TS912AIN Equivalent & Substitute Parts

Part Overview

The TS912AIN is a CMOS dual-channel operational amplifier manufactured by STMicroelectronics, housed in an 8-Mini DIP through-hole package. This device features rail-to-rail output capability, making it suitable for low-voltage analog signal processing applications. The TS912AIN is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production continuity.

Key Parameters

Parameter	Value
Amplifier Type	CMOS
Number of Circuits	2
Output Type	Rail-to-Rail
Package / Case	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
Voltage - Supply Span (Min)	2.7 V
Voltage - Supply Span (Max)	16 V
Operating Temperature	-40°C ~ 125°C
Grade	Automotive
Qualification	AEC-Q100
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the TS912AIN is determined by the following critical parameters:

Primary Compatibility Criteria:

Amplifier Type: CMOS technology
Number of Circuits: Dual-channel (2 circuits)
Output Type: Rail-to-Rail capability
Package / Case: 8-DIP (0.300", 7.62mm) form factor
Mounting Type: Through Hole

Secondary Compatibility Criteria:

Voltage Supply Range: Minimum 2.7 V to 4.75 V; Maximum 15.5 V to 16 V
Operating Temperature Range: -40°C minimum; 85°C to 125°C maximum
Compliance: ROHS3 Compliant, REACH Unaffected, EAR99 classification

The substitute parts listed below maintain the core functional architecture (dual CMOS amplifier in 8-DIP package) while exhibiting variations in slew rate, gain bandwidth product, input bias current, and output current specifications. These variations are within acceptable tolerances for general-purpose analog signal conditioning applications.

Parameter Comparison

Parameter	TS912AIN (STMicroelectronics)	LMC6482IN/NOPB (Texas Instruments)	LMC6082IN/NOPB (Texas Instruments)	LMC662AIN/NOPB (National Semiconductor)
Amplifier Type	CMOS	CMOS	CMOS	CMOS
Number of Circuits	2	2	2	2
Output Type	Rail-to-Rail	Rail-to-Rail	Push-Pull, Rail-to-Rail	Push-Pull, Rail-to-Rail
Slew Rate	1.3 V/µs	1.3 V/µs	1.5 V/µs	1.1 V/µs
Gain Bandwidth Product	1.4 MHz	1.5 MHz	1.3 MHz	1.4 MHz
Current - Input Bias	1 pA	0.02 pA	0.01 pA	0.002 pA
Voltage - Input Offset	5 mV	110 µV	150 µV	1 mV
Current - Supply (x2 Channels)	400 µA	1.3 mA	1.1 mA	750 µA
Current - Output / Channel	75 mA	30 mA	34 mA	40 mA
Voltage - Supply Span (Min)	2.7 V	3 V	4.5 V	4.75 V
Voltage - Supply Span (Max)	16 V	15.5 V	15.5 V	15.5 V
Operating Temperature	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Active	Last Time Buy	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

LMC6482IN/NOPB (Texas Instruments) - Primary Substitute

The LMC6482IN/NOPB is the recommended primary substitute for the TS912AIN. This device maintains identical slew rate (1.3 V/µs) and comparable gain bandwidth product (1.5 MHz). The LMC6482IN/NOPB is currently in active production status, ensuring long-term availability and supply chain continuity. The device is ROHS3 compliant and carries EAR99 classification. The minimum supply voltage of 3 V accommodates most applications designed for the TS912AIN, with the exception of ultra-low-voltage designs requiring operation below 3 V. Operating temperature range extends to 85°C, which is suitable for industrial and commercial applications but does not cover the full automotive temperature range of the original part.

LMC662AIN/NOPB (National Semiconductor) - Secondary Substitute

The LMC662AIN/NOPB provides an alternative with superior input offset voltage (1 mV versus 5 mV) and lower input bias current (0.002 pA). This device is currently in active production and is ROHS3 compliant. The minimum supply voltage of 4.75 V restricts use in applications requiring operation below this threshold. Operating temperature range is -40°C to 85°C. The push-pull output configuration provides enhanced output drive capability compared to standard rail-to-rail designs.

LMC6082IN/NOPB (Texas Instruments) - Tertiary Substitute

The LMC6082IN/NOPB is classified as Last Time Buy, indicating limited future availability. This device features the highest slew rate (1.5 V/µs) among the substitutes and is suitable for applications requiring faster transient response. The minimum supply voltage of 4.5 V and operating temperature range of -40°C to 85°C are comparable to other substitutes. This part should be considered only when specific performance characteristics justify acceptance of supply discontinuation risk.

Automotive Grade Consideration

The TS912AIN carries automotive grade qualification (AEC-Q100) with an operating temperature range of -40°C to 125°C. None of the substitute parts maintain full automotive qualification or the extended upper temperature limit. Applications requiring automotive-grade components should evaluate alternative CMOS dual-amplifier solutions with explicit AEC-Q100 certification.

Frequently Asked Questions (FAQ)

Q: Can the LMC6482IN/NOPB directly replace the TS912AIN in all applications?

A: The LMC6482IN/NOPB is functionally compatible for applications operating within the supply voltage range of 3 V to 15.5 V and temperature range of -40°C to 85°C. Applications requiring operation below 3 V supply voltage or above 85°C ambient temperature require design verification. The identical 8-DIP package and through-hole mounting enable direct socket substitution.

Q: What is the impact of the lower maximum operating temperature on the substitute parts?

A: The TS912AIN operates to 125°C, while all substitute parts operate to 85°C maximum. Applications designed for the full automotive temperature range (-40°C to 125°C) cannot rely on these substitutes without thermal analysis and potential design modification. Commercial and industrial applications with maximum ambient temperatures below 85°C are unaffected.

Q: Are there differences in supply voltage requirements between the TS912AIN and substitute parts?

A: The TS912AIN operates from 2.7 V minimum supply voltage. The LMC6482IN/NOPB requires 3 V minimum, while the LMC6082IN/NOPB and LMC662AIN/NOPB require 4.5 V and 4.75 V respectively. Applications operating at 2.7 V to 3 V supply voltage are incompatible with the LMC6082IN/NOPB and LMC662AIN/NOPB. The LMC6482IN/NOPB accommodates this range with a 3 V minimum specification.

Q: How do the output current specifications compare?

A: The TS912AIN provides 75 mA output current per channel, significantly higher than all substitute parts. The LMC6482IN/NOPB provides 30 mA, the LMC6082IN/NOPB provides 34 mA, and the LMC662AIN/NOPB provides 40 mA per channel. Applications requiring output currents exceeding 40 mA per channel require external buffering or alternative component selection.

Q: What is the significance of the push-pull output configuration in the LMC6082IN/NOPB and LMC662AIN/NOPB?

A: Push-pull output configuration provides enhanced sourcing and sinking capability compared to standard rail-to-rail designs. This configuration is beneficial for applications requiring high-speed switching or driving capacitive loads. The TS912AIN features standard rail-to-rail output without explicit push-pull designation.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all three substitute parts (LMC6482IN/NOPB, LMC6082IN/NOPB, and LMC662AIN/NOPB) are ROHS3 compliant and carry EAR99 export classification, matching the compliance profile of the TS912AIN.

Q: What is the product status significance for long-term supply planning?

A: The LMC6482IN/NOPB is in active production, ensuring indefinite availability. The LMC6082IN/NOPB is classified as Last Time Buy, indicating that production will cease and existing inventory will be depleted. The LMC662AIN/NOPB is in active production. For new designs requiring long-term component availability, the LMC6482IN/NOPB is the preferred selection.

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