TLE2071ACD Equivalent & Substitute Parts

Part Overview

The TLE2071ACD is a J-FET input operational amplifier manufactured by Texas Instruments in the Excalibur™ series. This device is a single-circuit, 8-SOIC surface mount integrated circuit designed for applications requiring low input bias current and high input impedance characteristics. The TLE2071ACD is currently designated as Last Time Buy, indicating that the original packaging configuration (Tube) is being phased out. Identification of equivalent substitute parts is necessary to ensure continued component availability and to support procurement strategies for production environments.

Key Parameters

Parameter	Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	1	—
Slew Rate	45	V/µs
Gain Bandwidth Product	10	MHz
Current - Input Bias	20	pA
Voltage - Input Offset	470	µV
Current - Supply	1.7	mA
Current - Output / Channel	48	mA
Voltage - Supply Span (Min)	4.5	V
Voltage - Supply Span (Max)	38	V
Operating Temperature	0 to 70	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TLE2071ACD is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

Amplifier Type: J-FET input architecture
Number of Circuits: Single circuit configuration
Slew Rate: 45 V/µs or greater
Gain Bandwidth Product: 10 MHz or greater
Current - Input Bias: 20 pA or lower
Voltage - Input Offset: 470 µV or lower
Current - Supply: 1.7 mA or lower
Current - Output / Channel: 48 mA or greater
Voltage - Supply Span: Minimum 4.5 V, Maximum 38 V or greater
Operating Temperature: 0°C to 70°C minimum coverage

Mechanical Compatibility Criteria:

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

Compliance Criteria:

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

Substitute parts are grouped into two categories: direct equivalents from Texas Instruments (same base product number with alternative packaging) and functional equivalents from other manufacturers (Analog Devices) that meet or exceed the electrical specifications within the defined operating envelope.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (µV)	Supply Current (mA)	Output Current (mA)	Supply Span Min (V)	Supply Span Max (V)	Temp Range (°C)	Packaging	Product Status
TLE2071ACD	Texas Instruments	J-FET	45	10	20	470	1.7	48	4.5	38	0 to 70	Tube	Last Time Buy
TLE2071ACDR	Texas Instruments	J-FET	45	10	20	470	1.7	48	4.5	38	0 to 70	Tape & Reel	Active
AD8610ARZ	Analog Devices Inc.	J-FET	60	25	3	85	3	45	10	26	-40 to 125	Tube	Active
AD8610ARZ-REEL	Analog Devices Inc.	J-FET	60	25	3	85	3	45	10	26	-40 to 125	Cut Tape & Digi-Reel	Active
AD8610ARZ-REEL7	Analog Devices Inc.	J-FET	60	25	3	85	3	45	10	26	-40 to 125	Cut Tape & Digi-Reel	Active
AD8610BRZ	Analog Devices Inc.	J-FET	60	25	3	45	3	45	10	26	-40 to 125	Tube	Active
AD8610BRZ-REEL	Analog Devices Inc.	J-FET	60	25	3	45	3	45	10	26	-40 to 125	Not Specified	Active
AD8610BRZ-REEL7	Analog Devices Inc.	J-FET	60	25	3	45	3	45	10	26	-40 to 125	Cut Tape & Digi-Reel	Active
AD847JRZ	Analog Devices Inc.	General Purpose	300	50	3300	500	5.3	32	9	36	0 to 70	Tube	Active
AD847JRZ-REEL	Analog Devices Inc.	General Purpose	300	50	3300	500	5.3	32	9	36	0 to 70	Tape & Reel	Active
AD847JRZ-REEL7	Analog Devices Inc.	General Purpose	300	50	3300	500	5.3	32	9	36	0 to 70	Cut Tape & Digi-Reel	Active

Engineering Selection Recommendations

Primary Substitute (Recommended):

The TLE2071ACDR is the manufacturer-recommended direct substitute for the TLE2071ACD. This part maintains identical electrical specifications and operating characteristics while transitioning from Tube packaging to Tape & Reel (TR) packaging. The TLE2071ACDR is in Active product status with significantly higher inventory availability (3320 pieces versus 750 pieces). Both parts are ROHS3 Compliant and carry identical compliance certifications. Selection of TLE2071ACDR eliminates obsolescence risk associated with the Last Time Buy status of the original part.

Secondary Substitutes (J-FET Amplifiers):

The AD8610 series (AD8610ARZ, AD8610ARZ-REEL, AD8610ARZ-REEL7, AD8610BRZ, AD8610BRZ-REEL, AD8610BRZ-REEL7) from Analog Devices Inc. provides functional equivalence with enhanced electrical performance. These parts exceed the TLE2071ACD specifications in slew rate (60 V/µs versus 45 V/µs), gain bandwidth product (25 MHz versus 10 MHz), and input bias current (3 pA versus 20 pA). The AD8610 series operates across an extended temperature range (-40°C to 125°C versus 0°C to 70°C). All AD8610 variants are in Active product status with substantial inventory availability. The AD8610BRZ and AD8610BRZ-REEL variants feature superior input offset voltage (45 µV versus 85 µV for AD8610A variants). Selection of AD8610 series parts is appropriate for applications requiring enhanced performance margins or extended operating temperature coverage.

Alternative Substitutes (General Purpose Amplifiers):

The AD847 series (AD847JRZ, AD847JRZ-REEL, AD847JRZ-REEL7) represents a general-purpose amplifier alternative with significantly higher slew rate (300 V/µs) and gain bandwidth product (50 MHz). However, this series exhibits substantially higher input bias current (3.3 µA versus 20 pA) and requires higher minimum supply voltage (9 V versus 4.5 V). The AD847 series is suitable only for applications where the TLE2071ACD's J-FET input characteristics are not critical and where higher slew rate performance is beneficial.

All substitute parts maintain 8-SOIC surface mount packaging compatibility, ROHS3 compliance, and MSL 1 moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can TLE2071ACDR be used as a direct replacement for TLE2071ACD?

A: Yes. The TLE2071ACDR is the manufacturer-recommended direct substitute. Both parts share identical electrical specifications, operating characteristics, and 8-SOIC package geometry. The only difference is packaging format: TLE2071ACD is supplied in Tube, while TLE2071ACDR is supplied in Tape & Reel. Both are ROHS3 Compliant with MSL 1 rating.

Q: What is the primary reason to substitute the TLE2071ACD?

A: The TLE2071ACD is designated Last Time Buy, indicating the Tube packaging configuration is being discontinued. The TLE2071ACDR provides continuity of supply in the active Tape & Reel format. Additionally, the TLE2071ACDR offers higher inventory availability (3320 pieces versus 750 pieces).

Q: Are AD8610 series parts compatible with TLE2071ACD applications?

A: AD8610 series parts are mechanically and functionally compatible within the 8-SOIC package. However, electrical differences exist. The AD8610 series provides superior performance (higher slew rate, higher gain bandwidth product, lower input bias current) and extended temperature range (-40°C to 125°C versus 0°C to 70°C). Applications designed for TLE2071ACD specifications will operate with AD8610 parts, but the enhanced performance characteristics may not be utilized. Verify that the higher supply voltage requirement (minimum 10 V for AD8610 versus 4.5 V for TLE2071ACD) is compatible with your power supply design.

Q: Why do AD8610ARZ and AD8610BRZ variants differ in input offset voltage?

A: The AD8610ARZ variant specifies 85 µV input offset voltage, while the AD8610BRZ variant specifies 45 µV. Both are J-FET amplifiers in the same package with identical other electrical parameters. The AD8610BRZ represents a tighter specification grade. Selection depends on application requirements for input offset voltage performance.

Q: Can AD847 series parts replace TLE2071ACD?

A: AD847 series parts are not recommended as direct replacements. While mechanically compatible in 8-SOIC packaging, the AD847 is a general-purpose amplifier with fundamentally different input characteristics. The AD847 exhibits input bias current of 3.3 µA compared to TLE2071ACD's 20 pA, representing a 165,000-fold increase. The AD847 also requires minimum 9 V supply voltage versus 4.5 V for TLE2071ACD. Use AD847 series only when application requirements specifically permit general-purpose amplifier characteristics and higher input bias current.

Q: What packaging options are available for substitutes?

A: Substitute parts are available in multiple packaging formats: Tube, Tape & Reel (TR), and Cut Tape & Digi-Reel (CT). All variants maintain identical 8-SOIC (0.154", 3.90mm Width) case geometry and surface mount mounting type. Packaging selection depends on production volume and assembly equipment compatibility. Tube packaging is suitable for lower-volume applications, while Tape & Reel and Cut Tape & Digi-Reel formats support automated assembly processes.

Q: Are all substitute parts ROHS3 Compliant?

A: Yes. All substitute parts listed in this reference maintain ROHS3 Compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the TLE2071ACD.

Q: What is the inventory status of substitute parts?

A: TLE2071ACDR (3320 pieces), AD8610ARZ-REEL (50400 pieces), AD8610ARZ-REEL7 (3525 pieces), AD8610BRZ-REEL7 (2040 pieces), and AD847JRZ-REEL (4900 pieces) represent the highest-availability options. Inventory levels support both prototype and production-volume requirements.

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