OPA4130UA Equivalent & Substitute Parts

Part Overview

The OPA4130UA is a J-FET input operational amplifier manufactured by Texas Instruments, configured as a quad (4-circuit) device in a 14-SOIC surface mount package. This device is classified as Active product status and is ROHS3 compliant. The OPA4130UA is suitable for applications requiring low input bias current and low input offset voltage characteristics inherent to J-FET amplifier designs. Substitute parts are identified when equivalent electrical performance parameters and mechanical compatibility are maintained within the specified operating ranges.

Key Parameters

Parameter	Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	4	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Slew Rate	2	V/µs
Gain Bandwidth Product	1	MHz
Current - Input Bias	5	pA
Voltage - Input Offset	200	µV
Current - Supply (x4 Channels)	530	µA
Current - Output / Channel	18	mA
Voltage - Supply Span (Min)	4.5	V
Voltage - Supply Span (Max)	36	V
Operating Temperature	-40 to 85	°C
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	3 (168 Hours)	—

Substitute Part Grouping Explanation

Substitute parts for the OPA4130UA are grouped based on strict adherence to the following electrical and mechanical criteria:

Primary Substitution Criteria:

Amplifier Type: J-FET input configuration
Number of Circuits: 4 (quad configuration)
Package / Case: 14-SOIC form factor (0.154", 3.90mm Width)
Mounting Type: Surface Mount
RoHS Compliance: ROHS3 Compliant
Input Bias Current: ≤ 5 pA (J-FET characteristic)
Input Offset Voltage: ≤ 200 µV
Supply Voltage Range: Minimum 4.5 V, Maximum ≥ 36 V
Operating Temperature: Minimum -40°C, Maximum ≥ 85°C

Secondary Substitution Criteria (Performance Enhancement): Parts exceeding the OPA4130UA specifications in slew rate, gain bandwidth product, or output current capability are listed as substitutes when all primary criteria are met.

Grouping Logic:

Group 1 (Direct J-FET Substitutes): Parts maintaining J-FET amplifier type with equivalent or superior performance
Group 2 (General Purpose Alternatives): Parts with different amplifier type but compatible electrical and mechanical parameters for applications not requiring strict J-FET characteristics
Group 3 (Obsolete/Limited Status): Parts with Active or Obsolete status; engineering selection must account for product lifecycle status

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (µV)	Supply Current (µA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Product Status
OPA4130UA	Texas Instruments	J-FET	2	1	5	200	530	18	4.5	36	-40 to 85	Active
ADA4000-4ARZ	Analog Devices Inc.	J-FET	20	5	5	200	1350	28	8	36	-40 to 125	Active
ADA4000-4ARZ-R7	Analog Devices Inc.	J-FET	20	5	5	200	1350	28	8	36	-40 to 125	Active
LF247DT	STMicroelectronics	J-FET	16	4	20	3000	1400	40	44	44	-40 to 105	Active
LF347D	STMicroelectronics	J-FET	16	3	20	3000	1400	40	44	44	0 to 70	Active
LF347DT	STMicroelectronics	J-FET	16	4	20	3000	1400	40	44	44	0 to 70	Active
ADA4004-4ARZ	Analog Devices Inc.	General Purpose	2.7	12	40	40	—	10	10	30	-40 to 125	Active
ISL28345FBZ-T7A	Renesas Electronics Corporation	General Purpose	0.4	1.2	200	100	500	40	4.5	40	-40 to 125	Obsolete
LM248DT	STMicroelectronics	General Purpose	0.5	1.3	30	1000	2100	25	44	44	-40 to 105	Active
LM2902AWYDT	STMicroelectronics	General Purpose	0.4	1.3	20	2000	1500	40	3	30	-40 to 125	Active
LM324ADR2G	onsemi	General Purpose	—	1	40	2000	1500	40	3	32	0 to 70	Active

Engineering Selection Recommendations

For Direct J-FET Substitution (Preferred):

The ADA4000-4ARZ and ADA4000-4ARZ-R7 (Analog Devices Inc.) are the primary substitutes for the OPA4130UA. Both devices maintain J-FET amplifier architecture with identical input bias current (5 pA) and input offset voltage (200 µV). These parts offer enhanced performance with 20 V/µs slew rate and 5 MHz gain bandwidth product compared to the OPA4130UA baseline. Both are Active product status with ROHS3 compliance. The ADA4000-4ARZ-R7 variant is supplied in Cut Tape & Digi-Reel packaging, while ADA4000-4ARZ is supplied in Tube packaging. Operating temperature range extends to 125°C, exceeding the OPA4130UA specification of 85°C maximum.

For J-FET Substitution with Extended Supply Voltage:

The LF247DT, LF347D, and LF347DT (STMicroelectronics) are J-FET quad amplifiers with fixed supply voltage specification of ±22 V (44 V span). These devices maintain J-FET input characteristics with 20 pA input bias current and 3 mV input offset voltage. Slew rate is 16 V/µs with gain bandwidth product of 3-4 MHz. All three variants are Active product status with ROHS3 compliance and Unlimited MSL rating. Operating temperature ranges from -40°C to 105°C (LF247DT) or 0°C to 70°C (LF347D, LF347DT). These substitutes are suitable when fixed ±22 V dual supply operation is required.

For General Purpose Applications (Non-J-FET):

When J-FET input characteristics are not mandatory, the ADA4004-4ARZ (Analog Devices Inc.) provides general purpose amplification with 12 MHz gain bandwidth product and extended temperature range to 125°C. The LM2902AWYDT (STMicroelectronics) offers automotive-grade qualification (AEC-Q100) with push-pull output configuration and extended lower supply voltage limit (3 V minimum). The LM324ADR2G (onsemi) provides cost-effective general purpose amplification with 1 MHz gain bandwidth product matching the OPA4130UA baseline.

Product Status Considerations:

The ISL28345FBZ-T7A (Renesas Electronics Corporation) is classified as Obsolete and should not be selected for new designs. All other substitute parts listed maintain Active product status, ensuring continued availability and manufacturer support.

Frequently Asked Questions (FAQ)

Q1: Can the ADA4000-4ARZ directly replace the OPA4130UA in existing designs?

A: The ADA4000-4ARZ maintains identical input bias current (5 pA) and input offset voltage (200 µV) specifications, and is packaged in the same 14-SOIC form factor. However, the minimum supply voltage requirement is 8 V compared to the OPA4130UA minimum of 4.5 V. Designs operating at supply voltages below 8 V require verification of circuit operation or selection of an alternative substitute. The enhanced slew rate (20 V/µs vs. 2 V/µs) and gain bandwidth product (5 MHz vs. 1 MHz) may affect circuit stability in applications with tight feedback compensation; circuit simulation or testing is necessary to confirm compatibility.

Q2: What is the difference between ADA4000-4ARZ and ADA4000-4ARZ-R7?

A: Both devices are electrically identical with identical electrical specifications. The primary difference is packaging format: ADA4000-4ARZ is supplied in Tube packaging, while ADA4000-4ARZ-R7 is supplied in Cut Tape & Digi-Reel format. Selection depends on procurement and assembly requirements. The ADA4000-4ARZ-R7 variant has higher inventory availability (2850 Pcs vs. 2153 Pcs).

Q3: Why do the LF247DT, LF347D, and LF347DT have a fixed 44 V supply specification instead of a range?

A: These devices are specified for symmetric dual supply operation at ±22 V (total 44 V span). This differs from the OPA4130UA single-supply or asymmetric dual-supply capability. Applications requiring single-supply or asymmetric supply voltages must select alternative substitutes such as the ADA4000-4ARZ series.

Q4: Are general purpose amplifiers (ADA4004-4ARZ, LM2902AWYDT, LM324ADR2G) suitable replacements for J-FET applications?

A: General purpose amplifiers differ fundamentally from J-FET amplifiers in input stage architecture. Input bias current specifications are significantly higher (20-40 nA vs. 5 pA for J-FET devices), and input offset voltage is higher (40-2000 µV vs. 200 µV). These devices are suitable only for applications where low input bias current and low input offset voltage are not critical design requirements. Applications requiring J-FET characteristics must select from the J-FET substitute group (ADA4000-4ARZ, LF247DT, LF347D, LF347DT).

Q5: What is the significance of Moisture Sensitivity Level (MSL) ratings?

A: The OPA4130UA has MSL 3 (168 Hours), indicating maximum floor life of 168 hours after moisture exposure. The ADA4000-4ARZ series has MSL 1 (Unlimited), providing superior moisture tolerance and extended shelf life. The LF247DT, LF347D, and LF347DT have MSL 1 (Unlimited). For applications with extended storage or high-humidity environments, MSL 1 rated devices provide operational reliability advantages.

Q6: Can the LM324ADR2G operate at the OPA4130UA minimum supply voltage of 4.5 V?

A: No. The LM324ADR2G minimum supply voltage is 3 V, but the maximum operating temperature is limited to 70°C compared to the OPA4130UA specification of 85°C. Additionally, the LM324ADR2G is specified for 0°C to 70°C operating range, which does not cover the full -40°C to 85°C range of the OPA4130UA. This device is suitable only for applications operating within 0°C to 70°C temperature range.

Q7: What packaging options are available for J-FET quad amplifier substitutes?

A: The ADA4000-4ARZ is supplied in Tube packaging (2153 Pcs inventory). The ADA4000-4ARZ-R7 is supplied in Cut Tape & Digi-Reel format (2850 Pcs inventory). The LF247DT is supplied in Tape & Reel (17352 Pcs inventory). The LF347D is supplied in Tube (16726 Pcs inventory). The LF347DT is supplied in Cut Tape & Digi-Reel format (27321 Pcs inventory). All maintain the 14-SOIC surface mount form factor compatible with OPA4130UA PCB layouts.

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