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Product Detailed Parameters
- Description：IC COMPARATOR 2 W/VOLT REF 8SOIC
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Type：with Voltage Reference
- Number of Elements：2
- Output Type：-
- Voltage - Supply, Single/Dual (±)：2V ~ 36V, ±1V ~ 18V
- Voltage - Input Offset (Max)：5mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：20mA @ 5V
- Current - Quiescent (Max)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 105°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The TSM109AID is a dual comparator and voltage reference IC manufactured by STMicroelectronics. It integrates two comparators with a fixed 2.5V shunt voltage reference in an SO-8 package. The device operates on a wide supply range of ±1V to ±18V (or 2V to 36V single supply). Key electrical parameters include a typical input bias current of 25nA, input offset voltage of ±1mA typ, and low output saturation voltage of 250mV at 4mA sink current. The total supply current is approximately 1.1mA independent of supply voltage. The operational temperature range spans from -40°C to +105°C.
Feature Summary
- Integrates two comparators and a fixed 2.5V voltage reference for space savings
- Features low input bias current and low input offset voltage for precision
- Includes a wide power supply range supporting both single and dual configurations
- Offers low output saturation voltage and high differential input voltage range
Applications
- Power supply management systems
- Data acquisition systems
- Voltage monitoring circuits
- Current limiting applications
Procurement Notes
Verify the specific suffix 'D' confirms the Small Outline Package (SO-8) configuration as documented in the datasheet. Confirm that the 'A' designation indicates the tighter voltage precision variant if required for your design. Check for any Product Change Notifications or discontinuation notices associated with this part number before finalizing procurement plans.
Selection Notes
Select the TSM109AID when a combined comparator and voltage reference solution is needed to reduce component count. Ensure the application requires a fixed 2.5V reference and dual comparator functionality within an SO-8 footprint. Verify that the supply voltage requirements fall within the specified ±1V to ±18V range and that the operating temperature aligns with industrial standards.
Part Context
The TSM109 series includes variants such as TSM109 and TSM109A, differing primarily in voltage reference precision. The 'D' suffix denotes the SO-8 surface mount package, while 'N' indicates a Dual In-Line Package. This family is designed for applications requiring integrated voltage sensing and comparison without external reference components.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation.
