MCP6142T-I/MS Equivalent & Substitute Parts

Part Overview

The MCP6142T-I/MS is a general-purpose operational amplifier manufactured by Microchip Technology, configured as a dual-channel (2 circuit) rail-to-rail amplifier in an 8-MSOP surface mount package. This device is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1). The MCP6142T-I/MS is supplied in Cut Tape (CT) & Digi-Reel® packaging with 11,584 units currently in stock.

Equivalent and substitute parts are identified when design requirements permit relaxation of specific electrical parameters while maintaining functional compatibility within the application circuit. Substitution is necessary when the primary part becomes unavailable, when alternative packaging formats are required, or when supply chain optimization is needed without compromising circuit performance within specified tolerance windows.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Slew Rate	0.024	V/µs
Gain Bandwidth Product	100	kHz
Current - Input Bias	1	pA
Voltage - Input Offset	3	mV
Current - Supply (x2 Channels)	600	nA
Current - Output / Channel	20	mA
Voltage - Supply Span (Min)	1.4	V
Voltage - Supply Span (Max)	6	V
Operating Temperature	-40 to 85	°C
Mounting Type	Surface Mount	—
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	—
Supplier Device Package	8-MSOP	—
Product Status	Active	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MCP6142T-I/MS is determined by the following critical parameters:

Primary Substitution Criteria:

Dual-channel (2 circuit) configuration
Rail-to-rail output capability
Surface mount package with 8-pin configuration
Operating temperature range compatibility (-40°C minimum and 85°C or higher maximum)
Supply voltage span overlap (minimum 1.4 V to 6 V range or compatible subset)
RoHS3 compliance and MSL 1 rating

Secondary Compatibility Factors:

Slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current per channel may vary within application-specific tolerance windows
Package format variations (Cut Tape, Tube, Tape & Reel) are interchangeable for the same electrical device
Supplier device package designation (8-MSOP, 8-VSSOP, 8-MiniSO) indicates physical pin layout compatibility within the 8-pin, 0.118" width standard

Substitution Groups:

Group 1: Direct Microchip Technology Equivalents (Packaging Variant)

MCP6142-I/MS (Tube packaging) — Identical electrical specifications, packaging format only

Group 2: Texas Instruments LMP7732 Series (Enhanced Performance)

LMP7732MM/NOPB and LMP7732MME/NOPB — Higher slew rate (2.4 V/µs), higher gain bandwidth product (22 MHz), extended temperature range (-40°C to 125°C), different supply current and output current specifications

Group 3: Texas Instruments LPV542 Series (Ultra-Low Power CMOS)

LPV542DGKR and LPV542DGKT — CMOS amplifier type, lower slew rate (0.0037 V/µs), lower gain bandwidth product (8 kHz), ultra-low input bias current (0.1 pA), extended temperature range (-40°C to 125°C)

Group 4: onsemi NCV20032 / NCS20032 Series (High-Speed General Purpose)

NCV20032DMR2G and NCS20032DMR2G — Higher slew rate (8 V/µs), higher gain bandwidth product (7 MHz), extended temperature range (-40°C to 125°C), higher supply current and output current specifications

Group 5: STMicroelectronics OA2NP34S (Ultra-Low Power CMOS)

OA2NP34S — CMOS amplifier type, lower slew rate (0.003 V/µs), lower gain bandwidth product (9 kHz), ultra-low input bias current (1 pA), operating temperature range -40°C to 85°C

Group 6: Texas Instruments OPA2369 Series (Low-Power General Purpose)

OPA2369AIDGKR and OPA2369AIDGKT — Lower slew rate (0.005 V/µs), lower gain bandwidth product (12 kHz), operating temperature range -40°C to 85°C, MSL 2 rating

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Circuits	Slew Rate (V/µs)	GBW (kHz)	Input Bias (pA)	Input Offset (mV/µV)	Supply Current (nA/µA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package	MSL
MCP6142T-I/MS	Microchip	General Purpose	2	0.024	100	1	3 mV	600 nA	20	1.4	6	-40 to 85	8-MSOP	1
MCP6142-I/MS	Microchip	General Purpose	2	0.024	100	1	3 mV	600 nA	20	1.4	6	-40 to 85	8-MSOP	1
LMP7732MM/NOPB	Texas Instruments	General Purpose	2	2.4	22000	14	6 µV	5 mA	49	1.8	5.5	-40 to 125	8-VSSOP	1
LMP7732MME/NOPB	Texas Instruments	General Purpose	2	2.4	22000	14	6 µV	5 mA	49	1.8	5.5	-40 to 125	8-VSSOP	1
LPV542DGKR	Texas Instruments	CMOS	2	0.0037	8	0.1	1 mV	480 nA	36	1.6	5.5	-40 to 125	8-VSSOP	1
LPV542DGKT	Texas Instruments	CMOS	2	0.0037	8	0.1	1 mV	480 nA	36	1.6	5.5	-40 to 125	8-VSSOP	1
NCV20032DMR2G	onsemi	General Purpose	2	8	7000	1	500 µV	275 µA	14	1.7	5.5	-40 to 125	8-MSOP	1
NCS20032DMR2G	onsemi	General Purpose	2	8	7000	1	500 µV	275 µA	96	1.7	5.5	-40 to 125	8-MSOP	1
OA2NP34S	STMicroelectronics	CMOS	2	0.003	9	1	100 µV	650 nA	11	1.5	5.5	-40 to 85	8-MiniSO	1
OPA2369AIDGKR	Texas Instruments	General Purpose	2	0.005	12	10	250 µV	700 nA	10	1.8	5.5	-40 to 85	8-VSSOP	2
OPA2369AIDGKT	Texas Instruments	General Purpose	2	0.005	12	10	250 µV	700 nA	10	1.8	5.5	-40 to 85	8-VSSOP	2

Engineering Selection Recommendations

Direct Equivalent (No Performance Change): MCP6142-I/MS is electrically and functionally identical to MCP6142T-I/MS. Selection between these two is determined solely by packaging format availability: MCP6142-I/MS is supplied in Tube packaging, while MCP6142T-I/MS is supplied in Cut Tape (CT) & Digi-Reel® format. Both maintain Active product status, RoHS3 compliance, and MSL 1 rating. Inventory availability: MCP6142-I/MS has 3,300 units in stock.

Enhanced Performance Substitutes (Higher Speed, Extended Temperature): LMP7732MM/NOPB and LMP7732MME/NOPB (Texas Instruments) provide 24× higher slew rate (2.4 V/µs vs. 0.024 V/µs) and 220× higher gain bandwidth product (22 MHz vs. 100 kHz). Operating temperature range extends to 125°C. Supply voltage minimum increases to 1.8 V (vs. 1.4 V). Supply current increases to 5 mA per channel (vs. 600 nA). These substitutes are suitable for applications requiring higher bandwidth and extended temperature operation. Both maintain RoHS3 compliance and MSL 1 rating. Inventory: LMP7732MM/NOPB has 3,004 units; LMP7732MME/NOPB has 2,608 units.

Ultra-Low Power CMOS Substitutes (Minimal Supply Current): LPV542DGKR and LPV542DGKT (Texas Instruments) are CMOS amplifiers with 480 nA supply current (vs. 600 nA) and ultra-low input bias current (0.1 pA vs. 1 pA). Slew rate is significantly lower (0.0037 V/µs vs. 0.024 V/µs) and gain bandwidth product is reduced (8 kHz vs. 100 kHz). Operating temperature range extends to 125°C. Supply voltage minimum increases to 1.6 V. These substitutes are suitable for battery-powered and ultra-low-power applications where bandwidth requirements are minimal. Both maintain RoHS3 compliance and MSL 1 rating. Inventory: LPV542DGKR has 9,245 units; LPV542DGKT has 20,600 units.

High-Speed General Purpose Substitutes (Faster Slew Rate): NCV20032DMR2G and NCS20032DMR2G (onsemi) provide 8 V/µs slew rate (333× higher than MCP6142T-I/MS) and 7 MHz gain bandwidth product (70× higher). Operating temperature range extends to 125°C. Supply current increases to 275 µA per channel. Output current differs between variants: NCV20032DMR2G provides 14 mA per channel; NCS20032DMR2G provides 96 mA per channel. These substitutes are suitable for high-speed signal processing applications. Both maintain RoHS3 compliance and MSL 1 rating. Inventory: NCV20032DMR2G has 1,540 units; NCS20032DMR2G has 4,311 units.

Ultra-Low Power CMOS Alternative (Minimal Supply Current, Matched Temperature): OA2NP34S (STMicroelectronics) is a CMOS amplifier with 650 nA supply current and ultra-low input bias current (1 pA). Slew rate is 0.003 V/µs and gain bandwidth product is 9 kHz. Operating temperature range matches MCP6142T-I/MS (-40°C to 85°C). Supply voltage minimum is 1.5 V. This substitute is suitable for low-power applications with temperature requirements matching the primary part. MSL 1 rating maintained. RoHS3 compliant. Inventory: 100,200 units in stock.

Low-Power General Purpose Alternative (Matched Temperature Range): OPA2369AIDGKR and OPA2369AIDGKT (Texas Instruments) provide 0.005 V/µs slew rate and 12 kHz gain bandwidth product. Operating temperature range matches MCP6142T-I/MS (-40°C to 85°C). Supply current is 700 nA per channel. Output current is 10 mA per channel. These substitutes are suitable for low-power applications with temperature requirements matching the primary part. MSL rating is 2 (1 Year), which differs from the primary part's MSL 1. RoHS3 compliant. Inventory: OPA2369AIDGKR has 7,320 units; OPA2369AIDGKT has 2,400 units.

Frequently Asked Questions (FAQ)

Q1: Can I substitute MCP6142-I/MS for MCP6142T-I/MS without circuit redesign?

A: Yes. MCP6142-I/MS is electrically and functionally identical to MCP6142T-I/MS. The only difference is packaging format: MCP6142-I/MS is supplied in Tube, while MCP6142T-I/MS is supplied in Cut Tape (CT) & Digi-Reel®. Both devices have identical electrical specifications, pin configuration, and compliance ratings. No circuit redesign is required.

Q2: What are the key differences between the MCP6142T-I/MS and LMP7732MM/NOPB?

A: The LMP7732MM/NOPB offers significantly higher performance: 100× faster slew rate (2.4 V/µs vs. 0.024 V/µs), 220× higher gain bandwidth product (22 MHz vs. 100 kHz), and extended operating temperature to 125°C (vs. 85°C). However, supply current increases from 600 nA to 5 mA per channel, and minimum supply voltage increases from 1.4 V to 1.8 V. Substitution is appropriate only if the application can tolerate higher power consumption and higher minimum supply voltage.

Q3: Which substitute offers the lowest power consumption?

A: The LPV542DGKR and LPV542DGKT offer the lowest supply current at 480 nA per channel, compared to 600 nA for the MCP6142T-I/MS. However, these are CMOS amplifiers with significantly reduced bandwidth (8 kHz vs. 100 kHz) and slew rate (0.0037 V/µs vs. 0.024 V/µs). Selection depends on whether the application bandwidth requirements can be met with these reduced specifications.

Q4: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant. However, note that OPA2369AIDGKR and OPA2369AIDGKT have MSL 2 (1 Year) rating, while the primary part and most other substitutes have MSL 1 (Unlimited). MSL rating affects moisture sensitivity during storage and handling.

Q5: Can I use NCV20032DMR2G or NCS20032DMR2G as direct replacements?

A: These onsemi parts are functionally compatible but not direct replacements. They offer much higher slew rate (8 V/µs vs. 0.024 V/µs) and higher gain bandwidth product (7 MHz vs. 100 kHz), but also significantly higher supply current (275 µA vs. 600 nA per channel). Output current differs between the two variants. Substitution is appropriate only if the application requires higher speed and can tolerate substantially higher power consumption.

Q6: What is the difference between 8-MSOP, 8-VSSOP, and 8-MiniSO packages?

A: All three are 8-pin surface mount packages with 0.118" (3.00 mm) width, but they have different physical footprints and pin spacing. 8-MSOP and 8-VSSOP are mechanically compatible within the same PCB footprint design. 8-MiniSO (used by OA2NP34S) has a different footprint and requires PCB layout modification. Verify PCB compatibility before substituting parts with different package designations.

Q7: Which substitute should I choose for battery-powered applications?

A: For battery-powered applications prioritizing minimal power consumption, select LPV542DGKR or LPV542DGKT (480 nA supply current) or OA2NP34S (650 nA supply current). Both are CMOS amplifiers with ultra-low input bias current. However, verify that the reduced bandwidth (8-9 kHz) meets application requirements. If higher bandwidth is needed, OPA2369AIDGKR or OPA2369AIDGKT (700 nA supply current) provide a compromise between power consumption and bandwidth.

Q8: Can I use OA2NP34S as a substitute if my application operates at -40°C to 85°C?

A: Yes. OA2NP34S has an operating temperature range of -40°C to 85°C, which matches the MCP6142T-I/MS. However, OA2NP34S uses an 8-MiniSO package instead of 8-MSOP, requiring PCB layout modification. Electrical specifications differ significantly: OA2NP34S is a CMOS amplifier with lower bandwidth (9 kHz vs. 100 kHz) and lower slew rate (0.003 V/µs vs. 0.024 V/µs). Substitution is appropriate only if bandwidth requirements are minimal and PCB redesign is acceptable.

Q9: What is the impact of using a substitute with higher supply current?

A: Higher supply current increases power consumption and heat dissipation. For battery-powered applications, this reduces operating time. For AC-powered applications, this increases power supply requirements and may necessitate larger power supply components. Verify that the power supply can deliver the required current and that thermal management is adequate for the application environment.

Q10: Are there any compliance or certification differences between the primary part and substitutes?

A: All parts are RoHS3 compliant and REACH unaffected. All have ECCN EAR99 classification and HTSUS 8542.33.0001 tariff code. The primary difference is MSL rating: MCP6142T-I/MS and most substitutes have MSL 1 (Unlimited), while OPA2369AIDGKR and OPA2369AIDGKT have MSL 2 (1 Year). MSL 2 requires more careful moisture control during storage and handling. No other compliance differences exist.

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