TLC279CD Equivalent & Substitute Parts

Part Overview

The TLC279CD is a CMOS amplifier integrated circuit containing four independent circuits in a 14-SOIC surface mount package, manufactured by Texas Instruments. This device is classified as Last Time Buy, indicating discontinued production with limited remaining inventory. The TLC279CD operates across a supply voltage range of 3V to 16V with a slew rate of 3.6V/µs and gain bandwidth product of 2.2 MHz, making it suitable for general-purpose analog signal conditioning applications requiring low input bias current and moderate bandwidth performance.

Equivalent and substitute parts are necessary due to the Last Time Buy status of the TLC279CD. Identifying compatible alternatives ensures design continuity and long-term supply chain reliability for applications currently utilizing this component.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	4	—
Slew Rate	3.6	V/µs
Gain Bandwidth Product	2.2	MHz
Current - Input Bias	0.6	pA
Voltage - Input Offset	320	µV
Current - Supply (x4 Channels)	2.7	mA
Current - Output / Channel	30	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	16	V
Operating Temperature	0 to 70	°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 compatibility for the TLC279CD is determined by the following critical parameters: amplifier type (CMOS), number of circuits (4), package type (14-SOIC), mounting method (surface mount), and electrical operating ranges (supply voltage 3V to 16V, operating temperature 0°C to 70°C).

Substitute parts are grouped into two categories based on electrical performance alignment:

Category 1: Direct CMOS Amplifier Substitutes — Parts maintaining CMOS amplifier topology with four circuits in 14-SOIC packaging. These include TLC279CDR (Texas Instruments, tape & reel packaging), TS27L4CDT, TS27L4AIDT, TS27L4IDT, and TS27M4CDT/TS27M4IDT (STMicroelectronics). These substitutes share the same package footprint, mounting type, and supply voltage range as the TLC279CD.

Category 2: General Purpose Amplifier Substitute — The NCS20074DR2G (onsemi) represents an alternative topology classified as general purpose amplifier with rail-to-rail output capability. While maintaining four circuits in 14-SOIC packaging and surface mount configuration, this part operates across an extended supply voltage range (2.7V to 36V) and wider temperature range (-40°C to 125°C).

Parameter Comparison

Parameter	TLC279CD	TLC279CDR	NCS20074DR2G	TS27L4CDT	TS27L4AIDT	TS27L4IDT	TS27M4CDT	TS27M4IDT
Manufacturer	Texas Instruments	Texas Instruments	onsemi	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Amplifier Type	CMOS	CMOS	General Purpose	CMOS	CMOS	CMOS	CMOS	CMOS
Number of Circuits	4	4	4	4	4	4	4	4
Output Type	—	—	Rail-to-Rail	—	—	—	—	—
Slew Rate (V/µs)	3.6	3.6	2.4	0.04	0.04	0.04	0.6	0.6
Gain Bandwidth Product (MHz)	2.2	2.2	3.2	0.1	0.1	0.1	1	1
Current - Input Bias (pA)	0.6	0.6	5	1	1	1	1	1
Voltage - Input Offset (µV)	320	320	1300	1100	900	1100	1100	1100
Current - Supply (mA, x4 Channels)	2.7	2.7	0.42	0.01	0.01	0.01	0.15	0.15
Current - Output / Channel (mA)	30	30	65	45	45	45	45	45
Voltage - Supply Span Min (V)	3	3	2.7	3	3	3	3	3
Voltage - Supply Span Max (V)	16	16	36	16	16	16	16	16
Operating Temperature (°C)	0 to 70	0 to 70	-40 to 125	0 to 70	-40 to 125	-40 to 125	0 to 70	-40 to 125
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Last Time Buy	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

TLC279CDR (Texas Instruments) — This part is the direct equivalent to TLC279CD, differing only in packaging format (tape & reel versus tube). All electrical parameters, supply voltage range, operating temperature, and performance specifications are identical. Product status is Active with significantly higher inventory availability (4926 pcs). This substitute is appropriate for applications requiring identical electrical performance and is the primary recommendation for direct replacement.

TS27L4CDT and TS27L4AIDT (STMicroelectronics) — These CMOS amplifiers maintain the same package footprint and supply voltage range as the TLC279CD. However, electrical performance differs substantially: slew rate is reduced to 0.04V/µs (versus 3.6V/µs), and gain bandwidth product is 100 kHz (versus 2.2 MHz). These parts are suitable only for applications where lower bandwidth and slower slew rate are acceptable. TS27L4AIDT offers extended operating temperature range (-40°C to 125°C) compared to TS27L4CDT (0°C to 70°C). Both products are Active status with high inventory availability.

TS27L4IDT (STMicroelectronics) — Electrically identical to TS27L4AIDT with extended operating temperature range (-40°C to 125°C). Suitable for applications requiring low-bandwidth CMOS amplification across wider temperature extremes. Product status is Active with 23,400 pcs inventory.

TS27M4CDT and TS27M4IDT (STMicroelectronics) — These CMOS amplifiers provide intermediate performance between TLC279CD and TS27L4 series: slew rate of 0.6V/µs and gain bandwidth product of 1 MHz. TS27M4CDT operates at 0°C to 70°C (matching TLC279CD temperature range), while TS27M4IDT extends to -40°C to 125°C. Both maintain 3V to 16V supply voltage compatibility. Product status is Active.

NCS20074DR2G (onsemi) — This general purpose amplifier with rail-to-rail output represents an alternative topology. While maintaining four circuits in 14-SOIC packaging, it offers extended supply voltage range (2.7V to 36V) and wider operating temperature (-40°C to 125°C). Slew rate is 2.4V/µs and gain bandwidth product is 3.2 MHz, providing performance comparable to TLC279CD. Input bias current is higher at 5 pA. This substitute is suitable for applications requiring extended supply voltage or temperature range. Product status is Active with highest inventory availability (10,100 pcs).

All substitute parts maintain ROHS3 compliance, MSL rating of 1 (Unlimited), and surface mount 14-SOIC packaging compatible with TLC279CD PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can TLC279CDR be used as a direct replacement for TLC279CD?

A: Yes. TLC279CDR is electrically and functionally identical to TLC279CD. The only difference is packaging format: TLC279CD is supplied in tube packaging, while TLC279CDR is supplied in tape & reel format. Both contain the same die and exhibit identical electrical performance across all specified parameters.

Q: What is the primary difference between TLC279CD and TS27L4CDT?

A: The primary differences are slew rate and gain bandwidth product. TLC279CD has a slew rate of 3.6V/µs and gain bandwidth product of 2.2 MHz, while TS27L4CDT has a slew rate of 0.04V/µs and gain bandwidth product of 100 kHz. TS27L4CDT is suitable only for low-bandwidth applications. Both maintain identical supply voltage range (3V to 16V) and 14-SOIC packaging.

Q: Is NCS20074DR2G compatible with TLC279CD in terms of package footprint?

A: Yes. NCS20074DR2G uses the same 14-SOIC (0.154", 3.90mm width) surface mount package as TLC279CD, ensuring PCB footprint compatibility. However, electrical performance differs: NCS20074DR2G offers higher gain bandwidth product (3.2 MHz versus 2.2 MHz) and extended supply voltage range (2.7V to 36V versus 3V to 16V).

Q: Which substitute part offers the widest operating temperature range?

A: TS27L4IDT, TS27M4IDT, and NCS20074DR2G all operate across -40°C to 125°C, providing the widest temperature range. TLC279CD, TLC279CDR, TS27L4CDT, and TS27M4CDT are limited to 0°C to 70°C.

Q: Can I use TS27M4CDT as a substitute for TLC279CD?

A: TS27M4CDT is compatible in terms of package, supply voltage range (3V to 16V), and operating temperature (0°C to 70°C). However, electrical performance is intermediate: slew rate is 0.6V/µs (versus 3.6V/µs) and gain bandwidth product is 1 MHz (versus 2.2 MHz). Substitution is appropriate only if application bandwidth requirements are satisfied by 1 MHz performance.

Q: What is the advantage of NCS20074DR2G over other substitutes?

A: NCS20074DR2G offers rail-to-rail output capability, extended supply voltage range (2.7V to 36V), and wider operating temperature (-40°C to 125°C). These features make it suitable for applications requiring higher supply voltages or operation across wider temperature extremes. Gain bandwidth product (3.2 MHz) exceeds TLC279CD performance.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (TLC279CDR, NCS20074DR2G, TS27L4CDT, TS27L4AIDT, TS27L4IDT, TS27M4CDT, TS27M4IDT) are ROHS3 compliant with MSL rating of 1 (Unlimited), matching TLC279CD compliance status.

Q: Which substitute has the lowest supply current consumption?

A: TS27L4CDT, TS27L4AIDT, and TS27L4IDT have the lowest supply current at 10µA (x4 channels). This is significantly lower than TLC279CD at 2.7mA (x4 channels), making these parts suitable for battery-powered or low-power applications where bandwidth requirements permit 100 kHz operation.

Q: What is the difference between TS27L4AIDT and TS27L4IDT?

A: Both parts are electrically identical with identical slew rate (0.04V/µs) and gain bandwidth product (100 kHz). The difference is operating temperature range: TS27L4AIDT operates 0°C to 70°C, while TS27L4IDT operates -40°C to 125°C. TS27L4IDT is suitable for extended temperature applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message