ALD1722GSAL Equivalent & Substitute Parts

Part Overview

The ALD1722GSAL is a general-purpose operational amplifier manufactured by Advanced Linear Devices Inc., housed in an 8-SOIC surface mount package. This rail-to-rail output amplifier is designed for linear signal processing applications requiring low input bias current and moderate bandwidth performance. The device is currently in active production status with 860 units available in inventory.

Substitute parts are necessary when the primary device becomes unavailable, when alternative packaging formats are required, or when application requirements demand enhanced performance specifications such as higher slew rate, increased gain bandwidth product, or extended operating temperature ranges.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Slew Rate	2.8	V/µs
Gain Bandwidth Product	1.7	MHz
Current - Input Bias	0.01	pA
Voltage - Input Offset	80	µV
Current - Supply	800	µA
Current - Output / Channel	8	mA
Voltage - Supply Span (Min)	4	V
Voltage - Supply Span (Max)	10	V
Operating Temperature	0 to 70	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the ALD1722GSAL is determined by the following mandatory criteria:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure direct PCB footprint compatibility without layout modifications.

Functional Equivalence: All substitutes must be single-circuit, general-purpose operational amplifiers with rail-to-rail output capability, maintaining the same functional classification.

Supply Voltage Range: Substitute parts must support the minimum 4 V supply requirement of the ALD1722GSAL. Substitutes with extended maximum supply voltage ratings (up to 12 V) remain compatible as they encompass the original 10 V maximum specification.

Output Current Capability: Substitute parts must deliver a minimum of 8 mA output current per channel to satisfy load driving requirements.

Compliance Requirements: All substitute parts must maintain ROHS3 compliance and EAR99 export classification to ensure regulatory and procurement consistency.

Substitutes may exceed the original specifications in slew rate, gain bandwidth product, input bias current, and operating temperature range without compromising compatibility. These enhanced parameters provide design flexibility for applications requiring improved performance margins.

Parameter Comparison

Parameter	ALD1722GSAL	LMP7707MA/NOPB	LTC6240HVCS8#PBF	LTC6240HVHS8#PBF	LTC6240HVIS8#PBF	OPA725AID	TL971QDRQ1	TLV2241ID
Manufacturer	Advanced Linear Devices Inc.	Texas Instruments	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Texas Instruments	Texas Instruments	Texas Instruments
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose
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
Number of Circuits	1	1	1	1	1	1	1	1
Slew Rate (V/µs)	2.8	5.9	10	10	10	30	5	0.002
Gain Bandwidth Product (MHz)	1.7	15	18	18	18	20	12	0.0055
Current - Input Bias (pA)	0.01	0.2	0.5	0.5	0.5	30	200	100
Voltage - Input Offset (µV)	80	37	60	60	60	1200	1000	600
Current - Supply (µA)	800	790	2700	2700	2700	4300	2000	1
Current - Output / Channel (mA)	8	86	35	35	35	40	80	0.2
Voltage - Supply Span Min (V)	4	2.7	2.8	2.8	2.8	4	2.7	2.5
Voltage - Supply Span Max (V)	10	12	11	11	11	12	12	12
Operating Temperature (°C)	0 to 70	-40 to 125	0 to 70	-40 to 125	-40 to 85	-40 to 125	-40 to 125	-40 to 85
Product Status	Active	Active	Active	Active	Active	Active	Active	Obsolete
RoHS Status	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)	1 (Unlimited)	2 (1 Year)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitutes (Active Status, Recommended for New Designs)

The LTC6240HVCS8#PBF, LTC6240HVHS8#PBF, and LTC6240HVIS8#PBF from Analog Devices Inc. are functionally equivalent substitutes with active product status. These devices maintain the 8-SOIC package format and exceed the ALD1722GSAL performance envelope with 10 V/µs slew rate and 18 MHz gain bandwidth product. The LTC6240HVHS8#PBF variant extends the operating temperature range to -40°C to 125°C, providing enhanced thermal coverage for demanding applications. All three variants are ROHS3 compliant with unlimited moisture sensitivity rating.

The LMP7707MA/NOPB from Texas Instruments offers active status with superior slew rate (5.9 V/µs) and gain bandwidth product (15 MHz) while maintaining comparable supply current consumption. This device supports extended operating temperature range (-40°C to 125°C) and provides 86 mA output current capability, significantly exceeding the 8 mA requirement of the ALD1722GSAL.

The OPA725AID and OPA725AIDR from Texas Instruments deliver the highest performance metrics with 30 V/µs slew rate and 20 MHz gain bandwidth product. Both variants maintain active status and support -40°C to 125°C operating temperature range. The OPA725AIDR is supplied in Tape & Reel packaging format for high-volume manufacturing environments.

Secondary Substitutes (Extended Temperature Range)

The TL971QDRQ1 from Texas Instruments is an automotive-grade device qualified to AEC-Q100 standard with active status. This variant provides -40°C to 125°C operating temperature coverage and 80 mA output current capability. The automotive qualification enables deployment in temperature-critical applications.

Obsolete Status (Not Recommended for New Designs)

The TLV2241ID from Texas Instruments carries obsolete product status and exhibits significantly degraded performance characteristics including 0.002 V/µs slew rate and 5.5 kHz gain bandwidth product. This device is unsuitable for applications requiring the performance envelope of the ALD1722GSAL and should not be selected for new designs.

Frequently Asked Questions (FAQ)

Q: Can I directly replace ALD1722GSAL with any of the listed substitutes without PCB modifications?

A: Yes. All substitute parts use the identical 8-SOIC (0.154", 3.90mm Width) surface mount package, ensuring direct footprint compatibility. No PCB layout changes are required for mechanical and electrical connection.

Q: What is the primary difference between LTC6240HVCS8#PBF, LTC6240HVHS8#PBF, and LTC6240HVIS8#PBF?

A: These three variants are identical in electrical performance and package format. The primary difference is operating temperature range: LTC6240HVCS8#PBF operates 0°C to 70°C (matching ALD1722GSAL), LTC6240HVHS8#PBF operates -40°C to 125°C, and LTC6240HVIS8#PBF operates -40°C to 85°C. Select based on your application's thermal requirements.

Q: Which substitute offers the best performance improvement over ALD1722GSAL?

A: The OPA725AID and OPA725AIDR provide the highest performance metrics with 30 V/µs slew rate and 20 MHz gain bandwidth product, representing approximately 10.7× improvement in slew rate and 11.8× improvement in bandwidth compared to the ALD1722GSAL.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, ensuring regulatory consistency with the original ALD1722GSAL specification.

Q: What is the difference between OPA725AID and OPA725AIDR?

A: Both devices are electrically identical with identical performance specifications and operating temperature range (-40°C to 125°C). The primary difference is packaging format: OPA725AID is supplied in Tube packaging, while OPA725AIDR is supplied in Tape & Reel (TR) format for automated assembly processes.

Q: Can I use TLV2241ID as a substitute?

A: The TLV2241ID carries obsolete product status and exhibits performance characteristics substantially below the ALD1722GSAL requirement (0.002 V/µs slew rate versus 2.8 V/µs, and 5.5 kHz bandwidth versus 1.7 MHz). This device is not suitable for applications requiring ALD1722GSAL performance and should not be selected.

Q: Which substitute has the lowest supply current consumption?

A: The LMP7707MA/NOPB and ALD1722GSAL have comparable supply current consumption at 790 µA and 800 µA respectively. The TLV2241ID exhibits the lowest consumption at 1 µA but is obsolete and unsuitable for this application.

Q: Do all substitutes support the 4 V minimum supply voltage of ALD1722GSAL?

A: No. The OPA725AID and OPA725AIDR require a minimum 4 V supply voltage, matching the ALD1722GSAL. The LMP7707MA/NOPB, LTC6240 variants, and TL971QDRQ1 support lower minimum supply voltages (2.7 V to 2.8 V), providing additional design flexibility. The TLV2241ID supports 2.5 V minimum supply voltage.

Q: What is the moisture sensitivity rating difference between substitutes?

A: Most substitutes maintain Moisture Sensitivity Level 1 (Unlimited), identical to ALD1722GSAL. The OPA725AID and OPA725AIDR carry MSL 2 (1 Year), requiring controlled storage conditions and limiting shelf life to one year after package opening.

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