TS914ID Equivalent & Substitute Parts

Part Overview

The TS914ID is a CMOS linear amplifier integrated circuit manufactured by STMicroelectronics, configured as a 4-circuit rail-to-rail operational amplifier in a 14-SO surface mount package. This device is classified as Active product status and carries automotive-grade qualification (AEC-Q100), making it suitable for demanding industrial and automotive applications requiring low-power CMOS amplification.

Substitute parts are necessary when the TS914ID becomes unavailable due to supply constraints, when alternative packaging formats are required for manufacturing processes, or when design requirements necessitate different electrical performance characteristics within compatible parameter ranges.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	4	—
Output Type	Rail-to-Rail	—
Slew Rate	1	V/µs
Gain Bandwidth Product	1.4	MHz
Current - Input Bias	1	pA
Voltage - Input Offset	10	mV
Current - Supply	230	µA
Current - Output / Channel	60	mA
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	16	V
Operating Temperature Range	-40 to 125	°C
Grade	Automotive	—
Qualification	AEC-Q100	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TS914ID is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

Amplifier Type: CMOS technology preferred for low input bias current and low power consumption
Number of Circuits: 4 independent amplifier channels required
Output Type: Rail-to-Rail output capability
Slew Rate: Minimum 1 V/µs
Gain Bandwidth Product: Minimum 1.4 MHz
Supply Voltage Range: Overlap with 2.7 V to 16 V span
Operating Temperature: Support for -40°C to 125°C range preferred for automotive applications

Mechanical Compatibility Criteria:

Package Type: 14-pin surface mount configuration (14-SOIC or 14-TSSOP)
Mounting Type: Surface mount technology
Pin Count: 14 pins

Compliance Criteria:

RoHS3 Compliance: Required
Moisture Sensitivity Level: MSL 1 preferred
Automotive Grade / AEC-Q100: Preferred for automotive applications

Substitute parts are grouped into two categories: direct packaging variants of the same base product (TS914IDT) and functionally equivalent alternatives from other manufacturers that meet or exceed the electrical specifications while maintaining mechanical compatibility.

Parameter Comparison

Parameter	TS914ID	TS914IDT	AD8644ARZ-REEL7	LMC6494AEM/NOPB	LMC6494BEM/NOPB	LMC660CM/NOPB	LMC660CMX/NOPB	MC33204DTBR2G
Manufacturer	STMicroelectronics	STMicroelectronics	Analog Devices Inc.	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	onsemi
Amplifier Type	CMOS	CMOS	General Purpose	CMOS	CMOS	CMOS	CMOS	General Purpose
Number of Circuits	4	4	4	4	4	4	4	4
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Push-Pull, Rail-to-Rail	Push-Pull, Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	1	1	7.5	1.3	1.3	1.1	1.1	1
Gain Bandwidth Product (MHz)	1.4	1.4	5.5	1.5	1.5	1.4	1.4	2.2
Current - Input Bias (pA)	1	1	80 nA	0.15	0.15	0.002	0.002	80 nA
Voltage - Input Offset (mV)	10	10	1	0.11	0.11	1	1	10
Current - Supply (µA)	230	230	800 (x4)	2600 (x4)	2600 (x4)	1500 (x4)	1500 (x4)	900 (x4)
Current - Output / Channel (mA)	60	60	70	30	30	40	40	80
Voltage - Supply Span Min (V)	2.7	2.7	5	2.5	2.5	4.75	4.75	1.8
Voltage - Supply Span Max (V)	16	16	18	15.5	15.5	15.5	15.5	12
Operating Temperature (°C)	-40 to 125	-40 to 125	-20 to 85	-40 to 125	-40 to 125	0 to 70	0 to 70	-40 to 105
Grade	Automotive	Automotive	—	—	—	—	—	—
Qualification	AEC-Q100	AEC-Q100	—	—	—	—	—	—
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-TSSOP
Product Status	Active	Active	Active	Obsolete	Obsolete	Last Time Buy	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging Format	Tube	Cut Tape & Digi-Reel	Tape & Reel	Tube	Tube	Tube	Cut Tape & Digi-Reel	Cut Tape
Inventory (Pcs)	16236	37102	3900	1354	2051	1294	17800	5154

Engineering Selection Recommendations

Primary Substitute: TS914IDT

The TS914IDT is the direct equivalent of the TS914ID, differing only in packaging format (Cut Tape & Digi-Reel versus Tube). This part maintains identical electrical specifications, automotive-grade qualification (AEC-Q100), and active product status. Selection of TS914IDT is appropriate when tape-and-reel packaging is required for automated assembly processes. Higher inventory availability (37,102 units) supports consistent supply.

Secondary Substitutes: LMC660CMX/NOPB

The LMC660CMX/NOPB from Texas Instruments is an active product offering CMOS amplifier technology with 4 circuits in 14-SOIC package. This part meets the core electrical requirements with slew rate of 1.1 V/µs and gain bandwidth product of 1.4 MHz. The supply voltage range (4.75 V to 15.5 V) overlaps with the TS914ID specification. Operating temperature range is limited to 0°C to 70°C, which does not support the full automotive temperature range (-40°C to 125°C) of the TS914ID. This part is suitable for applications not requiring extended low-temperature operation. Inventory availability is high (17,800 units).

Tertiary Substitutes: MC33204DTBR2G

The MC33204DTBR2G from onsemi is a general-purpose 4-circuit amplifier in 14-TSSOP package with active product status. This part provides slew rate of 1 V/µs and gain bandwidth product of 2.2 MHz, exceeding the TS914ID baseline. The supply voltage range (1.8 V to 12 V) is narrower than the TS914ID. Operating temperature range extends to -40°C to 105°C, supporting automotive temperature requirements. Package format (14-TSSOP) differs from the TS914ID (14-SOIC), requiring PCB layout modification. This part is suitable when higher bandwidth performance is required and package footprint change is acceptable.

Not Recommended: LMC6494AEM/NOPB and LMC6494BEM/NOPB

Both LMC6494 variants from Texas Instruments carry obsolete product status, making them unsuitable for new designs or long-term supply assurance. These parts should not be selected for applications requiring sustained component availability.

Not Recommended: LMC660CM/NOPB

The LMC660CM/NOPB carries Last Time Buy status, indicating end-of-life phase-out. This part is not suitable for new designs or applications requiring long-term supply continuity.

Not Recommended: AD8644ARZ-REEL7

The AD8644ARZ-REEL7 from Analog Devices Inc. does not carry automotive-grade qualification or AEC-Q100 certification. Operating temperature range (-20°C to 85°C) does not support the full automotive temperature specification of the TS914ID. This part is unsuitable for automotive applications requiring AEC-Q100 compliance.

Frequently Asked Questions (FAQ)

Q: Can TS914IDT be used as a direct replacement for TS914ID?

A: Yes. The TS914IDT is electrically and functionally identical to the TS914ID. The only difference is packaging format: TS914IDT is supplied in Cut Tape & Digi-Reel format, while TS914ID is supplied in Tube format. Both parts are manufactured by STMicroelectronics, carry AEC-Q100 automotive qualification, and maintain identical electrical specifications. Selection depends on manufacturing process requirements (automated tape-and-reel assembly versus manual tube handling).

Q: What is the key difference between CMOS and General Purpose amplifier types in the substitute list?

A: CMOS amplifiers (TS914ID, TS914IDT, LMC6494, LMC660 series) feature extremely low input bias current (measured in picoamperes) and low power consumption, making them suitable for high-impedance signal sources and battery-powered applications. General Purpose amplifiers (AD8644ARZ-REEL7, MC33204DTBR2G) have higher input bias current (measured in nanoamperes) but often provide higher slew rate and bandwidth. For the TS914ID application, CMOS substitutes are preferred unless higher bandwidth is specifically required.

Q: Why does the LMC660CMX/NOPB have a narrower operating temperature range than the TS914ID?

A: The LMC660CMX/NOPB is specified for 0°C to 70°C operation, which does not include the extended low-temperature range (-40°C) required for automotive applications. This part is suitable only for applications operating within the 0°C to 70°C window. For automotive applications requiring -40°C operation, the TS914ID or TS914IDT must be selected.

Q: Is the MC33204DTBR2G package (14-TSSOP) compatible with TS914ID PCB layouts (14-SOIC)?

A: No. The 14-TSSOP package has different pin spacing and footprint dimensions (0.173" width, 4.40mm) compared to the 14-SOIC package (0.154" width, 3.90mm). PCB layout modification is required to accommodate the MC33204DTBR2G. Pin-to-pin electrical compatibility exists, but physical board redesign is necessary.

Q: What does AEC-Q100 qualification mean for automotive applications?

A: AEC-Q100 is the Automotive Electronics Council qualification standard for integrated circuits used in automotive applications. It certifies that the component meets stringent reliability, temperature cycling, and quality requirements for automotive environments. The TS914ID and TS914IDT carry AEC-Q100 certification, making them suitable for automotive-grade designs. Substitute parts without AEC-Q100 certification should not be used in automotive applications requiring this qualification.

Q: Can I use LMC6494AEM/NOPB or LMC6494BEM/NOPB as substitutes?

A: No. Both LMC6494 variants carry obsolete product status, indicating they are no longer manufactured and are being phased out. Using obsolete components in new designs creates supply chain risk and is not recommended for production applications. Active alternatives such as LMC660CMX/NOPB or TS914IDT should be selected instead.

Q: What is the significance of the "Push-Pull" output type in LMC660 series parts?

A: Push-Pull output configuration indicates the amplifier output stage can both source and sink current symmetrically, providing enhanced output drive capability. The TS914ID specifies Rail-to-Rail output, which is a related but distinct specification indicating the output voltage can swing to the positive and negative supply rails. Both configurations are compatible for most applications, but push-pull output may provide improved performance in high-current output applications.

Q: Why is inventory quantity listed for each part?

A: Inventory quantity indicates current stock availability from the supplier. Higher inventory (such as TS914IDT with 37,102 units or LMC660CMX/NOPB with 17,800 units) provides greater supply assurance and shorter lead times. Lower inventory (such as AD8644ARZ-REEL7 with 3,900 units) may indicate supply constraints or reduced demand. Inventory levels should be considered when selecting substitutes for long-term production requirements.

Q: Are all listed substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed in this reference carry ROHS3 Compliant status, meeting the Restriction of Hazardous Substances Directive requirements. All parts also carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling precautions are required during storage or assembly.

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