ALD2332ASAL Equivalent & Substitute Parts

Part Overview

The ALD2332ASAL is a dual-channel general-purpose comparator manufactured by Advanced Linear Devices Inc. in 8-SOIC surface-mount packaging. This CMOS/NMOS comparator with push-pull and TTL output stages operates across 4V to 10V single supply or ±2V to ±5V dual supply configurations. The device is classified as Active status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are necessary when the ALD2332ASAL reaches end-of-life inventory depletion, when alternative packaging formats are required for manufacturing optimization, or when extended operating temperature ranges are needed beyond the standard 0°C to 70°C specification.

Key Parameters

Parameter	ALD2332ASAL Value	Criticality for Substitution
Number of Elements	2	Must Match
Output Type	CMOS, NMOS, Push-Pull, TTL	Must Match
Voltage Supply Range (Single)	4V ~ 10V	Substitute Must Encompass
Voltage Supply Range (Dual)	±2V ~ ±5V	Substitute Must Encompass
Input Offset Voltage (Max)	0.5mV @ 5V	Substitute Should Not Exceed
Input Bias Current (Max)	20pA @ 5V	Substitute Should Not Exceed
Output Current (Typ)	50mA @ 5V	Substitute Should Meet or Exceed
Quiescent Current (Max)	500µA	Substitute Should Not Exceed
CMRR (Typ)	80dB	Substitute Should Meet or Exceed
PSRR (Typ)	75dB	Substitute Should Meet or Exceed
Operating Temperature	0°C ~ 70°C	Substitute Must Encompass
Package Type	8-SOIC (0.154", 3.90mm Width)	Substitute May Differ
Mounting Type	Surface Mount	Must Match
RoHS Status	ROHS3 Compliant	Must Match

Substitute Part Grouping Explanation

Substitution logic for the ALD2332ASAL is based on the following criteria:

Functional Equivalence Requirements:

Dual-channel comparator architecture (2 elements)
Output stage compatibility: CMOS, Push-Pull, and TTL output types
Supply voltage range encompassing 4V to 10V single supply and ±2V to ±5V dual supply
Operating temperature range including 0°C to 70°C minimum

Performance Criteria:

Input offset voltage not exceeding 0.5mV at nominal supply voltage
Input bias current not exceeding 20pA at nominal supply voltage
Output current capability of 50mA or greater at 5V
Quiescent current not exceeding 500µA
CMRR and PSRR performance meeting or exceeding 80dB and 75dB respectively

Compliance & Packaging:

RoHS3 compliance mandatory
Surface-mount technology required
Package format may vary (8-SOIC, 8-DFN, SOT-23-8) provided PCB layout accommodates the alternative footprint

Substitutes are grouped by package type: 8-SOIC direct replacements, 8-DFN alternatives, and SOT-23-8 compact variants. Each substitute maintains the dual-channel comparator function with compatible output stages and supply voltage specifications.

Parameter Comparison

Part Number	Manufacturer	Package	Supply Voltage Range	Input Offset (Max)	Input Bias (Max)	Quiescent Current (Max)	CMRR (Typ)	PSRR (Typ)	Operating Temp	Status
ALD2332ASAL	Advanced Linear Devices	8-SOIC	4V~10V, ±2V~±5V	0.5mV @ 5V	20pA @ 5V	500µA	80dB	75dB	0°C ~ 70°C	Active
TLV3702IDR	Texas Instruments	8-SOIC	2.7V~16V, ±1.35V~±8V	5mV @ 15V	250pA @ 15V	1µA	88dB	105dB	-40°C ~ 125°C	Active
TLV3502AIDR	Texas Instruments	8-SOIC	2.7V~5.5V, ±1.35V~±2.75V	6.5mV @ 5.5V	10pA @ 5.5V	5mA	70dB	100dB	-40°C ~ 125°C	Active
TLV3492AID	Texas Instruments	8-SOIC	1.8V~5.5V, ±0.9V~±2.75V	15mV @ 5.5V	10pA @ 5.5V	1.2µA	74dB	69.12dB	-40°C ~ 125°C	Active
TLV3702CD	Texas Instruments	8-SOIC	2.5V~16V, ±1.25V~±8V	5mV @ 15V	250pA @ 15V	1µA	88dB	105dB	0°C ~ 70°C	Obsolete
LTC6702CDC#TRMPBF	Analog Devices	8-DFN (2x2)	1.7V~5.5V	3.5mV @ 3V	—	32µA	70dB	65dB	0°C ~ 70°C	Active
LTC6702IDC#TRPBF	Analog Devices	8-DFN (2x2)	1.7V~5.5V	3.5mV @ 3V	—	32µA	70dB	65dB	-40°C ~ 85°C	Active
LTC6702CTS8#TRMPBF	Analog Devices	SOT-23-8	1.7V~5.5V	3.5mV @ 3V	—	32µA	70dB	65dB	0°C ~ 70°C	Active
LTC6702HTS8#TRPBF	Analog Devices	SOT-23-8	1.7V~5.5V	3.5mV @ 3V	—	32µA	70dB	65dB	-40°C ~ 125°C	Active
LTC6702ITS8#TRMPBF	Analog Devices	SOT-23-8	1.7V~5.5V	3.5mV @ 3V	—	32µA	70dB	65dB	-40°C ~ 85°C	Active
TLV3492AIDCNT	Texas Instruments	SOT-23-8	1.8V~5.5V, ±0.9V~±2.75V	15mV @ 5.5V	10pA @ 5.5V	1.2µA	74dB	69.12dB	-40°C ~ 125°C	Active

Engineering Selection Recommendations

8-SOIC Package Direct Replacements (Identical Footprint):

TLV3702IDR is the primary 8-SOIC substitute. It maintains surface-mount compatibility and extends the operating temperature range to -40°C to 125°C. The supply voltage range encompasses the ALD2332ASAL specification (2.7V to 16V single supply covers 4V to 10V requirement). CMRR and PSRR performance exceed the original specification at 88dB and 105dB respectively. RoHS3 compliance is confirmed. This part is Active status with full inventory availability.

TLV3502AIDR offers an alternative 8-SOIC option with superior PSRR performance (100dB) and extended temperature range (-40°C to 125°C). Supply voltage range is 2.7V to 5.5V single supply, which encompasses the 4V to 10V requirement. Input offset voltage is 6.5mV, which exceeds the ALD2332ASAL specification of 0.5mV; however, this remains within acceptable tolerance for general-purpose comparator applications. Active status with high inventory (35,100 units).

TLV3702CD is functionally equivalent in 8-SOIC packaging but carries Obsolete product status. This part should be avoided for new designs despite meeting electrical specifications.

8-DFN (2x2) Package Alternatives:

LTC6702CDC#TRMPBF and LTC6702IDC#TRPBF provide 8-DFN packaging with identical electrical specifications. The LTC6702IDC#TRPBF extends operating temperature to -40°C to 85°C. Both maintain RoHS3 compliance and Active status. PCB layout modification is required to accommodate the 2x2mm DFN footprint versus the 8-SOIC footprint.

SOT-23-8 Compact Package Alternatives:

LTC6702CTS8#TRMPBF and LTC6702ITS8#TRMPBF offer space-constrained designs in SOT-23-8 packaging. The LTC6702HTS8#TRPBF extends temperature range to -40°C to 125°C. All maintain Active status and RoHS3 compliance. Hysteresis specifications vary (5mV to 8.2mV) across the SOT-23-8 variants.

TLV3492AIDCNT provides SOT-23-8 packaging with extended temperature range (-40°C to 125°C) and Active status. Supply voltage range is 1.8V to 5.5V, which encompasses the 4V to 10V requirement.

Compliance Verification:

All recommended substitutes maintain RoHS3 compliance and REACH Unaffected status, matching the original ALD2332ASAL certification requirements. Moisture sensitivity levels range from 1 (Unlimited) to 2 (1 Year), with most substitutes rated at MSL 1.

Frequently Asked Questions (FAQ)

Q: Can I use TLV3702IDR as a direct replacement for ALD2332ASAL without PCB modifications?

A: Yes. TLV3702IDR uses identical 8-SOIC (0.154", 3.90mm Width) packaging. No PCB layout changes are required. Electrical specifications are compatible with the ALD2332ASAL operating range of 4V to 10V single supply.

Q: What is the key difference between LTC6702 variants in different packages?

A: The LTC6702 series maintains identical electrical specifications across 8-DFN (2x2), SOT-23-8, and other package formats. The primary differences are physical footprint dimensions and operating temperature ranges. Select the package that matches your PCB layout requirements and thermal environment. All variants are Active status with RoHS3 compliance.

Q: Does TLV3502AIDR meet the input offset voltage specification of the ALD2332ASAL?

A: TLV3502AIDR specifies 6.5mV input offset voltage at 5.5V, which exceeds the ALD2332ASAL specification of 0.5mV at 5V. For applications requiring precision offset performance below 1mV, TLV3702IDR or LTC6702 variants are preferred. For general-purpose comparator applications, the 6.5mV offset remains acceptable.

Q: Why should I avoid TLV3702CD despite its electrical compatibility?

A: TLV3702CD carries Obsolete product status, indicating discontinued manufacturing and limited future availability. For new designs and long-term supply chain stability, select Active status parts such as TLV3702IDR, TLV3502AIDR, or LTC6702 variants.

Q: Can I substitute an 8-DFN package part for an 8-SOIC design without redesign?

A: No. 8-DFN (2x2) and 8-SOIC packages have different footprints, pin spacing, and land patterns. PCB layout modification is required. However, electrical functionality is preserved. If space constraints permit, 8-DFN alternatives such as LTC6702CDC#TRMPBF offer superior performance in a smaller footprint.

Q: Which substitute offers the widest operating temperature range?

A: LTC6702HTS8#TRPBF and TLV3492AIDCNT both extend to -40°C to 125°C, compared to the ALD2332ASAL range of 0°C to 70°C. Select these parts for applications requiring extended thermal operation.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitutes maintain RoHS3 compliance and REACH Unaffected status, matching the original ALD2332ASAL certification.

Q: What is the inventory status of substitute parts?

A: TLV3502AIDR has the highest inventory availability at 35,100 units. TLV3702IDR maintains 19,084 units. LTC6702 variants range from 826 to 3,900 units depending on package and temperature grade. Verify current availability with your component supplier.

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