TLE2142CD Equivalent & Substitute Parts

Part Overview

The TLE2142CD is a general-purpose operational amplifier manufactured by Texas Instruments, featuring dual circuits in an 8-SOIC surface-mount package. This device is classified as Last Time Buy, indicating discontinued production with limited inventory availability. The TLE2142CD operates across a wide supply voltage range of 4V to 44V with rail-to-rail output capability, making it suitable for diverse analog signal processing applications.

Identification of equivalent and substitute parts is necessary due to the Last Time Buy status of the TLE2142CD. Alternative components with compatible electrical and mechanical specifications ensure design continuity and long-term product availability for new designs and production requirements.

Key Parameters

Parameter	Value
Amplifier Type	General Purpose
Number of Circuits	2
Output Type	Rail-to-Rail
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Slew Rate	45V/µs
Gain Bandwidth Product	5.9 MHz
Current - Input Bias	700 nA
Voltage - Input Offset	290 µV
Current - Supply	6.9mA (x2 Channels)
Current - Output / Channel	50 mA
Voltage - Supply Span (Min)	4 V
Voltage - Supply Span (Max)	44 V
Operating Temperature	0°C ~ 70°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TLE2142CD are evaluated based on the following critical parameters that determine functional compatibility:

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

Circuit Configuration: All substitutes feature dual-circuit (2-channel) operational amplifier architecture, maintaining the same functional density as the original part.

Supply Voltage Range: The TLE2142CD operates from 4V to 44V. Substitute parts must support overlapping or equivalent supply voltage ranges to function in the same applications.

Output Characteristics: The TLE2142CD provides rail-to-rail output capability. Substitutes are selected based on output type compatibility and current delivery specifications.

Electrical Performance: Key performance metrics including slew rate, gain bandwidth product, input bias current, input offset voltage, and output current per channel determine whether a substitute can meet application requirements.

Compliance & Status: All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and active product status to ensure long-term availability and regulatory alignment.

Parameter Comparison

Parameter	TLE2142CD	TLE2142CDR	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 Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.
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
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
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	0.025	0.025	0.025	0.005	0.005	0.005	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)	4 V	4 V	10 V	10 V	10 V	8 V	8 V	8 V	9 V	9 V	9 V
Voltage - Supply Span (Max)	44 V	44 V	30 V	30 V	30 V	36 V	36 V	36 V	36 V	36 V	36 V
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Product Status	Last Time Buy	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Replacement (Identical Specifications):

The TLE2142CDR is the primary direct replacement for the TLE2142CD. Both parts are manufactured by Texas Instruments with identical electrical specifications, including 45V/µs slew rate, 5.9 MHz gain bandwidth product, 700 nA input bias current, and 4V to 44V supply voltage range. The TLE2142CDR maintains active product status with significantly higher inventory availability (15,440 units) compared to the Last Time Buy TLE2142CD (1,350 units). Both parts are ROHS3 compliant with MSL Level 1 rating. The primary difference is packaging format: TLE2142CDR is supplied in Cut Tape and Digi-Reel format, while TLE2142CD is supplied in standard packaging.

Alternative Substitutes with Performance Trade-offs:

The ADA4075-2ARZ, ADA4075-2ARZ-R7, and ADA4075-2ARZ-RL (Analog Devices Inc., iPolar series) are general-purpose amplifiers with compatible 8-SOIC packaging and dual-circuit configuration. These parts feature lower slew rate (12V/µs versus 45V/µs) and reduced supply current (1.8mA versus 6.9mA), resulting in lower power consumption. The ADA4075 series operates across 9V to 36V supply range, which does not support the full 4V minimum of the TLE2142CD. These substitutes are suitable for applications where the lower slew rate is acceptable and supply voltage remains above 9V.

The ADA4000-2ARZ, ADA4000-2ARZ-R7, and ADA4000-2ARZ-RL (Analog Devices Inc.) are J-FET input amplifiers with extremely low input bias current (5 pA versus 700 nA), making them suitable for high-impedance signal sources. However, these parts feature reduced output current capability (28 mA versus 50 mA) and operate across 8V to 36V supply range, excluding the 4V minimum specification of the TLE2142CD.

The AD8512ARZ, AD8512ARZ-REEL, and AD8512ARZ-REEL7 (Analog Devices Inc.) are J-FET input amplifiers with higher gain bandwidth product (8 MHz versus 5.9 MHz) and superior input bias current performance (25 pA). These parts operate across 10V to 30V supply range, which is more restrictive than the TLE2142CD and does not support operation below 10V or above 30V.

Compliance and Availability:

All substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring regulatory alignment and handling compatibility. All recommended substitutes carry active product status, providing long-term availability and supply chain stability. Selection should prioritize the TLE2142CDR for direct replacement applications, with alternative parts considered only when specific performance characteristics (such as ultra-low input bias current or higher bandwidth) are required and supply voltage constraints are satisfied.

Frequently Asked Questions (FAQ)

Q: Can the TLE2142CDR be used as a direct replacement for the TLE2142CD?

A: Yes. The TLE2142CDR is electrically and functionally identical to the TLE2142CD. Both parts feature identical slew rate (45V/µs), gain bandwidth product (5.9 MHz), input bias current (700 nA), input offset voltage (290 µV), supply current (6.9mA per dual channels), output current (50 mA per channel), and supply voltage range (4V to 44V). The 8-SOIC package dimensions are identical. The primary difference is packaging format and product status: TLE2142CDR is active production with higher inventory, while TLE2142CD is Last Time Buy.

Q: What are the key differences between the TLE2142CD and the ADA4075-2ARZ series?

A: Both are general-purpose dual operational amplifiers in 8-SOIC packages. The TLE2142CD features higher slew rate (45V/µs versus 12V/µs) and higher supply current (6.9mA versus 1.8mA). The TLE2142CD supports 4V minimum supply voltage, while ADA4075 requires 9V minimum. The ADA4075 series features lower input bias current (30 nA versus 700 nA) and lower power consumption, making it suitable for battery-powered applications where slew rate requirements are less demanding.

Q: Are the AD8512ARZ and ADA4000-2ARZ suitable replacements for the TLE2142CD?

A: These J-FET input amplifiers offer superior input bias current performance (25 pA and 5 pA respectively, versus 700 nA) and are suitable for high-impedance applications. However, both parts have restricted supply voltage ranges: AD8512ARZ operates 10V to 30V, and ADA4000-2ARZ operates 8V to 36V. The TLE2142CD operates 4V to 44V. These substitutes are not suitable for applications requiring operation below 8V or above 30V. Additionally, both feature lower output current capability (70 mA and 28 mA respectively, versus 50 mA).

Q: What is the significance of the 8-SOIC package specification?

A: The 8-SOIC (Small Outline Integrated Circuit) package with 0.154" (3.90mm) width is a standard surface-mount package for dual operational amplifiers. All substitute parts use identical package dimensions, allowing direct PCB layout compatibility without redesign. This ensures that substitute parts can be soldered into existing PCB footprints without modification.

Q: Why do some substitute parts have lower slew rates than the TLE2142CD?

A: Slew rate represents the maximum rate of change of output voltage per unit time. The TLE2142CD features 45V/µs slew rate, while ADA4075 series features 12V/µs. Lower slew rate is acceptable for applications with lower frequency signals or where power consumption is prioritized. Applications requiring high-speed signal processing or steep transient response require the higher slew rate of the TLE2142CD or TLE2142CDR.

Q: What does ROHS3 compliance mean?

A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates that the component meets European Union environmental regulations restricting the use of specific hazardous materials including lead, mercury, cadmium, hexavalent chromium, and certain brominated flame retardants. All listed substitute parts are ROHS3 compliant, ensuring regulatory alignment for applications subject to environmental standards.

Q: What is MSL Level 1 and why is it important?

A: MSL (Moisture Sensitivity Level) Level 1 indicates unlimited shelf life without moisture control requirements. Components with MSL Level 1 do not require special desiccant packaging or baking procedures before soldering. All substitute parts carry MSL Level 1 rating, ensuring simplified handling and storage procedures identical to the TLE2142CD.

Q: How does input bias current affect circuit design?

A: Input bias current represents the small DC current flowing into the operational amplifier inputs. The TLE2142CD features 700 nA input bias current, while J-FET alternatives (AD8512ARZ with 25 pA, ADA4000-2ARZ with 5 pA) feature significantly lower values. Lower input bias current reduces errors in high-impedance circuits and transimpedance amplifier configurations. Selection depends on application requirements and impedance levels.

Q: What is the significance of active product status versus Last Time Buy?

A: Active product status indicates ongoing production and long-term availability. Last Time Buy status indicates discontinued production with limited remaining inventory. The TLE2142CD is Last Time Buy with 1,350 units available, while all substitute parts carry active status with substantially higher inventory levels. For new designs, active-status parts ensure supply chain continuity and future availability.

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