Overview
The TS391ILT, produced by STMicroelectronics, is a low-power single voltage comparator designed to operate over a wide range of supply voltages. This device is particularly suited for applications requiring low power consumption and high versatility in voltage supply. It can operate from a single supply voltage ranging from 2 V to 36 V or from dual supplies ranging from ±1 V to ±18 V. The TS391ILT is known for its very low supply current, making it an efficient choice for various electronic systems.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage Range | 2 V | - | 36 V | V |
| Dual Supply Voltage Range | ±1 V | - | ±18 V | V |
| Supply Current | - | 0.2 mA | - | mA |
| Input Bias Current | 25 nA | 250 nA | 400 nA | nA |
| Input Offset Current | 5 nA | 50 nA | 150 nA | nA |
| Input Offset Voltage (TS391) | 1 mV | 5 mV | 9 mV | mV |
| Input Offset Voltage (TS391A) | 1 mV | 1.5 mV | 2 mV | mV |
| Output Saturation Voltage (Io = 4 mA) | - | 250 mV | - | mV |
Key Features
- Wide single supply voltage range or dual supplies: 2 V to 36 V or ±1 V to ±18 V.
- Very low supply current: 0.2 mA independent of supply voltage.
- Low input bias current: 25 nA typical.
- Low input offset current: ±5 nA typical.
- Low input offset voltage: ±2 mV maximum for TS391A.
- Input common-mode voltage range includes ground.
- Low output saturation voltage: 250 mV typical at Io = 4 mA.
- TTL, DTL, ECL, CMOS compatible outputs.
Applications
The TS391ILT is versatile and can be used in a variety of applications, including:
- Automotive systems: Due to its wide supply voltage range and low power consumption, it is suitable for use in automotive electronics.
- Industrial control systems: It can be used in control circuits that require precise voltage comparisons.
- Consumer electronics: Ideal for battery-powered devices where low power consumption is crucial.
- Medical devices: Suitable for medical equipment that requires reliable and low-power voltage comparison.
Q & A
- What is the supply voltage range of the TS391ILT?
The TS391ILT can operate from a single supply voltage ranging from 2 V to 36 V or from dual supplies ranging from ±1 V to ±18 V. - What is the typical supply current of the TS391ILT?
The typical supply current is 0.2 mA, independent of the supply voltage. - What are the input bias and offset currents of the TS391ILT?
The input bias current is typically 25 nA, and the input offset current is typically ±5 nA. - What is the input offset voltage for the TS391A version?
The input offset voltage for the TS391A version is typically ±1.5 mV and a maximum of ±2 mV. - Is the output of the TS391ILT compatible with other logic families?
Yes, the output is compatible with TTL, DTL, ECL, and CMOS logic families. - What is the typical output saturation voltage of the TS391ILT?
The typical output saturation voltage is 250 mV at an output current of 4 mA. - Can the TS391ILT operate with its input common-mode voltage range including ground?
Yes, the input common-mode voltage range includes ground, even when operated from a single power supply voltage. - What are some common applications of the TS391ILT?
The TS391ILT is commonly used in automotive systems, industrial control systems, consumer electronics, and medical devices. - What are the package options available for the TS391ILT?
The TS391ILT is available in SOT23-5 and DFN8 2x2 packages. - Where can I find detailed specifications and datasheets for the TS391ILT?
Detailed specifications and datasheets can be found on the STMicroelectronics official website and other electronic component databases like Digi-Key and Mouser.
