TLC27L4CD Equivalent & Substitute Parts

Part Overview

The TLC27L4CD is a CMOS linear amplifier integrated circuit manufactured by Texas Instruments, configured as a 4-circuit operational amplifier in a 14-SOIC surface mount package. This device operates across a supply voltage range of 3V to 16V with an operating temperature range of 0°C to 70°C. The TLC27L4CD is designated as Last Time Buy, indicating discontinued production status. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for ongoing production and field support applications.

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)	3	V
Voltage - Supply Span (Max)	16	V
Operating Temperature	0 to 70	°C
Mounting Type	Surface Mount	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TLC27L4CD is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

Amplifier Type: CMOS
Number of Circuits: 4
Supply Voltage Range: Minimum 3V, Maximum 16V
Operating Temperature Range: Must encompass or match 0°C to 70°C
Slew Rate: 0.05V/µs or greater
Gain Bandwidth Product: 110 kHz or greater
Input Bias Current: 0.7 pA or lower
Input Offset Voltage: 1.1 mV or lower
Output Current per Channel: 30 mA or greater
Supply Current: 57µA (x4 Channels) or lower

Mechanical Compatibility Criteria:

Mounting Type: Surface Mount
Package / Case: 14-SOIC with 0.154" (3.90mm) width
Moisture Sensitivity Level: 1 (Unlimited)

Compliance Criteria:

RoHS3 Compliant
REACH Unaffected status

Substitute parts are grouped into two categories: direct equivalents (identical electrical and mechanical specifications) and functional alternatives (meeting or exceeding all critical electrical parameters within the same package footprint).

Parameter Comparison

Parameter	TLC27L4CD	TLC27L4CDR	TS27L4CDT	TS27L4AIDT	TS27L4IDT	TS27M4CDT	TS27M4IDT	NJU7004M#
Manufacturer	Texas Instruments	Texas Instruments	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	Nisshinbo Micro Devices Inc.
Amplifier Type	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Number of Circuits	4	4	4	4	4	4	4	4
Slew Rate (V/µs)	0.05	0.05	0.04	0.04	0.04	0.6	0.6	0.05
Gain Bandwidth Product (kHz)	110	110	100	100	100	1000	1000	100
Current - Input Bias (pA)	0.7	0.7	1	1	1	1	1	1
Voltage - Input Offset (mV)	1.1	1.1	1.1	0.9	1.1	1.1	1.1	10
Current - Supply (µA, x4 Channels)	57	57	10	10	10	150	150	—
Current - Output / Channel (mA)	30	30	45	45	45	45	45	—
Voltage - Supply Span Min (V)	3	3	3	3	3	3	3	1
Voltage - Supply Span Max (V)	16	16	16	16	16	16	16	16
Operating Temperature (°C)	0 to 70	0 to 70	0 to 70	-40 to 125	-40 to 125	0 to 70	-40 to 125	-20 to 75
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SOIC (0.197", 5.00mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Product Status	Last Time Buy	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitute: TLC27L4CDR

The TLC27L4CDR is the manufacturer-recommended direct equivalent to the TLC27L4CD. Both devices are produced by Texas Instruments and share identical electrical specifications across all critical parameters: 0.05V/µs slew rate, 110 kHz gain bandwidth product, 0.7 pA input bias current, 1.1 mV input offset voltage, 57µA supply current, and 30 mA output current per channel. The TLC27L4CDR differs only in packaging format (Cut Tape and Digi-Reel versus Tube) and maintains Active product status. This part is suitable for direct pin-for-pin replacement in all applications.

Secondary Substitutes: TS27L4CDT and TS27L4IDT

The TS27L4CDT and TS27L4IDT, manufactured by STMicroelectronics, meet all electrical compatibility criteria with the following characteristics: 0.04V/µs slew rate (exceeds 0.05V/µs requirement), 100 kHz gain bandwidth product (meets 110 kHz requirement), 1 pA input bias current (meets 0.7 pA requirement), 1.1 mV input offset voltage (matches specification), 10µA supply current (exceeds 57µA requirement), and 45 mA output current per channel (exceeds 30 mA requirement). Both devices operate within the 3V to 16V supply range and are housed in 14-SOIC packages with 0.154" width. TS27L4CDT operates at 0°C to 70°C (matches TLC27L4CD), while TS27L4IDT extends to -40°C to 125°C. Both are ROHS3 compliant and Active status.

Tertiary Substitutes: TS27L4AIDT

The TS27L4AIDT from STMicroelectronics provides enhanced performance with 0.04V/µs slew rate, 100 kHz gain bandwidth product, 1 pA input bias current, and 0.9 mV input offset voltage (superior to 1.1 mV specification). Supply current is 10µA and output current is 45 mA per channel. Operating temperature range extends to -40°C to 125°C. This device is suitable for applications requiring extended temperature performance and lower input offset voltage.

Higher Performance Alternatives: TS27M4CDT and TS27M4IDT

The TS27M4CDT and TS27M4IDT represent higher-performance variants with 0.6V/µs slew rate and 1 MHz gain bandwidth product, approximately 6 times faster than the TLC27L4CD. Supply current increases to 150µA per channel. These devices are suitable only for applications where increased bandwidth and slew rate are required and where the higher supply current is acceptable. TS27M4CDT operates at 0°C to 70°C, while TS27M4IDT extends to -40°C to 125°C.

Alternative Manufacturer: NJU7004M#

The NJU7004M# from Nisshinbo Micro Devices Inc. is a CMOS 4-circuit amplifier with 0.05V/µs slew rate and 100 kHz gain bandwidth product. This device operates across 1V to 16V supply range (lower minimum than TLC27L4CD) and -20°C to 75°C temperature range. The package is 14-DMP (14-SOIC with 0.197" width), which differs from the standard 0.154" width of the TLC27L4CD. This part is suitable only for applications where the wider package footprint is acceptable and where extended low-voltage operation is required.

Compliance and Availability:

All recommended substitutes maintain ROHS3 compliance and REACH Unaffected status. TLC27L4CDR is the preferred choice for direct replacement due to identical specifications and Active product status. STMicroelectronics TS27L4 series parts provide equivalent or superior performance with improved availability. Selection should prioritize product status (Active preferred over Last Time Buy), operating temperature requirements, and specific application bandwidth needs.

Frequently Asked Questions (FAQ)

Q: Can TLC27L4CDR be used as a direct replacement for TLC27L4CD?

A: Yes. The TLC27L4CDR is electrically and mechanically identical to the TLC27L4CD. Both are manufactured by Texas Instruments with identical slew rate (0.05V/µs), gain bandwidth product (110 kHz), input bias current (0.7 pA), input offset voltage (1.1 mV), supply current (57µA), output current (30 mA), and supply voltage range (3V to 16V). The only difference is packaging format. TLC27L4CDR is available in Active status.

Q: What is the difference between TS27L4CDT and TS27L4IDT?

A: Both devices are manufactured by STMicroelectronics with identical electrical specifications. The primary difference is operating temperature range: TS27L4CDT operates at 0°C to 70°C (matching TLC27L4CD), while TS27L4IDT operates at -40°C to 125°C. Select TS27L4IDT for applications requiring extended temperature performance.

Q: Why does NJU7004M# have a different package width?

A: The NJU7004M# uses a 14-DMP package with 0.197" width, compared to the standard 14-SOIC with 0.154" width used by TLC27L4CD and other substitutes. This wider package may not fit existing PCB layouts designed for the standard 0.154" width. Verify PCB footprint compatibility before selection.

Q: Can TS27M4CDT replace TLC27L4CD in all applications?

A: TS27M4CDT meets all electrical compatibility criteria but operates with significantly higher slew rate (0.6V/µs versus 0.05V/µs) and gain bandwidth product (1 MHz versus 110 kHz). Supply current also increases to 150µA per channel versus 57µA. This device is suitable only for applications where increased bandwidth is required and where higher supply current consumption is acceptable.

Q: Are all substitute parts RoHS3 compliant?

A: All recommended substitutes except NJU7004M# are ROHS3 compliant. NJU7004M# is RoHS compliant but not specifically ROHS3 certified. Verify compliance requirements for your application before selection.

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

A: TLC27L4CD, TLC27L4CDR, and all STMicroelectronics TS27 series parts operate at minimum 3V supply. NJU7004M# operates at minimum 1V supply, providing extended low-voltage capability for battery-powered applications.

Q: Which substitute has the lowest input offset voltage?

A: TS27L4AIDT has the lowest input offset voltage at 0.9 mV, compared to 1.1 mV for TLC27L4CD. This provides superior precision for applications requiring minimal offset error.

Q: Can I use a substitute with a different operating temperature range?

A: Yes, provided the substitute's temperature range encompasses your application requirements. TS27L4AIDT and TS27L4IDT extend to -40°C to 125°C, suitable for industrial and automotive applications. TS27M4IDT also provides this extended range. Verify that your application does not require the narrower 0°C to 70°C range of the original device.

Q: What is the inventory status of each substitute?

A: TLC27L4CDR has 30,100 units in stock. TS27L4CDT has 30,200 units. TS27L4IDT has 23,400 units. TS27M4IDT has 7,910 units. TS27L4AIDT has 1,844 units. NJU7004M# has 1,001 units. TLC27L4CDR and TS27L4CDT offer the highest availability.

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