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DS1706RESA Equivalent & Substitute Parts
Part Overview
The DS1706RESA is a supervisor integrated circuit from Analog Devices Inc./Maxim Integrated, classified as a Power Management (PMIC) device. This single-channel supervisor operates with push-pull, totem pole output configuration and is housed in an 8-SOIC package. The device monitors a single voltage threshold at 2.63V with active-low reset output and a minimum reset timeout of 130ms.
The DS1706RESA is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production and maintenance requirements for systems utilizing this supervisor IC.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Part Number | DS1706RESA |
| Category | Power Management (PMIC) |
| Type | Simple Reset/Power-On Reset Supervisor |
| Number of Voltages Monitored | 1 |
| Voltage Threshold | 2.63V |
| Output Configuration | Push-Pull, Totem Pole |
| Reset Logic | Active Low |
| Reset Timeout | 130ms Minimum |
| Operating Temperature Range | -40°C ~ 85°C (TA) |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| RoHS Status | RoHS Non-Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the DS1706RESA are qualified based on the following critical parameters that determine functional and mechanical compatibility:
Core Substitution Criteria:
- Single voltage monitoring channel
- 2.63V voltage threshold
- Push-pull, totem pole output configuration
- Active-low reset logic
- 8-SOIC surface mount package (0.154", 3.90mm width)
- Operating temperature range compatibility (-40°C ~ 85°C minimum)
- Reset timeout specification (130ms minimum or greater)
- Moisture sensitivity level MSL 1
Substitute parts are grouped into two categories based on manufacturer and product status:
Category 1: Analog Devices Inc. Direct Substitutes Parts DS1706RESA+, ADM706RARZ, ADM706RARZ-REEL, and ADM706RARZ-REEL7 are manufactured by Analog Devices Inc. and maintain identical electrical specifications to the original part. These parts are currently active products with RoHS3 compliance.
Category 2: Alternative Manufacturer Substitutes Parts STM706RM6F (STMicroelectronics) and SP706REN-L/TR and SP706RCN-L/TR (MaxLinear, Inc.) provide equivalent functionality with identical voltage threshold, output configuration, reset logic, and package specifications. These parts are active products with RoHS compliance.
Parameter Comparison
| Parameter | DS1706RESA (Main) | DS1706RESA+ | STM706RM6F | ADM706RARZ | ADM706RARZ-REEL | ADM706RARZ-REEL7 | SP706REN-L/TR | SP706RCN-L/TR |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim | Analog Devices Inc./Maxim | STMicroelectronics | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | MaxLinear, Inc. | MaxLinear, Inc. |
| Voltage Threshold | 2.63V | 2.63V | 2.63V | 2.63V | 2.63V | 2.63V | 2.63V | 2.63V |
| Output Configuration | Push-Pull, Totem Pole | Push-Pull, Totem Pole | Push-Pull, Totem Pole | Push-Pull, Totem Pole | Push-Pull, Totem Pole | Push-Pull, Totem Pole | Not Specified | Not Specified |
| Reset Logic | Active Low | Active Low | Active Low | Active Low | Active Low | Active Low | Active Low | Active Low |
| Reset Timeout (Minimum) | 130ms | 130ms | 140ms | 160ms | 160ms | 160ms | 140ms | 140ms |
| Operating Temperature Range | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | 0°C ~ 70°C |
| Package / Case | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active |
| RoHS Status | RoHS Non-Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS Compliant | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Primary Recommendation: DS1706RESA+
The DS1706RESA+ is the direct successor to the DS1706RESA, manufactured by Analog Devices Inc./Maxim Integrated. This part maintains identical electrical specifications and package configuration while offering active product status and RoHS3 compliance. The DS1706RESA+ is available in tube packaging with 12,200 units in stock.
Secondary Recommendations: ADM706RARZ Series
The ADM706RARZ, ADM706RARZ-REEL, and ADM706RARZ-REEL7 are manufacturer-recommended alternatives from Analog Devices Inc. These parts provide identical voltage threshold and reset logic specifications with slightly extended reset timeout (160ms minimum versus 130ms). All variants are RoHS3 compliant and active products. Selection among these variants depends on packaging requirements: tube (ADM706RARZ), cut tape with digi-reel (ADM706RARZ-REEL), or alternative reel configuration (ADM706RARZ-REEL7).
Alternative Manufacturer Options
STM706RM6F (STMicroelectronics) and SP706REN-L/TR (MaxLinear, Inc.) provide equivalent functionality with RoHS compliance and active product status. The STM706RM6F maintains the full -40°C ~ 85°C operating temperature range. The SP706REN-L/TR also supports the full temperature range and is available in high quantity (20,200 units in stock).
Temperature-Constrained Application: SP706RCN-L/TR
The SP706RCN-L/TR from MaxLinear, Inc. is suitable only for applications with operating temperature requirements limited to 0°C ~ 70°C. This part is not recommended for systems requiring the full -40°C ~ 85°C temperature range of the original DS1706RESA.
Frequently Asked Questions (FAQ)
Q: Can DS1706RESA+ be used as a direct replacement for DS1706RESA?
A: Yes. The DS1706RESA+ maintains identical electrical specifications, voltage threshold (2.63V), output configuration (push-pull, totem pole), reset logic (active low), and package (8-SOIC). The primary differences are product status (active versus obsolete) and RoHS compliance (RoHS3 versus non-compliant).
Q: What is the difference between ADM706RARZ, ADM706RARZ-REEL, and ADM706RARZ-REEL7?
A: These three parts are electrically identical with identical voltage threshold, output configuration, and reset specifications. The differences are packaging format: ADM706RARZ is supplied in tube, ADM706RARZ-REEL in cut tape with digi-reel, and ADM706RARZ-REEL7 in an alternative reel configuration. Selection depends on assembly line requirements and tape/reel compatibility.
Q: Are there any electrical differences between the DS1706RESA and STM706RM6F?
A: Both parts share identical voltage threshold (2.63V), output configuration, reset logic, and operating temperature range (-40°C ~ 85°C). The STM706RM6F has a slightly longer reset timeout specification (140ms minimum versus 130ms minimum). This difference does not affect compatibility in most applications.
Q: Can SP706RCN-L/TR be used in all applications where DS1706RESA is used?
A: No. The SP706RCN-L/TR has a restricted operating temperature range of 0°C ~ 70°C, compared to the DS1706RESA range of -40°C ~ 85°C. This part is suitable only for applications that do not require operation below 0°C or above 70°C.
Q: What is the significance of RoHS compliance for these supervisor ICs?
A: RoHS compliance indicates the absence of restricted substances (lead, cadmium, mercury, hexavalent chromium, PBBs, PBDEs). The DS1706RESA is RoHS non-compliant, while all substitute parts listed are RoHS compliant or RoHS3 compliant. This is relevant for applications subject to RoHS regulations or customer requirements.
Q: Are all substitute parts available in the same packaging options?
A: No. Packaging availability varies by manufacturer and part number. DS1706RESA+ is available in tube. ADM706RARZ variants are available in tube, cut tape with digi-reel, or alternative reel configurations. STM706RM6F is available in cut tape with digi-reel. SP706 variants are available in tape and reel. Verify packaging availability with your supplier for your specific assembly requirements.
Q: What does "push-pull, totem pole" output configuration mean?
A: Push-pull, totem pole output means the reset output can actively drive both high and low logic levels through complementary transistor pairs. This configuration provides strong drive capability in both directions, suitable for directly driving microcontroller reset inputs without additional buffering.
Q: Is the reset timeout specification critical for substitution?
A: Reset timeout specifications must meet or exceed the original part requirement. The DS1706RESA specifies 130ms minimum. All substitute parts meet or exceed this specification (130ms to 160ms minimum), ensuring proper power-on reset sequencing and system initialization timing.
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