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DS1706ESA/T&R Equivalent & Substitute Parts
Part Overview
The DS1706ESA/T&R is a Power Management IC (PMIC) supervisor manufactured by Analog Devices Inc./Maxim Integrated, designed for single-channel power-on reset and voltage monitoring applications. This component operates as a push-pull, totem pole output supervisor with a 4.4V threshold and 130ms minimum reset timeout in an 8-SOIC surface mount package.
The DS1706ESA/T&R is classified as obsolete. Active equivalent and substitute parts are available from multiple manufacturers including Analog Devices, Microchip Technology, MaxLinear, and STMicroelectronics. These alternatives maintain functional compatibility while offering improved product status and compliance certifications.
Substiute Parts
Key Parameters
| Parameter | DS1706ESA/T&R |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Category | Power Management (PMIC) |
| Type | Simple Reset/Power-On Reset |
| Number of Voltages Monitored | 1 |
| Voltage - Threshold | 4.4V |
| Output | Push-Pull, Totem Pole |
| Reset | Active Low |
| Reset Timeout | 130ms Minimum |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Product Status | Obsolete |
| RoHS Status | RoHS non-compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the DS1706ESA/T&R is determined by the following critical parameters:
Primary Compatibility Criteria:
- Package / Case: 8-SOIC (0.154", 3.90mm Width)
- Mounting Type: Surface Mount
- Type: Simple Reset/Power-On Reset
- Number of Voltages Monitored: 1
- Reset: Active Low
- Operating Temperature Range: -40°C ~ 85°C minimum
- Moisture Sensitivity Level (MSL): 1
Secondary Compatibility Parameters:
- Voltage - Threshold: 4.4V (primary threshold group)
- Output: Push-Pull, Totem Pole (preferred for direct replacement)
- Reset Timeout: 130ms Minimum (baseline specification)
Substitute parts are grouped into two categories:
Category A - Direct Parametric Equivalents: Parts matching all primary criteria and voltage threshold of 4.4V with push-pull output topology.
Category B - Functional Alternatives: Parts matching all primary criteria with compatible voltage thresholds (within application tolerance) and alternative output configurations or reset timeout specifications.
Parameter Comparison
| Part Number | Manufacturer | Voltage Threshold | Output Type | Reset Timeout | Operating Temp | Package | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|
| DS1706ESA/T&R | Analog Devices Inc./Maxim Integrated | 4.4V | Push-Pull, Totem Pole | 130ms Min | -40°C ~ 85°C | 8-SOIC | Obsolete | RoHS non-compliant |
| DS1706ESA+T&R | Analog Devices Inc./Maxim Integrated | 4.4V | Push-Pull, Totem Pole | 130ms Min | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
| ADM706ARZ | Analog Devices Inc. | 4.4V | Push-Pull, Totem Pole | 160ms Min | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
| ADM706ARZ-REEL | Analog Devices Inc. | 4.4V | Push-Pull, Totem Pole | 160ms Min | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
| ADM706ARZ-REEL7 | Analog Devices Inc. | 4.4V | Push-Pull, Totem Pole | 160ms Min | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
| ADM706SARZ | Analog Devices Inc. | 2.93V | Push-Pull, Totem Pole | 160ms Min | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
| ADM706SARZ-REEL | Analog Devices Inc. | 2.93V | Push-Pull, Totem Pole | 160ms Min | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
| MIC706MY | Microchip Technology | 4.4V | Not Specified | 140ms Min | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
| MIC706MY-TR | Microchip Technology | 4.4V | Not Specified | 140ms Min | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
| SP706EN-L/TR | MaxLinear, Inc. | 4.4V | Not Specified | 140ms Min | -40°C ~ 85°C | 8-SOIC | Active | RoHS Compliant |
| STM706YM7F | STMicroelectronics | 4.38V | Push-Pull, Totem Pole | 140ms Min | -40°C ~ 125°C | 8-SOIC | Active | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Recommendation - DS1706ESA+T&R: This part is the direct parametric equivalent to DS1706ESA/T&R with identical electrical specifications and package configuration. It maintains the 4.4V threshold, push-pull totem pole output, and 8-SOIC form factor. The key advantage is active product status and ROHS3 compliance, addressing the obsolescence and compliance limitations of the original part. Inventory availability is 2,749 units.
Secondary Recommendations - ADM706 Series (Analog Devices): The ADM706ARZ, ADM706ARZ-REEL, and ADM706ARZ-REEL7 variants provide active alternatives with identical 4.4V threshold and push-pull output topology. Reset timeout is specified at 160ms minimum, which exceeds the original 130ms specification and is suitable for applications with extended reset requirements. All variants are ROHS3 compliant and actively manufactured. The ADM706ARZ-REEL7 offers the highest inventory availability at 27,036 units.
Alternative Threshold Option - ADM706SARZ Series: For applications requiring a lower voltage threshold, the ADM706SARZ and ADM706SARZ-REEL provide 2.93V threshold monitoring with identical push-pull output and 8-SOIC packaging. These are suitable only if the application circuit design accommodates the lower threshold voltage. ROHS3 compliance and active status are maintained.
Cross-Manufacturer Alternatives: MIC706MY (Microchip Technology), SP706EN-L/TR (MaxLinear), and STM706YM7F (STMicroelectronics) provide functional alternatives with 4.4V or equivalent thresholds in 8-SOIC packages. Output topology specifications are not provided for MIC706 and SP706 variants. STM706YM7F extends the operating temperature range to -40°C ~ 125°C, providing additional thermal margin for high-temperature applications.
Compliance Considerations: All recommended substitutes are ROHS3 compliant or RoHS compliant, addressing the non-compliance status of the obsolete DS1706ESA/T&R. Selection should prioritize parts with active product status to ensure long-term supply chain stability.
Frequently Asked Questions (FAQ)
Q: Can DS1706ESA+T&R be used as a direct drop-in replacement for DS1706ESA/T&R?
A: Yes. DS1706ESA+T&R is the parametric equivalent with identical voltage threshold (4.4V), output type (push-pull, totem pole), reset timeout (130ms minimum), operating temperature range (-40°C ~ 85°C), and 8-SOIC package. The primary differences are active product status and ROHS3 compliance.
Q: What is the difference between ADM706ARZ, ADM706ARZ-REEL, and ADM706ARZ-REEL7?
A: All three variants are electrically identical with 4.4V threshold and push-pull output. The differences are packaging format: ADM706ARZ is supplied in tube packaging, while ADM706ARZ-REEL and ADM706ARZ-REEL7 are supplied in cut tape with Digi-Reel format. Selection depends on assembly process requirements and inventory needs.
Q: Why do ADM706SARZ variants have a different voltage threshold (2.93V)?
A: The ADM706SARZ series is designed for lower voltage monitoring applications. These parts are not direct replacements for the 4.4V threshold DS1706ESA/T&R unless the application circuit is specifically designed for 2.93V threshold operation.
Q: Are MIC706MY and SP706EN-L/TR suitable replacements?
A: These parts maintain the 4.4V threshold, active low reset, 8-SOIC package, and -40°C ~ 85°C operating range. However, output topology is not specified for these variants. Confirmation of output type compatibility with the application circuit is required before selection.
Q: Does STM706YM7F offer any advantages over other alternatives?
A: STM706YM7F extends the operating temperature range to -40°C ~ 125°C, providing 40°C additional upper temperature margin compared to the original DS1706ESA/T&R specification. This is beneficial for high-temperature applications. The voltage threshold is 4.38V, which is within typical application tolerance of the 4.4V specification.
Q: What packaging options are available for high-volume assembly?
A: For automated assembly processes, tape and reel packaging is recommended: DS1706ESA+T&R, ADM706ARZ-REEL, ADM706ARZ-REEL7, MIC706MY-TR, and SP706EN-L/TR. For lower-volume or manual assembly, tube packaging variants (ADM706ARZ, MIC706MY) are available.
Q: Are all substitute parts RoHS compliant?
A: Yes. All recommended substitute parts are either ROHS3 compliant or RoHS compliant, addressing the non-compliance status of the obsolete DS1706ESA/T&R.
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