Overview
The TS391RILT is a low-power single voltage comparator manufactured by STMicroelectronics. This device is designed to operate from a single supply over a wide range of voltages, from 2 V to 36 V, or from dual supplies ranging from ±1 V to ±18 V. It features a unique characteristic where the input common-mode voltage range includes ground, even when operated from a single power supply voltage. The TS391RILT is packaged in a SOT23-5 format, making it suitable for various applications requiring compact and efficient voltage comparison.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 2 V to 36 V or ±1 V to ±18 V | V |
| Input Offset Voltage | 1 mV (typ), 5 mV (max) | mV |
| Input Bias Current | 25 nA (typ) | nA |
| Input Offset Current | ±5 nA (typ) | nA |
| Supply Current | 0.2 mA (typ) at VCC+ = 5 V | mA |
| Response Time | 1.3 µs (typ) for a 100 mV input step | µs |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | SOT23-5 | |
| Number of Pins | 5 |
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 (Io = 4 mA)
- Differential input voltage range equal to the supply voltage
- TTL, DTL, ECL, CMOS compatible outputs
Applications
The TS391RILT is suitable for a variety of applications, including:
- Communications equipment
- Computers and peripherals
- Industrial control systems
- Automotive systems (for automotive-grade versions)
Q & A
- What is the supply voltage range of the TS391RILT?
The TS391RILT operates from a single supply voltage range of 2 V to 36 V or from dual supplies ranging from ±1 V to ±18 V. - What is the typical input offset voltage of the TS391RILT?
The typical input offset voltage is 1 mV, with a maximum of 5 mV. - What is the input bias current of the TS391RILT?
The input bias current is typically 25 nA. - What is the response time of the TS391RILT for a 100 mV input step?
The response time is typically 1.3 µs for a 100 mV input step. - What is the operating temperature range of the TS391RILT?
The operating temperature range is from -40°C to 125°C. - In what package is the TS391RILT available?
The TS391RILT is available in a SOT23-5 package. - Is the TS391RILT compatible with various logic families?
Yes, it is compatible with TTL, DTL, ECL, and CMOS logic families. - What is the typical supply current of the TS391RILT at VCC+ = 5 V?
The typical supply current is 0.2 mA at VCC+ = 5 V. - Does the TS391RILT have automotive-grade versions?
Yes, there are automotive-grade versions available, such as the TS391IYLT and TS391RIYLT. - What is the differential input voltage range of the TS391RILT?
The differential input voltage range is equal to the supply voltage.
