TLC27L2MDR Equivalent & Substitute Parts

Part Overview

The TLC27L2MDR 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 is classified as obsolete product status. The TLC27L2MDR operates across a wide supply voltage range of 4V to 16V and is designed for low-power CMOS applications with extremely low input bias current specifications.

Due to its obsolete status, identifying functionally equivalent substitute parts is necessary for design continuity, production support, and long-term component availability. Active alternatives from STMicroelectronics and Texas Instruments provide comparable or enhanced performance characteristics while maintaining package compatibility and electrical functionality.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS
Number of Circuits	2
Slew Rate	0.03	V/µs
Gain Bandwidth Product	110	kHz
Current - Input Bias	0.6	pA
Voltage - Input Offset	1.1	mV
Current - Supply (per channel)	20	µA
Current - Output / Channel	30	mA
Voltage - Supply Span (Min)	4	V
Voltage - Supply Span (Max)	16	V
Operating Temperature Range	-55 to 125	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitute parts for the TLC27L2MDR are selected based on strict electrical and mechanical compatibility criteria. The following parameters determine substitution validity:

Primary Compatibility Criteria:

Amplifier Type: CMOS configuration
Number of Circuits: Dual-channel (2 circuits)
Package / Case: 8-SOIC form factor (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Voltage - Supply Span: Minimum 4V to Maximum 16V overlap
Current - Output / Channel: Minimum 30 mA capability

Secondary Performance Parameters:

Slew Rate: 0.03 V/µs to 0.6 V/µs range
Gain Bandwidth Product: 100 kHz to 1 MHz range
Current - Input Bias: 1 pA or lower
Voltage - Input Offset: 250 µV to 1.1 mV range
Operating Temperature: Overlap with -55°C to 125°C range

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

Category A - Low-Speed CMOS Amplifiers (100 kHz GBW): TS27L2ACDT, TS27L2AIDT, TS27L2BIDT, TS27L2CD, TS27L2CDT, TS27L2IDT

Category B - High-Speed CMOS Amplifiers (1 MHz GBW): TS27M2BIDT, TS27M2CDT, TS27M2IDT, LM432MA/NOPB

All substitute parts maintain 8-SOIC package compatibility and surface mount configuration. STMicroelectronics TS27 series parts carry active product status with RoHS3 compliance, while the LM432MA/NOPB remains obsolete but offers general-purpose amplifier characteristics.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (kHz)	Input Bias (pA)	Input Offset (mV)	Supply Current (µA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Status	RoHS
TLC27L2MDR	Texas Instruments	CMOS	0.03	110	0.6	1.1	20	30	4	16	-55 to 125	Obsolete	Non-compliant
TS27L2ACDT	STMicroelectronics	CMOS	0.04	100	1	0.9	10	45	3	16	0 to 70	Active	RoHS3
TS27L2AIDT	STMicroelectronics	CMOS	0.04	100	1	1.1	10	45	3	16	-40 to 125	Active	RoHS3
TS27L2BIDT	STMicroelectronics	CMOS	0.04	100	1	0.25	10	45	3	16	-40 to 125	Active	RoHS3
TS27L2CD	STMicroelectronics	CMOS	0.04	100	1	1.1	10	45	3	16	0 to 70	Active	RoHS3
TS27L2CDT	STMicroelectronics	CMOS	0.04	100	1	1.1	10	45	3	16	0 to 70	Active	RoHS3
TS27L2IDT	STMicroelectronics	CMOS	0.04	100	1	1.1	10	45	3	16	-40 to 125	Active	RoHS3
TS27M2BIDT	STMicroelectronics	CMOS	0.6	1000	1	0.25	150	45	3	16	-40 to 125	Active	RoHS3
TS27M2CDT	STMicroelectronics	CMOS	0.6	1000	1	1.1	150	45	3	16	0 to 70	Active	RoHS3
TS27M2IDT	STMicroelectronics	CMOS	0.6	1000	1	1.1	150	45	3	16	-40 to 125	Active	RoHS3
LM432MA/NOPB	Texas Instruments	General Purpose		1000	3	0.6	150	30	2.5	16	-40 to 85	Obsolete	RoHS3

Engineering Selection Recommendations

For Direct Replacement with Extended Temperature Range:

TS27L2AIDT and TS27L2IDT are recommended for applications requiring the full -40°C to 125°C operating temperature range. Both parts maintain CMOS amplifier type, dual-channel configuration, and 8-SOIC package compatibility. TS27L2IDT carries active product status with RoHS3 compliance and provides 55,731 units in current inventory, ensuring long-term availability. Supply voltage compatibility spans 3V to 16V, exceeding the original 4V to 16V specification.

For Low-Power Supply Current Applications:

TS27L2BIDT offers the lowest input offset voltage (250 µV) among low-speed alternatives while maintaining 10 µA supply current per channel. This part is suitable for precision measurement applications where offset voltage minimization is critical. Active product status and RoHS3 compliance support modern manufacturing requirements.

For High-Speed Applications:

TS27M2IDT provides 1 MHz gain bandwidth product with 0.6 V/µs slew rate, representing a performance upgrade from the original 110 kHz specification. This part accommodates applications requiring faster signal processing while maintaining CMOS architecture and dual-channel configuration. Extended temperature range (-40°C to 125°C) and active product status ensure design flexibility.

For Commercial Temperature Range Applications:

TS27L2CD and TS27L2CDT are suitable for 0°C to 70°C operating environments. Both parts offer tube and cut tape packaging options respectively, with 10,100 and 55,731 units in inventory. These alternatives provide cost-effective solutions for non-extended temperature applications.

Compliance Considerations:

All STMicroelectronics TS27 series substitutes carry RoHS3 compliance, addressing regulatory requirements absent in the original TLC27L2MDR. LM432MA/NOPB also provides RoHS3 compliance but remains obsolete product status.

Frequently Asked Questions (FAQ)

Q: Can TS27L2CDT directly replace TLC27L2MDR in existing designs?

A: TS27L2CDT maintains electrical and mechanical compatibility within specified parameters. Both devices feature CMOS dual-channel amplifier configuration in 8-SOIC packages. However, TS27L2CDT operates across 0°C to 70°C temperature range, which does not cover the original -55°C to 125°C specification. For applications requiring full temperature range coverage, TS27L2IDT or TS27L2AIDT are appropriate selections.

Q: What is the difference between TS27L2 and TS27M2 series?

A: The TS27L2 series provides 100 kHz gain bandwidth product with 0.04 V/µs slew rate and 10 µA supply current per channel. The TS27M2 series offers enhanced performance with 1 MHz gain bandwidth product, 0.6 V/µs slew rate, and 150 µA supply current per channel. Selection depends on application bandwidth requirements and power consumption constraints.

Q: Are packaging variants (Tube, Cut Tape, Tape & Reel) electrically equivalent?

A: Yes. Packaging variants such as TS27L2CD (Tube), TS27L2CDT (Cut Tape), and TS27L2IDT (Tape & Reel) contain identical die and electrical specifications. Packaging differences address supply chain and assembly process requirements only. Electrical performance and pin configuration remain identical across all packaging options.

Q: Does TS27L2BIDT offer advantages over TS27L2AIDT?

A: TS27L2BIDT features lower input offset voltage (250 µV versus 1.1 mV) and identical supply current specifications. Both parts support -40°C to 125°C temperature range and carry active product status. TS27L2BIDT is preferred for precision analog applications where input offset voltage minimization is critical. TS27L2AIDT provides equivalent performance for general-purpose applications.

Q: What supply voltage range is compatible with substitute parts?

A: All substitute parts operate across 3V to 16V supply range, which encompasses the original TLC27L2MDR specification of 4V to 16V. Designs operating at 3V to 4V supply voltage benefit from the extended lower limit provided by STMicroelectronics alternatives.

Q: Is LM432MA/NOPB suitable as a substitute?

A: LM432MA/NOPB is a general-purpose amplifier with 1 MHz gain bandwidth product and RoHS3 compliance. While it maintains 8-SOIC package compatibility and dual-channel configuration, it operates across -40°C to 85°C temperature range, which does not cover the original -55°C specification. Additionally, LM432MA/NOPB carries obsolete product status. STMicroelectronics TS27 series alternatives are preferred for new designs.

Q: How does supply current affect design power consumption?

A: TLC27L2MDR draws 20 µA per channel (40 µA total). TS27L2 series alternatives draw 10 µA per channel (20 µA total), reducing power consumption by 50%. TS27M2 series draws 150 µA per channel (300 µA total), increasing power consumption for enhanced bandwidth performance. Selection depends on power budget and bandwidth requirements.

Q: Are all substitute parts RoHS compliant?

A: All STMicroelectronics TS27 series parts carry RoHS3 compliance. The original TLC27L2MDR is RoHS non-compliant. LM432MA/NOPB provides RoHS3 compliance. For applications requiring RoHS compliance, STMicroelectronics alternatives are mandatory selections.

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