TLC27L4CPWRG4 CMOS Amplifier Equivalent & Substitute Parts

Part Overview

The TLC27L4CPWRG4 is a CMOS amplifier integrated circuit containing four independent operational amplifier circuits in a 14-TSSOP surface mount package. Manufactured by Texas Instruments under the LinCMOS™ series, this device is classified as obsolete product status. The TLC27L4CPWRG4 operates across a wide supply voltage range of 3V to 16V and is suitable for low-power analog signal processing applications requiring CMOS technology characteristics.

Due to its obsolete product status, identifying equivalent and substitute parts is necessary for design continuity, procurement planning, and system reliability. Active alternative components from both Texas Instruments and STMicroelectronics provide functional equivalence with varying performance characteristics and extended temperature operating ranges.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	TLC27L4CPWRG4	—
Manufacturer	Texas Instruments	—
Category	Linear, Amplifiers	—
Amplifier Type	CMOS	—
Number of Circuits	4	—
Package / Case	14-TSSOP (0.173", 4.40mm Width)	—
Mounting Type	Surface Mount	—
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°C ~ 70°C	—
Product Status	Obsolete	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution logic for the TLC27L4CPWRG4 is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

Package type: 14-TSSOP surface mount configuration
Number of circuits: 4 independent amplifier channels
Supply voltage range: 3V to 16V minimum compatibility
Amplifier type: CMOS technology
Mounting compatibility: Surface mount

Secondary Performance Parameters:

Slew rate tolerance
Gain bandwidth product
Input bias current characteristics
Input offset voltage specifications
Supply current consumption
Output current capability per channel
Operating temperature range

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

Category A - Direct Performance Match: Parts maintaining identical or near-identical electrical specifications to the TLC27L4CPWRG4, including slew rate (0.05V/µs) and gain bandwidth product (110 kHz).

Category B - Enhanced Performance Variants: Parts offering improved electrical characteristics such as lower supply current consumption, higher output current capability, or extended temperature operating ranges, while maintaining package and circuit count compatibility.

Parameter Comparison

Parameter	TLC27L4CPWRG4	TLC27L4CPWR	TS27L4ACPT	TS27L4AIPT	TS27L4CPT	TS27L4IPT	TS27M4CPT
Manufacturer	Texas Instruments	Texas Instruments	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
Package / Case	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP
Number of Circuits	4	4	4	4	4	4	4
Amplifier Type	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Slew Rate (V/µs)	0.05	0.05	0.04	0.04	0.04	0.04	0.6
Gain Bandwidth Product (kHz)	110	110	100	100	100	100	1000
Current - Input Bias (pA)	0.7	0.7	1	1	1	1	1
Voltage - Input Offset (mV)	1.1	1.1	0.9	0.9	1.1	1.1	1.1
Current - Supply (µA, x4 Channels)	57	57	10	10	10	10	150
Current - Output / Channel (mA)	30	30	45	45	45	45	45
Voltage - Supply Span (V)	3 to 16	3 to 16	3 to 16	3 to 16	3 to 16	3 to 16	3 to 16
Operating Temperature (°C)	0 to 70	0 to 70	0 to 70	-40 to 125	0 to 70	-40 to 125	0 to 70
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

TLC27L4CPWR (Texas Instruments)

The TLC27L4CPWR is the direct active equivalent to the obsolete TLC27L4CPWRG4. This part maintains identical electrical specifications including slew rate (0.05V/µs), gain bandwidth product (110 kHz), input bias current (0.7 pA), and output current capability (30 mA per channel). The primary distinction is product status: TLC27L4CPWR holds active status with ROHS3 compliance and MSL 1 rating. Packaging differs only in format designation (Tape & Reel versus standard reel configuration). This part is the preferred primary substitute for direct replacement applications.

TS27L4ACPT (STMicroelectronics)

The TS27L4ACPT provides functional substitution with performance enhancements in specific parameters. Supply current consumption is reduced to 10µA (x4 channels) compared to 57µA in the original part, representing an 82% reduction in quiescent current. Output current capability increases to 45 mA per channel. Input offset voltage improves to 900µV. Operating temperature remains 0°C to 70°C. This part is suitable for applications prioritizing low power consumption within the standard commercial temperature range.

TS27L4AIPT (STMicroelectronics)

The TS27L4AIPT offers identical electrical performance to TS27L4ACPT with extended operating temperature range of -40°C to 125°C. Supply current consumption is 10µA (x4 channels), and output current is 45 mA per channel. This part is appropriate for applications requiring industrial or extended temperature operation while maintaining low power characteristics.

TS27L4CPT (STMicroelectronics)

The TS27L4CPT provides performance characteristics matching TS27L4ACPT and TS27L4AIPT with supply current of 10µA and output current of 45 mA per channel. Operating temperature is limited to 0°C to 70°C. Input offset voltage is 1.1 mV, matching the original part specification. This variant is suitable for standard commercial temperature applications with low power requirements.

TS27L4IPT (STMicroelectronics)

The TS27L4IPT is functionally equivalent to TS27L4CPT with extended operating temperature range of -40°C to 125°C. Supply current consumption is 10µA (x4 channels), and output current is 45 mA per channel. This part offers the highest inventory availability (35,400 units) among substitute options. Selection is appropriate for industrial temperature applications with low power consumption requirements.

TS27M4CPT (STMicroelectronics)

The TS27M4CPT represents a higher-performance variant with significantly enhanced bandwidth characteristics. Slew rate increases to 0.6V/µs (12x improvement), and gain bandwidth product increases to 1 MHz (9x improvement). Supply current consumption increases to 150µA (x4 channels). Output current capability is 45 mA per channel. Operating temperature is 0°C to 70°C. This part is suitable only for applications requiring higher frequency response and faster signal processing, where the increased power consumption is acceptable.

Compliance and Regulatory Status

All substitute parts maintain ROHS3 compliance and MSL 1 (unlimited moisture sensitivity) ratings, ensuring compatibility with modern manufacturing and environmental standards. All parts carry EAR99 export classification and are REACH unaffected.

Frequently Asked Questions (FAQ)

Q1: Can TLC27L4CPWR directly replace TLC27L4CPWRG4 in existing designs?

Yes. TLC27L4CPWR maintains identical electrical specifications including slew rate (0.05V/µs), gain bandwidth product (110 kHz), input bias current (0.7 pA), and output current (30 mA per channel). Both operate across 3V to 16V supply range and use identical 14-TSSOP packaging. The primary difference is product status: TLC27L4CPWR is active while TLC27L4CPWRG4 is obsolete. Packaging format differs (Tape & Reel designation), but this does not affect electrical compatibility.

Q2: What are the key differences between Texas Instruments and STMicroelectronics substitute options?

Texas Instruments TLC27L4CPWR maintains exact electrical specifications of the original part. STMicroelectronics TS27L4 series parts offer reduced supply current consumption (10µA versus 57µA), increased output current capability (45 mA versus 30 mA per channel), and extended temperature variants. TS27M4CPT provides significantly higher bandwidth (1 MHz versus 110 kHz) at the cost of increased power consumption (150µA).

Q3: Which substitute part should be selected for low-power applications?

TS27L4ACPT, TS27L4CPT, TS27L4AIPT, or TS27L4IPT are appropriate for low-power applications. All four parts consume 10µA (x4 channels) compared to 57µA in the original part. Selection between these four depends on operating temperature requirements: TS27L4ACPT and TS27L4CPT for 0°C to 70°C; TS27L4AIPT and TS27L4IPT for -40°C to 125°C.

Q4: Are all substitute parts compatible with the 14-TSSOP package footprint?

Yes. All substitute parts use identical 14-TSSOP (0.173", 4.40mm width) surface mount packaging. PCB footprints are directly compatible without modification. All parts are surface mount devices with identical pin configurations for four-circuit CMOS amplifier topology.

Q5: What is the significance of the extended temperature range variants?

TS27L4AIPT and TS27L4IPT operate across -40°C to 125°C, compared to 0°C to 70°C for other variants. Extended temperature range is required for industrial, automotive, or harsh environment applications. These parts maintain identical electrical performance to their standard temperature counterparts while supporting wider operating conditions.

Q6: When should TS27M4CPT be selected instead of other substitutes?

TS27M4CPT should be selected only when application requirements demand higher frequency response. This part provides 1 MHz gain bandwidth product (versus 110 kHz in original) and 0.6V/µs slew rate (versus 0.05V/µs). The trade-off is increased supply current consumption (150µA versus 57µA in original). Selection is appropriate for high-speed signal processing applications where bandwidth is the limiting design factor.

Q7: Do all substitute parts maintain RoHS3 compliance?

Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating. All parts are REACH unaffected and carry EAR99 export classification, ensuring compatibility with modern environmental and regulatory requirements.

Q8: What inventory considerations exist for substitute part selection?

TLC27L4CPWR (6,787 units) and TS27L4IPT (35,400 units) offer the highest inventory availability. TS27L4ACPT (968 units) and TS27L4CPT (1,108 units) have lower availability. TS27M4CPT (2,900 units) and TS27L4AIPT (6,561 units) offer moderate availability. Inventory levels should be considered for long-term procurement planning and supply chain continuity.

Q9: Are there electrical performance trade-offs when substituting from TLC27L4CPWRG4 to STMicroelectronics parts?

Yes. STMicroelectronics TS27L4 series parts reduce input bias current specification from 0.7 pA to 1 pA and reduce input offset voltage from 1.1 mV to 900 µV (TS27L4ACPT and TS27L4AIPT only). Slew rate decreases from 0.05V/µs to 0.04V/µs. Gain bandwidth product decreases from 110 kHz to 100 kHz. These changes represent minor performance variations within typical application tolerances but should be evaluated against specific circuit requirements.

Q10: Can substitute parts be mixed within a single design?

Mixing substitute parts within a single design is not recommended. While all parts are functionally compatible at the package level, electrical performance variations between parts may introduce circuit behavior inconsistencies. Designs should standardize on a single substitute part number to ensure predictable performance across all amplifier channels and multiple units.

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