TLE2142ID Equivalent & Substitute Parts

Part Overview

The TLE2142ID is a general-purpose operational amplifier manufactured by Texas Instruments, featuring dual circuits in an 8-SOIC surface-mount package with rail-to-rail output capability. This device is classified as Last Time Buy, indicating discontinued production with limited inventory availability. The TLE2142ID remains in stock with 1,467 units available; however, identifying equivalent and substitute parts is essential for long-term design continuity and supply chain resilience. Substitute parts must maintain functional compatibility across critical electrical parameters including supply voltage range, output current capability, and frequency response characteristics.

Key Parameters

Parameter	TLE2142ID Value	Unit	Substitution Relevance
Amplifier Type	General Purpose	—	Critical
Number of Circuits	2	—	Critical
Output Type	Rail-to-Rail	—	Critical
Package / Case	8-SOIC (0.154", 3.90mm Width)	—	Critical
Slew Rate	45	V/µs	Important
Gain Bandwidth Product	5.9	MHz	Important
Current - Input Bias	700	nA	Important
Voltage - Input Offset	290	µV	Important
Current - Supply (x2 Channels)	6.9	mA	Important
Current - Output / Channel	50	mA	Important
Voltage - Supply Span (Min)	4	V	Critical
Voltage - Supply Span (Max)	44	V	Critical
Operating Temperature	-40 to 105	°C	Important
Mounting Type	Surface Mount	—	Critical
RoHS Status	ROHS3 Compliant	—	Important
Moisture Sensitivity Level	1 (Unlimited)	—	Important

Substitute Part Grouping Explanation

Substitution compatibility for the TLE2142ID is determined by strict adherence to the following critical parameters:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface-mount package to ensure direct PCB footprint compatibility without layout redesign.

Electrical Supply Range: The TLE2142ID operates across a 4 V to 44 V supply span. Substitute parts must support this full range or a range that encompasses the application's actual supply voltage requirements. Parts with narrower supply ranges (such as 8 V to 36 V) are acceptable only if the application operates within that narrower window.

Circuit Count: The dual-circuit configuration (2 circuits per package) is a fundamental requirement. Single-circuit alternatives are not substitutes.

Output Configuration: The TLE2142ID features rail-to-rail output. Substitute parts without specified rail-to-rail output capability may still be functionally compatible if output swing specifications are verified against application requirements.

Amplifier Type: General-purpose amplifiers are the primary substitutes. J-FET input amplifiers (such as AD8512 and ADA4000 series) represent alternative topologies with different input bias current characteristics but maintain functional compatibility in many applications.

Compliance Requirements: All substitute parts must maintain ROHS3 compliance and MSL 1 rating to ensure regulatory and manufacturing process compatibility.

Parameter Comparison

Parameter	TLE2142ID	TLE2142IDR	AD8512ARZ	AD8512ARZ-REEL	AD8512ARZ-REEL7	ADA4000-2ARZ	ADA4000-2ARZ-R7	ADA4000-2ARZ-RL	ADA4075-2ARZ	ADA4075-2ARZ-R7	ADA4075-2ARZ-RL
Manufacturer	Texas Instruments	Texas Instruments	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Analog Devices
Amplifier Type	General Purpose	General Purpose	J-FET	J-FET	J-FET	J-FET	J-FET	J-FET	General Purpose	General Purpose	General Purpose
Number of Circuits	2	2	2	2	2	2	2	2	2	2	2
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Slew Rate (V/µs)	45	45	20	20	20	20	20	20	12	12	12
Gain Bandwidth Product (MHz)	5.9	5.9	8	8	8	5	5	5	6.5	6.5	6.5
Current - Input Bias (nA)	700	700	25	25	25	5	5	5	30	30	30
Voltage - Input Offset (µV)	290	290	100	100	100	200	200	200	200	200	200
Current - Supply (mA, x2 Channels)	6.9	6.9	2.2	2.2	2.2	1.35	1.35	1.35	1.8	1.8	1.8
Current - Output / Channel (mA)	50	50	70	70	70	28	28	28	40	40	40
Voltage - Supply Span Min (V)	4	4	10	10	10	8	8	8	9	9	9
Voltage - Supply Span Max (V)	44	44	30	30	30	36	36	36	36	36	36
Operating Temperature (°C)	-40 to 105	-40 to 105	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125
Product Status	Last Time Buy	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
Inventory (Pcs)	1,467	9,489	12,423	16,600	30,300	3,209	2,300	3,888	19,461	12,300	7,050

Engineering Selection Recommendations

Primary Substitute: TLE2142IDR

The TLE2142IDR is the manufacturer-recommended direct substitute for the TLE2142ID. Both parts share identical electrical specifications, including slew rate (45 V/µs), gain bandwidth product (5.9 MHz), supply voltage range (4 V to 44 V), and output current capability (50 mA per channel). The TLE2142IDR differs only in packaging format (Cut Tape & Digi-Reel® versus Tube) and product status (Active versus Last Time Buy). With 9,489 units in stock, the TLE2142IDR provides superior supply continuity. Both parts maintain ROHS3 compliance and MSL 1 rating. Selection of TLE2142IDR is recommended for new designs and production continuity.

Secondary Substitutes: ADA4075-2ARZ Series

The ADA4075-2ARZ, ADA4075-2ARZ-R7, and ADA4075-2ARZ-RL represent general-purpose amplifier alternatives from Analog Devices. These parts maintain the same dual-circuit, 8-SOIC package configuration and operate across a 9 V to 36 V supply range, which is compatible with most applications using the TLE2142ID within this narrower window. The ADA4075 series features lower input bias current (30 nA versus 700 nA), lower supply current (1.8 mA versus 6.9 mA), and comparable output current (40 mA versus 50 mA). Slew rate is reduced to 12 V/µs, and gain bandwidth product is 6.5 MHz. These parts are suitable for applications where the 9 V minimum supply voltage is acceptable and where lower power consumption is beneficial. All variants maintain ROHS3 compliance and MSL 1 rating with Active product status. Inventory availability ranges from 7,050 to 19,461 units across packaging variants.

Tertiary Substitutes: AD8512ARZ Series and ADA4000-2ARZ Series

The AD8512ARZ series (including AD8512ARZ-REEL and AD8512ARZ-REEL7) and ADA4000-2ARZ series represent J-FET input amplifier alternatives. These parts maintain 8-SOIC packaging and dual-circuit configuration but operate across narrower supply ranges (10 V to 30 V for AD8512; 8 V to 36 V for ADA4000). J-FET input topology provides significantly lower input bias current (25 pA for AD8512; 5 pA for ADA4000) compared to the TLE2142ID (700 nA), making these alternatives suitable for high-impedance input applications. However, slew rate is reduced to 20 V/µs (AD8512) or 20 V/µs (ADA4000), and output current capability is reduced to 70 mA (AD8512) or 28 mA (ADA4000). These parts are suitable only for applications where the narrower supply voltage range is acceptable and where ultra-low input bias current is required. All variants maintain ROHS3 compliance and MSL 1 rating with Active product status.

Supply Voltage Compatibility Assessment

Applications operating at supply voltages below 8 V are incompatible with all Analog Devices substitutes listed. The TLE2142ID minimum supply voltage of 4 V is unique among the available alternatives. Applications requiring operation below 8 V must retain the TLE2142ID or TLE2142IDR.

Applications operating at supply voltages above 36 V are compatible only with TLE2142ID or TLE2142IDR, which support up to 44 V.

Applications operating within the 9 V to 36 V window have maximum flexibility across all substitute options.

Frequently Asked Questions (FAQ)

Q: Can the TLE2142IDR be used as a direct replacement for the TLE2142ID in existing designs?

A: Yes. The TLE2142IDR is electrically and functionally identical to the TLE2142ID. Both parts share the same electrical specifications, package footprint (8-SOIC), and pin configuration. The only difference is packaging format (Cut Tape & Digi-Reel® versus Tube) and product status. No circuit modifications are required.

Q: What is the primary reason to substitute the TLE2142ID with an alternative part?

A: The TLE2142ID is classified as Last Time Buy with limited inventory (1,467 units). The TLE2142IDR provides the same functionality with significantly higher inventory availability (9,489 units) and Active product status, ensuring long-term supply continuity.

Q: Are the ADA4075-2ARZ series parts suitable replacements for all TLE2142ID applications?

A: The ADA4075-2ARZ series is suitable only for applications operating within the 9 V to 36 V supply voltage range. Applications requiring operation below 9 V or above 36 V must use TLE2142ID or TLE2142IDR. Additionally, the ADA4075 series has lower slew rate (12 V/µs versus 45 V/µs) and reduced output current (40 mA versus 50 mA), which may affect high-speed or high-current applications.

Q: What are the key differences between the AD8512ARZ and ADA4000-2ARZ alternatives?

A: Both are J-FET input amplifiers in 8-SOIC packages with dual circuits. The AD8512ARZ operates across 10 V to 30 V with 25 pA input bias current and 70 mA output current. The ADA4000-2ARZ operates across 8 V to 36 V with 5 pA input bias current and 28 mA output current. The ADA4000 series provides lower input bias current and wider supply range but reduced output current capability.

Q: Can I use the AD8512ARZ in an application designed for the TLE2142ID if the supply voltage is 12 V?

A: The AD8512ARZ can operate at 12 V supply voltage. However, compatibility depends on application-specific requirements. The AD8512ARZ has lower slew rate (20 V/µs versus 45 V/µs), lower output current (70 mA versus 50 mA, which is actually higher), and significantly lower input bias current (25 pA versus 700 nA). If the application requires high slew rate or operates at supply voltages outside the 10 V to 30 V range, the AD8512ARZ is not suitable.

Q: What is the significance of the packaging variants (Tube, Cut Tape & Digi-Reel®, Tape & Reel)?

A: Packaging format affects manufacturing and assembly processes but does not change electrical functionality. Tube packaging is suitable for manual assembly or small-volume production. Cut Tape & Digi-Reel® and Tape & Reel formats are optimized for automated assembly equipment. Selection depends on production volume and assembly capabilities, not circuit performance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed in this reference maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring regulatory and manufacturing process compatibility with the TLE2142ID.

Q: What should I do if my application requires operation below 8 V supply voltage?

A: Applications requiring supply voltages below 8 V are compatible only with TLE2142ID or TLE2142IDR. No alternative substitutes support this lower voltage range. Ensure adequate inventory of TLE2142IDR for long-term supply continuity.

Q: How do I determine which substitute part is best for my application?

A: Evaluate your application against these criteria in order: (1) Required supply voltage range—select parts that support your voltage window; (2) Required slew rate and bandwidth—compare against TLE2142ID specifications; (3) Input bias current requirements—J-FET alternatives provide lower bias current; (4) Output current requirements—verify the substitute meets your load current specifications; (5) Power consumption constraints—lower-current alternatives may be beneficial; (6) Packaging and assembly requirements—select appropriate packaging format.

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