Overview
The TSZ121ILT is a high-precision single operational amplifier from the TSZ12x series, manufactured by STMicroelectronics. This device is renowned for its very low input offset voltage with virtually zero drift, making it highly accurate and stable across a wide temperature range. The TSZ121ILT offers rail-to-rail input and output, an excellent speed/power consumption ratio, and a 400 kHz gain-bandwidth product, all while consuming less than 40 µA at 5 V. Its ultra-low input bias current and low power consumption make it ideal for various applications, including sensor interfaces, battery-powered devices, and portable electronics.
Key Specifications
| Parameter | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (Vio) | T = 25 °C | 1 | 5 | - | µV |
| Input Offset Voltage (Vio) | -40 °C < T < 125 °C | - | - | 8 | µV |
| Input Offset Voltage Drift (ΔVio/ΔT) | -40 °C < T < 125 °C | 10 | 30 | - | nV/°C |
| Input Bias Current (Iib) | T = 25 °C | 50 | 200 | - | pA |
| Supply Current (ICC) | T = 25 °C, RL > 1 MΩ | 29 | 40 | - | µA |
| Gain Bandwidth Product (GBP) | RL = 10 kΩ, CL = 100 pF | - | - | 400 | kHz |
| Slew Rate (SR) | - | - | - | 0.19 | V/μs |
| Operating Temperature Range | - | -40 | - | 125 | °C |
| Supply Voltage Range | - | 1.8 | - | 5.5 | V |
Key Features
- Very high accuracy and stability with an input offset voltage of 5 µV max at 25 °C and 8 µV over the full temperature range (-40 °C to 125 °C).
- Rail-to-rail input and output, ensuring full utilization of the supply voltage range.
- Excellent speed/power consumption ratio with a gain-bandwidth product of 400 kHz and low power consumption of less than 40 µA at 5 V.
- Ultra-low input bias current, contributing to high precision and low noise.
- High tolerance to ESD (4 kV HBM) and internal ESD diode protection on the inputs.
- Extended temperature range from -40 °C to 125 °C, making it suitable for a wide range of applications.
- Available in micro-packages such as SOT23-5, SC70-5, and others, which are compatible with industry standards.
Applications
- Battery-powered applications: Ideal for devices that require low power consumption and high precision.
- Portable devices: Suitable for handheld and mobile devices due to its low power and compact packaging.
- Signal conditioning: Used in various signal conditioning circuits where high accuracy and stability are crucial.
- Medical instrumentation: Applied in medical devices that require precise and reliable signal amplification.
- Sensor interfaces: Often used to amplify signals from sensors in various industrial and consumer applications.
Q & A
- What is the input offset voltage of the TSZ121ILT at 25 °C?
The input offset voltage is 5 µV max at 25 °C.
- What is the gain-bandwidth product of the TSZ121ILT?
The gain-bandwidth product is 400 kHz.
- What is the typical supply current of the TSZ121ILT at 5 V?
The typical supply current is less than 40 µA at 5 V.
- What is the operating temperature range of the TSZ121ILT?
The operating temperature range is from -40 °C to 125 °C.
- What is the slew rate of the TSZ121ILT?
The slew rate is 0.19 V/μs.
- What are the common applications of the TSZ121ILT?
Common applications include battery-powered devices, portable electronics, signal conditioning, and medical instrumentation.
- What is the input bias current of the TSZ121ILT?
The input bias current is typically 200 pA at 25 °C.
- Does the TSZ121ILT have ESD protection?
Yes, the TSZ121ILT has internal ESD diode protection on the inputs.
- What are the available packages for the TSZ121ILT?
The TSZ121ILT is available in packages such as SOT23-5 and SC70-5.
- Is the TSZ121ILT suitable for automotive applications?
While the TSZ121ILT is primarily industrial, there are automotive-grade versions available in the TSZ12x series, such as the TSZ121IYLT.
