TLE2142CDG4 Equivalent & Substitute Parts

Part Overview

The TLE2142CDG4 is a general-purpose operational amplifier featuring dual circuits in an 8-SOIC surface-mount package, manufactured by Texas Instruments. This device delivers rail-to-rail output capability with a slew rate of 45V/µs and a gain bandwidth product of 5.9 MHz, designed for applications requiring stable amplification across a wide supply voltage range of 4V to 44V.

The TLE2142CDG4 is currently in Last Time Buy status, indicating that Texas Instruments has discontinued this product line. Identifying equivalent and substitute parts is essential for design continuity, procurement planning, and long-term product support.

Key Parameters

Parameter	Value
Manufacturer Part Number	TLE2142CDG4
Manufacturer	Texas Instruments
Category	Linear, Amplifiers
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
Voltage - Supply Span (Min)	4 V
Voltage - Supply Span (Max)	44 V
Operating Temperature	0°C ~ 70°C
Current - Supply	6.9mA (x2 Channels)
Current - Output / Channel	50 mA
Current - Input Bias	700 nA
Voltage - Input Offset	290 µV
RoHS Status	ROHS3 Compliant
Product Status	Last Time Buy

Substitute Part Grouping Explanation

Substitute parts for the TLE2142CDG4 are identified based on strict electrical and mechanical compatibility criteria. The following parameters determine substitution eligibility:

Primary Compatibility Criteria:

Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Number of Circuits: 2
Supplier Device Package: 8-SOIC

Electrical Performance Parameters:

Slew Rate: 45V/µs (TLE2142CDG4 baseline)
Gain Bandwidth Product: 5.9 MHz (TLE2142CDG4 baseline)
Voltage - Supply Span: 4V to 44V (TLE2142CDG4 baseline)
Current - Output / Channel: 50 mA (TLE2142CDG4 baseline)

Compliance & Regulatory:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
REACH Status: REACH Unaffected

Substitute parts are grouped into two categories based on amplifier type: General Purpose variants (matching the TLE2142CDG4 classification) and J-FET variants (offering alternative input characteristics). All substitutes maintain 8-SOIC packaging and surface-mount compatibility.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Number of Circuits	Package / Case	Slew Rate (V/µs)	Gain Bandwidth Product (MHz)	Voltage Supply Min (V)	Voltage Supply Max (V)	Current - Supply (mA x2 Ch)	Current - Output / Channel (mA)	Current - Input Bias (nA/pA)	Voltage - Input Offset (µV)	Operating Temp (°C)	Product Status
TLE2142CDG4	Texas Instruments	General Purpose	2	8-SOIC	45	5.9	4	44	6.9	50	700 nA	290	0 ~ 70	Last Time Buy
TLE2142CDR	Texas Instruments	General Purpose	2	8-SOIC	45	5.9	4	44	6.9	50	700 nA	290	0 ~ 70	Active
AD8512ARZ	Analog Devices Inc.	J-FET	2	8-SOIC	20	8	10	30	2.2	70	25 pA	100	-40 ~ 125	Active
AD8512ARZ-REEL	Analog Devices Inc.	J-FET	2	8-SOIC	20	8	10	30	2.2	70	25 pA	100	-40 ~ 125	Active
AD8512ARZ-REEL7	Analog Devices Inc.	J-FET	2	8-SOIC	20	8	10	30	2.2	70	25 pA	100	-40 ~ 125	Active
ADA4000-2ARZ	Analog Devices Inc.	J-FET	2	8-SOIC	20	5	8	36	1.35	28	5 pA	200	-40 ~ 125	Active
ADA4000-2ARZ-R7	Analog Devices Inc.	J-FET	2	8-SOIC	20	5	8	36	1.35	28	5 pA	200	-40 ~ 125	Active
ADA4000-2ARZ-RL	Analog Devices Inc.	J-FET	2	8-SOIC	20	5	8	36	1.35	28	5 pA	200	-40 ~ 125	Active
ADA4075-2ARZ	Analog Devices Inc.	General Purpose	2	8-SOIC	12	6.5	9	36	1.8	40	30 nA	200	-40 ~ 125	Active
ADA4075-2ARZ-R7	Analog Devices Inc.	General Purpose	2	8-SOIC	12	6.5	9	36	1.8	40	30 nA	200	-40 ~ 125	Active
ADA4075-2ARZ-RL	Analog Devices Inc.	General Purpose	2	8-SOIC	12	6.5	9	36	1.8	40	30 nA	200	-40 ~ 125	Active

Engineering Selection Recommendations

Primary Recommendation: TLE2142CDR

The TLE2142CDR is the direct equivalent to the TLE2142CDG4, manufactured by Texas Instruments. This part maintains identical electrical specifications across all critical parameters: 45V/µs slew rate, 5.9 MHz gain bandwidth product, 4V to 44V supply voltage range, and 50 mA output current per channel. The TLE2142CDR differs only in packaging format (Cut Tape & Digi-Reel® versus Tube) and holds Active product status, ensuring long-term availability and supply continuity. This part is ROHS3 Compliant and REACH Unaffected, matching the compliance profile of the original device.

Secondary Recommendations: ADA4075-2ARZ Series

The ADA4075-2ARZ, ADA4075-2ARZ-R7, and ADA4075-2ARZ-RL represent general-purpose amplifier alternatives from Analog Devices Inc. These parts maintain the same amplifier classification and 8-SOIC package as the TLE2142CDG4. All three variants are Active products with extended operating temperature range (-40°C to 125°C versus 0°C to 70°C). The ADA4075 series exhibits lower slew rate (12V/µs versus 45V/µs) and reduced supply current (1.8mA versus 6.9mA), making them suitable for power-constrained applications. These parts are ROHS3 Compliant and REACH Unaffected.

Alternative Recommendations: AD8512ARZ Series and ADA4000-2ARZ Series

The AD8512ARZ, AD8512ARZ-REEL, and AD8512ARZ-REEL7 are J-FET amplifiers offering significantly lower input bias current (25 pA versus 700 nA) and improved input offset voltage (100 µV versus 290 µV). These parts support extended operating temperature (-40°C to 125°C) and are Active products. However, the supply voltage range is restricted to 10V to 30V, and slew rate is reduced to 20V/µs.

The ADA4000-2ARZ, ADA4000-2ARZ-R7, and ADA4000-2ARZ-RL are J-FET amplifiers with ultra-low input bias current (5 pA) and extended temperature range. Supply voltage range is 8V to 36V with 20V/µs slew rate. These parts are suitable for high-impedance input applications requiring minimal bias current.

All substitute parts are ROHS3 Compliant, MSL Level 1, and REACH Unaffected, meeting regulatory requirements equivalent to the TLE2142CDG4.

Frequently Asked Questions (FAQ)

Q1: Can I directly replace TLE2142CDG4 with TLE2142CDR?

Yes. The TLE2142CDR is electrically and functionally identical to the TLE2142CDG4. Both parts share the same base product number (TLE2142), identical electrical specifications, and 8-SOIC package. The only difference is packaging format: TLE2142CDG4 is supplied in Tube, while TLE2142CDR is supplied in Cut Tape & Digi-Reel®. Both are ROHS3 Compliant and REACH Unaffected. The TLE2142CDR is Active, ensuring continued availability.

Q2: What are the key differences between general-purpose and J-FET amplifier substitutes?

General-purpose amplifiers (TLE2142CDR, ADA4075 series) use bipolar input stages, resulting in higher input bias current (30 nA to 700 nA) but simpler biasing requirements. J-FET amplifiers (AD8512ARZ series, ADA4000-2ARZ series) use field-effect transistor input stages, delivering ultra-low input bias current (5 pA to 25 pA), making them ideal for high-impedance input circuits. J-FET variants typically exhibit lower slew rates and more restricted supply voltage ranges compared to general-purpose types.

Q3: Is the ADA4075-2ARZ suitable for high-speed applications?

The ADA4075-2ARZ has a slew rate of 12V/µs, which is significantly lower than the TLE2142CDG4's 45V/µs. For applications requiring fast transient response or high-frequency signal handling, the ADA4075 series is not recommended. The TLE2142CDR maintains the original 45V/µs slew rate and is the appropriate choice for high-speed requirements.

Q4: Can I use AD8512ARZ or ADA4000-2ARZ in a circuit designed for TLE2142CDG4?

Substitution requires circuit analysis. Both J-FET alternatives have restricted supply voltage ranges (10V to 30V for AD8512ARZ; 8V to 36V for ADA4000-2ARZ) compared to the TLE2142CDG4's 4V to 44V range. If your circuit operates within these voltage limits, J-FET substitutes may be viable. However, the significantly lower slew rates (20V/µs versus 45V/µs) and different input bias characteristics require verification of circuit performance. Consult device datasheets for detailed electrical specifications before substitution.

Q5: What packaging options are available for substitute parts?

TLE2142CDR is available in Cut Tape & Digi-Reel® packaging. AD8512ARZ is supplied in Tube. AD8512ARZ-REEL and AD8512ARZ-REEL7 are supplied in Cut Tape & Digi-Reel®. ADA4000-2ARZ is supplied in Tube; ADA4000-2ARZ-R7 and ADA4000-2ARZ-RL are supplied in Cut Tape & Digi-Reel® or Tape & Reel. ADA4075-2ARZ is supplied in Tube; ADA4075-2ARZ-R7 and ADA4075-2ARZ-RL are supplied in Cut Tape & Digi-Reel® or Tape & Reel. All parts maintain the same 8-SOIC (0.154", 3.90mm Width) package footprint.

Q6: Are all substitute parts RoHS3 Compliant?

Yes. All substitute parts listed—TLE2142CDR, AD8512ARZ series, ADA4000-2ARZ series, and ADA4075-2ARZ series—are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited) and REACH Unaffected status, matching the compliance profile of the TLE2142CDG4.

Q7: Which substitute offers the lowest power consumption?

The ADA4000-2ARZ series exhibits the lowest supply current at 1.35mA (x2 Channels), compared to 6.9mA for the TLE2142CDG4. The ADA4075-2ARZ series consumes 1.8mA (x2 Channels). For power-constrained applications, these Analog Devices options are preferred. However, verify that the restricted supply voltage ranges and lower slew rates are compatible with your circuit requirements.

Q8: What is the operating temperature range for each substitute?

The TLE2142CDG4 operates from 0°C to 70°C. The TLE2142CDR maintains this range. All Analog Devices substitutes (AD8512ARZ series, ADA4000-2ARZ series, ADA4075-2ARZ series) offer extended operating temperature from -40°C to 125°C, providing greater thermal flexibility for industrial and automotive applications.

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