MIC864YM Equivalent & Substitute Parts

Part Overview

The MIC864YM is a general-purpose operational amplifier manufactured by Microchip Technology, configured as a dual-channel (2 circuit) rail-to-rail amplifier in an 8-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of active equivalent and substitute parts for new designs and ongoing production requirements. The MIC864YM operates across a 2.5V to 5.5V supply range with a slew rate of 0.2V/µs and gain bandwidth product of 350 kHz, making it suitable for low-speed, low-power analog signal processing applications.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	MIC864YM	—
Manufacturer	Microchip Technology	—
Category	Linear, Amplifiers	—
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Slew Rate	0.2	V/µs
Gain Bandwidth Product	350	kHz
Current - Input Bias	2.5	pA
Voltage - Input Offset	2	mV
Current - Supply (x2 Channels)	33	µA
Current - Output / Channel	23	mA
Voltage - Supply Span (Min)	2.5	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40°C ~ 125°C	—
Product Status	Obsolete	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MIC864YM is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Package type: 8-SOIC (0.154", 3.90mm Width) surface mount
Number of circuits: 2 (dual-channel configuration)
Output type: Rail-to-Rail
Supply voltage range: Minimum 2.5V, Maximum 5.5V (or compatible subset)
Operating temperature range: Must support -40°C to 125°C or equivalent industrial range
Mounting type: Surface Mount

Secondary Compatibility Parameters:

Slew rate: 0.2V/µs or higher
Gain bandwidth product: 350 kHz or higher
Input bias current: 2.5 pA or lower
Input offset voltage: 2 mV or lower
Supply current per channel: 33 µA or lower
Output current per channel: 23 mA or higher

Substitute parts are grouped into two categories based on amplifier type: General Purpose amplifiers and CMOS amplifiers. General Purpose substitutes maintain similar performance characteristics to the original MIC864YM. CMOS substitutes offer enhanced performance in specific parameters (slew rate, gain bandwidth product, input offset voltage) while maintaining package and pin compatibility.

Parameter Comparison

Parameter	MIC864YM	LMV822M/NOPB	LMV822MX/NOPB	MAX492CSA+	OPA2314AQDRQ1	OPA2347UA	TLC4502ACD	TLC4502ACDR	TLC4502AID	TLC4502AIDR	TLC4502AMD
Manufacturer	Microchip	Texas Instruments	Texas Instruments	Analog Devices/Maxim	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	CMOS	General Purpose	CMOS	CMOS	CMOS	CMOS	CMOS
Number of Circuits	2	2	2	2	2	2	2	2	2	2	2
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Slew Rate (V/µs)	0.2	2	2	0.2	1.5	0.17	2.5	2.5	2.5	2.5	2.5
Gain Bandwidth Product (kHz)	350	5600	5600	500	3000	350	4700	4700	4700	4700	4700
Current - Input Bias (pA)	2.5	40	40	25	2	0.5	1	1	1	1	1
Voltage - Input Offset (mV)	2	1	1	0.2	0.5	2	0.01	0.01	0.01	0.01	0.01
Current - Supply (µA x2 Ch)	33	500	500	150	150	20	2.5	2.5	2.5	2.5	2.5
Current - Output / Channel (mA)	23	45	45	30	20	17	50	50	50	50	50
Voltage - Supply Span Min (V)	2.5	2.5	2.5	2.7	1.8	2.3	4	4	4	4	4
Voltage - Supply Span Max (V)	5.5	5.5	5.5	6	5.5	5.5	6	6	6	6	6
Operating Temperature (°C)	-40 ~ 125	-40 ~ 85	-40 ~ 85	0 ~ 70	-40 ~ 125	-55 ~ 125	0 ~ 70	0 ~ 70	-40 ~ 125	-40 ~ 125	-55 ~ 125
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Last Time Buy
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Vendor Undefined	2 (1 Year)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For General Purpose Applications with Extended Temperature Range:

The OPA2347UA is the optimal substitute for applications requiring the full -40°C to 125°C operating temperature range while maintaining low power consumption. This device features a microPOWER™ design with 20 µA supply current per channel (lowest among all substitutes), matching the MIC864YM's low-power profile. The OPA2347UA maintains identical slew rate (0.17V/µs) and gain bandwidth product (350 kHz) specifications, ensuring direct functional compatibility. All electrical parameters remain within acceptable tolerance for direct replacement in existing designs.

For General Purpose Applications with Standard Temperature Range:

The LMV822M/NOPB and LMV822MX/NOPB (Texas Instruments LMV® series) provide enhanced performance with 16x higher gain bandwidth product (5.6 MHz) and 10x faster slew rate (2V/µs) while maintaining the 2.5V to 5.5V supply range. These devices operate across -40°C to 85°C, suitable for industrial applications. The LMV822MX/NOPB offers superior inventory availability (30,163 units) in Cut Tape and Digi-Reel® packaging.

For Applications with Relaxed Temperature Requirements:

The MAX492CSA+ (Analog Devices/Maxim Integrated) operates across 0°C to 70°C with superior input offset voltage (200 µV) and moderate slew rate (0.2V/µs). This device is suitable for commercial-grade applications where extended temperature operation is not required.

For CMOS Technology Applications:

The TLC4502 series (TLC4502AID, TLC4502AIDR, TLC4502AMD) provides CMOS amplifier technology with exceptional performance: 2.5V/µs slew rate, 4.7 MHz gain bandwidth product, and 10 µV input offset voltage. The TLC4502AID variant supports the full -40°C to 125°C temperature range with highest inventory availability (5,000,200 units). The TLC4502AMD is designated Last Time Buy status and operates across -55°C to 125°C for extended temperature applications.

For Automotive-Grade Applications:

The OPA2314AQDRQ1 is an AEC-Q100 qualified automotive-grade CMOS amplifier with -40°C to 125°C operating range, 1.8V minimum supply voltage, and 3 MHz gain bandwidth product. This device is suitable for automotive and harsh-environment applications requiring automotive qualification.

Compliance and Regulatory Considerations:

All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the MIC864YM's regulatory profile. Moisture sensitivity levels are consistent across all recommended substitutes (MSL 1 or equivalent), ensuring compatibility with standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q1: Can the LMV822M/NOPB directly replace the MIC864YM in existing designs?

The LMV822M/NOPB is pin-compatible and functionally compatible for most applications. However, the operating temperature range is limited to -40°C to 85°C compared to the MIC864YM's -40°C to 125°C. If your application requires operation above 85°C, use the OPA2347UA or TLC4502AID instead. The LMV822M/NOPB offers superior slew rate and gain bandwidth product, which may require circuit re-evaluation in bandwidth-sensitive applications.

Q2: What is the difference between TLC4502AID and TLC4502AIDR?

Both devices are electrically identical CMOS amplifiers with identical electrical specifications. The primary difference is packaging: TLC4502AID is supplied in Tube packaging, while TLC4502AIDR is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and volume. TLC4502AID offers significantly higher inventory (5,000,200 units vs. 5,680 units).

Q3: Why do some substitutes have a 4V minimum supply voltage instead of 2.5V?

The TLC4502 series CMOS amplifiers require a minimum 4V supply voltage due to CMOS technology constraints. These devices are not suitable for applications operating below 4V. For 2.5V minimum supply applications, use the LMV822 series, MAX492CSA+, OPA2314AQDRQ1, or OPA2347UA.

Q4: Is the OPA2347UA suitable for high-speed applications?

No. The OPA2347UA maintains the same slew rate (0.17V/µs) and gain bandwidth product (350 kHz) as the original MIC864YM, making it suitable only for low-speed signal processing. For applications requiring higher bandwidth, use the LMV822 series (5.6 MHz) or TLC4502 series (4.7 MHz).

Q5: What is the significance of "Last Time Buy" status for TLC4502AMD?

Last Time Buy status indicates that Texas Instruments will discontinue this part after a specified date. While currently available (957 units in stock), new designs should not select this part. Use TLC4502AID or TLC4502AIDR for new applications requiring the TLC4502 family.

Q6: Can I use the OPA2314AQDRQ1 in non-automotive applications?

Yes. The OPA2314AQDRQ1 is AEC-Q100 qualified for automotive use but is fully functional in non-automotive applications. However, automotive-grade components typically command a price premium. For non-automotive applications, consider the LMV822 series or TLC4502 series as cost-effective alternatives.

Q7: How do I select between General Purpose and CMOS amplifier substitutes?

General Purpose amplifiers (LMV822, MAX492CSA+, OPA2347UA) are suitable for low-frequency signal conditioning, filtering, and buffering applications. CMOS amplifiers (TLC4502 series, OPA2314AQDRQ1) offer superior performance in slew rate, gain bandwidth product, and input offset voltage, making them suitable for higher-frequency applications and precision measurement circuits. CMOS devices typically consume less supply current but require higher minimum supply voltages (4V for TLC4502).

Q8: Are all substitute parts RoHS3 compliant?

Yes. All recommended substitute parts are ROHS3 compliant and REACH unaffected, matching the MIC864YM's environmental compliance profile. This ensures compatibility with modern PCB assembly and environmental regulations.

Q9: What packaging options are available for the substitute parts?

Packaging varies by part number: LMV822M/NOPB (Tube), LMV822MX/NOPB (Cut Tape & Digi-Reel®), MAX492CSA+ (Tube), OPA2347UA (Tube), TLC4502ACD (Tube), TLC4502ACDR (standard), TLC4502AID (Tube), TLC4502AIDR (Tape & Reel), TLC4502AMD (standard). Select packaging based on assembly process requirements and volume.

Q10: Which substitute offers the best inventory availability?

The TLC4502AID offers the highest inventory availability with 5,000,200 units in stock. The LMV822MX/NOPB provides the second-highest availability with 30,163 units. For immediate availability with lower volumes, the OPA2314AQDRQ1 offers 35,200 units.

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