OPA2107AP Equivalent & Substitute Parts

Part Overview

The OPA2107AP is a general-purpose operational amplifier manufactured by Texas Instruments, featuring two circuits in an 8-PDIP through-hole package. This device is classified as obsolete, though 4,794 units remain in stock. The OPA2107AP operates across a wide supply voltage range (9V to 36V) and is suitable for applications requiring low input bias current (4 pA) and moderate slew rate performance (18V/µs). Due to its obsolete status, identifying functionally equivalent active alternatives is essential for new designs and long-term component availability planning.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Slew Rate	18	V/µs
Gain Bandwidth Product	4.5	MHz
Current - Input Bias	4	pA
Voltage - Input Offset	100	µV
Current - Supply (x2 Channels)	4.5	mA
Current - Output / Channel	40	mA
Voltage - Supply Span (Min)	9	V
Voltage - Supply Span (Max)	36	V
Operating Temperature Range	-25 to 85	°C
Mounting Type	Through Hole	—
Package / Case	8-DIP (0.300", 7.62mm)	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the OPA2107AP is determined by the following critical parameters:

Primary Substitution Criteria:

Number of circuits: 2 (dual-channel requirement)
Package type: 8-DIP through-hole configuration
Supply voltage range: Minimum 9V, maximum 36V
Amplifier type: General purpose or compatible topology
Input bias current: Low-leakage performance (≤ 50 pA acceptable)
Slew rate: Minimum 13V/µs for general-purpose applications
Gain bandwidth product: 4 MHz or higher

Substitution Categories:

Category 1: Direct Package Equivalents (8-DIP Through-Hole) Parts maintaining identical through-hole 8-DIP packaging with compatible electrical specifications. These include J-FET input amplifiers and general-purpose designs with overlapping supply voltage ranges.

Category 2: Surface-Mount Alternatives (8-SOIC) The OPA2107AU/2K5 provides electrical equivalence with identical electrical characteristics but requires surface-mount assembly capability. This part is active and recommended by the manufacturer as a modern alternative.

Category 3: Specialized Topology Alternatives Parts with different amplifier topologies (audio, J-FET input) that maintain core dual-circuit, 8-DIP configuration and compatible supply voltage specifications.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (µV)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package	Status
OPA2107AP	Texas Instruments	General Purpose	18	4.5	4	100	9	36	-25 to 85	8-DIP	Obsolete
OPA2107AU/2K5	Texas Instruments	General Purpose	18	4.5	4	100	9	36	-25 to 85	8-SOIC	Active
LF353N/NOPB	Texas Instruments	J-FET	13	4	50	5000	10	36	0 to 70	8-DIP	Active
OPA1688ID	Texas Instruments	Audio	8	10	10	250	4.5	36	-40 to 85	8-SOIC	Active
AD712JNZ	Analog Devices Inc.	J-FET	20	4	25	300	9	36	0 to 70	8-DIP	Active
AD712KNZ	Analog Devices Inc.	J-FET	20	4	25	300	9	36	0 to 70	8-DIP	Active
LT1057CN8#PBF	Analog Devices Inc.	J-FET	13	5	7	200	20	36	0 to 70	8-DIP	Active
LT1113CN8#PBF	Analog Devices Inc.	J-FET	3.9	5.6	300	550	9	40	-40 to 85	8-DIP	Active
LT1169CN8#PBF	Analog Devices Inc.	J-FET	4.2	5.3	4	600	9	40	0 to 70	8-DIP	Active
MUSES8820D	Nisshinbo Micro Devices Inc.	Audio	5	11	100	300	7	32	-40 to 85	8-DIP	Active
OP249FZ	Analog Devices Inc.	J-FET	22	4.7	30	200	9	36	-40 to 85	8-CDIP	Active

Engineering Selection Recommendations

Primary Recommendation: OPA2107AU/2K5

The OPA2107AU/2K5 is the manufacturer-recommended substitute, offering identical electrical specifications to the OPA2107AP. This part maintains the same slew rate (18V/µs), gain bandwidth product (4.5 MHz), input bias current (4 pA), and supply voltage range (9V to 36V). The primary difference is packaging: surface-mount 8-SOIC instead of through-hole 8-DIP. This part is active with 3,254 units in stock and carries ROHS3 compliance. Selection of this part is appropriate for new designs where surface-mount assembly is feasible.

Through-Hole Package Alternatives:

For applications requiring through-hole mounting, the following active parts provide functional substitution:

AD712JNZ and AD712KNZ (Analog Devices Inc.) maintain the 8-DIP through-hole package with compatible supply voltage range (9V to 36V). These J-FET input amplifiers feature higher slew rate (20V/µs) and are suitable for applications where the OPA2107AP's general-purpose topology can be replaced with J-FET input characteristics. Both parts are active with inventory availability.

LT1057CN8#PBF (Analog Devices Inc.) provides J-FET input topology in 8-DIP packaging with 5 MHz gain bandwidth product and 13V/µs slew rate. This part requires minimum 20V supply voltage, limiting applicability to designs with higher supply rails.

LT1169CN8#PBF (Analog Devices Inc.) offers the lowest input bias current (4 pA, matching OPA2107AP) in J-FET topology with 8-DIP packaging. Supply voltage range is 9V to 40V, compatible with OPA2107AP applications. This part is active with 938 units in stock.

MUSES8820D (Nisshinbo Micro Devices Inc.) provides audio-grade amplification in 8-DIP through-hole package with extended temperature range (-40°C to 85°C). This part is suitable for audio applications requiring higher gain bandwidth product (11 MHz) and is active with 2,945 units in stock.

OP249FZ (Analog Devices Inc.) is a J-FET input amplifier in 8-CDIP ceramic package with 22V/µs slew rate and 4.7 MHz gain bandwidth product. This part is active and suitable for applications requiring ceramic packaging and high slew rate performance.

All recommended substitutes carry ROHS3 compliance and REACH unaffected status, matching the regulatory compliance of the OPA2107AP.

Frequently Asked Questions (FAQ)

Q: Can the OPA2107AU/2K5 directly replace the OPA2107AP in existing through-hole PCB designs?

A: No. The OPA2107AU/2K5 uses 8-SOIC surface-mount packaging, while the OPA2107AP uses 8-DIP through-hole packaging. PCB layout and assembly process modifications are required. For through-hole designs, select alternatives such as AD712JNZ, LT1169CN8#PBF, or MUSES8820D.

Q: What is the primary difference between the OPA2107AP and LF353N/NOPB?

A: Both are dual-channel amplifiers in 8-DIP through-hole packages with compatible supply voltage ranges. The OPA2107AP is a general-purpose amplifier with 4 pA input bias current, while the LF353N/NOPB is a J-FET input amplifier with 50 pA input bias current. The LF353N/NOPB has lower slew rate (13V/µs vs. 18V/µs) and significantly higher input offset voltage (5 mV vs. 100 µV). Selection depends on application requirements for input bias current and offset voltage performance.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance status, matching the regulatory compliance of the OPA2107AP. All parts are also REACH unaffected.

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

A: The OPA2107AP and LT1169CN8#PBF both feature 4 pA input bias current. The LT1169CN8#PBF is an active J-FET input alternative available in 8-DIP through-hole packaging with 938 units in stock.

Q: Can J-FET input amplifiers (AD712JNZ, LT1057CN8#PBF, LT1169CN8#PBF) replace the general-purpose OPA2107AP?

A: J-FET input amplifiers are functionally compatible substitutes for general-purpose applications. Key differences include input bias current characteristics, input offset voltage, and slew rate. J-FET input amplifiers typically exhibit lower input bias current but higher input offset voltage. Selection depends on circuit requirements for these parameters. All listed J-FET alternatives maintain the dual-circuit, 8-DIP configuration and compatible supply voltage range.

Q: What is the operating temperature range difference between OPA2107AP and substitute parts?

A: The OPA2107AP operates from -25°C to 85°C. Most substitute parts operate from 0°C to 70°C or -40°C to 85°C. The OPA1688ID, MUSES8820D, and OP249FZ extend to -40°C minimum temperature. Application requirements for low-temperature operation should guide part selection.

Q: Is the OPA2107AU/2K5 the only active Texas Instruments substitute?

A: No. Texas Instruments offers the OPA2107AU/2K5 as the direct electrical equivalent in surface-mount packaging. The LF353N/NOPB and OPA1688ID are additional active Texas Instruments alternatives with different topologies and packaging. The OPA2107AU/2K5 is the manufacturer-recommended substitute for new designs.

Q: What inventory status should influence substitute part selection?

A: All listed substitute parts are active with current inventory availability. The OPA2107AP remains in stock with 4,794 units. For long-term supply assurance, active parts with higher inventory levels (LF353N/NOPB with 7,310 units, OPA1688ID with 7,897 units) provide extended availability. Inventory levels should be verified with suppliers for production planning.

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