SP690ACP-L Equivalent & Substitute Parts

Part Overview

The SP690ACP-L is a single-channel power supply supervisor IC manufactured by MaxLinear, Inc., housed in an 8-DIP package. This device monitors a single voltage threshold at 4.65V and provides active-low reset output with a 140ms minimum reset timeout. The SP690ACP-L is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring supervisor functionality.

Key Parameters

Parameter	SP690ACP-L
Manufacturer	MaxLinear, Inc.
Category	Power Management (PMIC)
Package / Case	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
Type	Simple Reset/Power-On Reset
Number of Voltages Monitored	1
Voltage - Threshold	4.65V
Reset	Active Low
Reset Timeout	140ms Minimum
Operating Temperature	0°C ~ 70°C (TA)
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the SP690ACP-L is determined by the following critical parameters:

Package compatibility: 8-DIP (0.300", 7.62mm) through-hole mounting
Voltage threshold: 4.65V single-channel monitoring
Reset polarity: Active Low
Reset timeout: 140ms minimum
Output type: Determines functional compatibility

Substitute parts are grouped into two categories based on output configuration:

Category 1: Push-Pull/Totem Pole Output — ADM690AANZ, ADM694ANZ, MAX690ACPA+, MAX690AEPA+, MAX690CPA+, MAX690EPA+, MAX694CPA+ — These parts provide push-pull output suitable for direct microprocessor reset inputs.

Category 2: Open Drain/Open Collector Output — LTC690CN8#PBF, LTC690IN8#PBF — These parts require external pull-up resistors and are suitable for applications requiring open-drain reset signaling.

Parameter Comparison

Part Number	Manufacturer	Output Type	Reset Timeout	Operating Temperature	Product Status	RoHS Status
SP690ACP-L	MaxLinear, Inc.	—	140ms Minimum	0°C ~ 70°C	Obsolete	—
ADM690AANZ	Analog Devices Inc.	Push-Pull, Totem Pole	140ms Minimum	-40°C ~ 85°C	Active	ROHS3 Compliant
ADM690ANZ	Analog Devices Inc.	Push-Pull, Totem Pole	35ms Minimum	-40°C ~ 85°C	Active	ROHS3 Compliant
ADM694ANZ	Analog Devices Inc.	Push-Pull, Totem Pole	140ms Minimum	-40°C ~ 85°C	Active	ROHS3 Compliant
LTC690CN8#PBF	Analog Devices Inc.	Open Drain or Open Collector	35ms Minimum	0°C ~ 70°C	Active	ROHS3 Compliant
LTC690IN8#PBF	Analog Devices Inc.	Open Drain or Open Collector	35ms Minimum	-40°C ~ 85°C	Active	ROHS3 Compliant
MAX690ACPA+	Analog Devices Inc./Maxim Integrated	Push-Pull, Totem Pole	140ms Minimum	0°C ~ 70°C	Active	ROHS3 Compliant
MAX690AEPA+	Analog Devices Inc./Maxim Integrated	Push-Pull, Totem Pole	140ms Minimum	-40°C ~ 85°C	Active	ROHS3 Compliant
MAX690CPA+	Analog Devices Inc./Maxim Integrated	Push-Pull, Totem Pole	35ms Minimum	0°C ~ 70°C	Active	ROHS3 Compliant
MAX690EPA+	Analog Devices Inc./Maxim Integrated	Push-Pull, Totem Pole	35ms Minimum	-40°C ~ 85°C	Active	ROHS3 Compliant
MAX694CPA+	Analog Devices Inc./Maxim Integrated	Push-Pull, Totem Pole	140ms Minimum	0°C ~ 70°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (140ms Reset Timeout, Push-Pull Output, 0°C ~ 70°C): MAX690ACPA+ and MAX694CPA+ are pin-compatible direct replacements for the SP690ACP-L with identical reset timeout specifications and operating temperature range. Both are active products with ROHS3 compliance.

Extended Temperature Range (140ms Reset Timeout, Push-Pull Output, -40°C ~ 85°C): ADM690AANZ and ADM694ANZ provide the same 140ms reset timeout with extended operating temperature coverage. These are suitable for applications requiring wider temperature operation while maintaining functional equivalence.

Faster Reset Timeout (35ms Reset Timeout, Push-Pull Output): MAX690CPA+, MAX690EPA+, and ADM690ANZ offer reduced reset timeout specifications. These are applicable only when system design permits faster reset assertion and the 35ms timeout meets application requirements.

Open Drain Output (35ms Reset Timeout): LTC690CN8#PBF and LTC690IN8#PBF provide open-drain output requiring external pull-up resistors. These are suitable for applications with open-drain reset bus architectures. LTC690IN8#PBF extends temperature range to -40°C ~ 85°C.

All substitute parts are active products with ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance for new designs.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different reset timeout? A: Reset timeout substitution depends on system design. The SP690ACP-L specifies 140ms minimum. Parts with 35ms timeout (ADM690ANZ, MAX690CPA+, MAX690EPA+, LTC690CN8#PBF, LTC690IN8#PBF) provide faster reset assertion. Verify that your application timing requirements accommodate the shorter timeout before substitution.

Q: What is the difference between push-pull and open-drain output? A: Push-pull output (ADM690AANZ, ADM694ANZ, MAX690ACPA+, MAX690AEPA+, MAX690CPA+, MAX690EPA+, MAX694CPA+) actively drives the reset signal high and low, suitable for direct microprocessor reset inputs. Open-drain output (LTC690CN8#PBF, LTC690IN8#PBF) requires an external pull-up resistor and is used in open-drain bus architectures.

Q: Are all substitute parts pin-compatible with the SP690ACP-L? A: All substitute parts use the 8-DIP (0.300", 7.62mm) package with through-hole mounting. Pin compatibility depends on output type and specific circuit design. Verify pinout against your schematic before substitution.

Q: Can I use a substitute part rated for -40°C ~ 85°C in a 0°C ~ 70°C application? A: Yes. Parts rated for -40°C ~ 85°C (ADM690AANZ, ADM694ANZ, LTC690IN8#PBF, MAX690AEPA+, MAX690EPA+) are suitable for narrower temperature ranges. The extended rating provides additional design margin and environmental robustness.

Q: What is the inventory status of substitute parts? A: All substitute parts are active products with current inventory availability ranging from 1,210 to 4,257 units in stock, ensuring supply continuity for production and replacement applications.

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