Overview
The TSZ122IST, part of the TSZ12x series from STMicroelectronics, is a high-precision dual operational amplifier. This device is renowned for its very low input offset voltage and virtually zero drift, making it ideal for applications requiring high accuracy and stability. The TSZ122IST operates with a supply voltage range of 1.8 to 5.5 V and consumes less than 40 µA at 5 V, making it suitable for battery-powered and portable devices. The amplifier features rail-to-rail input and output, a gain bandwidth product of 400 kHz, and high tolerance to ESD (4 kV HBM). It is available in various packages, including MiniSO8 and SO8, to accommodate different design needs.
Key Specifications
| Parameter | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | 1.8 | 5.5 | V | ||
| Input Offset Voltage (Vio) | T = 25 °C | 1 | 5 | µV | |
| Input Offset Voltage (Vio) | -40 °C < T < 125 °C | 8 | µV | ||
| Input Bias Current (Iib) | T = 25 °C | 50 | 200 | pA | |
| Input Bias Current (Iib) | -40 °C < T < 125 °C | 300 | pA | ||
| Common Mode Rejection Ratio (CMR) | T = 25 °C | 110 | 122 | dB | |
| Gain Bandwidth Product (GBP) | RL = 10 kΩ, CL = 100 pF | 400 | kHz | ||
| Slew Rate (SR) | 0.17 | V/μs | |||
| Supply Current (ICC) | T = 25 °C | 28 | 40 | µA | |
| Operating Temperature Range | -40 | 125 | °C |
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 capabilities.
- Low supply voltage range of 1.8 to 5.5 V.
- Low power consumption, less than 40 µA at 5 V.
- High gain bandwidth product of 400 kHz.
- High tolerance to ESD (4 kV HBM).
- Ultra-low input bias current.
- Extended temperature range from -40 °C to 125 °C.
- Available in various packages such as MiniSO8 and SO8.
Applications
- Battery-powered applications.
- Portable devices.
- Signal conditioning.
- Medical instrumentation.
- Sensor interfaces.
Q & A
- What is the input offset voltage of the TSZ122IST at 25 °C?
The input offset voltage is 5 µV max at 25 °C.
- What is the operating temperature range of the TSZ122IST?
The operating temperature range is -40 °C to 125 °C.
- What is the supply voltage range for the TSZ122IST?
The supply voltage range is 1.8 to 5.5 V.
- What is the typical supply current of the TSZ122IST at 5 V?
The typical supply current is 40 µA at 5 V.
- What is the gain bandwidth product of the TSZ122IST?
The gain bandwidth product is 400 kHz.
- Is the TSZ122IST tolerant to ESD?
Yes, it has a high tolerance to ESD with 4 kV HBM.
- What are the common applications of the TSZ122IST?
Common applications include battery-powered devices, portable devices, signal conditioning, and medical instrumentation.
- What is the slew rate of the TSZ122IST?
The slew rate is approximately 0.17 V/μs.
- What packages are available for the TSZ122IST?
The TSZ122IST is available in packages such as MiniSO8 and SO8.
- What is the common mode rejection ratio (CMR) of the TSZ122IST?
The CMR is 110 to 122 dB at 25 °C.
