TLE2161AIDG4 Equivalent & Substitute Parts

Part Overview

The TLE2161AIDG4 is a J-FET input operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device is part of the Excalibur™ series and is classified as discontinued at DiGi Electronics. The TLE2161AIDG4 delivers single-circuit amplification with a slew rate of 10V/µs and gain bandwidth product of 6.4 MHz, operating across a supply voltage range of 7V to 36V and temperature range of -40°C to 85°C. Due to its discontinued status, equivalent and substitute parts are necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	1	—
Slew Rate	10	V/µs
Gain Bandwidth Product	6.4	MHz
Current - Input Bias	4	pA
Voltage - Input Offset	500	µV
Current - Supply	290	µA
Current - Output / Channel	80	mA
Voltage - Supply Span (Min)	7	V
Voltage - Supply Span (Max)	36	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 of the TLE2161AIDG4 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Amplifier Type: J-FET input configuration
Number of Circuits: Single circuit (1)
Package / Case: 8-SOIC form factor (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Supply Voltage Range: Minimum 7V to 36V maximum (or compatible subset)
Operating Temperature Range: Must support -40°C to 85°C or extended range

Secondary Compatibility Parameters:

Slew Rate: 10V/µs or greater
Gain Bandwidth Product: 6.4 MHz or greater
Current - Input Bias: 4 pA or lower (lower is acceptable)
Voltage - Input Offset: 500 µV or lower (lower is acceptable)
Current - Supply: 290µA or lower (lower is acceptable)
Current - Output / Channel: 80 mA or greater

Substitute parts must maintain compliance with RoHS3 and MSL Level 1 specifications. Parts are grouped by product status (Active vs. Obsolete) and packaging configuration (Tube, Tape & Reel, Cut Tape & Digi-Reel).

Parameter Comparison

Part Number	Manufacturer	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (µV)	Supply Current (mA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package	Status
TLE2161AIDG4	Texas Instruments	10	6.4	4	500	0.290	80	7	36	-40 to 85	8-SOIC	Discontinued
TLE2161AID	Texas Instruments	10	6.4	4	500	0.290	80	7	36	-40 to 85	8-SOIC	Obsolete
AD711JRZ	Analog Devices Inc.	20	4	15	300	2.5	25	9	36	0 to 70	8-SOIC	Active
AD711JRZ-REEL	Analog Devices Inc.	20	4	15	300	2.5	25	9	36	0 to 70	8-SOIC	Active
AD711JRZ-REEL7	Analog Devices Inc.	20	4	15	300	2.5	25	9	36	0 to 70	8-SOIC	Active
AD8510ARZ	Analog Devices Inc.	20	8	25	100	2.2	70	9	36	-40 to 125	8-SOIC	Active
AD8510ARZ-REEL	Analog Devices Inc.	20	8	25	100	2.2	70	9	36	-40 to 125	8-SOIC	Active
AD8510ARZ-REEL7	Analog Devices Inc.	20	8	25	100	2.2	70	9	36	-40 to 125	8-SOIC	Active
ADA4000-1ARZ	Analog Devices Inc.	20	5	5	200	1.35	28	8	36	-40 to 125	8-SOIC	Active
ADA4000-1ARZ-R7	Analog Devices Inc.	20	5	5	200	1.35	28	8	36	-40 to 125	8-SOIC	Active
LT1792ACS8#PBF	Analog Devices Inc.	3.4	5.6	300	200	4.2	—	9	40	0 to 70	8-SOIC	Active

Engineering Selection Recommendations

Direct Equivalent (Identical Electrical Performance):

TLE2161AID is the manufacturer-recommended equivalent to TLE2161AIDG4. Both parts share identical electrical specifications including 10V/µs slew rate, 6.4 MHz gain bandwidth product, 4 pA input bias current, and 500 µV input offset voltage. The primary difference is packaging configuration (Tube vs. Digi-Reel). TLE2161AID is classified as Obsolete, indicating limited future availability.

Active Substitutes with Enhanced Performance:

AD8510ARZ, AD8510ARZ-REEL, and AD8510ARZ-REEL7 (Analog Devices Inc.) provide superior electrical characteristics while maintaining 8-SOIC package compatibility. These parts deliver doubled slew rate (20V/µs), higher gain bandwidth product (8 MHz), and extended operating temperature range (-40°C to 125°C). Supply voltage range remains 9V to 36V. These devices are Active status with high inventory availability.

AD711JRZ, AD711JRZ-REEL, and AD711JRZ-REEL7 (Analog Devices Inc.) are Active alternatives with 20V/µs slew rate and 8-SOIC packaging. Operating temperature range is limited to 0°C to 70°C, and minimum supply voltage increases to 9V. These parts are suitable for applications not requiring -40°C operation.

ADA4000-1ARZ and ADA4000-1ARZ-R7 (Analog Devices Inc.) offer low input bias current (5 pA), low input offset voltage (200 µV), and extended temperature range (-40°C to 125°C). Slew rate is 20V/µs with 5 MHz gain bandwidth product. Supply current is reduced to 1.35 mA.

Limited Compatibility:

LT1792ACS8#PBF (Analog Devices Inc.) maintains 8-SOIC package and J-FET input configuration but exhibits reduced slew rate (3.4V/µs) and significantly higher input bias current (300 pA). This part is suitable only for applications where slew rate and input bias current specifications are not critical constraints.

All substitute parts maintain RoHS3 compliance and MSL Level 1 moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can TLE2161AID directly replace TLE2161AIDG4?

A: Yes. TLE2161AID is the manufacturer-recommended equivalent with identical electrical specifications. The difference is packaging configuration: TLE2161AIDG4 uses Digi-Reel packaging while TLE2161AID uses Tube packaging. Both are 8-SOIC surface mount devices with identical pin configuration and electrical performance.

Q: What is the primary advantage of AD8510ARZ series over the original TLE2161AIDG4?

A: AD8510ARZ series provides doubled slew rate (20V/µs vs. 10V/µs), higher gain bandwidth product (8 MHz vs. 6.4 MHz), and extended operating temperature range (-40°C to 125°C vs. -40°C to 85°C). Supply voltage range remains compatible (9V to 36V). These parts are Active status with robust inventory availability.

Q: Are all substitute parts available in 8-SOIC package?

A: Yes. All listed substitute parts are housed in 8-SOIC (0.154", 3.90mm Width) surface mount packages, ensuring mechanical and electrical pin compatibility with TLE2161AIDG4.

Q: Which substitute part has the lowest input bias current?

A: ADA4000-1ARZ and ADA4000-1ARZ-R7 feature the lowest input bias current at 5 pA, compared to 4 pA for the original TLE2161AIDG4. All other substitutes have higher input bias currents ranging from 15 pA to 300 pA.

Q: Can LT1792ACS8#PBF be used as a direct replacement?

A: LT1792ACS8#PBF maintains 8-SOIC package and J-FET input configuration but exhibits significantly reduced slew rate (3.4V/µs vs. 10V/µs) and higher input bias current (300 pA vs. 4 pA). This part is suitable only for applications where these performance reductions are acceptable.

Q: What is the difference between AD711JRZ, AD711JRZ-REEL, and AD711JRZ-REEL7?

A: These three parts are electrically identical with 20V/µs slew rate and 4 MHz gain bandwidth product. The differences are packaging configurations: AD711JRZ uses Tube packaging, AD711JRZ-REEL uses Tape & Reel, and AD711JRZ-REEL7 uses Cut Tape & Digi-Reel. All are Active status.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 moisture sensitivity rating, matching the original TLE2161AIDG4 specifications.

Q: What is the minimum supply voltage for AD711 series substitutes?

A: AD711JRZ, AD711JRZ-REEL, and AD711JRZ-REEL7 require a minimum supply voltage of 9V, compared to 7V for TLE2161AIDG4. Maximum supply voltage remains 36V for both.

Q: Which substitute parts support the full -40°C to 85°C temperature range of the original part?

A: TLE2161AID (Obsolete) and AD8510ARZ series support or exceed this range. AD8510ARZ series extends to -40°C to 125°C. AD711 series and LT1792ACS8#PBF are limited to 0°C to 70°C operation.

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