TLC277ID CMOS Amplifier 2 Circuit 8-SOIC Equivalent & Substitute Parts

Part Overview

The TLC277ID is a CMOS amplifier integrated circuit manufactured by Texas Instruments, configured as a dual-channel operational amplifier in an 8-SOIC surface mount package. This device operates across a 4V to 16V supply range with a slew rate of 5.3V/µs and gain bandwidth product of 2.2 MHz. The TLC277ID is designated as Last Time Buy status, indicating discontinued production. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	2	—
Slew Rate	5.3	V/µs
Gain Bandwidth Product	2.2	MHz
Current - Input Bias	0.7	pA
Voltage - Input Offset	900	µV
Current - Supply (x2 Channels)	1.4	mA
Current - Output / Channel	30	mA
Voltage - Supply Span (Min)	4	V
Voltage - Supply Span (Max)	16	V
Operating Temperature	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the TLC277ID are evaluated based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

Amplifier Type: CMOS technology
Number of Circuits: Dual-channel (2 circuits)
Package / Case: 8-SOIC form factor with 0.154" (3.90mm) width
Mounting Type: Surface Mount
Supply Voltage Range: Minimum 4V to maximum 16V overlap
Operating Temperature Range: Compatibility with -40°C to 85°C specification

Performance Parameters for Substitution:

Slew Rate: 5.3V/µs (baseline; higher values acceptable)
Gain Bandwidth Product: 2.2 MHz (baseline; higher values acceptable)
Current - Input Bias: 0.7 pA (baseline; lower values acceptable)
Voltage - Input Offset: 900 µV (baseline; lower values acceptable)
Current - Supply: 1.4mA per dual channels (baseline; lower values acceptable)
Current - Output / Channel: 30 mA (baseline; higher values acceptable)

Substitute parts are grouped into two categories: Direct Manufacturer Substitutes (Texas Instruments TLC277IDR) and Cross-Manufacturer Alternatives (STMicroelectronics TS272 and TS27L2 series). Cross-manufacturer alternatives must maintain identical package geometry, pin configuration, and electrical performance within the specified operating envelope.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (µV)	Supply Current (mA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package	Status
TLC277ID	Texas Instruments	CMOS	5.3	2.2	0.7	900	1.4	30	4	16	-40 to 85	8-SOIC	Last Time Buy
TLC277IDR	Texas Instruments	CMOS	5.3	2.2	0.7	900	1.4	30	4	16	-40 to 85	8-SOIC	Active
TS272ACDT	STMicroelectronics	CMOS	5.5	3.5	1	900	1	45	3	16	0 to 70	8-SOIC	Active
TS272AIDT	STMicroelectronics	CMOS	5.5	3.5	1	900	1	45	3	16	-40 to 125	8-SOIC	Active
TS272BIDT	STMicroelectronics	CMOS	5.5	3.5	1	250	1	45	3	16	-40 to 125	8-SOIC	Active
TS272CDT	STMicroelectronics	CMOS	5.5	3.5	1	1100	1	45	3	16	0 to 70	8-SOIC	Active
TS272IDT	STMicroelectronics	CMOS	5.5	3.5	1	1100	1	45	3	16	-40 to 125	8-SOIC	Active
TS27L2ACDT	STMicroelectronics	CMOS	0.04	0.1	1	900	0.01	45	3	16	0 to 70	8-SOIC	Active
TS27L2AIDT	STMicroelectronics	CMOS	0.04	0.1	1	1100	0.01	45	3	16	-40 to 125	8-SOIC	Active
TS27L2BIDT	STMicroelectronics	CMOS	0.04	0.1	1	250	0.01	45	3	16	-40 to 125	8-SOIC	Active

Engineering Selection Recommendations

Primary Substitute: TLC277IDR

The TLC277IDR is the direct manufacturer substitute for the TLC277ID. Both devices are manufactured by Texas Instruments and share identical electrical specifications, including slew rate (5.3V/µs), gain bandwidth product (2.2 MHz), input bias current (0.7 pA), input offset voltage (900 µV), supply current (1.4 mA), output current (30 mA), and operating temperature range (-40°C to 85°C). The TLC277IDR is currently in Active product status, ensuring ongoing availability and supply chain support. The only difference is packaging format: TLC277IDR is supplied in Cut Tape (CT) & Digi-Reel® format, whereas TLC277ID is supplied in Tube format. Both maintain ROHS3 compliance and MSL Level 1 rating. This substitute is recommended for direct replacement without design modification.

Secondary Substitutes: STMicroelectronics TS272 Series

The TS272 series (TS272ACDT, TS272AIDT, TS272BIDT, TS272CDT, TS272IDT) from STMicroelectronics provides cross-manufacturer alternatives. These devices maintain CMOS amplifier architecture with dual circuits in 8-SOIC packages. The TS272 series offers improved performance characteristics: slew rate of 5.5V/µs (versus 5.3V/µs), higher gain bandwidth product of 3.5 MHz (versus 2.2 MHz), lower input bias current of 1 pA (versus 0.7 pA), and higher output current of 45 mA (versus 30 mA). Supply current is reduced to 1 mA per dual channels (versus 1.4 mA). The minimum supply voltage is 3V (versus 4V), providing broader low-voltage compatibility. All TS272 variants are in Active product status. Selection among TS272 variants depends on operating temperature requirements and input offset voltage specifications. TS272ACDT and TS272CDT support 0°C to 70°C operation, while TS272AIDT and TS272IDT support extended -40°C to 125°C operation. Input offset voltage variants include 900 µV (TS272ACDT, TS272AIDT), 250 µV (TS272BIDT), and 1.1 mV (TS272CDT, TS272IDT).

Tertiary Substitutes: STMicroelectronics TS27L2 Series

The TS27L2 series (TS27L2ACDT, TS27L2AIDT, TS27L2BIDT) represents low-power alternatives with significantly reduced slew rate (0.04V/µs) and gain bandwidth product (100 kHz). These devices are suitable only for applications where bandwidth requirements are substantially lower than the TLC277ID specification. Supply current is reduced to 10 µA per dual channels. TS27L2 variants are not recommended as direct substitutes for TLC277ID applications requiring the specified 2.2 MHz bandwidth performance.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols. REACH status is Unaffected for all parts. ECCN classification is EAR99 for all devices.

Frequently Asked Questions (FAQ)

Q1: Can TLC277IDR be used as a direct replacement for TLC277ID without PCB modification?

A: Yes. The TLC277IDR is electrically and mechanically identical to the TLC277ID. Both devices use the 8-SOIC package with identical pin configuration and electrical specifications. The only difference is packaging format (Cut Tape & Digi-Reel® versus Tube). No PCB modification is required. Verify that your assembly process can accommodate the different packaging format.

Q2: What are the key differences between TLC277ID and TS272 series substitutes?

A: The TS272 series offers improved performance: higher slew rate (5.5V/µs versus 5.3V/µs), higher gain bandwidth product (3.5 MHz versus 2.2 MHz), lower supply current (1 mA versus 1.4 mA), and higher output current capability (45 mA versus 30 mA). The TS272 series also supports lower minimum supply voltage (3V versus 4V). All TS272 variants are in Active product status. These improvements make TS272 suitable for applications requiring higher bandwidth or lower power consumption. Verify that your application can tolerate the different input offset voltage specifications available in TS272 variants.

Q3: Can TS27L2 series parts replace TLC277ID?

A: TS27L2 series parts are not recommended as direct replacements for TLC277ID. The TS27L2 series has significantly reduced bandwidth (100 kHz gain bandwidth product versus 2.2 MHz) and slew rate (0.04V/µs versus 5.3V/µs). These devices are designed for low-power, low-bandwidth applications. Use TS27L2 only if your application requirements are substantially different from the original TLC277ID specification.

Q4: What operating temperature range should I select when choosing between TS272 variants?

A: TS272ACDT and TS272CDT support 0°C to 70°C operation. TS272AIDT and TS272BIDT support extended -40°C to 125°C operation. If your application requires operation below 0°C or above 70°C, select TS272AIDT or TS272BIDT. The TLC277ID supports -40°C to 85°C, which overlaps with the 0°C to 70°C range of TS272ACDT/TS272CDT but does not extend to the full 125°C upper limit of TS272AIDT/TS272BIDT.

Q5: How do input offset voltage specifications differ among substitute parts?

A: Input offset voltage varies by part number. TLC277ID specifies 900 µV. TS272ACDT and TS272AIDT specify 900 µV. TS272BIDT specifies 250 µV (improved precision). TS272CDT and TS272IDT specify 1.1 mV. TS27L2ACDT specifies 900 µV. TS27L2AIDT and TS27L2BIDT specify 1.1 mV and 250 µV respectively. Select the variant matching your application's offset voltage tolerance requirements.

Q6: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (TLC277IDR, TS272 series, and TS27L2 series) are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating. All parts have Unaffected REACH status and EAR99 ECCN classification.

Q7: What is the difference between Cut Tape & Digi-Reel® and Tube packaging?

A: Cut Tape & Digi-Reel® packaging is supplied on continuous tape suitable for automated pick-and-place assembly equipment. Tube packaging is supplied in plastic tubes for manual handling or older assembly processes. Both formats contain the same component. Verify your assembly process compatibility before selecting packaging format.

Q8: Which substitute offers the best supply availability?

A: TS272CDT has the highest inventory (17,007 pcs), followed by TS272IDT (21,553 pcs). TLC277IDR has 1,649 pcs available. TS272ACDT has 25,400 pcs available. Verify current inventory with your supplier, as stock levels change continuously.

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