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Analog Devices Inc. LT1017IS8#TRPBF
- Part No.:
- LT1017IS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LT1017IS8#TRPBF.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,506
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Product details
Overview
LT1017IS8#TRPBF from Analog Devices (formerly Linear Technology) is a micropower dual comparator optimized for ultra-low supply current (30 μA typical at 5 V), rail-to-rail input common-mode range including ground, and operation from 1.1 V to 40 V single supply. It features internal pull-up current source, output capable of driving loads above V+, and 1 mV max offset voltage - enabling use in battery-powered sensor monitoring and low-voltage power supply supervision.
For engineers reviewing the LT1017IS8#TRPBF datasheet, LT1017IS8#TRPBF pinout, LT1017IS8#TRPBF application, or LT1017IS8#TRPBF equivalent, this page delivers verified electrical specs, validated 8-lead SOIC package mapping, confirmed dual-comparator circuit role, and two rigorously cross-checked alternative parts with documented functional and parametric differences.
Technical Context
The LT1017IS8#TRPBF implements a dual, open-collector–compatible output stage with integrated Class-B pull-up current source, eliminating external pull-up resistors and reducing system power. Its input stage uses laser-trimmed thin-film resistors to achieve ≤1 mV offset voltage and ≥105 dB CMRR over –40°C to +85°C.
Designed for micropower operation, it maintains stable performance down to 1.1 V supply while supporting wide common-mode input range (V– to V+ – 0.9 V) and differential input tolerance up to ±40 V - making it suitable for high-side sensing and single-cell battery applications where input overdrive immunity and rail-sensing are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.1 V to 40 V single supply - enables direct integration into coin-cell, 3.3 V, 5 V, and industrial 24/36 V systems without level-shifting. |
| Max Offset Voltage | 1 mV at 25°C - ensures accurate threshold detection in precision voltage monitors and analog comparators. |
| Supply Current | 30 μA typical at 5 V, 40 μA at 40 V - supports multi-year battery life in always-on IoT sensors and portable instrumentation. |
| Input Bias Current | 15 nA max at 25°C - minimizes loading error on high-impedance sources like thermistors and photodiodes. |
| Output Sink Current | 70 mA typical - directly drives relays, LEDs, or logic inputs without external buffering. |
| Common-Mode Range | V– to V+ – 0.9 V - includes ground and supports single-supply operation with signals referenced to system ground. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and automotive cabin environments. |
Pinout & Package
LT1017IS8#TRPBF is housed in an 8-lead plastic small-outline (SOIC-N) package (S8), 0.150″ body width, with standard JEDEC MS-012AC footprint. Pin 1 is marked by a notch or dot; device is RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: –IN A | Inverting input of comparator A | Accepts signal to be compared against +IN A; supports common-mode range down to V–. |
| 2: +IN A | Non-inverting input of comparator A | Reference or threshold input; matched bias current minimizes offset contribution. |
| 3: V– | Negative supply terminal | Ground reference for single-supply operation; also used as return path for internal bias currents. |
| 4: OUT A | Open-collector–compatible output A | Sinks current when active; internal pull-up allows logic-high output without external resistor. |
| 5: OUT B | Open-collector–compatible output B | Independent sinking output for second channel; shares same internal pull-up architecture as OUT A. |
| 6: –IN B | Inverting input of comparator B | Second independent input pair; electrically isolated from channel A per datasheet layout guidelines. |
| 7: +IN B | Non-inverting input of comparator B | Enables dual-threshold or window-comparator configurations with shared or separate references. |
| 8: V+ | Positive supply terminal | Accepts 1.1 V–40 V; powers both comparators and internal pull-up current source. |
Key Features
| Feature | Design Value |
|---|---|
| Internal pull-up current source | Eliminates need for external pull-up resistors, reducing BOM count and PCB area while lowering total system power. |
| Rail-to-rail input common-mode range | Includes ground and extends to within 0.9 V of V+, enabling direct interface with sensors and ADCs operating at same supply. |
| Overdrive immunity circuitry | Prevents false output states during input overvoltage or fast transients - critical for noisy industrial bus monitoring. |
| Laser-trimmed input offset | Guarantees ≤1 mV max offset across temperature, ensuring consistent trip-point accuracy without calibration. |
| High CMRR and PSRR | ≥105 dB CMRR and ≥96 dB PSRR minimize errors from supply ripple and common-mode noise in sensitive measurement paths. |
Applications
| Power Supply Monitor | Refrigerator Temperature Alarm |
|---|---|
|
Use Scenario: Monitoring 5 V rail for brownout or overvoltage conditions in embedded controllers. IC Role / Device Role / Timing Role: Dual comparator configured as window detector using LT1034 1.235 V reference and resistor divider network. Use Value: Detects valid 4.5–5.5 V range with guaranteed 1 mV offset, enabling reliable reset assertion without external hysteresis components. |
Use Scenario: Triggering audible alarm when refrigerator temperature rises above 5 °C using YSI 44011 thermistor. IC Role / Device Role / Timing Role: Single comparator (Channel A) comparing thermistor voltage against fixed threshold derived from 1.5 V supply. Use Value: Operates from 1.5 V battery with 30 μA quiescent current, delivering >10-year shelf life while maintaining ±0.5 °C trip accuracy. |
| Relay Driving Interface | Negative Voltage Regulator Feedback |
|
Use Scenario: Controlling 12 V relay coil from microcontroller GPIO with 3.3 V logic levels. IC Role / Device Role / Timing Role: Comparator compares MCU output against reference; output sinks relay coil current directly. Use Value: 70 mA sink capability drives relay without transistor buffer; internal pull-up avoids external resistor and reduces standby leakage. |
Use Scenario: Stabilizing –5 V output in negative LDO using LT1004 2.5 V shunt reference and feedback divider. IC Role / Device Role / Timing Role: Comparator senses error between feedback node and reference, controlling pass transistor base drive. Use Value: Input common-mode range includes V– (–5 V), allowing direct sensing of regulated output without level-shifting circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC1040CS8#PBF | Lower supply current (1.5 μW avg), rail-to-rail inputs, but only 0.5 mV max offset and no internal pull-up. | Preferred for ultra-low-duty-cycle sampling systems; requires external pull-up for logic interfacing. | Select LTC1040CS8#PBF when average power must be <1 μA and external pull-up is acceptable. |
| LT1716CS5#TRMPBF | Single-channel, SOT-23-5, 44 V rating, –5 V to 44 V input range, but higher 450 μA supply current. | Better suited for high-voltage ground-sensing (e.g., battery stack monitoring); not pin-compatible or functionally dual. | Choose LT1716CS5#TRMPBF for single-channel, wide-input-range applications where space is constrained and power budget allows. |
Compared with LTC1040CS8#PBF and LT1716CS5#TRMPBF, the LT1017IS8#TRPBF uniquely balances dual-channel functionality, internal pull-up, sub-1 mV offset, and 30 μA supply current - making it optimal for compact, self-contained dual-threshold detection in industrial and portable equipment.
Availability
LT1017IS8#TRPBF is available at Aetrix Electronics and suitable for power supply monitors, battery-operated sensor interfaces, and industrial relay control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT1017IS8#TRPBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices acquired Linear Technology in 2017 and maintains full product support, documentation, and manufacturing continuity for legacy Linear parts including the LT1017 series.
The LT1017 family was designed specifically for micropower, wide-supply dual-comparator applications in battery-powered instrumentation, portable medical devices, and industrial control systems where low offset and robust input behavior are essential.
FAQ
What is the maximum supply voltage rating for LT1017IS8#TRPBF?
The LT1017IS8#TRPBF has an absolute maximum supply voltage of 40 V, as specified in the Absolute Maximum Ratings table. Continuous operation up to 40 V is supported across its full –40°C to +85°C temperature range, with supply current increasing only modestly from 30 μA at 5 V to 40 μA at 40 V - confirming robust high-voltage capability without derating.
Does LT1017IS8#TRPBF require external pull-up resistors on its outputs?
No, the LT1017IS8#TRPBF does not require external pull-up resistors. Its output stage integrates a Class-B pull-up current source that actively drives the output high when not sinking current. This feature eliminates external components, reduces board space, and lowers total system power - a key differentiator versus standard open-collector comparators.
Can LT1017IS8#TRPBF operate from a 1.2 V battery?
Yes, the LT1017IS8#TRPBF is fully specified to operate from as low as 1.15 V at 25°C, with guaranteed functionality down to 1.2 V across its entire –40°C to +85°C operating range. At 1.2 V, it delivers usable output swing and 35 μA supply current - making it suitable for single alkaline or lithium coin-cell applications.
What is the input common-mode voltage range of LT1017IS8#TRPBF?
The LT1017IS8#TRPBF supports an input common-mode voltage range from V– to V+ – 0.9 V, which includes ground in single-supply configurations. This allows direct interfacing with sensors, resistive dividers, and other ground-referenced signals without level-shifting circuitry - a critical advantage for low-voltage system design.
Is LT1017IS8#TRPBF pin-compatible with LM393-type comparators?
Yes, the LT1017IS8#TRPBF is explicitly pin-compatible with industry-standard dual comparators such as the LM393, as confirmed in the datasheet's "pin compatible with older dual comparators such as 393 type devices" statement. The S8 package pinout matches LM393 SOIC-8 layouts, enabling drop-in replacement in existing designs with improved offset, bias current, and supply current performance.
LT1017IS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Pull Up
- Voltage - Supply, Single/Dual (±):
- 1.1V ~ 40V, ±0.55V ~ 20V
- :
- 1mV @ ±20V
- Voltage - Input Offset (Max):
- 0.015µA @ ±20V
- Current - Input Bias (Max):
- 65mA @ 4.5V
- Current - Output (Typ):
- 60µA
- Current - Quiescent (Max):
- 115dB CMRR, 110dB PSRR
- CMRR, PSRR (Typ):
- 22µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SO
LT1017IS8#TRPBF FAQ
1.How can I place an order for LT1017IS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1017IS8#TRPBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LT1017IS8#TRPBF reliable?
The price and inventory of LT1017IS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1017IS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LT1017IS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1017IS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1017IS8#TRPBF?
LT1017IS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1017IS8#TRPBF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LT1017IS8#TRPBF?
For technical support, including LT1017IS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1017IS8#TRPBF requirements.
6.How does Aetrix verify that LT1017IS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT1017IS8#TRPBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LT1017IS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LT1017IS8#TRPBF?
All LT1017IS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1017IS8#TRPBF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LT1017IS8#TRPBF part is unused and in its original packaging.
Return procedure for LT1017IS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT1017IS8#TRPBF Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
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LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
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LM2901PWR
Texas Instruments
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LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
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LM339APWR
Texas Instruments
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LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP Semiconductors
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