LT1014IN Equivalent & Substitute Parts

Part Overview

The LT1014IN is a general-purpose operational amplifier integrated circuit manufactured by Analog Devices Inc., configured as a 4-circuit device in a 14-pin DIP package. This component is classified as obsolete, indicating that direct procurement from the original manufacturer is no longer available through standard channels. The LT1014IN operates across a wide supply voltage range of 4V to 44V and maintains stable performance across industrial temperature ranges from -40°C to 85°C. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure production availability, and support long-term system maintenance where original components are no longer in active production.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Slew Rate	0.4	V/µs
Gain Bandwidth Product	1	MHz
Current - Input Bias	15	nA
Voltage - Input Offset	60	µV
Current - Supply (x4 Channels)	350	µA
Current - Output / Channel	20	mA
Voltage - Supply Span (Min)	4	V
Voltage - Supply Span (Max)	44	V
Operating Temperature	-40 to 85	°C
Package / Case	14-DIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	—

Substitute Part Grouping Explanation

Substitution of the LT1014IN is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Package type: 14-DIP (0.300", 7.62mm) with Through Hole mounting
Number of circuits: 4 operational amplifiers per package
Supply voltage range: Minimum 4V, Maximum 44V (or compatible subset)
Operating temperature range: Must encompass or match the application requirement
Slew rate: 0.4V/µs or greater
Gain bandwidth product: 1 MHz or greater
Input bias current: 15 nA or lower
Input offset voltage: 60 µV or lower
Output current per channel: 20 mA or greater
Supply current: 350µA (x4 Channels) or lower

Substitution Categories:

Direct Equivalent: Parts with identical electrical specifications and active product status, suitable for direct replacement without circuit modification.

Compatible Substitute: Parts meeting or exceeding all critical parameters with active or last-time-buy status, compatible with existing designs but may require verification of specific application requirements.

Enhanced Performance Substitute: Parts exceeding baseline specifications in slew rate, gain bandwidth product, or output current, suitable for applications requiring improved performance margins.

Parameter Comparison

Part Number	Manufacturer	Product Status	Slew Rate (V/µs)	GBW (MHz)	Input Bias (nA)	Input Offset (µV)	Supply Current (µA)	Output Current (mA)	Supply Max (V)	Temp Range (°C)
LT1014IN	Analog Devices	Obsolete	0.4	1	15	60	350	20	44	-40 to 85
LT1014IN#PBF	Analog Devices	Active	0.4	1	15	60	350	20	44	-40 to 85
LT1014CN	Texas Instruments	Active	0.4	1	12	60	350	20	30	0 to 70
LT1014DIN	Texas Instruments	Last Time Buy	0.4	1	12	60	350	25	30	-40 to 105
LT1014DN	Texas Instruments	Last Time Buy	0.4	1	12	60	350	25	30	0 to 70
TLE2024ACN	Texas Instruments	Last Time Buy	0.7	2.8	45	750	1050	40	40	0 to 70
TLE2024AIN	Texas Instruments	Last Time Buy	0.7	2.8	45	750	1050	40	40	-40 to 85
TLE2024CN	Texas Instruments	Last Time Buy	0.5	2.8	45	1000	1050	40	40	0 to 70
TLE2024IN	Texas Instruments	Last Time Buy	0.5	2.8	45	120	1050	40	40	-40 to 85
TLE2144ACN	Texas Instruments	Active	45	5.9	700	500	13800	50	44	0 to 70
TLE2144AIN	Texas Instruments	Active	45	5.9	700	290	6900	50	44	-40 to 105

Engineering Selection Recommendations

Direct Replacement (Recommended for Immediate Substitution):

LT1014IN#PBF is the primary direct equivalent. This part maintains identical electrical specifications to the obsolete LT1014IN while offering active product status from Analog Devices Inc. The #PBF suffix indicates lead-free, RoHS3 compliant packaging. This substitution requires no circuit modification and provides the highest compatibility assurance. Inventory availability is confirmed at 3490 pieces.

Compatible Substitutes (Suitable for Applications with Relaxed Supply Voltage Requirements):

LT1014CN and LT1014DIN are Texas Instruments variants that meet the core electrical specifications with minor parameter improvements (lower input bias current of 12 nA versus 15 nA). However, these parts operate with a reduced maximum supply voltage of 30V compared to the original 44V specification. Selection of these parts is appropriate only when the application supply voltage does not exceed 30V. LT1014DIN offers extended temperature range (-40°C to 105°C) and higher output current (25 mA versus 20 mA), providing additional performance margin for demanding applications.

Enhanced Performance Substitutes (For Applications Requiring Improved Dynamic Performance):

TLE2024 series (ACN, AIN, CN, IN variants) and TLE2144 series (ACN, AIN variants) provide significantly enhanced performance characteristics including higher slew rates (0.5V/µs to 45V/µs), increased gain bandwidth products (2.8 MHz to 5.9 MHz), and higher output current capabilities (40 mA to 50 mA). These parts are suitable for applications where improved transient response and output drive capability are beneficial. TLE2144 series additionally features rail-to-rail output capability. Selection of enhanced substitutes requires verification that the application can accommodate the increased supply current consumption and that the higher performance characteristics do not introduce stability concerns in existing circuit designs.

Product Status Considerations:

Active status parts (LT1014IN#PBF, LT1014CN, TLE2144ACN, TLE2144AIN) are recommended for new designs and long-term production. Last Time Buy status parts (LT1014DIN, LT1014DN, TLE2024 series) indicate limited future availability and are suitable for existing production support or applications with defined end-of-life dates. Obsolete status (original LT1014IN) indicates no further availability from the manufacturer.

Compliance and Certification:

All substitute parts listed carry RoHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements. Moisture sensitivity level is 1 (Unlimited) for the original part and Not Applicable for all substitutes, indicating no special handling requirements.

Frequently Asked Questions (FAQ)

Q: Can LT1014IN#PBF be used as a direct replacement for the obsolete LT1014IN?

A: Yes. LT1014IN#PBF is the direct equivalent with identical electrical specifications and package configuration. The #PBF designation indicates lead-free, RoHS3 compliant manufacturing. No circuit modification is required. This is the recommended substitution path.

Q: What is the primary limitation of LT1014CN and LT1014DIN compared to the original LT1014IN?

A: The maximum supply voltage is reduced from 44V to 30V. These parts are suitable only for applications where the supply voltage does not exceed 30V. All other electrical parameters meet or exceed the original specification.

Q: When should TLE2024 series parts be selected instead of LT1014 variants?

A: TLE2024 series parts offer higher slew rate (0.5V/µs to 0.7V/µs versus 0.4V/µs), higher gain bandwidth product (2.8 MHz versus 1 MHz), and higher output current (40 mA versus 20 mA). Selection is appropriate when the application requires improved transient response or higher output drive capability. However, supply current consumption is significantly higher (1050µA versus 350µA), which may impact power budget considerations.

Q: What is the difference between TLE2024 and TLE2144 series?

A: TLE2144 series provides rail-to-rail output capability, significantly higher slew rate (45V/µs versus 0.5V/µs to 0.7V/µs), and higher gain bandwidth product (5.9 MHz versus 2.8 MHz). TLE2144 is suitable for applications requiring maximum dynamic performance and rail-to-rail output swing. Supply current consumption is substantially higher (6900µA to 13800µA), requiring careful power supply design.

Q: Are all substitute parts available in the same 14-DIP package?

A: Yes. All substitute parts listed are configured in 14-DIP (0.300", 7.62mm) through-hole packages with identical pinout and mechanical compatibility. Direct socket substitution is possible without PCB modification.

Q: What temperature range should be selected for applications operating below 0°C or above 70°C?

A: For applications requiring operation below 0°C or above 70°C, select parts with extended temperature range: LT1014IN (original, -40°C to 85°C), LT1014DIN (-40°C to 105°C), TLE2024AIN (-40°C to 85°C), or TLE2144AIN (-40°C to 105°C). Standard temperature range parts (0°C to 70°C) are not suitable for extended temperature applications.

Q: Can TLE2144 series parts be used in circuits designed for LT1014?

A: TLE2144 series parts are electrically compatible and can be used as substitutes. However, the significantly higher slew rate (45V/µs versus 0.4V/µs) and gain bandwidth product (5.9 MHz versus 1 MHz) may introduce stability concerns in circuits with marginal compensation. Verification of circuit stability is recommended before production implementation.

Q: What is the significance of the #PBF suffix in part numbers?

A: The #PBF suffix indicates lead-free, RoHS3 compliant manufacturing. This designation is standard for current production parts and meets environmental and regulatory requirements. Parts without this suffix may contain lead and are typically obsolete or last-time-buy inventory.

Q: Are there any moisture sensitivity considerations for these parts?

A: The original LT1014IN has Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements. All substitute parts have Not Applicable moisture sensitivity ratings, also indicating no special handling requirements. Standard storage and handling procedures are appropriate for all parts listed.

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