XR2008IMP8 Equivalent & Substitute Parts

Part Overview

The XR2008IMP8 is a general purpose operational amplifier featuring dual circuits in an 8-MSOP surface mount package, manufactured by MaxLinear, Inc. This device provides rail-to-rail output capability with a slew rate of 50V/µs and gain bandwidth product of 33 MHz, designed for low-power analog signal processing applications across industrial and consumer electronics.

The XR2008IMP8 has reached obsolete product status. Identifying functionally equivalent substitute parts is essential for design continuity, production planning, and long-term supply chain management. Active alternative components with comparable electrical characteristics and identical package footprints are available from multiple manufacturers.

Key Parameters

Parameter	XR2008IMP8 Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Slew Rate	50	V/µs
Gain Bandwidth Product	33	MHz
-3dB Bandwidth	35	MHz
Current - Input Bias	1.2	µA
Voltage - Input Offset	5	mV
Current - Supply (per Channel)	470	µA
Current - Output / Channel	15	mA
Voltage - Supply Span (Min)	2.5	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature Range	-40 to 125	°C
Mounting Type	Surface Mount	—
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the XR2008IMP8 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Dual-circuit operational amplifier configuration (2 circuits minimum)
Rail-to-rail output capability
8-pin surface mount package (8-MSOP or 8-VSSOP footprint compatibility)
Operating temperature range: -40°C to 125°C minimum
Supply voltage range: minimum 2.5V to 5.5V overlap required

Performance Parameters for Functional Equivalence:

Slew rate: 50V/µs (XR2008IMP8 baseline)
Gain bandwidth product: 33 MHz (XR2008IMP8 baseline)
Input bias current: 1.2 µA (XR2008IMP8 baseline)
Input offset voltage: 5 mV (XR2008IMP8 baseline)
Supply current per channel: 470 µA (XR2008IMP8 baseline)
Output current per channel: 15 mA (XR2008IMP8 baseline)

Substitute parts are grouped into two categories based on amplifier type: General Purpose OpAmp substitutes and CMOS amplifier substitutes. General Purpose substitutes maintain similar input bias current and offset voltage characteristics. CMOS substitutes offer significantly lower input bias current (picoampere range) and lower input offset voltage, with trade-offs in slew rate and supply current.

Parameter Comparison

Parameter	XR2008IMP8	LMV797MMX/NOPB	AD8616ARMZ	AD8652ARMZ	LMV862MM/NOPB	LTC6244HMS8#TRPBF	MAX4128EUA+T	OPA2322AIDGKR	MP5220DK-LF-Z	Unit
Amplifier Type	General Purpose	General Purpose	CMOS	CMOS	CMOS	CMOS	General Purpose	CMOS	General Purpose	—
Number of Circuits	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	—
Slew Rate	50	11.5	12	41	20	35	10	10	45	V/µs
Gain Bandwidth Product	33	17	24	50	31	50	25	20	14	MHz
Current - Input Bias	1.2	0.1	0.2	1	0.1	1	50	0.2	500	pA/nA/µA
Voltage - Input Offset	5	100	23	90	273	100	400	500	2	µV/mV
Current - Supply (per Channel)	470	1.3	1.7	17.5	4.85	6.25	725	1.6	1.6	mA/µA
Current - Output / Channel	15	60	150	40	150	35	50	65	130	mA
Voltage - Supply Span (Min)	2.5	1.8	2.7	2.7	2.7	2.8	2.7	1.8	3.2	V
Voltage - Supply Span (Max)	5.5	5.5	5	5.5	5.5	6	6.5	5.5	18	V
Operating Temperature Range	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 85	-40 to 125	-40 to 85	°C
Package / Case	8-MSOP	8-VSSOP	8-MSOP	8-MSOP	8-VSSOP	8-MSOP	8-uMAX/uSOP	8-VSSOP	8-MSOP	—
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	—
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

Primary Substitute: LMV797MMX/NOPB (Texas Instruments)

The LMV797MMX/NOPB is the highest-priority substitute for the XR2008IMP8. This general purpose dual-channel operational amplifier maintains identical functional architecture with dual circuits and rail-to-rail output. The device is actively manufactured and ROHS3 compliant. Operating temperature range extends to -40°C to 125°C, matching the original specification. Supply voltage range (1.8V to 5.5V) encompasses the XR2008IMP8 operating window. The 8-VSSOP package provides mechanical and electrical compatibility with 8-MSOP footprints in standard PCB layouts. Inventory availability is substantial (28,100 units in stock).

Secondary Substitute: AD8652ARMZ (Analog Devices Inc.)

The AD8652ARMZ offers superior performance characteristics with slew rate of 41V/µs and gain bandwidth product of 50 MHz, both exceeding the XR2008IMP8 baseline. This CMOS amplifier provides lower input bias current (1 pA) and operates across the full temperature range (-40°C to 125°C). Supply voltage range (2.7V to 5.5V) is compatible. The 8-MSOP package matches the original footprint exactly. ROHS3 compliance and active product status ensure long-term availability. This substitute is suitable for applications requiring higher bandwidth and lower input bias current.

Tertiary Substitute: LTC6244HMS8#TRPBF (Analog Devices Inc.)

The LTC6244HMS8#TRPBF is a CMOS dual-channel amplifier with slew rate of 35V/µs and gain bandwidth product of 50 MHz. The device maintains rail-to-rail output and operates across -40°C to 125°C. Supply voltage range (2.8V to 6V) overlaps the XR2008IMP8 specification. The 8-MSOP package provides direct footprint compatibility. ROHS3 compliance and active status support production continuity. This substitute is appropriate for applications where moderate slew rate and high bandwidth are required.

Alternative Substitute: OPA2322AIDGKR (Texas Instruments)

The OPA2322AIDGKR is a CMOS dual-channel amplifier with operating temperature range of -40°C to 125°C and supply voltage range of 1.8V to 5.5V. The 8-VSSOP package is mechanically compatible with standard 8-pin surface mount layouts. ROHS3 compliance and active product status are confirmed. This substitute is suitable for low-power applications where input bias current minimization is prioritized.

Extended Supply Voltage Substitute: MP5220DK-LF-Z (Monolithic Power Systems Inc.)

The MP5220DK-LF-Z is a general purpose dual-channel amplifier with extended supply voltage range (3.2V to 18V), enabling operation in higher-voltage applications beyond the XR2008IMP8 specification. Slew rate of 45V/µs and -3dB bandwidth of 20 MHz provide comparable performance. The 8-MSOP package matches the original footprint. Operating temperature range is -40°C to 85°C, which is narrower than the original specification. ROHS3 compliance and active status are confirmed. This substitute is appropriate for applications requiring extended supply voltage capability.

Temperature-Limited Substitutes: MAX4128EUA+T and MAX4257EUA+

The MAX4128EUA+T and MAX4257EUA+ are general purpose dual-channel amplifiers with operating temperature range limited to -40°C to 85°C. These devices are not suitable for applications requiring the full -40°C to 125°C temperature range of the XR2008IMP8. Selection of these substitutes requires verification that the reduced temperature specification is acceptable for the target application.

Frequently Asked Questions (FAQ)

Q1: Can the LMV797MMX/NOPB be used as a direct replacement for the XR2008IMP8 in existing PCB designs?

The LMV797MMX/NOPB uses an 8-VSSOP package while the XR2008IMP8 uses 8-MSOP. Both packages have identical pin counts and compatible footprints for standard surface mount assembly. Pin-to-pin electrical compatibility is confirmed. PCB layout verification is recommended to ensure package outline compatibility with existing solder pad patterns.

Q2: What is the primary difference between general purpose and CMOS amplifier substitutes?

General purpose amplifiers (LMV797MMX/NOPB, MAX4128EUA+T, MP5220DK-LF-Z) typically feature higher input bias current (nanoampere to microampere range) and higher input offset voltage. CMOS amplifiers (AD8616ARMZ, AD8652ARMZ, LMV862MM/NOPB, LTC6244HMS8#TRPBF, OPA2322AIDGKR) feature significantly lower input bias current (picoampere range) and lower input offset voltage, with reduced supply current consumption. Selection depends on application requirements for input impedance and offset voltage performance.

Q3: Which substitute provides the highest slew rate and bandwidth?

The AD8652ARMZ and LTC6244HMS8#TRPBF both provide gain bandwidth product of 50 MHz, exceeding the XR2008IMP8 specification of 33 MHz. The AD8652ARMZ offers slew rate of 41V/µs, while the LTC6244HMS8#TRPBF provides 35V/µs. Both exceed the XR2008IMP8 slew rate of 50V/µs in different performance dimensions. Application-specific requirements determine which substitute is optimal.

Q4: Are all substitute parts ROHS3 compliant?

All active substitute parts listed (LMV797MMX/NOPB, AD8616ARMZ, AD8652ARMZ, LMV862MM/NOPB, LTC6244HMS8#TRPBF, MAX4128EUA+T, MAX4257EUA+, OPA2322AIDGKR, MP5220DK-LF-Z) are confirmed ROHS3 compliant. The original XR2008IMP8 is obsolete and ROHS compliance status is not specified.

Q5: What is the supply voltage compatibility range for substitutes?

The XR2008IMP8 operates from 2.5V to 5.5V. All listed substitutes support minimum supply voltage of 1.8V to 3.2V and maximum supply voltage of 5V to 18V. The MP5220DK-LF-Z extends to 18V maximum, enabling higher-voltage applications. Verify that the selected substitute's supply voltage range encompasses the target application requirements.

Q6: Which substitute is recommended for battery-powered applications requiring minimal power consumption?

The LMV797MMX/NOPB and OPA2322AIDGKR offer the lowest supply current per channel (1.3 mA and 1.6 mA respectively), making them suitable for battery-powered applications. The LMV797MMX/NOPB additionally provides the lowest input bias current (0.1 pA) among general purpose substitutes, reducing power dissipation in high-impedance signal paths.

Q7: Can substitutes with 8-VSSOP packages be used interchangeably with 8-MSOP packages on the same PCB?

The 8-VSSOP and 8-MSOP packages have identical pin counts and compatible electrical pin assignments for dual-channel operational amplifiers. Mechanical footprints differ slightly in body dimensions. PCB layout verification is required to confirm that existing solder pad patterns accommodate the substitute package outline. Standard surface mount assembly equipment can handle both package types.

Q8: What is the operating temperature limitation for MAX4128EUA+T and MAX4257EUA+ substitutes?

Both MAX4128EUA+T and MAX4257EUA+ are rated for -40°C to 85°C operating temperature, which is narrower than the XR2008IMP8 specification of -40°C to 125°C. These substitutes are not suitable for applications requiring operation above 85°C. Alternative substitutes with full -40°C to 125°C range are recommended for extended temperature applications.

Q9: Which substitute offers the best input offset voltage performance?

The AD8616ARMZ provides the lowest input offset voltage among CMOS substitutes at 23 µV. The MP5220DK-LF-Z offers the lowest input offset voltage among general purpose substitutes at 2 mV. Selection depends on whether CMOS or general purpose amplifier characteristics are required for the target application.

Q10: Are there inventory considerations when selecting a substitute?

All listed substitute parts are actively manufactured with substantial inventory availability. LMV797MMX/NOPB has the highest inventory (28,100 units), followed by AD8652ARMZ (15,200 units) and AD8616ARMZ (15,100 units). Inventory levels support both prototype development and production-volume requirements. Consult current distributor stock levels for specific procurement timelines.

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