ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
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：-
Download product information
Overview
The TSM109ID is a dual analog 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 single supply from 2V to 36V or dual supplies of ±1V to ±18V. Key electrical parameters include a typical input bias current of 25nA, input offset voltage of ±1mV, and a response time of 1.3µs. It supports a wide operating temperature range from -40°C to +105°C.
Feature Summary
- Integrates two high-speed comparators and a precision shunt voltage reference within a single monolithic IC.
- Features low input bias current and low input offset voltage for accurate signal comparison.
- Includes a fixed 2.5V voltage reference with sink current capability ranging from 1mA to 100mA.
- Supports differential input voltage ranges equal to the supply voltage.
Applications
- Power supply management systems
- Data acquisition systems
- Voltage monitoring circuits
Procurement Notes
Verify component authenticity through authorized distributors as counterfeit components exist. Confirm package type (SO-8) and suffix 'D' matches requirements. Check RoHS compliance status and moisture sensitivity level before assembly. Ensure ESD protection measures are followed during handling due to the integrated electrostatic discharge protection specifications.
Selection Notes
Select this component when space and cost savings are critical for designs requiring both comparison and reference functions. Consider the PNP input stage characteristics which result in constant input bias current independent of output state. Evaluate the wide common-mode voltage range including ground for compatibility with various signal sources.
Part Context
The TSM109 series includes variants like TSM109A offering tighter voltage reference precision. The 'D' suffix denotes the Small Outline Package (SO-8). Related parts may include the DIP-8 version (TSM109N) for through-hole applications. The device belongs to the broader category of linear amplifier ICs and analog comparators.
Replacement Considerations
Check datasheets for pin-compatible alternatives such as other dual comparator/reference ICs. Verify that replacement parts match the 2.5V reference voltage and similar input bias/offset specifications. Ensure thermal resistance and package dimensions align with existing PCB layouts.
FAQ
What is the direction of the input bias current?
The input bias current flows out of the IC due to the PNP input stage configuration.
Can the differential input voltage exceed the supply voltage?
Yes, positive voltage excursions of one input may exceed the power supply level as long as the other input remains within the common-mode range.
