.

Recommended Secondary Substitutes: TS27L4IDT or TS27L4AIDT

STMicroelectronics TS27L4 series parts provide cross-manufacturer compatibility with improved electrical characteristics. TS27L4IDT offers the widest operating temperature range (-40°C to 125°C) matching industrial and extended-temperature applications. TS27L4AIDT provides identical performance with Tape & Reel packaging. Both parts feature lower supply current consumption (10µA versus 57µA) and higher output current capability (45 mA versus 30 mA), making them suitable for power-sensitive and higher-load applications. All TS27L4 variants maintain ROHS3 compliance and MSL Level 1 rating.

Performance-Enhanced Alternative: TS27M4IDT

For applications requiring higher bandwidth and faster slew rate, TS27M4IDT provides 1 MHz gain bandwidth product and 0.6V/µs slew rate. This part is suitable for signal conditioning applications with higher frequency content. The trade-off is increased supply current consumption (150µA versus 57µA). TS27M4IDT maintains the widest operating temperature range (-40°C to 125°C) and is ROHS3 compliant.

Alternative Manufacturer Option: NJU7004M#

Nisshinbo Micro Devices NJU7004M# is functionally compatible but features a different package variant (14-DMP with 5.00mm width versus standard 14-SOIC 3.90mm width). This part is suitable only when PCB layout accommodates the wider package footprint. The operating temperature range is narrower (-20°C to 75°C), limiting use in extended-temperature applications. This option is not recommended for new designs unless specific design constraints require the alternative package.

Frequently Asked Questions (FAQ)

Q: Can TLC27L4IDR be used as a direct replacement for TLC27L4ID without PCB modification?

A: Yes. TLC27L4IDR is electrically and mechanically identical to TLC27L4ID. Both use 14-SOIC surface mount packaging with 3.90mm width. The only difference is packaging format (Cut Tape & Digi-Reel versus Tube), which does not affect PCB assembly or electrical performance. No design changes are required.

Q: What are the key differences between TLC27L4ID and TS27L4IDT?

A: Both parts are four-channel CMOS amplifiers in 14-SOIC packages with compatible supply voltage ranges (4V to 16V). TS27L4IDT offers improved specifications: faster slew rate (0.04V/µs versus 0.05V/µs), lower supply current (10µA versus 57µA), higher output current (45 mA versus 30 mA), and wider operating temperature range (-40°C to 125°C versus -40°C to 85°C). These improvements make TS27L4IDT suitable for applications with higher performance requirements or extended temperature operation.

Q: Is NJU7004M# compatible with TLC27L4ID in terms of PCB footprint?

A: No. NJU7004M# uses a 14-DMP package with 5.00mm width, while TLC27L4ID uses 14-SOIC with 3.90mm width. The wider package requires PCB layout modification and is not a direct pin-compatible substitute. NJU7004M# is suitable only when PCB design accommodates the alternative package dimensions.

Q: When should TS27M4IDT be selected instead of TS27L4IDT?

A: TS27M4IDT is selected for applications requiring higher bandwidth and faster signal processing. It provides 1 MHz gain bandwidth product and 0.6V/µs slew rate compared to TS27L4IDT specifications of 100 kHz and 0.04V/µs. The trade-off is increased supply current consumption (150µA versus 10µA). TS27M4IDT is suitable for high-frequency signal conditioning, filtering, and instrumentation applications where bandwidth is critical.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All recommended substitute parts (TLC27L4IDR, TS27L4AIDT, TS27L4CDT, TS27L4IDT, TS27M4CDT, TS27M4IDT) are ROHS3 compliant. NJU7004M# is RoHS compliant. All parts have Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements.

Q: What is the inventory status of substitute parts?

A: TLC27L4IDR has the highest availability with 25,400 units in stock. TS27L4IDT has 23,400 units, TS27L4CDT has 30,200 units, and TS27L4AIDT has 1,844 units. TS27M4IDT has 7,910 units and TS27M4CDT has 5,450 units. NJU7004M# has 1,001 units. For long-term production planning, TLC27L4IDR and TS27L4CDT offer the most stable supply.

Q: Can TS27L4CDT be used in applications requiring -40°C operation?

A: No. TS27L4CDT operates from 0°C to 70°C and is not suitable for applications requiring -40°C minimum temperature operation. For extended low-temperature applications, use TS27L4IDT or TS27L4AIDT, which both operate from -40°C to 125°C.

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