TLE2071AIDG4 Equivalent & Substitute Parts

Part Overview

The TLE2071AIDG4 is a J-FET input operational amplifier manufactured by Texas Instruments, packaged in 8-SOIC surface mount configuration. This device is classified as Last Time Buy, indicating discontinued production with limited remaining inventory (1099 pcs). The TLE2071AIDG4 belongs to the Excalibur™ series and is ROHS3 compliant with unlimited moisture sensitivity rating.

Substitution becomes necessary due to the Last Time Buy status and potential future unavailability. Alternative parts must maintain electrical compatibility within the J-FET amplifier category while meeting the same mechanical packaging requirements.

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	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution logic for the TLE2071AIDG4 is based on the following critical parameters:

Primary Substitution Criteria:

Amplifier Type: J-FET (low input bias current requirement)
Package / Case: 8-SOIC (0.154", 3.90mm Width) for mechanical compatibility
Number of Circuits: 1 (single amplifier per package)
Mounting Type: Surface Mount

Secondary Compatibility Parameters:

Slew Rate: 45 V/µs or higher
Gain Bandwidth Product: 10 MHz or higher
Voltage - Supply Span: Must encompass 4.5 V to 38 V range
Operating Temperature: Must include -40°C to 85°C range
RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories:

Category 1: Direct Texas Instruments Substitutes (Same Base Product)

TLE2071AIDR: Active product status with identical electrical specifications and packaging

Category 2: Analog Devices J-FET Alternatives (AD8610 Series)

AD8610ARZ, AD8610ARZ-REEL, AD8610BRZ, AD8610BRZ-REEL, AD8610BRZ-REEL7: Enhanced J-FET performance with higher slew rate (60 V/µs) and gain bandwidth product (25 MHz)

Category 3: General Purpose Amplifier Alternatives (AD847 Series)

AD847JRZ, AD847JRZ-REEL, AD847JRZ-REEL7: General purpose amplifiers with significantly higher performance specifications but different amplifier topology

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (µV)	Supply Span (V)	Temp Range (°C)	Package	Status
TLE2071AIDG4	Texas Instruments	J-FET	45	10	20	470	4.5–38	-40 to 85	8-SOIC	Last Time Buy
TLE2071AIDR	Texas Instruments	J-FET	45	10	20	470	4.5–38	-40 to 85	8-SOIC	Active
AD8610ARZ	Analog Devices Inc.	J-FET	60	25	3	85	10–26	-40 to 125	8-SOIC	Active
AD8610ARZ-REEL	Analog Devices Inc.	J-FET	60	25	3	85	10–26	-40 to 125	8-SOIC	Active
AD8610ARZ-REEL7	Analog Devices Inc.	J-FET	60	25	3	85	10–26	-40 to 125	8-SOIC	Active
AD8610BRZ	Analog Devices Inc.	J-FET	60	25	3	45	10–26	-40 to 125	8-SOIC	Active
AD8610BRZ-REEL	Analog Devices Inc.	J-FET	60	25	3	45	10–26	-40 to 125	8-SOIC	Active
AD8610BRZ-REEL7	Analog Devices Inc.	J-FET	60	25	3	45	10–26	-40 to 125	8-SOIC	Active
AD847JRZ	Analog Devices Inc.	General Purpose	300	50	3300	500	9–36	0 to 70	8-SOIC	Active
AD847JRZ-REEL	Analog Devices Inc.	General Purpose	300	50	3300	500	9–36	0 to 70	8-SOIC	Active
AD847JRZ-REEL7	Analog Devices Inc.	General Purpose	300	50	3300	500	9–36	0 to 70	8-SOIC	Active

Engineering Selection Recommendations

Tier 1 Recommendation: TLE2071AIDR

The TLE2071AIDR is the primary substitute for TLE2071AIDG4. Both parts share identical electrical specifications, the same J-FET amplifier topology, and 8-SOIC packaging. The TLE2071AIDR maintains Active product status with significantly higher inventory availability (15,240 pcs). Both parts are ROHS3 compliant and carry identical compliance certifications (REACH Unaffected, EAR99, HTSUS 8542.33.0001). This substitution requires no circuit redesign or performance verification.

Tier 2 Recommendation: AD8610 Series (ARZ, ARZ-REEL, BRZ, BRZ-REEL, BRZ-REEL7)

The AD8610 series from Analog Devices provides enhanced J-FET performance with higher slew rate (60 V/µs vs. 45 V/µs) and gain bandwidth product (25 MHz vs. 10 MHz). All variants maintain 8-SOIC packaging and J-FET amplifier topology. The AD8610BRZ variants offer superior input offset voltage (45 µV vs. 470 µV). Extended operating temperature range (-40°C to 125°C) provides additional margin. All AD8610 variants are ROHS3 compliant and Active status. Supply voltage range differs (10–26 V vs. 4.5–38 V), requiring verification for applications operating below 10 V or above 26 V.

Tier 3 Recommendation: AD847 Series (JRZ, JRZ-REEL, JRZ-REEL7)

The AD847 series represents a topology change from J-FET to general purpose amplifier architecture. These parts deliver significantly higher performance (300 V/µs slew rate, 50 MHz gain bandwidth product) but exhibit substantially higher input bias current (3.3 µA vs. 20 pA). The AD847 series is suitable only for applications where high input bias current is acceptable. Operating temperature range is restricted to 0°C to 70°C, excluding the -40°C lower limit of the original part. Supply voltage range (9–36 V) does not accommodate the 4.5 V minimum of TLE2071AIDG4.

Frequently Asked Questions (FAQ)

Q1: Can TLE2071AIDR directly replace TLE2071AIDG4 without circuit modification?

Yes. The TLE2071AIDR is electrically and mechanically identical to TLE2071AIDG4. Both parts feature the same J-FET amplifier topology, identical electrical specifications, and 8-SOIC packaging. The only difference is product status (Active vs. Last Time Buy) and packaging format. No circuit redesign is required.

Q2: What is the key difference between TLE2071AIDR and AD8610 series substitutes?

The TLE2071AIDR maintains identical specifications to the original part. The AD8610 series offers enhanced performance with higher slew rate and gain bandwidth product, but operates within a narrower supply voltage range (10–26 V vs. 4.5–38 V). Applications requiring operation below 10 V or above 26 V must use TLE2071AIDR or TLE2071AIDG4.

Q3: Why is the AD847 series listed as a substitute if it has different specifications?

The AD847 series is listed based on the provided substitute data, but represents a significant topology change from J-FET to general purpose amplifier. The substantially higher input bias current (3300 pA vs. 20 pA) makes this unsuitable for high-impedance input applications. Use AD847 only if your circuit can tolerate microampere-level input bias currents and does not require operation below 0°C or above 70°C.

Q4: What packaging options are available for AD8610 substitutes?

AD8610 variants are available in three packaging formats: Tube (AD8610ARZ, AD8610BRZ), Cut Tape & Digi-Reel® (AD8610ARZ-REEL, AD8610ARZ-REEL7, AD8610BRZ-REEL, AD8610BRZ-REEL7). Select based on your procurement and assembly requirements. All variants use identical 8-SOIC package geometry.

Q5: Are all substitute parts ROHS3 compliant?

Yes. All substitute parts listed (TLE2071AIDR, AD8610 series, AD847 series) are ROHS3 compliant with MSL rating of 1 (Unlimited). All carry REACH Unaffected status and EAR99 export classification.

Q6: What is the inventory status of substitute parts?

TLE2071AIDR: 15,240 pcs (highest availability). AD8610ARZ-REEL: 50,400 pcs (largest stock). AD8610ARZ: 2,100 pcs. AD8610BRZ-REEL: 2,000 pcs. AD8610BRZ-REEL7: 2,040 pcs. AD847JRZ-REEL: 4,900 pcs. AD847JRZ: 1,313 pcs. AD847JRZ-REEL7: 1,190 pcs.

Q7: Can I use AD8610 in a circuit designed for TLE2071AIDG4 operating at 4.5 V supply?

No. The AD8610 series minimum supply voltage is 10 V. Circuits operating at 4.5 V supply must use TLE2071AIDR or remain with TLE2071AIDG4. Attempting to operate AD8610 below 10 V will result in out-of-specification performance.

Q8: What is the temperature operating range difference between TLE2071AIDG4 and AD8610?

TLE2071AIDG4 operates from -40°C to 85°C. AD8610 series extends to -40°C to 125°C, providing 40°C additional margin at the upper temperature limit. For applications requiring operation above 85°C, AD8610 is required.

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