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STMicroelectronics TS862AIDT
- Part No.:
- TS862AIDT
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS862AIDT.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,994
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Product details
Overview
TS862AIDT from STMicroelectronics is a dual rail-to-rail micropower BiCMOS comparator operating from 2.7 V to 10 V, consuming only 6 µA per channel at 2.7 V, featuring push-pull outputs, 500 ns propagation delay at 100 mV overdrive, and rail-to-rail CMOS inputs - deployed in battery-powered smoke detectors and portable communication systems.
For engineers reviewing the TS862AIDT datasheet, TS862AIDT pinout, TS862AIDT application, or TS862AIDT equivalent, this page delivers verified electrical specs, SO-8 package details, real-world use cases, and validated alternative comparators for low-power sensing and threshold-detection designs.
Technical Context
The TS862AIDT implements two independent high-speed, ultra-low-power comparators with rail-to-rail input stages enabling full-supply-range signal detection, and push-pull output stages eliminating external pull-up resistors for direct microcontroller interfacing.
It achieves 500 ns propagation delay at 2.7 V with 100 mV overdrive while maintaining 6 µA/channel supply current, 7 mV max input offset voltage (A-grade), and 70 dB common-mode rejection at 5 V - optimized for precision, low-voltage, battery-constrained applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10 V - supports single-cell Li-ion, dual-cell alkaline, and wide-input industrial rails without regulation. |
| Supply Current per Channel | 6 µA at 2.7 V - enables multi-year operation on coin-cell batteries in always-on sensor nodes. |
| Propagation Delay | 500 ns at 100 mV overdrive, 2.7 V - provides fast response for dynamic threshold detection in alarm triggers. |
| Input Offset Voltage (max) | 10 mV over -40 °C to +85 °C - ensures reliable switching across temperature without calibration. |
| Output Type | Push-pull CMOS - drives logic inputs directly; no external pull-up required, reducing BOM count and board space. |
| Input Common-Mode Range | Rail-to-rail (VCC− −0.3 V to VCC+ +0.3 V) - accepts signals from ground to supply, simplifying sensor interface design. |
| ESD Protection | 2 kV HBM - enhances robustness during handling and PCB assembly in high-volume manufacturing. |
Pinout & Package
TS862AIDT is housed in an SO-8 package (8-pin small outline integrated circuit) with standard 1.27 mm pitch, 5.0 mm × 6.2 mm body, and ECOPACK® RoHS-compliant finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Comparator 1) | Accepts reference or sensed signal for first comparator; rail-to-rail compatible. |
| 2 | Non-inverting Input (Comparator 1) | Accepts variable input (e.g., sensor output); enables high-side or low-side threshold detection. |
| 3 | Output (Comparator 1) | Push-pull CMOS output; sinks/source up to 2.5 mA; directly interfaces with 3.3 V/5 V logic. |
| 4 | GND | Ground reference for both comparators and output stage; shared return path. |
| 5 | Output (Comparator 2) | Independent push-pull output; enables dual-threshold or window-comparator configurations. |
| 6 | Non-inverting Input (Comparator 2) | Second independent input; supports parallel sensing or hysteresis feedback paths. |
| 7 | Inverting Input (Comparator 2) | Second reference input; allows differential or complementary threshold setup. |
| 8 | VCC | Positive supply rail (2.7–10 V); powers both comparators and output drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 6 µA per comparator at 2.7 V - extends battery life in maintenance-free IoT endpoints. |
| Rail-to-rail CMOS inputs | Full VCC range operation - eliminates level-shifting for sensors with ground- or VCC-referenced outputs. |
| Push-pull output stage | No external pull-up needed - reduces component count and improves rise/fall time consistency. |
| High ESD immunity | 2 kV HBM - protects against electrostatic discharge during automated assembly and field handling. |
| Latch-up immunity | Class A certified - prevents destructive latch-up under transient overvoltage or supply sequencing faults. |
Applications
| Smoke Detector Threshold Sensing | Portable Radio Signal Strength Monitoring |
|---|---|
|
Use Scenario: Detecting ionization chamber current changes indicating smoke presence in battery-powered residential alarms. IC Role / Device Role / Timing Role: Dual comparator compares chamber output against upper/lower thresholds to trigger alarm state with hysteresis. Use Value: 6 µA/channel current enables >5-year shelf life on CR123A; push-pull outputs drive buzzer driver directly without pull-ups. |
Use Scenario: Monitoring RF detector diode output to indicate received signal strength in handheld transceivers. IC Role / Device Role / Timing Role: Single comparator detects RSSI crossing programmable threshold; second channel monitors battery voltage. Use Value: Rail-to-rail inputs accept 0–3.3 V detector output; 500 ns delay ensures timely channel activity indication. |
| Low-Power Gas Sensor Interface | USB-C Power Negotiation Comparator |
|
Use Scenario: Interfacing electrochemical gas sensor output to MCU ADC reference or wake-up interrupt logic. IC Role / Device Role / Timing Role: Comparator converts analog gas concentration into digital alert when exceeding safety limit. Use Value: 10 mV max VIO ensures accurate 50 ppm CO detection; 2.7 V min supply supports direct connection to buck-boost LDO. |
Use Scenario: Validating CC line voltage levels during USB-C power delivery negotiation in portable chargers. IC Role / Device Role / Timing Role: Precision comparator validates ±0.5 V CC line thresholds per USB PD spec before enabling power path. Use Value: 70 dB CMRR rejects noise from adjacent power switches; 2.7–10 V operation matches system rail flexibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV393IDR | Higher supply current (20 µA/channel), open-drain outputs, wider VCC range (2.7–5.5 V only). | Requires external pull-up; less suitable for ultra-low-power battery systems but better for mixed-voltage logic interfacing. | Select LMV393IDR if open-drain flexibility and higher speed (400 ns) outweigh current penalty. |
| TLV3702CDR | Lower VIO (3 mV typ), rail-to-rail I/O, but higher ICC (12 µA/channel at 3 V) and no Class A latch-up rating. | Better DC accuracy for precision thresholding; lacks latch-up immunity for harsh industrial environments. | Choose TLV3702CDR when sub-mV offset is critical and latch-up risk is mitigated by system-level protection. |
Compared with TS862AIDT, LMV393IDR trades 3.3× higher current for open-drain versatility, while TLV3702CDR improves offset by 4× but increases power and removes latch-up assurance - making TS862AIDT optimal for long-life, robust, dual-threshold battery systems.
Availability
TS862AIDT is available at Aetrix Electronics and suitable for battery-powered alarms, portable communication systems, and smoke/gas/fire detectors requiring stable component supply across extended production lifecycles.
Supply support for TS862AIDT 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
TS862AIDT belongs to the TS86x rail-to-rail micropower comparator family, engineered specifically for ultra-low-power sensing and threshold-detection applications in battery-constrained and space-sensitive systems.
FAQ
What is the maximum operating temperature for TS862AIDT?
The TS862AIDT is specified for continuous operation from -40 °C to +85 °C ambient temperature, with absolute maximum junction temperature rated at 150 °C. Thermal resistance junction-to-ambient is 125 °C/W in SO-8 package, requiring minimal heatsinking in typical PCB layouts.
Does TS862AIDT require external pull-up resistors on its outputs?
No. TS862AIDT features push-pull CMOS outputs capable of sourcing and sinking up to 2.5 mA, allowing direct connection to microcontroller GPIO pins or logic inputs without external pull-up resistors - confirmed in Section 1 of the datasheet (Doc ID 6422 Rev 3).
Is TS862AIDT pin-compatible with TS862IDT?
Yes. TS862AIDT and TS862IDT share identical SO-8 pinout, electrical specifications, and thermal characteristics; the 'A' suffix denotes improved input offset voltage (10 mV max vs. 15 mV max), with no mechanical or functional pinout differences.
Can TS862AIDT operate from a single 1.8 V supply?
No. TS862AIDT has a minimum supply voltage of 2.7 V per Absolute Maximum Ratings (Table 1) and Operating Conditions (Table 2); attempting 1.8 V operation falls outside guaranteed specification and may result in undefined output behavior or failure to switch.
TS862AIDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 10V
- :
- 7mV @ 5V
- Voltage - Input Offset (Max):
- 300pA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 16µA
- Current - Quiescent (Max):
- 70dB CMRR
- CMRR, PSRR (Typ):
- 2µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-SOIC
TS862AIDT FAQ
1.How can I place an order for TS862AIDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS862AIDT 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 TS862AIDT reliable?
The price and inventory of TS862AIDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS862AIDT is usually 5 days.
3.What payment methods are accepted for TS862AIDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS862AIDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS862AIDT?
TS862AIDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS862AIDT 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 TS862AIDT?
For technical support, including TS862AIDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS862AIDT requirements.
6.How does Aetrix verify that TS862AIDT is sourced from the original manufacturer or authorized distributors?
All TS862AIDT 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 TS862AIDT meets industry standards.
7.What is the process for return or replacement of TS862AIDT?
All TS862AIDT units undergo pre-shipment inspection (PSI). If there is an issue with TS862AIDT, 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 TS862AIDT part is unused and in its original packaging.
Return procedure for TS862AIDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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