TS954ID Equivalent & Substitute Parts

Part Overview

The TS954ID is a general-purpose operational amplifier manufactured by STMicroelectronics, featuring four independent circuits in a 14-SOIC surface-mount package. This device is classified as obsolete, which necessitates identification of active equivalent and substitute components for ongoing design support and procurement. The TS954ID operates across a supply voltage range of 2.7 V to 12 V with rail-to-rail output capability, making it suitable for low-voltage applications requiring multiple amplifier stages in a compact form factor.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	TS954ID	—
Manufacturer	STMicroelectronics	—
Number of Circuits	4	—
Amplifier Type	General Purpose	—
Output Type	Rail-to-Rail	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	12	V
Slew Rate	1	V/µs
Gain Bandwidth Product	3	MHz
Current - Supply	950	µA (x4 Channels)
Current - Output / Channel	10	mA
Operating Temperature	-40 to 125	°C
Mounting Type	Surface Mount	—
Grade	Automotive	—
Qualification	AEC-Q100	—
RoHS Status	ROHS3 Compliant	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the TS954ID is determined by the following critical parameters: package compatibility (14-SOIC form factor), number of circuits (4 independent amplifiers), output type (rail-to-rail capability), supply voltage range (minimum 2.7 V to maximum 12 V), and operating temperature range (-40°C to 125°C). Additional considerations include slew rate, gain bandwidth product, and output current per channel, which define performance boundaries for signal conditioning applications.

The substitute parts are grouped into two categories based on functional characteristics:

Category 1: General-Purpose Amplifiers with Extended Performance Parts LMV844MA/NOPB, LMV844MAX/NOPB, LMV844QMA/NOPB, and LMV844QMAX/NOPB maintain the same supply voltage range (2.7 V to 12 V) and operating temperature range (-40°C to 125°C) as the TS954ID. These devices feature improved slew rate (2.5 V/µs versus 1 V/µs) and higher gain bandwidth product (4.5 MHz versus 3 MHz), with automotive-grade qualification available in the QMA and QMAX variants.

Category 2: CMOS Amplifiers with Reduced Supply Range Parts ALD4702SBL and ALD4704SBL are CMOS-based alternatives with push-pull output stages. These devices operate within restricted supply voltage ranges (4 V to 10 V for ALD4702SBL; 6.5 V to 12 V for ALD4704SBL) and narrower operating temperature ranges (0°C to 70°C), limiting their applicability to designs not requiring the full automotive temperature specification.

Category 3: Video Amplifiers with Enhanced Bandwidth Parts LM6584MA/NOPB and LM6584MAX/NOPB are video-grade amplifiers with significantly higher bandwidth (24 MHz -3dB bandwidth) and slew rate (15 V/µs), suitable for applications requiring extended frequency response beyond general-purpose signal conditioning.

Parameter Comparison

Parameter	TS954ID	LMV844MA/NOPB	LMV844MAX/NOPB	LMV844QMA/NOPB	LMV844QMAX/NOPB	ALD4702SBL	ALD4704SBL	LM6584MA/NOPB	LM6584MAX/NOPB
Manufacturer	STMicroelectronics	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Advanced Linear Devices	Advanced Linear Devices	Texas Instruments	Texas Instruments
Number of Circuits	4	4	4	4	4	4	4	4	4
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	CMOS	CMOS	General Purpose	General Purpose
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	Rail-to-Rail
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Voltage - Supply Span (Min)	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	4 V	6.5 V	5 V (single) / ±2.5 V (dual)	5 V (single) / ±2.5 V (dual)
Voltage - Supply Span (Max)	12 V	12 V	12 V	12 V	12 V	10 V	12 V	13 V (single) / ±6.5 V (dual)	13 V (single) / ±6.5 V (dual)
Slew Rate	1 V/µs	2.5 V/µs	2.5 V/µs	2.5 V/µs	2.5 V/µs	2.8 V/µs	5 V/µs	15 V/µs	15 V/µs
Gain Bandwidth Product	3 MHz	4.5 MHz	4.5 MHz	4.5 MHz	4.5 MHz	1.5 MHz	2.1 MHz	24 MHz	24 MHz
Current - Supply	950 µA	1.03 mA	1.03 mA	1.03 mA	1.03 mA	4 mA	10 mA	780 µA	780 µA
Current - Output / Channel	10 mA	37 mA	37 mA	37 mA	37 mA	8 mA	15 mA	75 mA	75 mA
Operating Temperature	-40 to 125°C	-40 to 125°C	-40 to 125°C	-40 to 125°C	-40 to 125°C	0 to 70°C	0 to 70°C	—	—
Grade	Automotive	Commercial	Commercial	Automotive	Automotive	Commercial	Commercial	Commercial	Commercial
Qualification	AEC-Q100	—	—	AEC-Q100	AEC-Q100	—	—	—	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

For Automotive Applications with Full Temperature Range Requirements

The LMV844QMA/NOPB and LMV844QMAX/NOPB are direct functional replacements for the TS954ID in automotive-grade designs. Both devices maintain AEC-Q100 qualification, operate across the identical supply voltage range (2.7 V to 12 V), and support the full automotive temperature specification (-40°C to 125°C). The LMV844QMAX/NOPB variant offers superior inventory availability (30,200 units) and is supplied in tape-and-reel packaging, facilitating high-volume production workflows. These parts provide enhanced performance with 2.5 V/µs slew rate and 4.5 MHz gain bandwidth product compared to the TS954ID.

For Commercial Applications with Extended Performance

The LMV844MA/NOPB and LMV844MAX/NOPB provide equivalent functionality without automotive qualification. These commercial-grade alternatives deliver identical electrical performance to their automotive counterparts and maintain full supply voltage and temperature range compatibility. The LMV844MAX/NOPB (4,958 units in stock) is recommended for high-volume commercial applications.

For Applications Requiring Reduced Supply Voltage Minimum

The ALD4702SBL and ALD4704SBL are not suitable substitutes for designs requiring operation below 4 V and 6.5 V respectively. These CMOS alternatives also operate within a restricted temperature range (0°C to 70°C), excluding them from automotive and extended-temperature applications.

For High-Bandwidth Signal Conditioning

The LM6584MA/NOPB and LM6584MAX/NOPB are appropriate only for applications requiring video-grade performance with 24 MHz bandwidth and 15 V/µs slew rate. These devices are not direct functional equivalents due to their enhanced frequency response characteristics and are suitable only when the application specifically demands extended bandwidth performance.

Frequently Asked Questions (FAQ)

Q: Can the LMV844QMAX/NOPB directly replace the TS954ID in existing designs?

A: Yes. The LMV844QMAX/NOPB is a direct functional replacement. Both devices feature four independent rail-to-rail amplifier circuits in 14-SOIC packaging, operate across 2.7 V to 12 V supply range, support -40°C to 125°C operating temperature, and carry AEC-Q100 automotive qualification. Pin-for-pin compatibility is maintained. The LMV844QMAX/NOPB provides superior performance with higher slew rate (2.5 V/µs versus 1 V/µs) and gain bandwidth product (4.5 MHz versus 3 MHz).

Q: What is the difference between LMV844MA/NOPB and LMV844QMA/NOPB?

A: Both devices are electrically identical with identical electrical specifications. The primary difference is qualification level: LMV844QMA/NOPB carries AEC-Q100 automotive qualification and is specified for automotive-grade applications, while LMV844MA/NOPB is commercial-grade. For automotive applications, AEC-Q100 qualification is required; therefore, LMV844QMA/NOPB must be selected.

Q: Why are ALD4702SBL and ALD4704SBL not suitable replacements?

A: The ALD4702SBL and ALD4704SBL have restricted supply voltage ranges (4 V to 10 V and 6.5 V to 12 V respectively) compared to the TS954ID (2.7 V to 12 V). Additionally, these CMOS devices operate only across 0°C to 70°C, excluding them from designs requiring the full automotive temperature range (-40°C to 125°C). These limitations make them unsuitable for applications designed around the TS954ID's full operating envelope.

Q: Can LM6584MA/NOPB or LM6584MAX/NOPB be used as direct replacements?

A: No. While these devices share the 14-SOIC package and four-circuit configuration, they are video-grade amplifiers with significantly different performance characteristics. The LM6584 series features 24 MHz bandwidth and 15 V/µs slew rate, compared to the TS954ID's 3 MHz gain bandwidth product and 1 V/µs slew rate. These parts are suitable only for applications specifically requiring video-grade performance and are not general-purpose equivalents.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (LMV844 series, ALD4702SBL, ALD4704SBL, and LM6584 series) are ROHS3 compliant, matching the TS954ID's environmental compliance status.

Q: What packaging options are available for the LMV844 series?

A: The LMV844 series is available in two packaging formats: tube packaging (MA and QMA variants) and tape-and-reel packaging (MAX and QMAX variants). Tape-and-reel packaging (MAX and QMAX) is recommended for automated assembly and high-volume production. Tube packaging (MA and QMA) is suitable for lower-volume applications and manual assembly workflows.

Q: Is the TS954ID still available for procurement?

A: The TS954ID is classified as obsolete. While 1,900 units are reported in current inventory, procurement of this part number is not recommended for new designs. Active substitute parts such as LMV844QMAX/NOPB (30,200 units available) should be selected for ongoing production and new design implementations.

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