Overview
The TS942AIPT is a dual operational amplifier from STMicroelectronics, part of the TS94x series. This micropower op-amp is designed for low-power applications and operates over a wide supply voltage range of 2.5 V to 10 V. It is characterized by its rail-to-rail output voltage swing, ultra-low input bias current, and single supply operation, making it ideal for battery-powered systems and other low-power applications.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 2.5 | 10 | V | |
| Operating Temperature Range | -40 | 85 | °C | |
| Input Offset Voltage (Vio) | 10 | 5 | 2 | mV |
| Input Offset Voltage Drift (ΔVio) | 7 | µV/°C | ||
| Input Bias Current (Iib) | 1 | 150 | pA | |
| Common Mode Rejection Ratio (CMR) | 60 | 85 | dB | |
| Supply Voltage Rejection Ratio (SVR) | 50 | 85 | dB | |
| Gain Bandwidth Product (GBP) | 10 | kHz | ||
| Slew Rate (SR) | 3 | 4.5 | V/ms | |
| Supply Current (ICC) per Amplifier | 1.2 | 1.85 | µA | |
| Output Source/Sink Current | 350/280 | 650/500 | µA |
Key Features
- Rail-to-rail output voltage swing
- Micropower consumption (1.2 µA per amplifier)
- Single supply operation (2.5 V to 10 V)
- CMOS inputs with ultra-low input bias current (1 pA typical)
- ESD protection (2 kV HBM, 200 V MM, 1.5 kV CDM)
- Latch-up immunity (class A)
- Available in SOT23-5, SO-8, TSSOP8, and TSSOP14 packages
Applications
- Battery-powered systems (e.g., alarm systems)
- Portable communication systems (e.g., pagers)
- Smoke/gas/fire detectors
- Instrumentation and sensing applications
- pH meters
Q & A
- What is the supply voltage range of the TS942AIPT? The supply voltage range is 2.5 V to 10 V.
- What is the typical input bias current of the TS942AIPT? The typical input bias current is 1 pA.
- What is the gain bandwidth product of the TS942AIPT? The gain bandwidth product is 10 kHz.
- What are the operating temperature ranges for the TS942AIPT? The operating temperature range is -40°C to +85°C.
- Does the TS942AIPT have ESD protection? Yes, it has ESD protection up to 2 kV HBM, 200 V MM, and 1.5 kV CDM.
- In what packages is the TS942AIPT available? It is available in SOT23-5, SO-8, TSSOP8, and TSSOP14 packages.
- What is the typical supply current per amplifier for the TS942AIPT? The typical supply current per amplifier is 1.2 µA.
- What are some common applications of the TS942AIPT? Common applications include battery-powered systems, portable communication systems, smoke/gas/fire detectors, instrumentation, and pH meters.
- Does the TS942AIPT have latch-up immunity? Yes, it has latch-up immunity (class A).
- What is the slew rate of the TS942AIPT? The slew rate is 3 to 4.5 V/ms.
