MCP624T-E/SL Equivalent & Substitute Parts

Part Overview

The MCP624T-E/SL is a general purpose operational amplifier manufactured by Microchip Technology, featuring four independent circuits in a 14-SOIC surface mount package. This rail-to-rail amplifier operates across a 2.5V to 5.5V supply range with a 20 MHz gain bandwidth product and 10V/µs slew rate, designed for applications requiring moderate-speed signal conditioning and amplification.

The part is currently in Active product status with 762 units in stock. Substitute parts are identified for applications requiring alternative performance characteristics, different manufacturer sourcing, or specific compliance requirements such as automotive qualification or extended temperature operation.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	MCP624T-E/SL	—
Manufacturer	Microchip Technology	—
Number of Circuits	4	—
Amplifier Type	General Purpose	—
Output Type	Rail-to-Rail	—
Gain Bandwidth Product	20	MHz
Slew Rate	10	V/µs
Current - Input Bias	5	pA
Voltage - Input Offset	200	µV
Current - Supply (x4 Channels)	2.5	mA
Current - Output / Channel	70	mA
Voltage - Supply Span (Min)	2.5	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 125	°C
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Product Status	Active	—

Substitute Part Grouping Explanation

Substitution of the MCP624T-E/SL is determined by the following critical parameters:

Functional Compatibility Criteria:

Number of circuits: 4 independent amplifier channels required
Output type: Rail-to-rail operation mandatory
Package type: 14-SOIC surface mount form factor
Supply voltage range: Minimum 2.5V to maximum 5.5V overlap required
Operating temperature: -40°C to 125°C preferred for industrial applications

Performance Tier Classification: Substitute parts are grouped into three performance categories based on gain bandwidth product and slew rate:

High-Performance Tier (GBW ≥ 7 MHz, Slew Rate ≥ 8V/µs): NCV20034DR2G, NCS20034DR2G
Mid-Performance Tier (GBW 1–1.4 MHz, Slew Rate 0.35–1V/µs): LMV324Q1MAX/NOPB, LMV324Q3MA/NOPB, LMR934F-GE2
Low-Power Tier (GBW 900 kHz, Slew Rate 0.4V/µs): BU7244F-E2

Compliance and Sourcing Considerations:

LMV324Q1MAX/NOPB and LMV324Q3MA/NOPB include AEC-Q100 automotive qualification
LMV344ID and LMV344IDR feature CMOS architecture with ultra-low input bias current (1 pA)
All substitute parts maintain ROHS3 compliance and MSL Level 1 rating

Parameter Comparison

Part Number	Manufacturer	GBW (MHz)	Slew Rate (V/µs)	Input Bias (pA)	Supply Current (µA)	Output Current (mA)	Temp Range (°C)	Package	Status
MCP624T-E/SL	Microchip	20	10	5	2500	70	-40 to 125	14-SOIC	Active
NCV20034DR2G	onsemi	7	8	1	275	96	-40 to 125	14-SOIC	Active
NCS20034DR2G	onsemi	7	8	1	275	8	Not Specified	14-SOIC	Active
LMV324Q1MAX/NOPB	Texas Instruments	1	1	15	410	160	-40 to 125	14-SOIC	Active
LMV324Q3MA/NOPB	Texas Instruments	1	1	15	410	160	-40 to 125	14-SOIC	Active
LMV344ID	Texas Instruments	1	1	1	107	113	-40 to 125	14-SOIC	Last Time Buy
LMV344IDR	Texas Instruments	1	1	1	107	113	-40 to 125	14-SOIC	Active
LMR934F-GE2	Rohm Semiconductor	1.4	0.35	5000	250	90	-40 to 85	14-SOP	Active
BU7244F-E2	Rohm Semiconductor	0.9	0.4	1	360	12	-40 to 85	14-SOP	Active

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement (14-SOIC Package, -40°C to 125°C):

Select LMV344IDR when ultra-low input bias current (1 pA) and low supply current (107 µA) are required. This part maintains identical package dimensions and full temperature range operation. LMV344IDR is in Active status with 7346 units available.

Select LMV324Q1MAX/NOPB or LMV324Q3MA/NOPB when automotive-grade qualification (AEC-Q100) is required. Both parts provide full temperature range operation and higher output current capability (160 mA per channel). LMV324Q1MAX/NOPB has significantly higher inventory (50300 units).

For High-Performance Applications (GBW ≥ 7 MHz):

Select NCV20034DR2G for applications requiring higher slew rate (8V/µs) and gain bandwidth product (7 MHz) while maintaining full temperature range (-40°C to 125°C). This part provides 96 mA output current per channel and operates from 1.7V minimum supply voltage. Inventory: 4347 units.

For Low-Power Applications:

Select LMV344IDR or LMV344ID for minimum supply current consumption (107 µA total). LMV344IDR is preferred due to Active product status and higher inventory (7346 units versus 1889 units for LMV344ID).

For Extended Temperature Range Limitation:

Parts LMR934F-GE2 and BU7244F-E2 operate only to 85°C maximum. These are suitable only for applications not requiring the full -40°C to 125°C range.

Inventory and Availability Considerations:

LMV324Q1MAX/NOPB offers the highest inventory (50300 units). NCV20034DR2G and LMV344IDR provide strong availability (4347 and 7346 units respectively) with Active product status.

Frequently Asked Questions (FAQ)

Q: Can LMR934F-GE2 or BU7244F-E2 be used as direct replacements for MCP624T-E/SL?

A: These parts are not suitable for applications requiring the full -40°C to 125°C operating temperature range. Both are limited to -40°C to 85°C maximum. Additionally, LMR934F-GE2 and BU7244F-E2 use 14-SOP packaging (4.40mm width) versus the MCP624T-E/SL 14-SOIC (3.90mm width), requiring PCB layout verification.

Q: What is the difference between LMV344ID and LMV344IDR?

A: Both parts are electrically identical with 1 pA input bias current and 1 MHz gain bandwidth product. The primary difference is packaging: LMV344ID is supplied in Tube packaging and has Last Time Buy status (1889 units), while LMV344IDR is supplied in Cut Tape & Digi-Reel® and has Active status (7346 units). LMV344IDR is recommended for new designs.

Q: Why does NCS20034DR2G show no operating temperature specification?

A: Operating temperature data is not provided in the component specification. NCV20034DR2G, the functionally equivalent part from onsemi, specifies -40°C to 125°C operation. Verify temperature requirements with the manufacturer before selection.

Q: Can I use LMV324Q1MAX/NOPB and LMV324Q3MA/NOPB interchangeably?

A: Yes. Both parts are electrically and mechanically identical, with identical electrical specifications (1 MHz GBW, 1V/µs slew rate, 160 mA output current). Both carry AEC-Q100 automotive qualification. LMV324Q1MAX/NOPB has significantly higher inventory (50300 units).

Q: What is the impact of using NCV20034DR2G instead of MCP624T-E/SL?

A: NCV20034DR2G provides higher performance (7 MHz GBW versus 20 MHz, 8V/µs slew rate versus 10V/µs) but with significantly lower supply current (275 µA versus 2500 µA). The lower output current per channel (96 mA versus 70 mA) may be limiting in high-impedance load applications. The part operates from 1.7V minimum supply voltage, providing greater flexibility in low-voltage systems.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the MCP624T-E/SL specifications.

Q: Which substitute part offers the lowest power consumption?

A: LMV344IDR and LMV344ID offer the lowest total supply current at 107 µA (across four channels), compared to 2500 µA for MCP624T-E/SL. This represents a 95% reduction in supply current, making these parts suitable for battery-powered and energy-constrained applications.

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