TLC27M4BCDR Equivalent & Substitute Parts

Part Overview

The TLC27M4BCDR is a general-purpose operational amplifier integrated circuit manufactured by Texas Instruments, featuring four independent amplifier circuits in a 14-SOIC surface mount package. This LinCMOS™ series device is classified as Active product status and is RoHS3 compliant. The TLC27M4BCDR serves applications requiring low-power, general-purpose amplification with moderate bandwidth and slew rate characteristics. Substitute parts are identified when equivalent electrical performance, package compatibility, and supply voltage ranges align with the original specification, enabling component interchangeability in production and field applications.

Key Parameters

Parameter	Value	Unit
Manufacturer	Texas Instruments	—
Part Number	TLC27M4BCDR	—
Category	Linear, Amplifiers	—
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Slew Rate	0.62	V/µs
Gain Bandwidth Product	525	kHz
Current - Input Bias	0.7	pA
Voltage - Input Offset	260	µV
Current - Supply (x4 Channels)	570	µA
Current - Output / Channel	30	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	16	V
Operating Temperature	0 to 70	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—
Product Status	Active	—

Substitute Part Grouping Explanation

Substitute parts for the TLC27M4BCDR are qualified based on the following criteria:

Package Compatibility: All substitute parts must use the 14-SOIC (0.154", 3.90mm Width) surface mount package to ensure mechanical and electrical compatibility with existing PCB layouts.

Supply Voltage Range: Substitute parts must support the minimum 3 V and maximum 16 V supply voltage span to maintain operation across the same power supply conditions.

Circuit Configuration: All substitute parts contain four independent amplifier circuits, matching the quad-channel architecture of the main part.

Mounting Technology: Surface mount technology is required for all substitutes to align with modern manufacturing processes.

Compliance Standards: All substitute parts must maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating to meet environmental and reliability requirements.

Electrical Performance Tolerance: Substitute parts are grouped by their electrical characteristics, including slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current per channel. Parts with similar or superior electrical performance within the allowed parameter ranges are considered functionally equivalent.

Parameter Comparison

Parameter	TLC27M4BCDR (Main)	TS27L4AIDT	TS27L4CDT	TS27L4IDT	TS27M4IDT	Unit
Manufacturer	Texas Instruments	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	—
Amplifier Type	General Purpose	CMOS	CMOS	CMOS	CMOS	—
Number of Circuits	4	4	4	4	4	—
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	—
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	—
Slew Rate	0.62	0.04	0.04	0.04	0.6	V/µs
Gain Bandwidth Product	525	100	100	100	1000	kHz
Current - Input Bias	0.7	1	1	1	1	pA
Voltage - Input Offset	260	900	1100	1100	1100	µV
Current - Supply (x4 Channels)	570	10	10	10	150	µA
Current - Output / Channel	30	45	45	45	45	mA
Voltage - Supply Span (Min)	3	3	3	3	3	V
Voltage - Supply Span (Max)	16	16	16	16	16	V
Operating Temperature	0 to 70	-40 to 125	0 to 70	-40 to 125	-40 to 125	°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	—
Product Status	Active	Active	Active	Active	Active	—

Engineering Selection Recommendations

TS27L4AIDT (STMicroelectronics): This substitute part is qualified for applications where extended operating temperature range (-40°C to 125°C) is required beyond the TLC27M4BCDR specification (0°C to 70°C). The TS27L4AIDT maintains identical supply voltage span (3 V to 16 V), package configuration (14-SOIC), and RoHS3 compliance. The TS27L4AIDT exhibits lower slew rate (0.04 V/µs versus 0.62 V/µs) and reduced gain bandwidth product (100 kHz versus 525 kHz), making it suitable for applications not requiring high-speed performance. Supply current consumption is significantly reduced (10 µA versus 570 µA), benefiting low-power designs. Packaging is Tape & Reel (TR).

TS27L4CDT (STMicroelectronics): This substitute part operates within the same temperature range as the TLC27M4BCDR (0°C to 70°C) and maintains identical supply voltage span, package type, and compliance certifications. The TS27L4CDT provides substantially higher inventory availability (30,200 pieces) compared to the main part (2,233 pieces). Electrical characteristics mirror the TS27L4AIDT, with low slew rate and reduced bandwidth. Supply current is 10 µA per four channels. Packaging is Cut Tape (CT).

TS27L4IDT (STMicroelectronics): This substitute part extends the operating temperature range to -40°C to 125°C and maintains all package and compliance requirements. The TS27L4IDT provides inventory of 23,400 pieces. Electrical performance is identical to TS27L4AIDT and TS27L4CDT. Packaging is Cut Tape (CT) & Digi-Reel®.

TS27M4IDT (STMicroelectronics): This substitute part is qualified for applications requiring higher bandwidth and slew rate performance. The TS27M4IDT provides slew rate of 0.6 V/µs (approaching the TLC27M4BCDR at 0.62 V/µs) and gain bandwidth product of 1 MHz (exceeding the main part at 525 kHz). Operating temperature range extends to -40°C to 125°C. Supply current is 150 µA per four channels, higher than TS27L4 variants but lower than the main part. All package, compliance, and supply voltage specifications align with the TLC27M4BCDR. Inventory is 7,910 pieces. Packaging is Cut Tape (CT).

All substitute parts maintain Active product status and are RoHS3 compliant with MSL 1 (Unlimited) rating, ensuring long-term availability and environmental compliance.

Frequently Asked Questions (FAQ)

Q: Can TS27L4AIDT, TS27L4CDT, and TS27L4IDT be used interchangeably with TLC27M4BCDR in all applications?

A: These three parts share identical electrical performance characteristics (0.04 V/µs slew rate, 100 kHz gain bandwidth product, 10 µA supply current). They are mechanically and electrically compatible with the TLC27M4BCDR in applications where the lower slew rate and bandwidth are acceptable. The primary difference is operating temperature range: TS27L4AIDT and TS27L4IDT support -40°C to 125°C, while TS27L4CDT matches the TLC27M4BCDR at 0°C to 70°C. Selection depends on temperature requirements and packaging format (Tape & Reel, Cut Tape, or Digi-Reel®).

Q: When should TS27M4IDT be selected instead of other substitutes?

A: The TS27M4IDT is selected when the application requires higher bandwidth and slew rate performance. With 0.6 V/µs slew rate and 1 MHz gain bandwidth product, the TS27M4IDT approaches the performance envelope of the TLC27M4BCDR (0.62 V/µs and 525 kHz). The TS27M4IDT also provides extended operating temperature (-40°C to 125°C). Supply current consumption is 150 µA per four channels, which is higher than TS27L4 variants but remains lower than the main part at 570 µA.

Q: Are all substitute parts available in the same package as TLC27M4BCDR?

A: Yes. All substitute parts use the 14-SOIC (0.154", 3.90mm Width) surface mount package, ensuring direct mechanical compatibility with existing PCB layouts. Packaging format differs by supplier: TS27L4AIDT is supplied in Tape & Reel (TR), TS27L4CDT in Cut Tape (CT), TS27L4IDT in Cut Tape (CT) & Digi-Reel®, and TS27M4IDT in Cut Tape (CT). These packaging differences do not affect electrical or mechanical compatibility.

Q: Do all substitute parts meet the same compliance and environmental standards as TLC27M4BCDR?

A: Yes. All substitute parts are RoHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity rating, and maintain Active product status. REACH status is Unaffected for all parts, and ECCN classification is EAR99 for all parts. HTSUS code 8542.33.0001 applies uniformly across all parts.

Q: What is the impact of lower supply current in TS27L4 variants compared to TLC27M4BCDR?

A: The TS27L4 variants consume 10 µA per four channels, compared to 570 µA for the TLC27M4BCDR. This 57-fold reduction in supply current is beneficial for battery-powered and low-power applications. However, this reduction correlates with lower slew rate (0.04 V/µs versus 0.62 V/µs) and reduced gain bandwidth product (100 kHz versus 525 kHz). Applications requiring high-speed signal processing should not substitute TS27L4 variants for the main part.

Q: How do input offset voltage specifications differ among the parts?

A: The TLC27M4BCDR specifies 260 µV input offset voltage. All STMicroelectronics substitutes specify higher offset voltage: TS27L4AIDT at 900 µV, and TS27L4CDT, TS27L4IDT, and TS27M4IDT at 1.1 mV. Applications with stringent offset voltage requirements should evaluate this parameter against circuit design tolerances.

Q: What is the significance of the extended temperature range in TS27L4IDT and TS27M4IDT?

A: The TS27L4IDT and TS27M4IDT support operating temperatures from -40°C to 125°C, compared to 0°C to 70°C for the TLC27M4BCDR and TS27L4CDT. Extended temperature range is required for industrial, automotive, and harsh environment applications. Selection of extended-range parts ensures reliable operation across wider temperature extremes without performance degradation.

Q: Can output current per channel be used as a substitution criterion?

A: Output current per channel is not a primary substitution criterion in this case. The TLC27M4BCDR specifies 30 mA per channel, while all substitute parts specify 45 mA per channel. The higher output current capability of substitutes does not prevent substitution; it indicates enhanced drive capability. Applications requiring 30 mA output current are compatible with parts rated for 45 mA.

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