TLE2161IDRG4 Equivalent & Substitute Parts

Part Overview

The TLE2161IDRG4 is a J-FET input operational amplifier manufactured by Texas Instruments in the Excalibur™ series. This single-circuit, 8-SOIC surface mount device is designed for applications requiring low input bias current and high input impedance characteristics. The part is currently discontinued at DiGi Electronics, with 1,415 pieces available as new original stock. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.

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	600	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	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the TLE2161IDRG4 are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

Amplifier Type: J-FET input architecture
Number of Circuits: Single circuit configuration
Package / Case: 8-SOIC form factor (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Supply Voltage Range: Minimum 7V to 9V; Maximum 36V
Operating Temperature Range: Minimum -40°C; Maximum 85°C or higher

Performance Parameters (Allowable Variation):

Slew Rate: 10V/µs to 20V/µs
Gain Bandwidth Product: 5 MHz to 8.5 MHz
Input Bias Current: 4 pA to 25 pA
Input Offset Voltage: 30 µV to 600 µV
Supply Current: 1.35 mA to 3.5 mA
Output Current: 25 mA to 80 mA

Substitutes are grouped into two categories: direct Texas Instruments alternatives (TLE2161IDR) and cross-manufacturer equivalents from Analog Devices Inc. and Renesas Electronics Corporation. All substitutes maintain 8-SOIC packaging, surface mount configuration, and ROHS3 compliance.

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 Min (V)	Supply Max (V)	Temp Range (°C)	Package	Status
TLE2161IDRG4	Texas Instruments	J-FET	10	6.4	4	600	0.290	80	7	36	-40 to 85	8-SOIC	Discontinued
TLE2161IDR	Texas Instruments	J-FET	10	6.4	4	600	0.290	80	7	36	-40 to 85	8-SOIC	Last Time Buy
AD711JRZ	Analog Devices Inc.	J-FET	20	4	15	300	2.5	25	9	36	0 to 70	8-SOIC	Active
AD711JRZ-REEL	Analog Devices Inc.	J-FET	20	4	15	300	2.5	25	9	36	0 to 70	8-SOIC	Active
AD711JRZ-REEL7	Analog Devices Inc.	J-FET	20	4	15	300	2.5	25	9	36	0 to 70	8-SOIC	Active
AD8510ARZ	Analog Devices Inc.	J-FET	20	8	25	100	2.2	70	9	36	-40 to 125	8-SOIC	Active
AD8510ARZ-REEL	Analog Devices Inc.	J-FET	20	8	25	100	2.2	70	9	36	-40 to 125	8-SOIC	Active
AD8510ARZ-REEL7	Analog Devices Inc.	J-FET	20	8	25	100	2.2	70	9	36	-40 to 125	8-SOIC	Active
ADA4000-1ARZ	Analog Devices Inc.	J-FET	20	5	5	200	1.35	28	8	36	-40 to 125	8-SOIC	Active
ADA4000-1ARZ-R7	Analog Devices Inc.	J-FET	20	5	5	200	1.35	28	8	36	-40 to 125	8-SOIC	Active
HA9P5127-5ZX96	Renesas Electronics Corporation	General Purpose	10	8.5	15	30	3.5	25	10	30	0 to 75	8-SOIC	Active

Engineering Selection Recommendations

Primary Substitute (Recommended for Direct Replacement):

TLE2161IDR from Texas Instruments is the primary substitute. This part maintains identical electrical specifications to the TLE2161IDRG4, including slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current, and operating temperature range. The only difference is packaging format (Tape & Reel versus individual packaging). Product status is Last Time Buy, indicating continued availability with defined end-of-life timeline. ROHS3 compliance and MSL rating are identical.

Secondary Substitutes (Cross-Manufacturer Alternatives):

AD711JRZ, AD711JRZ-REEL, and AD711JRZ-REEL7 from Analog Devices Inc. are J-FET input operational amplifiers in 8-SOIC packaging with active product status. These parts feature higher slew rate (20V/µs) and lower input offset voltage (300 µV). However, they have higher input bias current (15 pA), lower output current capability (25 mA), and narrower operating temperature range (0°C to 70°C). These parts are suitable for applications where the original temperature range is not required and higher slew rate is beneficial.

AD8510ARZ, AD8510ARZ-REEL, and AD8510ARZ-REEL7 from Analog Devices Inc. offer enhanced performance with higher gain bandwidth product (8 MHz), lower input offset voltage (100 µV), and extended operating temperature range (-40°C to 125°C). These parts have higher input bias current (25 pA) and lower supply current (2.2 mA). They are suitable for precision applications requiring wider temperature operation.

ADA4000-1ARZ and ADA4000-1ARZ-R7 from Analog Devices Inc. provide the lowest input bias current (5 pA) and lowest supply current (1.35 mA) among substitutes, with extended temperature range (-40°C to 125°C). These parts are optimized for ultra-low power and high-impedance applications.

HA9P5127-5ZX96 from Renesas Electronics Corporation is a general-purpose amplifier with 8-SOIC packaging and active status. This part differs in amplifier type classification and has narrower supply voltage range (10V to 30V) and operating temperature range (0°C to 75°C). It is suitable only for applications not requiring J-FET input characteristics and within the specified voltage and temperature limits.

All substitutes maintain ROHS3 compliance, MSL rating of 1 (Unlimited), and 8-SOIC surface mount packaging. Selection should be based on specific application requirements for temperature range, supply voltage, input bias current, and slew rate performance.

Frequently Asked Questions (FAQ)

Q: Can TLE2161IDR directly replace TLE2161IDRG4?

A: Yes. TLE2161IDR is the direct equivalent with identical electrical specifications. The difference is packaging format: TLE2161IDRG4 is supplied in individual packaging, while TLE2161IDR is supplied in Tape & Reel format. Both are 8-SOIC surface mount packages with identical pin configuration and electrical performance.

Q: What is the key difference between TLE2161IDRG4 and AD711JRZ?

A: Both are J-FET input operational amplifiers in 8-SOIC packaging. AD711JRZ has higher slew rate (20V/µs versus 10V/µs) and lower input offset voltage (300 µV versus 600 µV), but higher input bias current (15 pA versus 4 pA), lower output current (25 mA versus 80 mA), and narrower operating temperature range (0°C to 70°C versus -40°C to 85°C). AD711JRZ is suitable for applications not requiring the full temperature range or high output current.

Q: Why does HA9P5127-5ZX96 have a different amplifier type classification?

A: HA9P5127-5ZX96 is classified as a general-purpose amplifier rather than J-FET input. While it maintains 8-SOIC packaging and similar performance metrics, it does not feature J-FET input architecture. This part is suitable only for applications where J-FET input characteristics are not required.

Q: What is the significance of packaging variants like -REEL and -REEL7?

A: These designations indicate different tape and reel packaging formats for automated assembly. -REEL indicates standard Tape & Reel packaging, while -REEL7 indicates Cut Tape and Digi-Reel® format. Both formats contain identical die and electrical specifications; the difference is in packaging presentation for manufacturing processes. Selection depends on assembly equipment compatibility.

Q: Can I use AD8510ARZ-REEL7 in an application designed for TLE2161IDRG4?

A: AD8510ARZ-REEL7 is compatible for most applications. It maintains J-FET input architecture, 8-SOIC packaging, and supply voltage range (9V to 36V). However, it has higher input bias current (25 pA versus 4 pA), lower output current (70 mA versus 80 mA), and extended operating temperature range (-40°C to 125°C). Verify that the application can tolerate these parameter differences before substitution.

Q: What is the advantage of ADA4000-1ARZ over other substitutes?

A: ADA4000-1ARZ offers the lowest input bias current (5 pA) and lowest supply current (1.35 mA) among all substitutes, with extended operating temperature range (-40°C to 125°C). These characteristics make it optimal for ultra-low power applications and high-impedance signal conditioning where minimizing input loading is critical.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and MSL rating of 1 (Unlimited), matching the original TLE2161IDRG4 specifications. This ensures compatibility with environmental and regulatory requirements.

Q: What supply voltage range must I verify before substitution?

A: The original TLE2161IDRG4 operates from 7V to 36V. Most substitutes operate from 9V to 36V, requiring a minimum 2V higher supply voltage. HA9P5127-5ZX96 operates from 10V to 30V, with both higher minimum and lower maximum supply voltage. Verify your application's supply voltage falls within the substitute part's specified range.

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